{"title":"Sensors","description":"\u003cp data-path-to-node=\"6\"\u003eWelcome to our comprehensive selection of sensor modules, engineered for makers, professionals, and students. Whether you are building with Arduino, Raspberry Pi, or ESP32 platforms, our high-quality electronic components provide the precise input data needed for your prototyping and development needs.\u003c\/p\u003e\n\u003cp data-path-to-node=\"6\"\u003e \u003c\/p\u003e\n\u003ch2 data-path-to-node=\"7\"\u003eEssential Sensors for Every Electronic Project\u003c\/h2\u003e\n\u003cp data-path-to-node=\"8\"\u003eChoosing the right input module is crucial for developing smart home automation, environmental monitoring systems, or interactive STEM robotics. Our catalogue features reliable hardware designed for seamless integration, ensuring high stability and accurate real-world data collection for any application.\u003c\/p\u003e\n\u003cp data-path-to-node=\"8\"\u003e \u003c\/p\u003e\n\u003ch3 data-path-to-node=\"9\"\u003eExplore Our Diverse Sensor Categories\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-path-to-node=\"10,0,0\"\u003e\n\u003cb data-index-in-node=\"0\" data-path-to-node=\"10,0,0\"\u003eEnvironmental \u0026amp; Weather:\u003c\/b\u003e Temperature and humidity (DHT11, DS18B20), barometric pressure, and UV sensors for climate monitoring and weather stations.\u003c\/li\u003e\n\u003cli data-path-to-node=\"10,1,0\"\u003e\n\u003cb data-index-in-node=\"0\" data-path-to-node=\"10,1,0\"\u003eMotion \u0026amp; Distance:\u003c\/b\u003e Ultrasonic (HC-SR04), PIR infrared, and ToF laser modules for obstacle avoidance, robotics, and proximity detection.\u003c\/li\u003e\n\u003cli data-path-to-node=\"10,2,0\"\u003e\n\u003cb data-index-in-node=\"0\" data-path-to-node=\"10,2,0\"\u003eGas \u0026amp; Air Quality:\u003c\/b\u003e MQ series sensors for detecting carbon monoxide, alcohol, and hazardous gases in industrial or DIY safety setups.\u003c\/li\u003e\n\u003cli data-path-to-node=\"10,3,0\"\u003e\n\u003cb data-index-in-node=\"0\" data-path-to-node=\"10,3,0\"\u003eBiometric \u0026amp; Health:\u003c\/b\u003e Pulse, ECG (AD8232), and biometric sensors for developing wearable technology prototypes.\u003c\/li\u003e\n\u003cli data-path-to-node=\"10,4,0\"\u003e\n\u003cb data-index-in-node=\"0\" data-path-to-node=\"10,4,0\"\u003eForce \u0026amp; Weight:\u003c\/b\u003e Load cells and force-sensitive resistors (FSR) for digital scales and precise impact testing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3 data-path-to-node=\"11\"\u003eHow to Choose the Right Sensor Module?\u003c\/h3\u003e\n\u003cp data-path-to-node=\"12\"\u003eWhen selecting a module, always consider the operating voltage (3.3V vs. 5V) to match your mainboard and prevent hardware damage. Additionally, verify the required output type—analog signals or digital interfaces like I2C, SPI, and I2S—to ensure full compatibility with your existing circuitry and programming libraries.\u003c\/p\u003e","products":[{"product_id":"e18-d80nk-adjustable-infrared-obstacle-avoidance-detection-sensor-5v-switch-detect-3-80cm-for-arduino","title":"E18-D80NK Adjustable Infrared Obstacle Avoidance Sensor 3-80cm (5V)","description":"\u003cp\u003eThe E18-D80NK is a versatile and reliable adjustable infrared photoelectric sensor designed for precise obstacle detection in various applications. This compact sensor integrates both emitter and receiver, offering a robust solution for projects requiring accurate distance sensing.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eKey Features:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eAdjustable Sensing Range:\u003c\/b\u003e Easily fine-tune the detection distance from 3cm to 80cm to suit your specific needs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWide Application:\u003c\/b\u003e Ideal for robot obstacle avoidance, production line counting, automation projects, and more.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHigh Performance:\u003c\/b\u003e\n\u003cul\u003e\n\u003cli\u003eFast response time: Less than 2ms for quick detection.\u003c\/li\u003e\n\u003cli\u003eDetects both transparent and opaque objects.\u003c\/li\u003e\n\u003cli\u003eResistant to visible light interference (sunlight \u0026lt; 10000LX, incandescent \u0026lt; 3000LX).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eEasy to Use:\u003c\/b\u003e Simple wiring (Brown: 5V+, Blue: Ground, Black: OUT 5V) for straightforward integration with Arduino and other microcontrollers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDurable Construction:\u003c\/b\u003e Made with a robust plastic casing for long-lasting performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLow Power Consumption:\u003c\/b\u003e Consumes less than 25mA, making it energy efficient for your projects.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eTechnical Specifications:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eModel:\u003c\/b\u003e E18-D80NK\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOperating Voltage (U):\u003c\/b\u003e 5V DC\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOutput Current (I):\u003c\/b\u003e 100mA (DC\/SCR\/Relay Control output)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCurrent Consumption:\u003c\/b\u003e \u0026lt; 25mA\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eResponse Time:\u003c\/b\u003e \u0026lt; 2ms\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSensing Distance (Sn):\u003c\/b\u003e 3-80cm (adjustable)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePointing Angle:\u003c\/b\u003e ≤15°\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDetection Objects:\u003c\/b\u003e Transparent or Opaque\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWorking Environment Temperature:\u003c\/b\u003e -25°C to +55°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eStandard Sensing Object:\u003c\/b\u003e Sunlight \u0026lt; 10000LX, Incandescent \u0026lt; 3000LX\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCase Material:\u003c\/b\u003e Plastic\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":35829360984215,"sku":"","price":45.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/products\/e18-d80nk-infrared-sensor-with-nuts.jpg?v=1754479197"},{"product_id":"mega2560-sensor-shield-v2-0","title":"MEGA 2560 Sensor Shield V2.0 for Arduino Projects","description":"\u003cp\u003eThis Sensor Shield V2.0 is an easy-to-use expansion board designed for Arduino enthusiasts and engineers. It simplifies the connection of a wide range of modules, sensors, and components to your MEGA 2560 board without the need for complex wiring. Its plug-and-play design is perfect for beginners and advanced users looking to save time on circuit setup.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eKey Features:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003ePlug \u0026amp; Play Simplicity:\u003c\/b\u003e Effortlessly connect most sensor shields, servos, and modules.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFull Pinout:\u003c\/b\u003e All digital and analog interfaces are fully broken out for easy access.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWide Compatibility:\u003c\/b\u003e Fully compatible with Arduino Mega boards and various interfaces.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSupports Multiple Modules:\u003c\/b\u003e Dedicated interfaces for popular modules including:\n\u003cul\u003e\n\u003cli\u003eIIC interface\u003c\/li\u003e\n\u003cli\u003eBluetooth module\u003c\/li\u003e\n\u003cli\u003eSD card module\u003c\/li\u003e\n\u003cli\u003eAPC220 wireless RF modules\u003c\/li\u003e\n\u003cli\u003eURF ultrasonic sensors\u003c\/li\u003e\n\u003cli\u003eLCD serial and parallel interfaces\u003c\/li\u003e\n\u003cli\u003e32-road Servo Motor Drive Shield\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eWhy Choose This Sensor Shield?\u003c\/b\u003e This open-source physical computing platform is the ideal solution for developing standalone interactive objects. Whether you're connecting it to software like Flash or Processing, this shield streamlines your project development, making it an essential tool for any electronics lab or workshop.\u003c\/p\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":37869534183575,"sku":"","price":39.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/products\/mega2560-sensor-shield-v2-0-front-view.jpg?v=1756048872"},{"product_id":"hc-sr04-ultrasonic-sensor-module","title":"HC-SR04 Ultrasonic Distance Sensor for Arduino \u0026 Raspberry Pi","description":"\u003cp\u003eAdd precise \"eyes\" to your Arduino, Raspberry Pi, or robotics project with the \u003cb\u003eHC-SR04 Ultrasonic Distance Sensor\u003c\/b\u003e. This module is renowned for its stable performance and high accuracy, making it an excellent choice for non-contact distance measurement, object avoidance, and liquid level detection.\u003c\/p\u003e\n\u003cp\u003eIt offers a wide detection range from 2cm to 4.5 meters with an impressive precision of up to 0.3cm. It even handles super-close \"blind spots\" (3cm), ensuring you get reliable data.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eKey Features:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eHigh Precision:\u003c\/b\u003e Ranging accuracy can reach up to 0.3cm for stable, reliable data.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWide Range:\u003c\/b\u003e Detects distances from 2cm all the way to 450cm (4.5 meters).\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMinimal Blind Spot:\u003c\/b\u003e A small 3cm blind spot makes it highly effective for close-proximity detection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eBroad Compatibility:\u003c\/b\u003e Works perfectly with Arduino, Raspberry Pi, and other 5V microcontrollers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLow Power Consumption:\u003c\/b\u003e Quiescent current is less than 2mA, ideal for battery-powered projects.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFocused Detection:\u003c\/b\u003e A sensing angle of 15 degrees helps to measure objects directly in front of the sensor.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eHow It Works:\u003c\/b\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cb\u003eTrigger:\u003c\/b\u003e Supply a high-level signal of at least 10us (microseconds) to the \u003ccode\u003eTrig\u003c\/code\u003e pin.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTransmit:\u003c\/b\u003e The module automatically sends out eight 40kHz ultrasonic square waves.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eReceive:\u003c\/b\u003e The module automatically detects if a returning pulse signal is received.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOutput:\u003c\/b\u003e If a signal returns, the \u003ccode\u003eEcho\u003c\/code\u003e pin will output a high-level signal. The duration of this high-level signal is the total time from transmission to reception.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCalculation:\u003c\/b\u003e Distance = (High-Level Time \u003cspan class=\"math-inline\" data-math=\"\\times\"\u003e$\\times$\u003c\/span\u003e Speed of Sound (340m\/s)) \/ 2\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cb\u003eProduct Specifications:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWorking Voltage: DC 5V\u003c\/li\u003e\n\u003cli\u003eQuiescent Current: \u0026lt; 2mA\u003c\/li\u003e\n\u003cli\u003eOutput Signal: High level 5V \/ Low level 0V\u003c\/li\u003e\n\u003cli\u003eSensing Angle: \u003cspan class=\"math-inline\" data-math=\"\\le\"\u003e$\\le$\u003c\/span\u003e 15 degrees\u003c\/li\u003e\n\u003cli\u003eDetection Range: 2cm - 450cm\u003c\/li\u003e\n\u003cli\u003ePinout: Vcc, Trig, Echo, Gnd\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":38317316145303,"sku":"","price":20.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/products\/hc-sr04-ultrasonic-distance-sensor-module-arduino-raspberry-pi.png?v=1775575256"},{"product_id":"laser-sensor-ky-008","title":"KY-008 650nm Laser Sensor Module for Arduino","description":"\u003cp\u003eThe KY-008 is a compact and easy-to-use 650nm red laser sensor module, perfect for your Arduino projects. Featuring a 5mW laser dot diode with a copper head, it’s ideal for creating laser tripwires, security systems, and other light-based detection projects.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOperating Voltage: 5V DC\u003c\/li\u003e\n\u003cli\u003eOutput Wavelength: 650 nm (red laser)\u003c\/li\u003e\n\u003cli\u003eCompact 3-pin module\u003c\/li\u003e\n\u003cli\u003eFixed bolt holes for secure and easy installation\u003c\/li\u003e\n\u003cli\u003eHigh-quality 5mW laser diode with a durable copper head\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eTechnical Specifications:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eVoltage: 5V\u003c\/li\u003e\n\u003cli\u003eCurrent: \u0026lt;40mA\u003c\/li\u003e\n\u003cli\u003eDimensions: 15mm x 25mm\u003c\/li\u003e\n\u003cli\u003eLaser output: 5mW\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eHow it Works:\u003c\/b\u003e The module is designed to be directly compatible with popular microcontrollers like Arduino. Simply connect the VCC and GND pins to your 5V power supply and the 'S' pin to a digital I\/O pin on your microcontroller. It's a great choice for hobbyists, students, and professionals looking to add a laser feature to their electronics projects.\u003c\/p\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":39377819893911,"sku":"21PS001265","price":10.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/products\/ky-008-650nm-laser-sensor-arduino.jpg?v=1756049264"},{"product_id":"a38-switch-module-for-smart-car","title":"A38 Touch Sensor Switch Module | DC 3-5V TTL Output for Arduino \u0026 DIY","description":"\u003ch2 data-path-to-node=\"8\"\u003eModernize Your Interface with Capacitive Touch Technology\u003c\/h2\u003e\n\u003cp data-path-to-node=\"9\"\u003eMechanical switches often suffer from contact bounce and physical wear over time. The \u003cb data-path-to-node=\"9\" data-index-in-node=\"86\"\u003eA38 Touch Sensor Module\u003c\/b\u003e solves this by utilizing capacitive sensing, allowing users to trigger actions with a simple tap on the gold-plated induction zone. This module is the perfect bridge between human interaction and digital logic.\u003c\/p\u003e\n\u003cp data-path-to-node=\"9\"\u003e \u003c\/p\u003e\n\u003ch3 data-path-to-node=\"10\"\u003eEngineered for Stability and Precision\u003c\/h3\u003e\n\u003cp data-path-to-node=\"11\"\u003eAt the heart of the A38 is a robust \u003cb data-path-to-node=\"11\" data-index-in-node=\"36\"\u003eoperational amplifier (LM393)\u003c\/b\u003e and triode circuit. This configuration ensures that the module maintains a \u003cb data-path-to-node=\"11\" data-index-in-node=\"141\"\u003estrong anti-interference capability\u003c\/b\u003e, preventing false triggers caused by environmental noise or electromagnetic interference. It operates on a versatile \u003cb data-path-to-node=\"11\" data-index-in-node=\"294\"\u003eDC 3-5V range\u003c\/b\u003e, making it compatible with most standard power rails found in Arduino, Raspberry Pi, and ESP32 ecosystems.\u003c\/p\u003e\n\u003cp data-path-to-node=\"11\"\u003e \u003c\/p\u003e\n\u003ch3 data-path-to-node=\"12\"\u003eSeamless Integration for Smart Projects\u003c\/h3\u003e\n\u003cp data-path-to-node=\"13\"\u003eThe board is designed with \"Plug-and-Play\" simplicity in mind. Using standard \u003cb data-path-to-node=\"13\" data-index-in-node=\"78\"\u003e2.54mm pitch headers\u003c\/b\u003e, it fits perfectly into breadboards or jumper wire setups. The onboard \u003cb data-path-to-node=\"13\" data-index-in-node=\"170\"\u003eTTL level indicator LED\u003c\/b\u003e provides instant visual feedback, making debugging a breeze during the development phase of your smart car or relay-controlled system.\u003c\/p\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":39627882889367,"sku":"21PS001227","price":20.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/products\/a38-touch-sensor-module-top-view.jpg?v=1770541280"},{"product_id":"ds18b20-temperature-measurement-sensor-module","title":"DS18B20 Digital Temperature Sensor Module for Arduino","description":"\u003cp data-start=\"346\" data-end=\"838\"\u003eThis DS18B20 digital temperature sensor module is a convenient solution designed for Arduino and various microcontroller (MCU) developers. Unlike the standalone DS18B20 chip, this module integrates the required pull-up resistor and a power indicator LED directly on the PCB. No more searching for resistors or dealing with complex breadboard wiring — simply connect three wires (Power, Ground, Data) to start reading accurate temperature values, greatly simplifying your development workflow.\u003c\/p\u003e\n\u003chr data-start=\"840\" data-end=\"843\"\u003e\n\u003ch4 data-start=\"845\" data-end=\"865\"\u003e\u003cstrong data-start=\"849\" data-end=\"865\"\u003eKey Features\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli data-start=\"867\" data-end=\"943\"\u003e\n\u003cstrong data-start=\"867\" data-end=\"890\"\u003eGenuine Sensor Chip\u003c\/strong\u003e\u003cbr data-start=\"890\" data-end=\"893\"\u003eUses an original DS18B20 temperature sensing chip.\u003c\/li\u003e\n\u003cli data-start=\"945\" data-end=\"1077\"\u003e\n\u003cstrong data-start=\"945\" data-end=\"969\"\u003ePlug-and-Play Design\u003c\/strong\u003e\u003cbr data-start=\"969\" data-end=\"972\"\u003eBuilt-in pull-up resistor allows direct connection to MCU I\/O pins with no additional soldering required.\u003c\/li\u003e\n\u003cli data-start=\"1079\" data-end=\"1182\"\u003e\n\u003cstrong data-start=\"1079\" data-end=\"1099\"\u003eStatus Indicator\u003c\/strong\u003e\u003cbr data-start=\"1099\" data-end=\"1102\"\u003eEquipped with an onboard power LED for easy visual confirmation of power status.\u003c\/li\u003e\n\u003cli data-start=\"1184\" data-end=\"1312\"\u003e\n\u003cstrong data-start=\"1184\" data-end=\"1206\"\u003eFlexible Expansion\u003c\/strong\u003e\u003cbr data-start=\"1206\" data-end=\"1209\"\u003eFeatures a 3-pin header footprint that allows users to replace or re-solder the DS18B20 chip if needed.\u003c\/li\u003e\n\u003cli data-start=\"1314\" data-end=\"1451\"\u003e\n\u003cstrong data-start=\"1314\" data-end=\"1338\"\u003eWide Voltage Support\u003c\/strong\u003e\u003cbr data-start=\"1338\" data-end=\"1341\"\u003eSupports 3.3V to 5V input — fully compatible with Arduino, Raspberry Pi, and various 5V\/3.3V microcontrollers.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1453\" data-end=\"1456\"\u003e\n\u003ch4 data-start=\"1458\" data-end=\"1490\"\u003e\u003cstrong data-start=\"1462\" data-end=\"1490\"\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli data-start=\"1494\" data-end=\"1546\"\u003e\n\u003cstrong data-start=\"1494\" data-end=\"1503\"\u003eSize:\u003c\/strong\u003e 21mm x 10mm (compact size, space-saving)\u003c\/li\u003e\n\u003cli data-start=\"1549\" data-end=\"1606\"\u003e\n\u003cstrong data-start=\"1549\" data-end=\"1576\"\u003eCommunication Protocol:\u003c\/strong\u003e 1-Wire single-bus interface\u003c\/li\u003e\n\u003cli data-start=\"1609\" data-end=\"1649\"\u003e\n\u003cstrong data-start=\"1609\" data-end=\"1631\"\u003eTemperature Range:\u003c\/strong\u003e −55°C to +125°C\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1651\" data-end=\"1654\"\u003e\n\u003ch4 data-start=\"1656\" data-end=\"1676\"\u003e\u003cstrong data-start=\"1660\" data-end=\"1676\"\u003eWiring Guide\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli data-start=\"1680\" data-end=\"1721\"\u003e\n\u003cstrong data-start=\"1680\" data-end=\"1688\"\u003eVCC:\u003c\/strong\u003e Connect to 3.3V–5V power input\u003c\/li\u003e\n\u003cli data-start=\"1724\" data-end=\"1741\"\u003e\n\u003cstrong data-start=\"1724\" data-end=\"1732\"\u003eGND:\u003c\/strong\u003e Ground\u003c\/li\u003e\n\u003cli data-start=\"1744\" data-end=\"1815\"\u003e\n\u003cstrong data-start=\"1744\" data-end=\"1760\"\u003eDQ (or OUT):\u003c\/strong\u003e Digital signal output (connect to Arduino Digital Pin)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1817\" data-end=\"1820\"\u003e\n\u003ch4 data-start=\"1822\" data-end=\"1846\"\u003e\u003cstrong data-start=\"1826\" data-end=\"1846\"\u003ePackage Includes\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli data-start=\"1850\" data-end=\"1891\"\u003e\u003cstrong data-start=\"1850\" data-end=\"1891\"\u003e1 × DS18B20 Temperature Sensor Module\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":39697354522775,"sku":"21PS001468","price":20.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/products\/ds18b20-temperature-sensor-module-arduino-front-view.jpg?v=1763634571"},{"product_id":"zmpt101b-ac-voltage-sensor-mutual-module","title":"ZMPT101B AC Voltage Sensor Module for Arduino (0-250V AC)","description":"\u003cp\u003e\u003cb\u003eOverview:\u003c\/b\u003e Accurately monitor AC voltage in your projects with the ZMPT101B AC Voltage Sensor Module. This active single-phase voltage transformer module provides a precise sine wave output, making it ideal for AC power signal acquisition up to 250V. Perfect for Arduino, ESP32, Raspberry Pi, and other microcontroller-based systems.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eKey Features:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eHigh Precision:\u003c\/b\u003e Equipped with a ZMPT101B series micro voltage transformer for accurate voltage sensing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOptimized Output:\u003c\/b\u003e Features a high-precision onboard operational amplifier circuit for exact signal sampling, compensation, and adjustable output modes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWide Measurement Range:\u003c\/b\u003e Capable of measuring AC voltages up to 250V.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSine Wave Output:\u003c\/b\u003e Provides a clear sine wave signal output with a DC component (median).\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFlexible Power Supply:\u003c\/b\u003e Operates with a supply voltage range of 5V to 30V DC.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eEasy Integration:\u003c\/b\u003e Designed for seamless use with popular development boards like Arduino Mega, making AC voltage monitoring straightforward.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eTechnical Specifications:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eVoltage Transformer:\u003c\/b\u003e ZMPT101B Precision Micro Voltage Transformer\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMeasurement Range:\u003c\/b\u003e 0-250V AC\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOutput Signal:\u003c\/b\u003e Sine Wave (with DC median)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSupply Voltage:\u003c\/b\u003e 5V - 30V DC\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eApplication:\u003c\/b\u003e AC Power Signal Acquisition, Voltage Monitoring, DIY Electronics\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eWhy Choose the ZMPT101B?\u003c\/b\u003e Whether you're building a smart home energy monitor, a power supply tester, or any project requiring reliable AC voltage measurement, the ZMPT101B module offers the accuracy and ease of use you need. Its robust design and high-precision components ensure dependable performance for your electronic designs.\u003c\/p\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":41411853844631,"sku":"21PS001775","price":25.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/products\/zmpt101b-voltage-sensor-module-angled-overall.jpg?v=1753717257"},{"product_id":"voltage-sensor-module","title":"DC 0-25V Voltage Sensor Module (Resistive Divider) for Arduino","description":"\u003ch4 data-path-to-node=\"25\"\u003e🔋 \u003cb\u003e[DC 0-25V High-Precision Voltage Sensor Module]\u003c\/b\u003e\n\u003c\/h4\u003e\n\u003cp data-path-to-node=\"26\"\u003eThis voltage detection module is designed based on the \u003cb\u003eresistive divider principle\u003c\/b\u003e, which safely scales down an input voltage of up to 25V by a factor of 5. This allows the high voltage to be safely read by the analog input pin of microcontrollers like the Arduino. It is an ideal component for battery level monitoring, power projects, and general electronic experimentation.\u003c\/p\u003e\n\u003ch4 data-path-to-node=\"27\"\u003e✨ \u003cb\u003eKey Features\u003c\/b\u003e\n\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli data-path-to-node=\"28,0,0\"\u003e\n\u003cb\u003eDivider Design:\u003c\/b\u003e Utilizes a resistive voltage divider circuit to reduce the input voltage by a \u003cb\u003e5:1\u003c\/b\u003e ratio.\u003c\/li\u003e\n\u003cli data-path-to-node=\"28,1,0\"\u003e\n\u003cb\u003eWide Voltage Range:\u003c\/b\u003e Supports a DC voltage input range from \u003cb\u003e0V to 25V\u003c\/b\u003e.\u003c\/li\u003e\n\u003cli data-path-to-node=\"28,2,0\"\u003e\n\u003cb\u003eHigh Resolution:\u003c\/b\u003e Analog resolution of \u003cb\u003e0.00489V\u003c\/b\u003e (based on a 5V system).\u003c\/li\u003e\n\u003cli data-path-to-node=\"28,3,0\"\u003e\n\u003cb\u003eMCU Compatible:\u003c\/b\u003e Works with both 5V and 3.3V microcontroller systems (check maximum input voltage limits accordingly).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 data-path-to-node=\"29\"\u003e📋 \u003cb\u003eTechnical Specifications (Parameters)\u003c\/b\u003e\n\u003c\/h4\u003e\n\u003ctable data-path-to-node=\"30\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eValue\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eNote\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"30,1,0,0\"\u003e\u003cb\u003eVoltage Input Range\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"30,1,1,0\"\u003eDC 0V - 25V\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"30,1,2,0\"\u003eRefer to the next point for the minimum detectable voltage.\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"30,2,0,0\"\u003e\u003cb\u003eVoltage Detection Range\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"30,2,1,0\"\u003eDC 0.02445V - 25V\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"30,2,2,0\"\u003eMinimum detectable input voltage is approximately 0.02445V.\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"30,3,0,0\"\u003e\u003cb\u003eVoltage Analog Resolution\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"30,3,1,0\"\u003e0.00489V\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"30,3,2,0\"\u003eBased on a 5V system (5V \/ 1023).\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"30,4,0,0\"\u003e\u003cb\u003eVoltage Division Ratio\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"30,4,1,0\"\u003e5:1\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4 data-path-to-node=\"31\"\u003e\u003c\/h4\u003e\n\u003ch4 data-path-to-node=\"31\"\u003e🔌 \u003cb\u003eWiring Guide\u003c\/b\u003e\n\u003c\/h4\u003e\n\u003ctable data-path-to-node=\"32\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInterface\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eConnection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"32,1,0,0\"\u003e\u003cb\u003eDC Input (External Power)\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"32,1,1,0\"\u003ePositive to VCC, Negative to GND\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"32,1,2,0\"\u003eConnects to the DC voltage source (0-25V) you wish to measure.\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"32,2,0,0\"\u003e\u003cb\u003eOutput Interface (MCU)\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"32,2,1,0\"\u003e\"+\" to 5V\/3.3V (Power)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"32,2,2,0\"\u003eConnects to the VCC\/power supply pin of your Arduino\/MCU.\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"32,3,0,0\"\u003e\u003cb\u003eOutput Interface (MCU)\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"32,3,1,0\"\u003e\"-\" to GND (Ground)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"32,3,2,0\"\u003eConnects to the common ground of your Arduino\/MCU.\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"32,4,0,0\"\u003e\u003cb\u003eOutput Interface (MCU)\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"32,4,1,0\"\u003e\"S\" to Arduino AD Pin\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"32,4,2,0\"\u003eConnects to an Analog Input Pin of the Arduino (e.g., A0, A1).\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":41617058431127,"sku":"21TS001391","price":10.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/products\/dc-0.02-25v-voltage-sensor-module-arduino.jpg?v=1765008642"},{"product_id":"ad8232-ecg-module","title":"AD8232 ECG Sensor Module Kit - Heart Rate Monitor for Arduino","description":"\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAD8232 Single-Lead ECG Sensor Module Kit\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a cost-effective, fully integrated electrocardiogram (ECG) front-end solution designed for makers, students, and electronics enthusiasts. This professional-grade heart rate monitoring module extracts, amplifies, and filters biopotential signals to deliver clear, accurate cardiac waveform readings for Arduino, Raspberry Pi, and microcontroller projects.\u003cspan class=\"citation-nbsp\"\u003e\u003c\/span\u003e\u003cspan class=\"citation inline\" rel=\"nofollow noopener\" data-state=\"closed\"\u003e\u003ca rel=\"noopener\" class=\"inline\" href=\"https:\/\/components101.com\/modules\/ad8232-ecg-module\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/span\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch4 class=\"mb-2 mt-4 font-display font-semimedium text-base first:mt-0\"\u003eKey Features \u0026amp; Benefits\u003c\/h4\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003eSuperior Signal Quality\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\n\u003cstrong\u003eAdvanced Noise Filtering\u003c\/strong\u003e: Integrated two-pole high-pass filter eliminates motion artifacts and electrode half-cell potential interference\u003cspan class=\"citation-nbsp\"\u003e\u003c\/span\u003e\u003cspan class=\"citation inline\" rel=\"nofollow noopener\" data-state=\"closed\"\u003e\u003ca rel=\"noopener\" class=\"inline\" href=\"https:\/\/www.analog.com\/media\/en\/technical-documentation\/data-sheets\/ad8232.pdf\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\n\u003cstrong\u003eClean Analog Output\u003c\/strong\u003e: Three-pole low-pass filter removes high-frequency electrical noise for research-grade signal clarity\u003cspan class=\"citation-nbsp\"\u003e\u003c\/span\u003e\u003cspan class=\"citation inline\" rel=\"nofollow noopener\" data-state=\"closed\"\u003e\u003ca rel=\"noopener\" class=\"inline\" href=\"https:\/\/www.faranux.com\/product\/ad8232-ecg-measurement-heart-rate-sensor\/\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\n\u003cstrong\u003e80dB Common-Mode Rejection Ratio\u003c\/strong\u003e: Professional-level noise suppression from DC to 60Hz\u003cspan class=\"citation-nbsp\"\u003e\u003c\/span\u003e\u003cspan class=\"citation inline\" rel=\"nofollow noopener\" data-state=\"closed\"\u003e\u003ca rel=\"noopener\" class=\"inline\" href=\"https:\/\/www.analog.com\/en\/products\/ad8232.html\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003eEasy Integration \u0026amp; Compatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\n\u003cstrong\u003eUniversal Microcontroller Support\u003c\/strong\u003e: Works seamlessly with Arduino UNO, Raspberry Pi, ESP32, and 3.3V\/5V development boards\u003cspan class=\"citation-nbsp\"\u003e\u003c\/span\u003e\u003cspan class=\"citation inline\" rel=\"nofollow noopener\" data-state=\"closed\"\u003e\u003ca rel=\"noopener\" class=\"inline\" href=\"https:\/\/www.dfrobot.com\/product-1510.html\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\n\u003cstrong\u003ePlug-and-Play Design\u003c\/strong\u003e: Pre-wired 3.5mm biomedical electrode jack - no soldering required for basic setup\u003cspan class=\"citation-nbsp\"\u003e\u003c\/span\u003e\u003cspan class=\"citation inline\" rel=\"nofollow noopener\" data-state=\"closed\"\u003e\u003ca rel=\"noopener\" class=\"inline\" href=\"https:\/\/robocraze.com\/products\/ad8232-ecg-module\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\n\u003cstrong\u003eVisual Feedback\u003c\/strong\u003e: Onboard LED indicator pulses in rhythm with detected heartbeats\u003cspan class=\"citation-nbsp\"\u003e\u003c\/span\u003e\u003cspan class=\"citation inline\" rel=\"nofollow noopener\" data-state=\"closed\"\u003e\u003ca rel=\"noopener\" class=\"inline\" href=\"https:\/\/www.rajguruelectronics.com\/ProductView?tokDatRef=MTgw\u0026amp;tokenId=OTI%3D\u0026amp;product=AD8232+ECG+Sensor+Module\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003eComplete Monitoring Solution\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\n\u003cstrong\u003eComprehensive Pin Breakout\u003c\/strong\u003e: Access to SDN (shutdown), LO+\/LO- (leads-off detection), analog OUTPUT, and power pins\u003cspan class=\"citation-nbsp\"\u003e\u003c\/span\u003e\u003cspan class=\"citation inline\" rel=\"nofollow noopener\" data-state=\"closed\"\u003e\u003ca rel=\"noopener\" class=\"inline\" href=\"https:\/\/components101.com\/modules\/ad8232-ecg-module\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\n\u003cstrong\u003eFlexible Electrode Configuration\u003c\/strong\u003e: Supports both two-electrode and three-electrode setups via RA (Right Arm), LA (Left Arm), and RL (Right Leg) connections\u003cspan class=\"citation-nbsp\"\u003e\u003c\/span\u003e\u003cspan class=\"citation inline\" rel=\"nofollow noopener\" data-state=\"closed\"\u003e\u003ca rel=\"noopener\" class=\"inline\" href=\"https:\/\/www.analog.com\/en\/products\/ad8232.html\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\n\u003cstrong\u003eFast Restore Function\u003c\/strong\u003e: Automatically recovers from signal saturation when reconnecting electrodes\u003cspan class=\"citation-nbsp\"\u003e\u003c\/span\u003e\u003cspan class=\"citation inline\" rel=\"nofollow noopener\" data-state=\"closed\"\u003e\u003ca rel=\"noopener\" class=\"inline\" href=\"https:\/\/www.sparkfun.com\/sparkfun-single-lead-heart-rate-monitor-ad8232.html\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 class=\"mb-2 mt-4 font-display font-semimedium text-base first:mt-0\"\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cdiv class=\"group relative\"\u003e\n\u003cdiv class=\"w-full overflow-x-auto md:max-w-[90vw] border-subtlest ring-subtlest divide-subtlest bg-transparent\"\u003e\n\u003ctable class=\"border-subtler my-[1em] w-full table-auto border-separate border-spacing-0 border-l border-t\"\u003e\n\u003cthead class=\"bg-subtler\"\u003e\n\u003ctr\u003e\n\u003cth class=\"border-subtler p-sm break-normal border-b border-r text-left align-top\"\u003eSpecification\u003c\/th\u003e\n\u003cth class=\"border-subtler p-sm break-normal border-b border-r text-left align-top\"\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003e\u003cstrong\u003eOperating Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003e3.3V DC (2.0V - 3.5V range)\u003cspan class=\"citation-nbsp\"\u003e\u003c\/span\u003e\u003cspan class=\"citation inline\" rel=\"nofollow noopener\" data-state=\"closed\"\u003e\u003ca rel=\"noopener\" class=\"inline\" href=\"https:\/\/components101.com\/modules\/ad8232-ecg-module\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003e\u003cstrong\u003eSupply Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003e\u0026lt;10mA (170μA typical)\u003cspan class=\"citation-nbsp\"\u003e\u003c\/span\u003e\u003cspan class=\"citation inline\" rel=\"nofollow noopener\" data-state=\"closed\"\u003e\u003ca rel=\"noopener\" class=\"inline\" href=\"https:\/\/www.verical.com\/datasheet\/dfrobot-sensor-development-tools-sen0213-4804179.pdf\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003e\u003cstrong\u003eRated Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003e0°C to 70°C\u003cspan class=\"citation-nbsp\"\u003e\u003c\/span\u003e\u003cspan class=\"citation inline\" rel=\"nofollow noopener\" data-state=\"closed\" aria-label=\"AD8232 ECG Module Pinout, Features \u0026amp; Datasheet\"\u003e\u003ca rel=\"noopener\" class=\"inline\" href=\"https:\/\/components101.com\/modules\/ad8232-ecg-module\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003e-40°C to +85°C\u003cspan class=\"citation-nbsp\"\u003e\u003c\/span\u003e\u003cspan class=\"citation inline\" rel=\"nofollow noopener\" data-state=\"closed\"\u003e\u003ca rel=\"noopener\" class=\"inline\" href=\"https:\/\/components101.com\/modules\/ad8232-ecg-module\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003e\u003cstrong\u003eOutput Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003eAnalog signal (0-3.3V)\u003cspan class=\"citation-nbsp\"\u003e\u003c\/span\u003e\u003cspan class=\"citation inline\" rel=\"nofollow noopener\" data-state=\"closed\" aria-label=\"Heart Rate Monitor Sensor SKU: SEN0213 - DFRobot ...\"\u003e\u003ca rel=\"noopener\" class=\"inline\" href=\"https:\/\/www.verical.com\/datasheet\/dfrobot-sensor-development-tools-sen0213-4804179.pdf\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003e\u003cstrong\u003eModule Dimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003e35mm × 30mm × 18mm\u003cspan class=\"citation-nbsp\"\u003e\u003c\/span\u003e\u003cspan class=\"citation inline\" rel=\"nofollow noopener\" data-state=\"closed\"\u003e\u003ca rel=\"noopener\" class=\"inline\" href=\"https:\/\/www.faranux.com\/product\/ad8232-ecg-measurement-heart-rate-sensor\/\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003eApproximately 5-50 grams\u003cspan class=\"citation-nbsp\"\u003e\u003c\/span\u003e\u003cspan class=\"citation inline\" rel=\"nofollow noopener\" data-state=\"closed\"\u003e\u003ca rel=\"noopener\" class=\"inline\" href=\"https:\/\/robocraze.com\/products\/ad8232-ecg-module\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003e\u003cstrong\u003eElectrode Interface\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003e3.5mm stereo jack\u003cspan class=\"citation-nbsp\"\u003e\u003c\/span\u003e\u003cspan class=\"citation inline\" rel=\"nofollow noopener\" data-state=\"closed\"\u003e\u003ca rel=\"noopener\" class=\"inline\" href=\"https:\/\/www.faranux.com\/product\/ad8232-ecg-measurement-heart-rate-sensor\/\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bg-base border-subtler shadow-subtle pointer-coarse:opacity-100 right-xs absolute bottom-0 flex rounded-lg border opacity-0 transition-opacity group-hover:opacity-100 [\u0026amp;\u0026gt;*:not(:first-child)]:border-subtle [\u0026amp;\u0026gt;*:not(:first-child)]:border-l\"\u003e\n\u003cdiv class=\"flex\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"flex\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch4 class=\"mb-2 mt-4 font-display font-semimedium text-base first:mt-0\"\u003eApplications \u0026amp; Project Ideas\u003c\/h4\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003ePerfect for a wide range of DIY and educational projects:\u003cspan class=\"citation-nbsp\"\u003e\u003c\/span\u003e\u003cspan class=\"citation inline\" rel=\"nofollow noopener\" data-state=\"closed\"\u003e\u003ca rel=\"noopener\" class=\"inline\" href=\"https:\/\/www.dfrobot.com\/product-1510.html\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\n\u003cstrong\u003eHealth \u0026amp; Fitness Monitoring\u003c\/strong\u003e: Build custom heart rate monitors for sports training and wellness tracking\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\n\u003cstrong\u003eEducational Labs\u003c\/strong\u003e: Teach biomedical engineering principles and signal processing concepts\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\n\u003cstrong\u003eWearable Technology\u003c\/strong\u003e: Create portable ECG devices and smart health monitoring wearables\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\n\u003cstrong\u003eArduino Projects\u003c\/strong\u003e: Integrate with IoT systems for remote patient monitoring prototypes\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\n\u003cstrong\u003eResearch \u0026amp; Development\u003c\/strong\u003e: Develop biopotential signal acquisition systems for academic research\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\n\u003cstrong\u003eGaming \u0026amp; Interactive Art\u003c\/strong\u003e: Use heart rate data for biofeedback gaming experiences\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 class=\"mb-2 mt-4 font-display font-semimedium text-base first:mt-0\"\u003eWhat's Included\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e1× AD8232 ECG Sensor Module\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e1× Electrode Cable with 3.5mm connector (100cm length)\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e3× Disposable ECG Electrode Pads (RA\/LA\/RL color-coded)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":41617159520407,"sku":"","price":58.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/products\/AD8232-ECG-Sensor-Module-Kit-Cable-Electrodes.jpg?v=1776499796"},{"product_id":"5-types-photoresistor-kit-50pcs","title":"50pc Photoresistor LDR Kit for Arduino - GL5506 to GL5539","description":"\u003cp\u003eElevate your electronics projects with our comprehensive 50-piece Photoresistor LDR Kit! This DIY-friendly assortment includes 10 pieces each of five popular light-dependent resistors: GL5506, GL5516, GL5528, GL5537, and GL5539.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eKey Features:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eVersatile Collection:\u003c\/b\u003e Get 5 distinct types of photoresistors, perfect for a wide range of light-sensing applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHigh Quality:\u003c\/b\u003e Each LDR is designed for reliable and accurate light detection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eArduino Compatible:\u003c\/b\u003e Seamlessly integrate these photoresistors into your Arduino, Raspberry Pi, or other microcontroller-based projects.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDIY Essential:\u003c\/b\u003e Ideal for hobbyists, students, and engineers working on light-activated circuits, automatic lighting, and more.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eBulk Value:\u003c\/b\u003e A convenient 50-piece kit ensures you have the right component on hand for multiple projects.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eWhat's Included:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e10 x GL5506 Photoresistors\u003c\/li\u003e\n\u003cli\u003e10 x GL5516 Photoresistors\u003c\/li\u003e\n\u003cli\u003e10 x GL5528 Photoresistors\u003c\/li\u003e\n\u003cli\u003e10 x GL5537 Photoresistors\u003c\/li\u003e\n\u003cli\u003e10 x GL5539 Photoresistors\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eUnleash your creativity and build smart, responsive electronics with this essential photoresistor kit!\u003c\/p\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":41962661216407,"sku":"","price":20.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/products\/photoresistor-ldr-assortment-kit-bag.png?v=1754577694"},{"product_id":"dht22-digital-temperature-and-humidity-sensor","title":"DHT22 AM2302 Digital Temperature \u0026 Humidity Sensor Module for Arduino","description":"\u003cp data-start=\"437\" data-end=\"824\"\u003eThe \u003cstrong data-start=\"441\" data-end=\"504\"\u003eDHT22 \/ AM2302 Digital Temperature \u0026amp; Humidity Sensor Module\u003c\/strong\u003e is a high-accuracy environmental sensing solution designed for Arduino, Raspberry Pi, ESP32, smart home systems, and DIY electronics. Compared to the DHT11, it provides significantly better precision and a wider measurement range, making it ideal for weather monitoring, indoor climate control, and automation projects.\u003c\/p\u003e\n\u003chr data-start=\"826\" data-end=\"829\"\u003e\n\u003ch4 data-start=\"831\" data-end=\"853\"\u003e\u003cstrong data-start=\"835\" data-end=\"853\"\u003e✨ Key Features\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli data-start=\"856\" data-end=\"934\"\u003e\n\u003cstrong data-start=\"856\" data-end=\"874\"\u003eHigh Accuracy:\u003c\/strong\u003e ±2% RH humidity accuracy and ±0.5°C temperature accuracy.\u003c\/li\u003e\n\u003cli data-start=\"937\" data-end=\"966\"\u003e\n\u003cstrong data-start=\"937\" data-end=\"964\"\u003eWide Measurement Range:\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli data-start=\"971\" data-end=\"1000\"\u003eTemperature: −40°C to +80°C\u003c\/li\u003e\n\u003cli data-start=\"1005\" data-end=\"1031\"\u003eHumidity: 0% to 99.9% RH\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1034\" data-end=\"1113\"\u003e\n\u003cstrong data-start=\"1034\" data-end=\"1055\"\u003eSimple Interface:\u003c\/strong\u003e Single-bus output, easy to connect to microcontrollers.\u003c\/li\u003e\n\u003cli data-start=\"1116\" data-end=\"1189\"\u003e\n\u003cstrong data-start=\"1116\" data-end=\"1137\"\u003eUpgrade Friendly:\u003c\/strong\u003e Fully compatible with DHT11 wiring and libraries.\u003c\/li\u003e\n\u003cli data-start=\"1192\" data-end=\"1281\"\u003e\n\u003cstrong data-start=\"1192\" data-end=\"1217\"\u003eFlexible Power Input:\u003c\/strong\u003e Operates on 3V–5.5V DC, suitable for most development boards.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1283\" data-end=\"1286\"\u003e\n\u003ch4 data-start=\"1288\" data-end=\"1313\"\u003e\u003cstrong data-start=\"1292\" data-end=\"1313\"\u003e📊 Specifications\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cdiv class=\"_tableContainer_1rjym_1\"\u003e\n\u003cdiv class=\"group _tableWrapper_1rjym_13 flex w-fit flex-col-reverse\" tabindex=\"-1\"\u003e\n\u003ctable data-start=\"1314\" data-end=\"1709\" class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead data-start=\"1314\" data-end=\"1332\"\u003e\n\u003ctr data-start=\"1314\" data-end=\"1332\"\u003e\n\u003cth data-start=\"1314\" data-end=\"1321\" data-col-size=\"sm\"\u003eItem\u003c\/th\u003e\n\u003cth data-start=\"1321\" data-end=\"1332\" data-col-size=\"sm\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody data-start=\"1352\" data-end=\"1709\"\u003e\n\u003ctr data-start=\"1352\" data-end=\"1385\"\u003e\n\u003ctd data-start=\"1352\" data-end=\"1360\" data-col-size=\"sm\"\u003eModel\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"1360\" data-end=\"1385\"\u003eDHT22 \/ AM2302 Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1386\" data-end=\"1441\"\u003e\n\u003ctd data-start=\"1386\" data-end=\"1400\" data-col-size=\"sm\"\u003eSensor Type\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"1400\" data-end=\"1441\"\u003eDigital Temperature \u0026amp; Humidity Sensor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1442\" data-end=\"1476\"\u003e\n\u003ctd data-start=\"1442\" data-end=\"1460\" data-col-size=\"sm\"\u003eWorking Voltage\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"1460\" data-end=\"1476\"\u003eDC 3V – 5.5V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1477\" data-end=\"1511\"\u003e\n\u003ctd data-start=\"1477\" data-end=\"1494\" data-col-size=\"sm\"\u003eHumidity Range\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"1494\" data-end=\"1511\"\u003e0% – 99.9% RH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1512\" data-end=\"1542\"\u003e\n\u003ctd data-start=\"1512\" data-end=\"1532\" data-col-size=\"sm\"\u003eHumidity Accuracy\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"1532\" data-end=\"1542\"\u003e±2% RH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1543\" data-end=\"1580\"\u003e\n\u003ctd data-start=\"1543\" data-end=\"1563\" data-col-size=\"sm\"\u003eTemperature Range\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"1563\" data-end=\"1580\"\u003e−40°C – +80°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1581\" data-end=\"1614\"\u003e\n\u003ctd data-start=\"1581\" data-end=\"1604\" data-col-size=\"sm\"\u003eTemperature Accuracy\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"1604\" data-end=\"1614\"\u003e±0.5°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1615\" data-end=\"1638\"\u003e\n\u003ctd data-start=\"1615\" data-end=\"1628\" data-col-size=\"sm\"\u003eResolution\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"1628\" data-end=\"1638\"\u003e16-bit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1639\" data-end=\"1670\"\u003e\n\u003ctd data-start=\"1639\" data-end=\"1657\" data-col-size=\"sm\"\u003eSampling Period\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"1657\" data-end=\"1670\"\u003e2 seconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1671\" data-end=\"1709\"\u003e\n\u003ctd data-start=\"1671\" data-end=\"1680\" data-col-size=\"sm\"\u003eOutput\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"1680\" data-end=\"1709\"\u003eSingle-Bus Digital Output\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003chr data-start=\"1711\" data-end=\"1714\"\u003e\n\u003ch4 data-start=\"1716\" data-end=\"1739\"\u003e\u003cstrong data-start=\"1720\" data-end=\"1739\"\u003e🔌 Wiring Guide\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cdiv class=\"_tableContainer_1rjym_1\"\u003e\n\u003cdiv class=\"group _tableWrapper_1rjym_13 flex w-fit flex-col-reverse\" tabindex=\"-1\"\u003e\n\u003ctable data-start=\"1740\" data-end=\"1940\" class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead data-start=\"1740\" data-end=\"1772\"\u003e\n\u003ctr data-start=\"1740\" data-end=\"1772\"\u003e\n\u003cth data-start=\"1740\" data-end=\"1746\" data-col-size=\"sm\"\u003ePin\u003c\/th\u003e\n\u003cth data-start=\"1746\" data-end=\"1757\" data-col-size=\"sm\"\u003eFunction\u003c\/th\u003e\n\u003cth data-start=\"1757\" data-end=\"1772\" data-col-size=\"sm\"\u003eDescription\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody data-start=\"1806\" data-end=\"1940\"\u003e\n\u003ctr data-start=\"1806\" data-end=\"1840\"\u003e\n\u003ctd data-start=\"1806\" data-end=\"1812\" data-col-size=\"sm\"\u003eVCC\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"1812\" data-end=\"1826\"\u003ePower Input\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"1826\" data-end=\"1840\"\u003e3.3V or 5V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1841\" data-end=\"1877\"\u003e\n\u003ctd data-start=\"1841\" data-end=\"1847\" data-col-size=\"sm\"\u003eGND\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"1847\" data-end=\"1856\"\u003eGround\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"1856\" data-end=\"1877\"\u003eNegative terminal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1878\" data-end=\"1940\"\u003e\n\u003ctd data-start=\"1878\" data-end=\"1891\" data-col-size=\"sm\"\u003eDATA \/ OUT\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"1891\" data-end=\"1905\"\u003eData Signal\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"1905\" data-end=\"1940\"\u003eConnect to microcontroller GPIO\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":42123498258583,"sku":"21PS001538","price":35.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/products\/dht22-am2302-sensor-module-with-jumper-wires.jpg?v=1764663667"},{"product_id":"gy-53-laser-sensor-module","title":"GY-53 VL53L0X Laser ToF Distance Sensor Module","description":"\u003ch4\u003eKey Features \u003c\/h4\u003e\n\u003cp\u003e\u003cspan class=\"citation-70\"\u003eThe \u003c\/span\u003e\u003cb\u003e\u003cspan class=\"citation-70\"\u003eGY-53 VL53L0X Laser ToF (Time-of-Flight) Sensor Module\u003c\/span\u003e\u003c\/b\u003e\u003cspan class=\"citation-70 citation-end-70\"\u003e offers a simple and efficient solution for accurate distance measurement.\u003csup class=\"superscript\" data-turn-source-index=\"1\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e \u003cspan class=\"citation-69\"\u003ePowered by a \u003c\/span\u003e\u003cb\u003e\u003cspan class=\"citation-69\"\u003eVL53L0X chip\u003c\/span\u003e\u003c\/b\u003e\u003cspan class=\"citation-69\"\u003e coupled with an \u003c\/span\u003e\u003cb\u003e\u003cspan class=\"citation-69\"\u003eSTM32 microcontroller\u003c\/span\u003e\u003c\/b\u003e\u003cspan class=\"citation-69 citation-end-69\"\u003e, this module streamlines your projects by providing direct distance data output, eliminating the need for complex communication protocols or intricate algorithms.\u003c\/span\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003ch3\u003e\n\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\n\u003c\/h3\u003e\n\u003ch3\u003e\n\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\n\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan class=\"citation-68\"\u003e\u003c\/span\u003e\u003cb\u003e\u003cspan class=\"citation-68\"\u003eEasy Integration:\u003c\/span\u003e\u003c\/b\u003e\u003cspan class=\"citation-68 citation-end-68\"\u003e Designed for hassle-free connection with various MCUs (STM32, Arduino, 8051) and computers.\u003c\/span\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMultiple Output Options:\u003c\/b\u003e\u003cspan class=\"citation-67\"\u003e Supports \u003c\/span\u003e\u003cb\u003e\u003cspan class=\"citation-67\"\u003eserial output\u003c\/span\u003e\u003c\/b\u003e\u003cspan class=\"citation-67\"\u003e, \u003c\/span\u003e\u003cb\u003e\u003cspan class=\"citation-67\"\u003ePWM output\u003c\/span\u003e\u003c\/b\u003e\u003cspan class=\"citation-67\"\u003e, and direct \u003c\/span\u003e\u003cb\u003e\u003cspan class=\"citation-67\"\u003eI2C communication\u003c\/span\u003e\u003c\/b\u003e\u003cspan class=\"citation-67 citation-end-67\"\u003e from the VL53L0X chip.\u003c\/span\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"citation-66\"\u003e\u003c\/span\u003e\u003cb\u003e\u003cspan class=\"citation-66\"\u003eWide Power Compatibility:\u003c\/span\u003e\u003c\/b\u003e\u003cspan class=\"citation-66\"\u003e Operates on a versatile \u003c\/span\u003e\u003cb\u003e\u003cspan class=\"citation-66\"\u003e3-5V\u003c\/span\u003e\u003c\/b\u003e\u003cspan class=\"citation-66 citation-end-66\"\u003e power supply (featuring an internal low-voltage differential regulator).\u003c\/span\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"citation-65\"\u003e\u003c\/span\u003e\u003cb\u003e\u003cspan class=\"citation-65\"\u003eCompact Design:\u003c\/span\u003e\u003c\/b\u003e\u003cspan class=\"citation-65\"\u003e With dimensions of just \u003c\/span\u003e\u003cb\u003e\u003cspan class=\"citation-65\"\u003e25mm x 15.6mm\u003c\/span\u003e\u003c\/b\u003e\u003cspan class=\"citation-65 citation-end-65\"\u003e (including mounting holes), it's ideal for space-constrained applications.\u003c\/span\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"citation-64\"\u003e\u003c\/span\u003e\u003cb\u003e\u003cspan class=\"citation-64\"\u003eRobust Range:\u003c\/span\u003e\u003c\/b\u003e\u003cspan class=\"citation-64\"\u003e Achieves a measurement range of up to \u003c\/span\u003e\u003cb\u003e\u003cspan class=\"citation-64\"\u003e2 meters\u003c\/span\u003e\u003c\/b\u003e\u003cspan class=\"citation-64 citation-end-64\"\u003e in low-light, long-distance mode.\u003c\/span\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePC Software Included:\u003c\/b\u003e\u003cspan class=\"citation-63 citation-end-63\"\u003e Comes with dedicated PC display distance software for easy data visualization via a USB to TTL module connection.\u003c\/span\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"citation-62\"\u003e\u003c\/span\u003e\u003cb\u003e\u003cspan class=\"citation-62\"\u003eDefault Configuration:\u003c\/span\u003e\u003c\/b\u003e\u003cspan class=\"citation-62\"\u003e Pre-configured with a \u003c\/span\u003e\u003cb\u003e\u003cspan class=\"citation-62\"\u003e9600 baud rate\u003c\/span\u003e\u003c\/b\u003e\u003cspan class=\"citation-62 citation-end-62\"\u003e for serial communication, automatic output, and high-precision mode.\u003c\/span\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch4\u003eWhat's Included\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan class=\"citation-61 citation-end-61\"\u003eGY-53 VL53L0X Laser ToF Sensor Module (no welding by default).\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"source-inline-chip-container ng-star-inserted\"\u003e\n\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch4\u003eImportant Note\u003c\/h4\u003e\n\u003cp\u003e\u003cspan class=\"citation-60 citation-end-60\"\u003eWhile highly accurate, the sensor's maximum measurement range can be influenced by strong external light conditions.\u003csup class=\"superscript\" data-turn-source-index=\"11\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e However, the measurement accuracy itself remains unaffected.\u003c\/p\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":42223336685719,"sku":"21PS001396","price":35.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/products\/GY-53-VL53L0X-laser-sensor-module-angle.jpg?v=1755137075"},{"product_id":"30a-hall-current-sensor-module-acs712-module-for-arduino","title":"ACS712 30A Hall Current Sensor Module for Arduino","description":"\u003cp\u003eAccurately measure AC or DC current up to 30 Amps with the \u003cb\u003eACS712 Hall Current Sensor Module\u003c\/b\u003e. This compact and reliable module is perfect for a wide range of Arduino and other microcontroller-based projects, including power monitoring, motor control, and battery management systems.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eKey Features:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eHigh Precision Sensor:\u003c\/b\u003e Utilizes the reliable \u003cb\u003eACS712ELC current sensor chip\u003c\/b\u003e, specifically designed for precise current detection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWide Current Range:\u003c\/b\u003e Measures both AC and DC currents up to \u003cb\u003e±30 Amps\u003c\/b\u003e, making it versatile for various applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAnalog Output:\u003c\/b\u003e Provides a linear analog output of \u003cb\u003e100 mV\/A\u003c\/b\u003e, allowing easy integration with analog-to-digital converters (ADCs) on microcontrollers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eEasy Calibration:\u003c\/b\u003e When no current flows through the module, the output voltage is VCC \/ 2, providing a clear zero-current reference point for straightforward calibration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCompact Design:\u003c\/b\u003e With a PCB board size of just \u003cb\u003e31mm x 13mm\u003c\/b\u003e, it's ideal for projects with limited space.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSimple Power Supply:\u003c\/b\u003e Operates on a standard \u003cb\u003e5V power supply\u003c\/b\u003e, indicated by an onboard power light for easy setup confirmation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePower consumption monitoring\u003c\/li\u003e\n\u003cli\u003eOvercurrent protection circuits\u003c\/li\u003e\n\u003cli\u003eMotor current sensing\u003c\/li\u003e\n\u003cli\u003eBattery charge\/discharge monitoring\u003c\/li\u003e\n\u003cli\u003eDIY electronics projects\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":42732158681239,"sku":"21PS001321","price":25.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/products\/ACS712-30A-Hall-Current-Sensor-Module-Arduino-Front.jpg?v=1754377546"},{"product_id":"5a-micro-current-transformer-module-for-arduino","title":"5A Micro Current Transformer Sensor Module for Arduino (Active Output)","description":"\u003cp data-start=\"338\" data-end=\"667\"\u003eA compact and high-precision \u003cstrong data-start=\"367\" data-end=\"410\"\u003e5A AC Current Transformer Sensor Module\u003c\/strong\u003e designed for Arduino, IoT energy monitoring, and AC load measurement projects.\u003cbr data-start=\"489\" data-end=\"492\"\u003eFeaturing an onboard micro current transformer and precision op-amp circuitry, this module provides clean, stable, and adjustable analog output for accurate current detection.\u003c\/p\u003e\n\u003ch4 data-start=\"669\" data-end=\"689\"\u003e\u003cstrong data-start=\"673\" data-end=\"689\"\u003eKey Features\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli data-start=\"692\" data-end=\"799\"\u003e\n\u003cstrong data-start=\"692\" data-end=\"739\"\u003eOnboard precision micro current transformer\u003c\/strong\u003e\u003cbr data-start=\"739\" data-end=\"742\"\u003eEnsures reliable AC current sampling within a 5A range.\u003c\/li\u003e\n\u003cli data-start=\"802\" data-end=\"922\"\u003e\n\u003cstrong data-start=\"802\" data-end=\"846\"\u003eHigh-accuracy op-amp signal conditioning\u003c\/strong\u003e\u003cbr data-start=\"846\" data-end=\"849\"\u003eBuilt-in amplification and compensation deliver a stable analog output.\u003c\/li\u003e\n\u003cli data-start=\"925\" data-end=\"1026\"\u003e\n\u003cstrong data-start=\"925\" data-end=\"953\"\u003eAdjustable analog output\u003c\/strong\u003e\u003cbr data-start=\"953\" data-end=\"956\"\u003eOutput can be fine-tuned to match your ADC or microcontroller needs.\u003c\/li\u003e\n\u003cli data-start=\"1029\" data-end=\"1133\"\u003e\n\u003cstrong data-start=\"1029\" data-end=\"1051\"\u003eCompact PCB design\u003c\/strong\u003e\u003cbr data-start=\"1051\" data-end=\"1054\"\u003ePCB size: \u003cstrong data-start=\"1066\" data-end=\"1083\"\u003e38mm × 18.5mm\u003c\/strong\u003e, ideal for embedded and DIY electronics projects.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 data-start=\"1135\" data-end=\"1155\"\u003e\u003cstrong data-start=\"1139\" data-end=\"1155\"\u003eApplications\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli data-start=\"1158\" data-end=\"1213\"\u003eArduino \/ ESP32 \/ Raspberry Pi AC current measurement\u003c\/li\u003e\n\u003cli data-start=\"1216\" data-end=\"1246\"\u003eSmart home energy monitoring\u003c\/li\u003e\n\u003cli data-start=\"1249\" data-end=\"1274\"\u003eAC motor load detection\u003c\/li\u003e\n\u003cli data-start=\"1277\" data-end=\"1310\"\u003eOver-current protection systems\u003c\/li\u003e\n\u003cli data-start=\"1313\" data-end=\"1342\"\u003eIndustrial automation sensing\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":42732180865175,"sku":"21PS001539","price":25.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/products\/5a-range-ac-current-sensor-module-front.jpg?v=1764398765"},{"product_id":"dht11-temperature-and-humidity-senor-module","title":"DHT11 Temperature and Humidity Sensor Module for Arduino","description":"\u003cp data-start=\"414\" data-end=\"673\"\u003eThe DHT11 Temperature and Humidity Sensor Module is a reliable, low-cost digital sensor designed to measure ambient humidity and temperature. It is ideal for Arduino, Raspberry Pi, smart home DIY, environmental monitoring systems, and STEM education projects.\u003c\/p\u003e\n\u003cp data-start=\"675\" data-end=\"837\"\u003eFeaturing stable performance, built-in digital output, and a compact size with mounting holes, this module is easy to integrate into various electronics projects.\u003c\/p\u003e\n\u003chr data-start=\"839\" data-end=\"842\"\u003e\n\u003ch4 data-start=\"844\" data-end=\"864\"\u003e\u003cstrong data-start=\"848\" data-end=\"864\"\u003eKey Features\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli data-start=\"867\" data-end=\"916\"\u003eMeasures both temperature and relative humidity\u003c\/li\u003e\n\u003cli data-start=\"919\" data-end=\"967\"\u003eDigital output signal for easy MCU integration\u003c\/li\u003e\n\u003cli data-start=\"970\" data-end=\"1013\"\u003eHigh reliability with long-term stability\u003c\/li\u003e\n\u003cli data-start=\"1016\" data-end=\"1078\"\u003eCompact design with 3mm mounting hole for quick installation\u003c\/li\u003e\n\u003cli data-start=\"1081\" data-end=\"1149\"\u003eIdeal for Arduino, Raspberry Pi and other microcontroller projects\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1151\" data-end=\"1154\"\u003e\n\u003ch4 data-start=\"1156\" data-end=\"1178\"\u003e\u003cstrong data-start=\"1160\" data-end=\"1178\"\u003eSpecifications\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cdiv class=\"_tableContainer_1rjym_1\"\u003e\n\u003cdiv class=\"group _tableWrapper_1rjym_13 flex w-fit flex-col-reverse\" tabindex=\"-1\"\u003e\n\u003ctable data-start=\"1179\" data-end=\"1476\" class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead data-start=\"1179\" data-end=\"1197\"\u003e\n\u003ctr data-start=\"1179\" data-end=\"1197\"\u003e\n\u003cth data-start=\"1179\" data-end=\"1186\" data-col-size=\"sm\"\u003eItem\u003c\/th\u003e\n\u003cth data-start=\"1186\" data-end=\"1197\" data-col-size=\"sm\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody data-start=\"1217\" data-end=\"1476\"\u003e\n\u003ctr data-start=\"1217\" data-end=\"1241\"\u003e\n\u003ctd data-start=\"1217\" data-end=\"1232\" data-col-size=\"sm\"\u003eSensor Model\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"1232\" data-end=\"1241\"\u003eDHT11\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1242\" data-end=\"1275\"\u003e\n\u003ctd data-start=\"1242\" data-end=\"1259\" data-col-size=\"sm\"\u003eHumidity Range\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"1259\" data-end=\"1275\"\u003e20% – 90% RH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1276\" data-end=\"1306\"\u003e\n\u003ctd data-start=\"1276\" data-end=\"1296\" data-col-size=\"sm\"\u003eHumidity Accuracy\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"1296\" data-end=\"1306\"\u003e±5% RH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1307\" data-end=\"1341\"\u003e\n\u003ctd data-start=\"1307\" data-end=\"1327\" data-col-size=\"sm\"\u003eTemperature Range\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"1327\" data-end=\"1341\"\u003e0°C – 50°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1342\" data-end=\"1373\"\u003e\n\u003ctd data-start=\"1342\" data-end=\"1365\" data-col-size=\"sm\"\u003eTemperature Accuracy\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"1365\" data-end=\"1373\"\u003e±2°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1374\" data-end=\"1410\"\u003e\n\u003ctd data-start=\"1374\" data-end=\"1394\" data-col-size=\"sm\"\u003eOperating Voltage\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"1394\" data-end=\"1410\"\u003e3.3V \/ 5V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1411\" data-end=\"1443\"\u003e\n\u003ctd data-start=\"1411\" data-end=\"1425\" data-col-size=\"sm\"\u003eOutput Type\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"1425\" data-end=\"1443\"\u003eDigital signal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1444\" data-end=\"1476\"\u003e\n\u003ctd data-start=\"1444\" data-end=\"1458\" data-col-size=\"sm\"\u003eModule Size\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"1458\" data-end=\"1476\"\u003e28 × 12 × 8 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003chr data-start=\"1478\" data-end=\"1481\"\u003e\n\u003ch4 data-start=\"1483\" data-end=\"1503\"\u003e\u003cstrong data-start=\"1487\" data-end=\"1503\"\u003eWiring Guide\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli data-start=\"1506\" data-end=\"1533\"\u003e\n\u003cstrong data-start=\"1506\" data-end=\"1513\"\u003eVCC\u003c\/strong\u003e → 3.3V \/ 5V power\u003c\/li\u003e\n\u003cli data-start=\"1536\" data-end=\"1554\"\u003e\n\u003cstrong data-start=\"1536\" data-end=\"1543\"\u003eGND\u003c\/strong\u003e → Ground\u003c\/li\u003e\n\u003cli data-start=\"1557\" data-end=\"1624\"\u003e\n\u003cstrong data-start=\"1557\" data-end=\"1565\"\u003eDATA\u003c\/strong\u003e → Microcontroller I\/O pin (with internal pull-up resistor)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":42733760839831,"sku":"21PS001075","price":20.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/files\/dht11-sensor-module-side-view.jpg?v=1764398152"},{"product_id":"laser-sensor-receiver-module-for-arduino","title":"Laser Sensor Receiver Module (Non-Modulated) for Arduino DIY Projects","description":"\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eThis Laser Sensor Receiver Module is specially designed for Arduino and microcontroller-based DIY projects. It features a non-modulated laser receiver tube that outputs a digital signal directly — HIGH (5V) when a laser is detected and LOW (0V) when no laser is present.\u003c\/p\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eCompact and easy to use, this sensor is ideal for beam detection, light alarms, and counting systems. Perfect for makers, students, and electronics hobbyists.\u003c\/p\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e✨\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eDesigned for Arduino DIY projects — simple wiring and programming.\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eUses a highly sensitive non‑modulated receiver head.\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e5V DC working voltage with direct digital output.\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eCompact PCB (approx. 1.5 × 1.9 cm) for easy integration.\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003ePerfect for laser alarm or counting applications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e⚙️\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"group relative\"\u003e\n\u003cdiv class=\"w-full overflow-x-auto md:max-w-[90vw] border-subtlest ring-subtlest divide-subtlest bg-transparent\"\u003e\n\u003ctable class=\"border-subtler my-[1em] w-full table-auto border-separate border-spacing-0 border-l border-t\"\u003e\n\u003cthead class=\"bg-subtler\"\u003e\n\u003ctr\u003e\n\u003cth class=\"border-subtler p-sm break-normal border-b border-r text-left align-top\"\u003eSpecification\u003c\/th\u003e\n\u003cth class=\"border-subtler p-sm break-normal border-b border-r text-left align-top\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003eWorking Voltage\u003c\/td\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003e5V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003ePCB Size\u003c\/td\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003eApprox. 1.5 cm × 1.9 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003eOutput Type\u003c\/td\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003eDigital\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003eLaser Reception\u003c\/td\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003eNon‑Modulated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003eOutput Signal\u003c\/td\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003eLaser Detected = HIGH \/ No Laser = LOW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bg-base border-subtler shadow-subtle pointer-coarse:opacity-100 right-xs absolute bottom-0 flex rounded-lg border opacity-0 transition-opacity group-hover:opacity-100 [\u0026amp;\u0026gt;*:not(:first-child)]:border-subtle [\u0026amp;\u0026gt;*:not(:first-child)]:border-l\"\u003e\n\u003cdiv class=\"flex\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"flex\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e⚠️\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eUsage Note\u003c\/strong\u003e\u003cbr\u003eThis non-modulated receiver is sensitive to ambient light. For stable performance, operate indoors away from sunlight or strong light sources.\u003c\/p\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e📦\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ePackage Includes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e1x Laser Sensor Receiver Module\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":42828354453655,"sku":"21PS001415","price":15.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/products\/laser-sensor-receiver-kit-with-led-indicator.jpg?v=1764393563"},{"product_id":"raindrops-detection-sensor-module-for-arduino","title":"Raindrop Detection Sensor Module MH‑RD 3.3–5V for Arduino","description":"\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eThe MH‑RD Raindrop Detection Sensor Module is a simple rain and water‑drop detector consisting of a nickel‑plated FR‑04 rain board and an LM393 comparator control board. It provides both digital (DO) and analog (AO) outputs, making it ideal for weather monitoring, smart irrigation, and DIY Arduino or Raspberry Pi projects.\u003cspan class=\"citation-nbsp\"\u003e\u003c\/span\u003e\u003cspan class=\"citation inline\" rel=\"nofollow noopener\" data-state=\"closed\"\u003e\u003ca rel=\"noopener\" class=\"inline\" href=\"https:\/\/www.oceanlabz.in\/interface-rain-drop-sensor-with-arduino\/\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4 class=\"mb-2 mt-4 font-display font-semimedium text-base first:mt-0\"\u003eKey features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eLarge 54 × 40 mm rain board made from double‑sided FR‑04 with nickel‑plated surface for excellent conductivity, oxidation resistance, and long service life.\u003cspan class=\"citation-nbsp\"\u003e\u003c\/span\u003e\u003cspan class=\"citation inline\" rel=\"nofollow noopener\" data-state=\"closed\"\u003e\u003ca rel=\"noopener\" class=\"inline\" href=\"https:\/\/kitsguru.com\/products\/raindrops-detection-sensor-module\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eSeparate 31 × 14.2 mm control PCB with LM393 wide‑voltage comparator, power\/output LEDs, and sensitivity adjustment potentiometer.\u003cspan class=\"citation-nbsp\"\u003e\u003c\/span\u003e\u003cspan class=\"citation inline\" rel=\"nofollow noopener\" data-state=\"closed\"\u003e\u003ca rel=\"noopener\" class=\"inline\" href=\"https:\/\/easyelecmodule.com\/a-step-by-step-raindrop-sensor-project-with-real-time-monitoring\/\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eOperating voltage 3.3–5 V DC with strong output drive capability over 15 mA, compatible with most 3.3 V and 5 V microcontrollers.\u003cspan class=\"citation-nbsp\"\u003e\u003c\/span\u003e\u003cspan class=\"citation inline\" rel=\"nofollow noopener\" data-state=\"closed\"\u003e\u003ca rel=\"noopener\" class=\"inline\" href=\"https:\/\/www.faranux.com\/product\/raindrops-detection-sensor-module\/\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eDual outputs: digital DO for simple rain\/no‑rain detection and analog AO voltage proportional to the amount of water on the sensor surface.\u003cspan class=\"citation-nbsp\"\u003e\u003c\/span\u003e\u003cspan class=\"citation inline\" rel=\"nofollow noopener\" data-state=\"closed\"\u003e\u003ca rel=\"noopener\" class=\"inline\" href=\"https:\/\/www.studiopieters.nl\/mh-rd\/\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eMounting holes on the rain board and control board for easy installation in weatherproof enclosures or project boxes.\u003cspan class=\"citation-nbsp\"\u003e\u003c\/span\u003e\u003cspan class=\"citation inline\" rel=\"nofollow noopener\" data-state=\"closed\"\u003e\u003ca rel=\"noopener\" class=\"inline\" href=\"https:\/\/kitsguru.com\/products\/raindrops-detection-sensor-module\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 class=\"mb-2 mt-4 font-display font-semimedium text-base first:mt-0\"\u003eSpecifications\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eRain board size: approx. 54 mm (L) × 40 mm (W).\u003cspan class=\"citation-nbsp\"\u003e\u003c\/span\u003e\u003cspan class=\"citation inline\" rel=\"nofollow noopener\" data-state=\"closed\"\u003e\u003ca rel=\"noopener\" class=\"inline\" href=\"https:\/\/robocraze.com\/products\/rain-drop-sensor-module\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eControl board size: approx. 31 mm (L) × 14.2 mm (W).\u003cspan class=\"citation-nbsp\"\u003e\u003c\/span\u003e\u003cspan class=\"citation inline\" rel=\"nofollow noopener\" data-state=\"closed\"\u003e\u003ca rel=\"noopener\" class=\"inline\" href=\"https:\/\/shop.linkserve.mv\/products\/raindrop-detection-sensor-module-3-3v-5v-mh-rd\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eWorking voltage: DC 3.3–5 V.\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eOutputs: DO (TTL digital switch output), AO (analog voltage output).\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eComparator IC: LM393 wide‑voltage comparator.\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eOutput current: \u0026gt; 15 mA.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 class=\"mb-2 mt-4 font-display font-semimedium text-base first:mt-0\"\u003ePinout and wiring\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eVCC: Connect to 3.3–5 V power supply.\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eGND: Connect to power ground.\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eDO: TTL digital output, HIGH when dry and LOW when rain is detected (threshold set via potentiometer).\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eAO: Analog output, connect to MCU ADC pin to measure rainfall intensity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 class=\"mb-2 mt-4 font-display font-semimedium text-base first:mt-0\"\u003ePackage includes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e1 × Raindrop sensor board (54 × 40 mm).\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e1 × MH‑RD control module PCB (31 × 14.2 mm).\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e1 × 2‑pin Dupont cable set for connection.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":42866277187735,"sku":"","price":15.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/products\/raindrop-sensor-module-kit.jpg?v=1764319514"},{"product_id":"ina219-dc-current-monitor-module","title":"INA219 I2C Bi-directional DC Current and Power Sensor Module 3‑5V","description":"\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eINA219 DC Current and Power Monitor Module\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a high‑precision, bi‑directional current sensing board with an I2C digital interface. Built around Texas Instruments’ INA219 chip, this module allows accurate monitoring of shunt voltage, bus voltage, current, and power in real time.\u003c\/p\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003ePerfect for applications such as servers, laptops, battery management, IoT devices, and power supply systems, it supports both low and high voltages with a sensing range up to\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e26V\u003c\/strong\u003e. Thanks to its\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e12‑bit resolution ADC\u003c\/strong\u003e, it delivers precise readings while minimizing voltage drop and power loss.\u003c\/p\u003e\n\u003ch4 class=\"mb-2 mt-4 font-display font-semimedium text-base first:mt-0\"\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eOperating voltage:\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e3.0V – 5.5V\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(single supply)\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eBus voltage sensing range:\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e0V – 26V\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eMeasures voltage, current, and power directly\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eProgrammable gain amplifier and calibration register\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eDirect output in\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eamperes\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eand\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ewatts\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eI2C address adjustable (up to 16 combinations)\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eCommunication speed: Fast mode (400 kHz), High‑speed mode (2.56 MHz)\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eProgrammable averaging (up to 128 samples) for noise reduction\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eTypical quiescent current:\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e0.7 mA\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 class=\"mb-2 mt-4 font-display font-semimedium text-base first:mt-0\"\u003eIdeal For\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eIoT projects\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003ePower monitoring systems\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eBattery charging circuits\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eEmbedded development boards (Arduino, Raspberry Pi, ESP32)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 class=\"mb-2 mt-4 font-display font-semimedium text-base first:mt-0\"\u003eProduct Specifications\u003c\/h4\u003e\n\u003cdiv class=\"group relative\"\u003e\n\u003cdiv class=\"w-full overflow-x-auto md:max-w-[90vw] border-subtlest ring-subtlest divide-subtlest bg-transparent\"\u003e\n\u003ctable class=\"border-subtler my-[1em] w-full table-auto border-separate border-spacing-0 border-l border-t\"\u003e\n\u003cthead class=\"bg-subtler\"\u003e\n\u003ctr\u003e\n\u003cth class=\"border-subtler p-sm break-normal border-b border-r text-left align-top\"\u003eParameter\u003c\/th\u003e\n\u003cth class=\"border-subtler p-sm break-normal border-b border-r text-left align-top\"\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003eOperating Voltage\u003c\/td\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003e3.0V – 5.5V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003eBus Voltage Range\u003c\/td\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003e0V – 26V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003eResolution\u003c\/td\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003e9‑12 bit programmable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003eInterface\u003c\/td\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003eI2C \/ IIC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003eAccuracy\u003c\/td\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003e±1% (–40 °C to +85 °C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003ePackage\u003c\/td\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003eCJMCU‑219 module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":42866375983255,"sku":"","price":29.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/products\/ina219-dc-current-monitor-module-front-view.jpg?v=1764225846"},{"product_id":"mq-2-gas-sensor-for-arduino","title":"MQ-2 Gas Sensor Module - Smoke, LPG, Methane Detector for Arduino","description":"\u003ch4\u003e\u003cb\u003eDetect Flammable Gas \u0026amp; Smoke with the MQ-2 Sensor Module\u003c\/b\u003e\u003c\/h4\u003e\n\u003cp\u003eBuild your next safety or environmental monitoring project with the reliable MQ-2 Gas Sensor Module. Ideal for Arduino, Raspberry Pi, and other microcontroller projects, this sensor is perfect for detecting home gas leaks, building an industrial combustible gas detector, or adding smoke detection to your DIY creations.\u003c\/p\u003e\n\u003cp\u003eIt features high sensitivity to a wide range of gases and provides both analog and digital outputs for maximum flexibility.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eKey Features:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eWide Detection Range:\u003c\/b\u003e Highly sensitive to LPG, Butane, Propane, Methane, Hydrogen, and Smoke.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDual Output Interface:\u003c\/b\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eAO (Analog Output):\u003c\/b\u003e Provides a real-time voltage signal that increases with gas concentration. Perfect for measuring precise levels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDO (Digital Output):\u003c\/b\u003e Provides a simple HIGH\/LOW signal when the gas concentration exceeds a preset threshold.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAdjustable Sensitivity:\u003c\/b\u003e An onboard potentiometer allows you to easily fine-tune the digital (DO) output's trigger point.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eClear Indicators:\u003c\/b\u003e Equipped with a power LED and a digital output indicator LED that lights up when the trigger threshold is reached.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eStable \u0026amp; Reliable:\u003c\/b\u003e Built with a high-quality dual-panel design for a long service life and rapid response\/recovery characteristics.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eEasy to Install:\u003c\/b\u003e Features four 3mm mounting holes for easy positioning in your project.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eHow to Use:\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eSimply power the module with 5V. After a brief 20-second warm-up period, the sensor will stabilize. Read the analog (AO) pin for a variable gas concentration reading, or use the digital (DO) pin for a simple alert when gas is detected above your set limit.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eModel:\u003c\/b\u003e MQ-2\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInput Voltage:\u003c\/b\u003e DC 5V\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePower Consumption:\u003c\/b\u003e 150mA\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOutputs:\u003c\/b\u003e 1x Analog (AO), 1x Digital (DO TTL)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDimensions:\u003c\/b\u003e 32mm x 22mm x 27mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAnalog Output (Clean Air):\u003c\/b\u003e 0.1V - 0.3V\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAnalog Output (High Concentration):\u003c\/b\u003e Approx. 4V\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003ePinout:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eVCC:\u003c\/b\u003e 5V Positive Power Supply\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eGND:\u003c\/b\u003e Ground\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDO:\u003c\/b\u003e Digital TTL Signal Output\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAO:\u003c\/b\u003e Analog Signal Output\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003ePackage Includes:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1 x MQ-2 Gas Sensor Module\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":42892946210967,"sku":"21PS001130","price":20.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/products\/mq-2-gas-smoke-sensor-angle-view.jpg?v=1762514107"},{"product_id":"gy-30-light-sensor-module","title":"BH1750 I2C Digital Light Intensity Sensor Module GY-302 for Arduino","description":"\u003ch4 data-start=\"1936\" data-end=\"1955\"\u003e\u003cstrong data-start=\"1940\" data-end=\"1955\"\u003e🔍 Overview\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp data-start=\"1956\" data-end=\"2316\"\u003eThe \u003cstrong data-start=\"1960\" data-end=\"2015\"\u003eGY-302 BH1750 Digital Light Intensity Sensor Module\u003c\/strong\u003e uses the original \u003cstrong data-start=\"2034\" data-end=\"2052\"\u003eROHM BH1750FVI\u003c\/strong\u003e chip and outputs direct Lux (lx) illumination readings. With an \u003cstrong data-start=\"2117\" data-end=\"2134\"\u003eI2C interface\u003c\/strong\u003e, it is easy to integrate with Arduino, Raspberry Pi, and various microcontroller platforms. Ideal for ambient light detection, smart lighting, and environmental monitoring projects.\u003c\/p\u003e\n\u003chr data-start=\"2318\" data-end=\"2321\"\u003e\n\u003ch4 data-start=\"2323\" data-end=\"2345\"\u003e\u003cstrong data-start=\"2327\" data-end=\"2345\"\u003e✨ Key Features\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli data-start=\"2348\" data-end=\"2435\"\u003e\n\u003cstrong data-start=\"2348\" data-end=\"2375\"\u003eHigh Accuracy Readings:\u003c\/strong\u003e Built-in 16-bit ADC ensures accurate and stable Lux output.\u003c\/li\u003e\n\u003cli data-start=\"2438\" data-end=\"2512\"\u003e\n\u003cstrong data-start=\"2438\" data-end=\"2461\"\u003eEasy I2C Interface:\u003c\/strong\u003e Plug-and-play wiring with most development boards.\u003c\/li\u003e\n\u003cli data-start=\"2515\" data-end=\"2610\"\u003e\n\u003cstrong data-start=\"2515\" data-end=\"2542\"\u003eWide Measurement Range:\u003c\/strong\u003e Supports \u003cstrong data-start=\"2552\" data-end=\"2567\"\u003e0–65535 Lux\u003c\/strong\u003e, suitable for indoor\/outdoor applications.\u003c\/li\u003e\n\u003cli data-start=\"2613\" data-end=\"2711\"\u003e\n\u003cstrong data-start=\"2613\" data-end=\"2634\"\u003e5V IO Compatible:\u003c\/strong\u003e Includes level shifting for direct connection to 5V microcontroller IO pins.\u003c\/li\u003e\n\u003cli data-start=\"2714\" data-end=\"2826\"\u003e\n\u003cstrong data-start=\"2714\" data-end=\"2742\"\u003eHuman-Eye-Like Response:\u003c\/strong\u003e Optical characteristics match human visual sensitivity for realistic light sensing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2828\" data-end=\"2831\"\u003e\n\u003ch4 data-start=\"2833\" data-end=\"2868\"\u003e\u003cstrong data-start=\"2837\" data-end=\"2868\"\u003e📐 Technical Specifications\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli data-start=\"2871\" data-end=\"2886\"\u003eModel: GY-302\u003c\/li\u003e\n\u003cli data-start=\"2889\" data-end=\"2911\"\u003eChip: ROHM BH1750FVI\u003c\/li\u003e\n\u003cli data-start=\"2914\" data-end=\"2940\"\u003eOperating Voltage: 3V–5V\u003c\/li\u003e\n\u003cli data-start=\"2943\" data-end=\"2959\"\u003eInterface: I2C\u003c\/li\u003e\n\u003cli data-start=\"2962\" data-end=\"2994\"\u003eMeasurement Range: 0–65535 Lux\u003c\/li\u003e\n\u003cli data-start=\"2997\" data-end=\"3040\"\u003eOutput: Digital (no calibration required)\u003c\/li\u003e\n\u003cli data-start=\"3043\" data-end=\"3073\"\u003eModule Size: 13.9mm × 18.5mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"3075\" data-end=\"3078\"\u003e\n\u003ch4 data-start=\"3080\" data-end=\"3096\"\u003e\u003cstrong data-start=\"3084\" data-end=\"3096\"\u003e🔧 Notes\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli data-start=\"3099\" data-end=\"3145\"\u003eHeader pins are \u003cstrong data-start=\"3115\" data-end=\"3144\"\u003eincluded but not soldered\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli data-start=\"3148\" data-end=\"3195\"\u003eUse only \u003cstrong data-start=\"3157\" data-end=\"3166\"\u003e3V–5V\u003c\/strong\u003e power input to avoid damage.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":42955818205335,"sku":"21PS001467","price":20.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/products\/bh1750-digital-light-intensity-module-top-view.jpg?v=1764145751"},{"product_id":"fsr402-sensitive-resistor-0-5-inch-pressure-sensor","title":"FSR402 Force Sensitive Resistor (0.5\") 100g–10kg Pressure Sensor","description":"\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eThe FSR402 Force Sensitive Resistor is a lightweight, ultra-thin pressure sensor that precisely detects forces from 100 grams up to 10 kilograms. Designed for intuitive integration with Arduino, UNO R3, and other microcontrollers, this sensor changes its electrical resistance depending on the pressure applied. The stronger the force, the lower the resistance—making it ideal for various smart sensing and interactive applications.\u003c\/p\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eBuilt for durability with a lifetime of more than 10 million actuations, the FSR402 provides consistent and accurate performance. Its compact 0.5-inch circular sensing area ensures easy installation in robotics, medical devices, and touch-based interfaces.\u003c\/p\u003e\n\u003ch4 class=\"mb-2 mt-4 font-display font-semimedium text-base first:mt-0\"\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eSensing range: 100g–10kg for both light and heavy pressure detection\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eSensing area: 0.5\" (1.27 cm) diameter circular design\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eOutput type: Passive variable resistor for easy analog reading\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eCompatible with Arduino, UNO R3, and other development boards\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eLong-lasting design with over 10 million press cycles\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 class=\"mb-2 mt-4 font-display font-semimedium text-base first:mt-0\"\u003eDimensions\u003c\/h4\u003e\n\u003cdiv class=\"group relative\"\u003e\n\u003cdiv class=\"w-full overflow-x-auto md:max-w-[90vw] border-subtlest ring-subtlest divide-subtlest bg-transparent\"\u003e\n\u003ctable class=\"border-subtler my-[1em] w-full table-auto border-separate border-spacing-0 border-l border-t\"\u003e\n\u003cthead class=\"bg-subtler\"\u003e\n\u003ctr\u003e\n\u003cth class=\"border-subtler p-sm break-normal border-b border-r text-left align-top\"\u003eMeasurement\u003c\/th\u003e\n\u003cth class=\"border-subtler p-sm break-normal border-b border-r text-left align-top\"\u003eImperial\u003c\/th\u003e\n\u003cth class=\"border-subtler p-sm break-normal border-b border-r text-left align-top\"\u003eMetric\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003eSensing Diameter\u003c\/td\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003e0.5\"\u003c\/td\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003e1.27 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003eOverall Length\u003c\/td\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003e2.375\"\u003c\/td\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003e6 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003eOverall Width\u003c\/td\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003e0.75\"\u003c\/td\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003e1.9 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bg-base border-subtler shadow-subtle pointer-coarse:opacity-100 right-xs absolute bottom-0 flex rounded-lg border opacity-0 transition-opacity group-hover:opacity-100 [\u0026amp;\u0026gt;*:not(:first-child)]:border-subtle [\u0026amp;\u0026gt;*:not(:first-child)]:border-l\"\u003e\n\u003cdiv class=\"flex\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"flex\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch4 class=\"mb-2 mt-4 font-display font-semimedium text-base first:mt-0\"\u003eTypical Applications\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\n\u003cstrong\u003eRobotics\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e– Use as a pressure feedback sensor for robotic grippers or touch-sensitive mechanisms.\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\n\u003cstrong\u003eBionic \u0026amp; medical systems\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e– Measure ground or limb pressure, or conduct biological testing such as bite‑force analysis.\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\n\u003cstrong\u003eDIY electronics\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e– Ideal for interactive buttons, smart switches, and force detection in creative hardware projects.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eThis reliable, versatile pressure sensor is an essential component for anyone developing responsive robotics, sensor-based control systems, or precision testing devices.\u003c\/p\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":42955877613719,"sku":"21PS001218","price":68.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/products\/fsr402-force-sensor-0-5-inch-top-view.jpg?v=1762497781"},{"product_id":"ds3231-rtc-real-time-clock-module-for-arduino","title":"DS3231 High-Precision RTC Real-Time Clock Module for Arduino\/Pi","description":"\u003cp\u003e\u003cb\u003eOverview:\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe DS3231 is an indispensable, high-accuracy I2C Real-Time Clock (RTC) module, featuring an integrated temperature-compensated crystal oscillator (TCXO) and crystal. Designed to maintain accurate time even when main power is removed, this module ensures your projects always have the correct time, date, and year information. It's ideal for Arduino, Raspberry Pi, and other microcontroller-based applications requiring reliable timekeeping.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eKey Features:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eExceptional Accuracy:\u003c\/b\u003e Achieves an impressive \u003cspan class=\"math-inline\"\u003e\u003cspan class=\"katex\"\u003e\u003cspan class=\"katex-html\" aria-hidden=\"true\"\u003e\u003cspan class=\"base\"\u003e\u003cspan class=\"strut\"\u003e\u003c\/span\u003e\u003cspan class=\"mord\"\u003e±\u003c\/span\u003e\u003cspan class=\"mord\"\u003e2\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003eppm accuracy within the \u003cspan class=\"math-inline\"\u003e\u003cspan class=\"katex\"\u003e\u003cspan class=\"katex-html\" aria-hidden=\"true\"\u003e\u003cspan class=\"base\"\u003e\u003cspan class=\"strut\"\u003e\u003c\/span\u003e\u003cspan class=\"mord\"\u003e0\u003c\/span\u003e\u003cspan class=\"mspace\"\u003e\u003c\/span\u003e\u003cspan class=\"mbin\"\u003e−\u003c\/span\u003e\u003cspan class=\"mspace\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"base\"\u003e\u003cspan class=\"strut\"\u003e\u003c\/span\u003e\u003cspan class=\"mord\"\u003e4\u003c\/span\u003e\u003cspan class=\"mord\"\u003e0\u003cspan class=\"msupsub\"\u003e\u003cspan class=\"vlist-t\"\u003e\u003cspan class=\"vlist-r\"\u003e\u003cspan class=\"vlist\"\u003e\u003cspan class=\"\"\u003e\u003cspan class=\"pstrut\"\u003e\u003c\/span\u003e\u003cspan class=\"sizing reset-size6 size3 mtight\"\u003e\u003cspan class=\"mbin mtight\"\u003e∘\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"mord mathnormal\"\u003eC\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e range, resulting in an annual error of approximately one minute.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eIntegrated TCXO \u0026amp; Crystal:\u003c\/b\u003e Enhances long-term accuracy and reduces external component count.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eBattery Backup:\u003c\/b\u003e Includes a CR2032 battery holder to ensure continuous timekeeping during power outages.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eComprehensive Timekeeping:\u003c\/b\u003e Tracks seconds, minutes, hours, day of the week, date, month, and year. Automatically adjusts for months with fewer than 31 days and corrects for leap years until 2100.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFlexible Time Formats:\u003c\/b\u003e Supports both 24-hour and 12-hour (with AM\/PM indication) formats.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDual Calendar Alarms:\u003c\/b\u003e Features two programmable calendar alarm clocks for precise event triggering.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eProgrammable Square Wave Output:\u003c\/b\u003e Provides a configurable square wave signal for various applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eIntegrated Temperature Sensor:\u003c\/b\u003e Built-in \u003cspan class=\"math-inline\"\u003e\u003cspan class=\"katex\"\u003e\u003cspan class=\"katex-html\" aria-hidden=\"true\"\u003e\u003cspan class=\"base\"\u003e\u003cspan class=\"strut\"\u003e\u003c\/span\u003e\u003cspan class=\"mord\"\u003e±\u003c\/span\u003e\u003cspan class=\"mord\"\u003e3\u003cspan class=\"msupsub\"\u003e\u003cspan class=\"vlist-t\"\u003e\u003cspan class=\"vlist-r\"\u003e\u003cspan class=\"vlist\"\u003e\u003cspan class=\"\"\u003e\u003cspan class=\"pstrut\"\u003e\u003c\/span\u003e\u003cspan class=\"sizing reset-size6 size3 mtight\"\u003e\u003cspan class=\"mbin mtight\"\u003e∘\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"mord mathnormal\"\u003eC\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e accuracy temperature sensor accessible via the I2C interface.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAT24C32 Memory Chip:\u003c\/b\u003e Onboard 32K I2C EEPROM for additional data storage (AT24C32).\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eI2C Interface:\u003c\/b\u003e Simple two-wire I2C\/IIC bus interface for easy communication with microcontrollers. Supports up to 400kHz transmission speed at 5V operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCascadable:\u003c\/b\u003e The 24C32 address can be modified via shorting A0\/A1\/A2, allowing for cascading with other I2C devices.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePower Monitoring:\u003c\/b\u003e Precision voltage reference and comparator circuits monitor VCC status, detect power failure, provide a reset output, and manage automatic power switching.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eTechnical Specifications:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eWorking Voltage:\u003c\/b\u003e \u003cspan class=\"math-inline\"\u003e\u003cspan class=\"katex\"\u003e\u003cspan class=\"katex-html\" aria-hidden=\"true\"\u003e\u003cspan class=\"base\"\u003e\u003cspan class=\"strut\"\u003e\u003c\/span\u003e\u003cspan class=\"mord\"\u003e3.3\u003c\/span\u003e\u003cspan class=\"mord mathnormal\"\u003eV\u003c\/span\u003e\u003cspan class=\"mspace\"\u003e\u003c\/span\u003e\u003cspan class=\"mbin\"\u003e−\u003c\/span\u003e\u003cspan class=\"mspace\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"base\"\u003e\u003cspan class=\"strut\"\u003e\u003c\/span\u003e\u003cspan class=\"mord\"\u003e5.5\u003c\/span\u003e\u003cspan class=\"mord mathnormal\"\u003eV\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDimensions:\u003c\/b\u003e \u003cspan class=\"math-inline\"\u003e\u003cspan class=\"katex\"\u003e\u003cspan class=\"katex-html\" aria-hidden=\"true\"\u003e\u003cspan class=\"base\"\u003e\u003cspan class=\"strut\"\u003e\u003c\/span\u003e\u003cspan class=\"mord\"\u003e38\u003c\/span\u003e\u003cspan class=\"mord mathnormal\"\u003emm\u003c\/span\u003e\u003cspan class=\"mopen\"\u003e(\u003c\/span\u003e\u003cspan class=\"mord mathnormal\"\u003eL\u003c\/span\u003e\u003cspan class=\"mclose\"\u003e)\u003c\/span\u003e\u003cspan class=\"mspace\"\u003e\u003c\/span\u003e\u003cspan class=\"mbin\"\u003e×\u003c\/span\u003e\u003cspan class=\"mspace\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"base\"\u003e\u003cspan class=\"strut\"\u003e\u003c\/span\u003e\u003cspan class=\"mord\"\u003e22\u003c\/span\u003e\u003cspan class=\"mord mathnormal\"\u003emm\u003c\/span\u003e\u003cspan class=\"mopen\"\u003e(\u003c\/span\u003e\u003cspan class=\"mord mathnormal\"\u003eW\u003c\/span\u003e\u003cspan class=\"mclose\"\u003e)\u003c\/span\u003e\u003cspan class=\"mspace\"\u003e\u003c\/span\u003e\u003cspan class=\"mbin\"\u003e×\u003c\/span\u003e\u003cspan class=\"mspace\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"base\"\u003e\u003cspan class=\"strut\"\u003e\u003c\/span\u003e\u003cspan class=\"mord\"\u003e14\u003c\/span\u003e\u003cspan class=\"mord mathnormal\"\u003emm\u003c\/span\u003e\u003cspan class=\"mopen\"\u003e(\u003c\/span\u003e\u003cspan class=\"mord mathnormal\"\u003eH\u003c\/span\u003e\u003cspan class=\"mclose\"\u003e)\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eClock Chip:\u003c\/b\u003e DS3231\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMemory Chip:\u003c\/b\u003e AT24C32 (32K capacity)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInterface:\u003c\/b\u003e I2C\/IIC\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eBattery Type:\u003c\/b\u003e CR2032\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eTypical Applications:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eData logging systems\u003c\/li\u003e\n\u003cli\u003eIoT devices\u003c\/li\u003e\n\u003cli\u003eAutomated watering systems\u003c\/li\u003e\n\u003cli\u003eTime-stamped projects\u003c\/li\u003e\n\u003cli\u003eBattery-powered applications\u003c\/li\u003e\n\u003cli\u003eAny project requiring highly accurate timekeeping\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eWiring Instructions (For Arduino Uno R3 Example):\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eSCL\u003c\/b\u003e \u003cspan class=\"math-inline\"\u003e\u003cspan class=\"katex\"\u003e\u003cspan class=\"katex-html\" aria-hidden=\"true\"\u003e\u003cspan class=\"base\"\u003e\u003cspan class=\"strut\"\u003e\u003c\/span\u003e\u003cspan class=\"mrel\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e A5\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSDA\u003c\/b\u003e \u003cspan class=\"math-inline\"\u003e\u003cspan class=\"katex\"\u003e\u003cspan class=\"katex-html\" aria-hidden=\"true\"\u003e\u003cspan class=\"base\"\u003e\u003cspan class=\"strut\"\u003e\u003c\/span\u003e\u003cspan class=\"mrel\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e A4\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eVCC\u003c\/b\u003e \u003cspan class=\"math-inline\"\u003e\u003cspan class=\"katex\"\u003e\u003cspan class=\"katex-html\" aria-hidden=\"true\"\u003e\u003cspan class=\"base\"\u003e\u003cspan class=\"strut\"\u003e\u003c\/span\u003e\u003cspan class=\"mrel\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e 5V\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eGND\u003c\/b\u003e \u003cspan class=\"math-inline\"\u003e\u003cspan class=\"katex\"\u003e\u003cspan class=\"katex-html\" aria-hidden=\"true\"\u003e\u003cspan class=\"base\"\u003e\u003cspan class=\"strut\"\u003e\u003c\/span\u003e\u003cspan class=\"mrel\"\u003e→\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e GND\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":43008641106071,"sku":"21PS001343","price":29.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/products\/ds3231-rtc-clock-module-back-view.jpg?v=1755615252"},{"product_id":"gy-271-3v-5v-triple-compass-magnetometer-sensor-module","title":"GY-271 HMC5883L Triple Axis Compass Magnetometer Module (3V-5V)","description":"\u003ch4\u003eGY-271 HMC5883L\/QMC5883L Triple Axis Compass Magnetometer Module (3V-5V)\u003c\/h4\u003e\n\u003cp data-path-to-node=\"27\"\u003eThe \u003cb\u003eGY-271 Triple Axis Compass\/Magnetometer Module\u003c\/b\u003e is an essential sensor for achieving accurate directional sensing and navigation in your electronics projects. Equipped with the high-performance \u003cb\u003eHMC5883L\u003c\/b\u003e (or compatible \u003cb\u003eQMC5883L\u003c\/b\u003e) chip, it delivers reliable three-dimensional magnetic field data, allowing your \u003cb\u003eArduino\u003c\/b\u003e, Raspberry Pi, or other microcontroller projects to easily function as an electronic compass.\u003c\/p\u003e\n\u003cp data-path-to-node=\"28\"\u003e \u003c\/p\u003e\n\u003ch4\u003e✨ Key Features \u0026amp; Benefits\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli data-path-to-node=\"29,0,0\"\u003e\n\u003cb\u003ePrecise Triple Axis Sensing:\u003c\/b\u003e Provides X, Y, and Z-axis magnetic field strength data for full-range orientation and heading detection.\u003c\/li\u003e\n\u003cli data-path-to-node=\"29,1,0\"\u003e\n\u003cb\u003eStandard IIC Communication:\u003c\/b\u003e Utilizes the widely adopted \u003cspan class=\"math-inline\" data-math=\"I^2C\"\u003e$I^2C$\u003c\/span\u003e (IIC\/TWI) protocol, enabling fast connection and communication with the host controller using only two signal lines.\u003c\/li\u003e\n\u003cli data-path-to-node=\"29,2,0\"\u003e\n\u003cb\u003eWide Voltage Compatibility:\u003c\/b\u003e Supports a \u003cb\u003e3V to 5V\u003c\/b\u003e power supply, making it directly compatible with most mainstream microcontroller systems like Arduino UNO and Mega.\u003c\/li\u003e\n\u003cli data-path-to-node=\"29,3,0\"\u003e\n\u003cb\u003eCompact Size:\u003c\/b\u003e The module's compact design (\u003cspan class=\"math-inline\" data-math=\"13.2mm \\times 14.4mm\"\u003e$13.2mm \\times 14.4mm$\u003c\/span\u003e) allows for easy integration into space-constrained applications such as drones, robotics, or wearable devices.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-path-to-node=\"30\"\u003e \u003c\/p\u003e\n\u003ch4\u003e🔧 Technical Specifications\u003c\/h4\u003e\n\u003ctable data-path-to-node=\"31\" style=\"width: 99.9589%; height: 156.666px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"height: 19.5833px;\"\u003e\n\u003ctd style=\"width: 42.7432%; height: 19.5833px;\"\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 54.7964%; height: 19.5833px;\"\u003e\u003cstrong\u003eDetails\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.5833px;\"\u003e\n\u003ctd style=\"width: 42.7432%; height: 19.5833px;\"\u003e\u003cspan data-path-to-node=\"31,1,0,0\"\u003e\u003cb\u003eModule Model\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 54.7964%; height: 19.5833px;\"\u003e\u003cspan data-path-to-node=\"31,1,1,0\"\u003eGY-271\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5833px;\"\u003e\n\u003ctd style=\"width: 42.7432%; height: 19.5833px;\"\u003e\u003cspan data-path-to-node=\"31,2,0,0\"\u003e\u003cb\u003eSensor Chip\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 54.7964%; height: 19.5833px;\"\u003e\u003cspan data-path-to-node=\"31,2,1,0\"\u003eHMC5883L or QMC5883L\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5833px;\"\u003e\n\u003ctd style=\"width: 42.7432%; height: 19.5833px;\"\u003e\u003cspan data-path-to-node=\"31,3,0,0\"\u003e\u003cb\u003eOperating Voltage\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 54.7964%; height: 19.5833px;\"\u003e\u003cspan data-path-to-node=\"31,3,1,0\"\u003e3V - 5V DC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5833px;\"\u003e\n\u003ctd style=\"width: 42.7432%; height: 19.5833px;\"\u003e\u003cspan data-path-to-node=\"31,4,0,0\"\u003e\u003cb\u003eCommunication Protocol\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 54.7964%; height: 19.5833px;\"\u003e\u003cspan data-path-to-node=\"31,4,1,0\"\u003eStandard IIC ( \u003cspan class=\"math-inline\" data-math=\"I^2C\"\u003e$I^2C$\u003c\/span\u003e )\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5833px;\"\u003e\n\u003ctd style=\"width: 42.7432%; height: 19.5833px;\"\u003e\u003cspan data-path-to-node=\"31,5,0,0\"\u003e\u003cb\u003eMeasuring Range\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 54.7964%; height: 19.5833px;\"\u003e\u003cspan data-path-to-node=\"31,5,1,0\"\u003e\u003cspan class=\"math-inline\" data-math=\"\\pm 1.3\"\u003e$\\pm 1.3$\u003c\/span\u003e to 8 Gauss\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5833px;\"\u003e\n\u003ctd style=\"width: 42.7432%; height: 19.5833px;\"\u003e\u003cspan data-path-to-node=\"31,6,0,0\"\u003e\u003cb\u003eModule Dimensions\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 54.7964%; height: 19.5833px;\"\u003e\u003cspan data-path-to-node=\"31,6,1,0\"\u003e\u003cspan class=\"math-inline\" data-math=\"13.2mm \\times 14.4mm\"\u003e$13.2mm \\times 14.4mm$\u003c\/span\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5833px;\"\u003e\n\u003ctd style=\"width: 42.7432%; height: 19.5833px;\"\u003e\u003cspan data-path-to-node=\"31,7,0,0\"\u003e\u003cb\u003ePlatform Compatibility\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 54.7964%; height: 19.5833px;\"\u003e\u003cspan data-path-to-node=\"31,7,1,0\"\u003eArduino, Raspberry Pi, STM32, etc.\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp data-path-to-node=\"32\"\u003e \u003c\/p\u003e\n\u003ch4\u003e📦 Package Includes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli data-path-to-node=\"33,0,0\"\u003e1 × HMC5883L \/ QMC5883L GY-271 Triple Axis Compass Magnetometer Sensor Module\u003c\/li\u003e\n\u003cli data-path-to-node=\"33,1,0\"\u003eHeader Pins Set (for soldering connection)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":43067091288215,"sku":"21PS001420","price":29.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/products\/gy-271-hmc5883l-compass-magnetometer-with-headers.jpg?v=1764063150"},{"product_id":"yf-s401-water-flow-sensor","title":"YF-S401 Water Flow Sensor (0.3-6L\/min) for Coffee Makers \u0026 Arduino","description":"\u003ch2 data-path-to-node=\"6\"\u003e\u003cb data-path-to-node=\"6\" data-index-in-node=\"0\"\u003ePrecision Fluid Measurement You Can Trust\u003c\/b\u003e\u003c\/h2\u003e\n\u003cp data-path-to-node=\"6\"\u003eIn the world of automated fluid control, precision is everything. Whether you are repairing a high-end commercial coffee machine, designing a smart water dispenser, or building an automated irrigation system for a STEM project, the \u003cb data-path-to-node=\"6\" data-index-in-node=\"274\"\u003eYF-S401 Water Flow Sensor\u003c\/b\u003e provides the exact data you need. Built with a high-quality magnetic rotor and a Hall effect sensor, this device translates water movement into a readable electrical pulse, allowing your microcontroller to track fluid volume with exceptional accuracy.\u003c\/p\u003e\n\u003cp data-path-to-node=\"6\"\u003e \u003c\/p\u003e\n\u003ch3 data-path-to-node=\"7\"\u003e\u003cb data-path-to-node=\"7\" data-index-in-node=\"0\"\u003eHow the YF-S401 Solves Your Flow Control Problems\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp data-path-to-node=\"7\"\u003eMechanical flow meters often suffer from wear and tear, leading to inaccurate readings and frequent replacements. The YF-S401 bypasses this issue entirely. By utilizing a \u003cb data-path-to-node=\"7\" data-index-in-node=\"221\"\u003eHall effect sensor\u003c\/b\u003e that is sealed completely away from the water pipe, it ensures that the internal electronics stay dry and safe. This translates to a longer lifespan and zero signal degradation over time.\u003c\/p\u003e\n\u003cp data-path-to-node=\"8\"\u003eFurthermore, integration is incredibly straightforward. With a standard three-wire output (Red for Power, Black for Ground, and Yellow for Signal), it connects seamlessly to popular microcontrollers like \u003cb data-path-to-node=\"8\" data-index-in-node=\"204\"\u003eArduino\u003c\/b\u003e and \u003cb data-path-to-node=\"8\" data-index-in-node=\"216\"\u003eRaspberry Pi\u003c\/b\u003e. You don't need complex adapters or proprietary boards to get started. Just hook it up, apply the basic frequency calculation formula, and you have a professional-grade flow measurement system ready to go.\u003c\/p\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":43365322719383,"sku":"21PS001219","price":49.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/files\/yf-s401-coffee-maker-flowmeter-top.jpg?v=1775796190"},{"product_id":"4-pin-ir-flame-sensor-module-for-arduino","title":"LM393 IR Flame Sensor Module 4-Pin Fire Detector for Arduino DIY Kit","description":"\u003cp data-path-to-node=\"9\"\u003eDetect fire and light sources with precision using this \u003cb\u003eLM393 4-Pin IR Flame Sensor Module\u003c\/b\u003e. Designed specifically for Arduino and microcontroller projects, this module is sensitive to flame wavelengths between 760nm and 1100nm. Whether you are building a fire alarm system, a firefighting robot, or a safety monitoring device, this sensor provides reliable detection with both digital and analog outputs.\u003c\/p\u003e\n\u003cp data-path-to-node=\"10\"\u003e\u003cb\u003eKey Features:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-path-to-node=\"11,0,0\"\u003e\n\u003cb\u003eHigh Sensitivity:\u003c\/b\u003e Detects flames or light sources in the 760nm–1100nm range.\u003c\/li\u003e\n\u003cli data-path-to-node=\"11,1,0\"\u003e\n\u003cb\u003eWide Detection Angle:\u003c\/b\u003e approximately 60 degrees, specifically tuned for flame spectra.\u003c\/li\u003e\n\u003cli data-path-to-node=\"11,2,0\"\u003e\n\u003cb\u003eDual Output Modes:\u003c\/b\u003e\n\u003cul\u003e\n\u003cli data-path-to-node=\"11,2,1,0,0\"\u003e\n\u003cb\u003eDO (Digital Output):\u003c\/b\u003e Switch signal (0 and 1) for easy logic integration.\u003c\/li\u003e\n\u003cli data-path-to-node=\"11,2,1,1,0\"\u003e\n\u003cb\u003eAO (Analog Output):\u003c\/b\u003e Provides real-time voltage values for higher accuracy measurement.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli data-path-to-node=\"11,3,0\"\u003e\n\u003cb\u003eAdjustable Sensitivity:\u003c\/b\u003e On-board blue potentiometer allows you to fine-tune the detection threshold.\u003c\/li\u003e\n\u003cli data-path-to-node=\"11,4,0\"\u003e\n\u003cb\u003eClean Signal:\u003c\/b\u003e Uses the LM393 comparator for a stable waveform and strong driving ability (\u0026gt;15mA).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-path-to-node=\"12\"\u003e\u003cb\u003eTechnical Specifications:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-path-to-node=\"13,0,0\"\u003e\n\u003cb\u003eController:\u003c\/b\u003e LM393 Comparator (Wide voltage)\u003c\/li\u003e\n\u003cli data-path-to-node=\"13,1,0\"\u003e\n\u003cb\u003eWorking Voltage:\u003c\/b\u003e 3.3V – 5V DC\u003c\/li\u003e\n\u003cli data-path-to-node=\"13,2,0\"\u003e\n\u003cb\u003eDetection Range:\u003c\/b\u003e Up to 80cm (Greater distance for larger flames)\u003c\/li\u003e\n\u003cli data-path-to-node=\"13,3,0\"\u003e\n\u003cb\u003eIndicators:\u003c\/b\u003e Power LED and Digital Output LED\u003c\/li\u003e\n\u003cli data-path-to-node=\"13,4,0\"\u003e\n\u003cb\u003ePCB Size:\u003c\/b\u003e 3.2cm x 1.4cm\u003c\/li\u003e\n\u003cli data-path-to-node=\"13,5,0\"\u003e\n\u003cb\u003eMounting:\u003c\/b\u003e Fixed bolt hole for easy installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-path-to-node=\"14\"\u003e\u003cb\u003ePinout:\u003c\/b\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli data-path-to-node=\"15,0,0\"\u003e\n\u003cb\u003eVCC:\u003c\/b\u003e 3.3V-5V Voltage\u003c\/li\u003e\n\u003cli data-path-to-node=\"15,1,0\"\u003e\n\u003cb\u003eGND:\u003c\/b\u003e Ground\u003c\/li\u003e\n\u003cli data-path-to-node=\"15,2,0\"\u003e\n\u003cb\u003eDO:\u003c\/b\u003e Digital Output Interface (0 and 1)\u003c\/li\u003e\n\u003cli data-path-to-node=\"15,3,0\"\u003e\n\u003cb\u003eAO:\u003c\/b\u003e Analog Output Interface\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp data-path-to-node=\"16\"\u003e\u003cb\u003eNote:\u003c\/b\u003e The sensor should be kept at a safe distance from the actual flame to avoid heat damage.\u003c\/p\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":43365334450327,"sku":"21PS001242","price":10.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/files\/lm393-ir-flame-sensor-module-arduino-front.jpg?v=1763799070"},{"product_id":"load-cell-5kg-hx711-ad-module","title":"5kg Load Cell Weight Sensor with HX711 AD Module | Arduino Compatible","description":"\u003ch2 data-path-to-node=\"6\"\u003e\u003cb data-path-to-node=\"6\" data-index-in-node=\"0\"\u003eUnlock Precision Weighing for Your DIY Projects\u003c\/b\u003e\u003c\/h2\u003e\n\u003cp data-path-to-node=\"6\"\u003eWhether you are building a smart coffee scale, an automated pet feeder, or a custom industrial testing rig, accurate weight measurement is critical. The \u003cb data-path-to-node=\"6\" data-index-in-node=\"201\"\u003e5kg Load Cell combined with the HX711 AD Module\u003c\/b\u003e provides a complete, easy-to-integrate solution for capturing precise force and weight data.\u003c\/p\u003e\n\u003cp data-path-to-node=\"6\"\u003e \u003c\/p\u003e\n\u003ch3 data-path-to-node=\"7\"\u003e\u003cb data-path-to-node=\"7\" data-index-in-node=\"0\"\u003eHow the HX711 Module Enhances Performance\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp data-path-to-node=\"7\"\u003eRaw load cells output very tiny analog signals that standard microcontrollers cannot read accurately. The included \u003cb data-path-to-node=\"7\" data-index-in-node=\"157\"\u003eHX711 24-bit Analog-to-Digital (AD) converter module\u003c\/b\u003e bridges this gap. It features a built-in low-noise amplifier that actively filters out environmental and electromagnetic interference. This ensures the weight data transmitted to your system is stable, highly accurate, and free from frustrating fluctuations.\u003c\/p\u003e\n\u003cp data-path-to-node=\"7\"\u003e \u003c\/p\u003e\n\u003ch3 data-path-to-node=\"8\"\u003e\u003cb data-path-to-node=\"8\" data-index-in-node=\"0\"\u003eDesigned for Seamless Integration\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp data-path-to-node=\"8\"\u003eSpace on a breadboard or inside a custom 3D-printed enclosure is always at a premium. Both the aluminum alloy load cell and the HX711 module feature a \u003cb data-path-to-node=\"8\" data-index-in-node=\"185\"\u003ecompact footprint\u003c\/b\u003e, allowing you to embed them into tight spaces. The four-wire interface is incredibly straightforward, operating on a standard 5-10V driving voltage, drastically reducing your prototyping time.\u003c\/p\u003e\n\u003cp data-path-to-node=\"8\"\u003e \u003c\/p\u003e\n\u003ch3 data-path-to-node=\"9\"\u003e\u003cb data-path-to-node=\"9\" data-index-in-node=\"0\"\u003eBuilt for Reliability\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp data-path-to-node=\"9\"\u003eConstructed from durable aluminum alloy, the weighing pressure sensor is built to last through rigorous testing and daily operation. Simply secure one end using the pre-drilled screw holes, suspend the other end, and apply weight in the direction of the label to start gathering high-speed, reliable data.\u003c\/p\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":43409691279511,"sku":"21TS001394","price":25.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/files\/5kg-load-cell-hx711-module-top-view.jpg?v=1777438262"},{"product_id":"9-in-1-arduino-uno-multi-function-expansion-board","title":"Arduino UNO 9-in-1 Multifunction Expansion Board (DHT11\/LM35\/Shield)","description":"\u003cp data-path-to-node=\"3\"\u003e\u003cb\u003eArduino UNO 9-in-1 Multifunction Expansion Board (No Soldering Required)\u003c\/b\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"4\"\u003eThe 9-in-1 Multifunction Expansion Board is the ultimate learning companion for Arduino UNO R3 users. By integrating 9 of the most commonly used electronic modules onto a single PCB, this shield eliminates the hassle of complex wiring, breadboards, and soldering.\u003c\/p\u003e\n\u003cp data-path-to-node=\"5\"\u003e\u003cb\u003eWhy Choose This Board?\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-path-to-node=\"6,0,0\"\u003e\n\u003cb\u003ePlug \u0026amp; Play Design:\u003c\/b\u003e Designed as a shield that plugs directly onto your Arduino UNO R3. No jumper wires are needed, allowing you to jump straight into coding and logic learning.\u003c\/li\u003e\n\u003cli data-path-to-node=\"6,1,0\"\u003e\n\u003cb\u003eAll-in-One Functionality:\u003c\/b\u003e Features a temperature\/humidity sensor, buzzer, buttons, LEDs, and more, covering the vast majority of beginner experiments.\u003c\/li\u003e\n\u003cli data-path-to-node=\"6,2,0\"\u003e\n\u003cb\u003ePerfect for STEM Education:\u003c\/b\u003e An ideal platform for schools, training centers, and self-learners to master electronics without hardware frustration.\u003c\/li\u003e\n\u003cli data-path-to-node=\"6,3,0\"\u003e\n\u003cb\u003eExpansion Ready:\u003c\/b\u003e Includes reserved headers for additional Digital (D7, D8) and Analog (A3) connections, plus I2C and TTL serial interfaces for advanced projects.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-path-to-node=\"7\"\u003e\u003cb\u003eOn-Board Modules \u0026amp; Pinout:\u003c\/b\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"8\"\u003eThis expansion board features the following integrated modules, pre-connected to specific pins:\u003c\/p\u003e\n\u003ctable data-path-to-node=\"9\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFunction Module\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003ePin Assignment\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd data-path-to-node=\"9,1,0,0\"\u003e\u003cb\u003eDHT11 Sensor\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd data-path-to-node=\"9,1,1,0\"\u003eMeasures ambient temperature \u0026amp; humidity\u003c\/td\u003e\n\u003ctd data-path-to-node=\"9,1,2,0\"\u003eD4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-path-to-node=\"9,2,0,0\"\u003e\u003cb\u003eLM35 Sensor\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd data-path-to-node=\"9,2,1,0\"\u003ePrecision temperature sensor\u003c\/td\u003e\n\u003ctd data-path-to-node=\"9,2,2,0\"\u003eA2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-path-to-node=\"9,3,0,0\"\u003e\u003cb\u003eRotary Potentiometer\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd data-path-to-node=\"9,3,1,0\"\u003eAnalog input for adjusting values\u003c\/td\u003e\n\u003ctd data-path-to-node=\"9,3,2,0\"\u003eA0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-path-to-node=\"9,4,0,0\"\u003e\u003cb\u003eLDR (Light Sensor)\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd data-path-to-node=\"9,4,1,0\"\u003eDetects ambient light intensity\u003c\/td\u003e\n\u003ctd data-path-to-node=\"9,4,2,0\"\u003eA1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-path-to-node=\"9,5,0,0\"\u003e\u003cb\u003eIR Receiver\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd data-path-to-node=\"9,5,1,0\"\u003eReceives infrared remote control signals\u003c\/td\u003e\n\u003ctd data-path-to-node=\"9,5,2,0\"\u003eD6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-path-to-node=\"9,6,0,0\"\u003e\u003cb\u003ePassive Buzzer\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd data-path-to-node=\"9,6,1,0\"\u003eGenerates sound tones or music\u003c\/td\u003e\n\u003ctd data-path-to-node=\"9,6,2,0\"\u003eD5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-path-to-node=\"9,7,0,0\"\u003e\u003cb\u003eRGB LED\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd data-path-to-node=\"9,7,1,0\"\u003eProgrammable full-color LED\u003c\/td\u003e\n\u003ctd data-path-to-node=\"9,7,2,0\"\u003eD9, D10, D11\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-path-to-node=\"9,8,0,0\"\u003e\u003cb\u003eDual LED Indicators\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd data-path-to-node=\"9,8,1,0\"\u003eRed and Blue status LEDs\u003c\/td\u003e\n\u003ctd data-path-to-node=\"9,8,2,0\"\u003eD12, D13\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-path-to-node=\"9,9,0,0\"\u003e\u003cb\u003eDual Push Buttons\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd data-path-to-node=\"9,9,1,0\"\u003eTactile input buttons\u003c\/td\u003e\n\u003ctd data-path-to-node=\"9,9,2,0\"\u003eD2, D3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp data-path-to-node=\"10\"\u003e\u003cb\u003eAdditional Specifications:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-path-to-node=\"11,0,0\"\u003e\n\u003cb\u003eExternal Interfaces:\u003c\/b\u003e 1x I2C Interface (A4 SDA, A5 SCL), 1x TTL Serial Port, 2x Digital Ports (D7, D8), 1x Analog Port (A3).\u003c\/li\u003e\n\u003cli data-path-to-node=\"11,1,0\"\u003e\n\u003cb\u003eReset Button:\u003c\/b\u003e On-board reset functionality.\u003c\/li\u003e\n\u003cli data-path-to-node=\"11,2,0\"\u003e\n\u003cb\u003eSafety Design:\u003c\/b\u003e Custom high-pin headers prevent short-circuit contact with the UNO board's USB connector.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-path-to-node=\"12\"\u003e\u003cb\u003eTarget Audience:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-path-to-node=\"13,0,0\"\u003eArduino Beginners \u0026amp; Hobbyists\u003c\/li\u003e\n\u003cli data-path-to-node=\"13,1,0\"\u003eElectronics Engineering Students\u003c\/li\u003e\n\u003cli data-path-to-node=\"13,2,0\"\u003eSTEM Educators \u0026amp; Teachers\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":43617563017367,"sku":"21PS002120","price":29.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/files\/arduino-9-in-1-shield-pinout-top-view.jpg?v=1763628679"},{"product_id":"analog-piezoelectric-ceramic-vibration-sensor-module-for-arduino","title":"Analog Piezoelectric Ceramic Vibration Sensor Module for Arduino","description":"\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eThe Analog Piezoelectric Ceramic Vibration Sensor Module is designed for detecting vibrations, knocks, or motion in various electronic projects. It uses a high-sensitivity piezoelectric ceramic element that generates a voltage signal proportional to the vibration strength, providing precise analog readings. Perfect for Arduino makers, robotics enthusiasts, and DIY musicians, this module can also simulate percussion input for an electronic drum project.\u003c\/p\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eDetects vibration intensity via analog output\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eSuitable for Arduino, Raspberry Pi, and other microcontrollers\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eIdeal for vibration measurement, security systems, or interactive projects\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eBuilt-in buffer circuit for stable analog signal output\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eLow power consumption (\u0026lt;1mA) and wide operating range\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eWorking Voltage: 3.3V or 5V\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eWorking Current: \u0026lt;1mA\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eOperating Temperature: -10°C to +70°C\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eOutput Interface: Analog\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eDimensions: 30mm × 23mm\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003ePin Definition:\n\u003cul\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003e: Signal Output\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\n\u003cstrong\u003e+\u003c\/strong\u003e: Power Supply (VCC)\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\n\u003cstrong\u003e–\u003c\/strong\u003e: Ground (GND)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003eWiring Instructions\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eConnect\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eS\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eto the controller’s analog input pin\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eConnect\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e+\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eand\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e–\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eto +5V and GND respectively\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eInput and GND are internally connected to the ceramic sensor’s poles\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003ePackage Includes\u003c\/strong\u003e\u003cbr\u003e1 × Analog Piezoelectric Ceramic Vibration Sensor Module for Arduino DIY Kit\u003c\/p\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eElectronic drum simulation\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eDIY vibration monitoring\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eSecurity system vibration detection\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eRobotics and interactive projects\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":43695831875735,"sku":"21PS002210","price":19.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/files\/arduino-piezo-vibration-sensor-lcd-display-demo.jpg?v=1777626619"},{"product_id":"hc-sr501-pir-module-for-arduino","title":"HC-SR501 PIR Infrared Motion Sensor Module for Arduino \u0026 Raspberry Pi","description":"\u003ch4\u003e🌟 \u003cb\u003eProduct Highlights \u0026amp; Key Benefits\u003c\/b\u003e\n\u003c\/h4\u003e\n\u003cblockquote\u003e\n\u003cp\u003eIntroducing the highly sensitive \u003cb\u003eHC-SR501 PIR Motion Sensor Module\u003c\/b\u003e, the ideal component for your \u003cb\u003eArduino, Raspberry Pi\u003c\/b\u003e, and microcontroller projects.\u003c\/p\u003e\n\u003cp\u003eBuilt with advanced infrared technology and the \u003cb\u003eLHI778 probe\u003c\/b\u003e design, this module delivers high reliability, superb sensitivity, and an \u003cb\u003eultra-low voltage operation mode\u003c\/b\u003e. It's perfect for automatically controlling lights, building security alerts, or creating smart, battery-operated devices.\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e💡 \u003cb\u003eKey Features\u003c\/b\u003e\n\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eWide Detection Range:\u003c\/b\u003e Offers a \u003cb\u003e110-degree\u003c\/b\u003e sensing area and detects human movement up to \u003cb\u003e7 meters\u003c\/b\u003e away.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eEnhanced Sensitivity:\u003c\/b\u003e Equipped with a specialized \u003cb\u003eFresnel Lens\u003c\/b\u003e that efficiently focuses infrared radiation onto the sensor for improved accuracy.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eEnergy Efficient:\u003c\/b\u003e Features an \u003cb\u003eultra-low standby current\u003c\/b\u003e (less than 50µA), making it exceptionally well-suited for \u003cb\u003ebattery-powered\u003c\/b\u003e and portable self-controlled products.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFlexible Trigger Modes:\u003c\/b\u003e Easily switch between \u003cb\u003enon-repeatable trigger (L)\u003c\/b\u003e and \u003cb\u003erepeatable trigger (H)\u003c\/b\u003e modes using the onboard jumper cap.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCustomizable Settings:\u003c\/b\u003e Includes adjustable potentiometers to fine-tune the sensor's \u003cb\u003esensitivity\u003c\/b\u003e and the \u003cb\u003etime delay\u003c\/b\u003e (from 2.5 seconds up to 10 seconds).\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eBroad Compatibility:\u003c\/b\u003e A versatile electronic component ready for seamless integration with popular platforms like Arduino, Raspberry Pi, ESP8266, and more.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e🛠️ \u003cb\u003eTechnical Specification\u003c\/b\u003e\n\u003c\/h4\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAttribute\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eDetail\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eNotes\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eModel\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003eHC-SR501\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eOperating Voltage\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e5V DC\u003c\/td\u003e\n\u003ctd\u003eStandard microcontroller voltage\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eStandby Current\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 50µA\u003c\/td\u003e\n\u003ctd\u003e\n\u003cb\u003eUltra-low power\u003c\/b\u003e consumption\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eSensing Angle\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e110 degrees\u003c\/td\u003e\n\u003ctd\u003eWide-angle coverage\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eTrigger Distance\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003eUp to 7 meters\u003c\/td\u003e\n\u003ctd\u003eAdjustable via potentiometer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eTime Delay\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e2.5 seconds (Standard) - 10 seconds\u003c\/td\u003e\n\u003ctd\u003eAdjustable via potentiometer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eBlocking Period\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e200 milliseconds\u003c\/td\u003e\n\u003ctd\u003eEnsures stability between detections\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eTrigger Modes\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003eL (Single) \/ H (Repeat)\u003c\/td\u003e\n\u003ctd\u003eSelected via Jumper Cap\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eOperating Temperature\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e-15°C to +70°C\u003c\/td\u003e\n\u003ctd\u003eWide operational range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eDimensions\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e33 x 25 x 30 mm\u003c\/td\u003e\n\u003ctd\u003eCompact size for projects\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":43714632089751,"sku":"21PS001382","price":29.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/files\/hc-sr501-pir-motion-sensor-module-arduino.jpg?v=1762493894"},{"product_id":"gp2y1010au0f-dust-sensor-for-arduino","title":"GP2Y1010AU0F Fine Dust Sensor with Cable for Arduino","description":"\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003eSharp GP2Y1010AU0F Dust Sensor for Arduino\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eEnhance your air quality monitoring projects with the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eSharp GP2Y1010AU0F Fine Dust Sensor\u003c\/strong\u003e. This compact and reliable sensor detects fine particles in the air using an infrared LED and phototransistor setup, providing accurate and real-time readings of dust concentration.\u003c\/p\u003e\n\u003ch4 class=\"mb-2 mt-4 font-display font-semimedium text-base first:mt-0\"\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\n\u003cstrong\u003ePrecise Air Quality Measurement:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDetect fine particulate matter (PM) in the air. Ideal for monitoring dust levels indoors or in environmental projects.\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\n\u003cstrong\u003eEasy Integration:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe 6-pin connector allows quick connection to Arduino or other microcontroller boards. Includes all necessary components — 220µF capacitor, 150Ω resistor, and connection cable.\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\n\u003cstrong\u003eLow Power Consumption:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eOperates efficiently with a typical current draw of only 20 mA, making it suitable for continuous air quality monitoring systems.\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\n\u003cstrong\u003eVersatile Applications:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eUse it in air purifiers, smart home systems, weather stations, HVAC control, or indoor environmental monitoring.\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\n\u003cstrong\u003eReliable Sharp Quality:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eBacked by Sharp’s proven sensor technology for accurate particle sensing and long-term stability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 class=\"mb-2 mt-4 font-display font-semimedium text-base first:mt-0\"\u003eSpecifications\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eGP2Y1010AU0F\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\n\u003cstrong\u003eOperating Voltage:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e5 V DC\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\n\u003cstrong\u003eOutput Voltage:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e0.5 V (0 µg\/m³) to 4 V (500 µg\/m³)\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\n\u003cstrong\u003ePower Consumption:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eMax 20 mA\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\n\u003cstrong\u003eOutput Type:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAnalog voltage output\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eCompact, lightweight design for easy integration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 class=\"mb-2 mt-4 font-display font-semimedium text-base first:mt-0\"\u003ePackage Includes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e1 × GP2Y1010AU0F Dust Sensor module\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e1 × Connection cable\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e1 × 220µF capacitor\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e1 × 150Ω resistor\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eThis sensor is a perfect choice to measure and improve indoor air quality in your DIY or Arduino-based smart environment projects.\u003c\/p\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":43730134007959,"sku":"21PS001431","price":45.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/files\/gp2y1010au0f-dust-sensor-kit-components.jpg?v=1763451719"},{"product_id":"tds-sensor-water-conductivity-sensor-for-arduino","title":"TDS Water Quality Sensor Module with Waterproof Probe for Arduino","description":"\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eMonitor your water quality in real time with the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eArduino-compatible TDS Sensor Water Conductivity Module\u003c\/strong\u003e. Designed for DIY water monitoring projects, this module measures the Total Dissolved Solids (TDS) in water—an important indicator of purity and cleanliness. Perfect for\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ehome water testing, hydroponic systems, aquariums,\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eand\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eenvironmental experiments\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch4 class=\"mb-2 mt-4 font-display font-semimedium text-base first:mt-0\"\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\n\u003cstrong\u003eWide voltage range (3.3–5.5V)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efor flexible compatibility with Arduino and other microcontrollers.\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\n\u003cstrong\u003eAnalog signal output (0–2.3V)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003esupports both 3.3V and 5V systems.\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\n\u003cstrong\u003eAC signal excitation\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003edesign prevents probe polarization, enhances stability, and extends probe life.\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\n\u003cstrong\u003eWaterproof probe\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eallows for long-term submersion and continuous water quality monitoring.\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\n\u003cstrong\u003ePlug-and-play setup\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efor quick installation and easy integration—no soldering required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 class=\"mb-2 mt-4 font-display font-semimedium text-base first:mt-0\"\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003eSignal Adapter Board\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eInput Voltage: 3.3–5.5V\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eOutput Signal: 0–2.3V (analog)\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eWorking Current: 3–6mA\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eMeasurement Range: 0–1000ppm (TDS)\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eAccuracy: ±10% F.S. (at 25°C)\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eBoard Size: 42 × 32 mm\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eModule Interface: XH2.54-3P\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eElectrode Interface: XH2.54-2P\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003eTDS Probe\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eProbe Count: 2\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eCable Length: 83 cm\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eConnector: XH2.54-2P\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eColor: Black\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eType: Waterproof probe\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 class=\"mb-2 mt-4 font-display font-semimedium text-base first:mt-0\"\u003eApplications\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eHome drinking water testing\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eHydroponic nutrient control\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eAquarium water maintenance\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eResearch, laboratory, and DIY environmental projects\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 class=\"mb-2 mt-4 font-display font-semimedium text-base first:mt-0\"\u003ePackage Includes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e1 × TDS Signal Adapter Board\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e1 × Waterproof TDS Probe\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e1 × Analog Sensor Cable\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":43764891123863,"sku":"","price":49.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/files\/tds-water-quality-sensor-arduino-kit.jpg?v=1763447484"},{"product_id":"am312-infrared-sensor-module-motion-sensor-2-7-12v","title":"AM312 Infrared Sensor Module Motion Sensor 2.7-12V","description":"\u003ch4 data-start=\"177\" data-end=\"255\"\u003e\u003cstrong data-start=\"180\" data-end=\"255\"\u003eAM312 Mini PIR Motion Sensor Module (2.7–12V) | Infrared Body Detection\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp data-start=\"257\" data-end=\"503\"\u003eAdd reliable and ultra-low-power motion detection to your electronics projects with the \u003cstrong data-start=\"345\" data-end=\"377\"\u003eAM312 Mini PIR Sensor Module\u003c\/strong\u003e.\u003cbr data-start=\"378\" data-end=\"381\"\u003eUsing passive infrared (PIR) technology, it detects human presence and movement and outputs a clean digital HIGH signal.\u003c\/p\u003e\n\u003cp data-start=\"505\" data-end=\"676\"\u003eIts wide voltage range \u003cstrong data-start=\"528\" data-end=\"542\"\u003eDC 2.7–12V\u003c\/strong\u003e makes it fully compatible with 3.3V systems such as:\u003cbr data-start=\"595\" data-end=\"598\"\u003e\u003cstrong data-start=\"598\" data-end=\"641\"\u003eESP8266, ESP8285, ESP32, STM32, Arduino\u003c\/strong\u003e, and other microcontroller boards.\u003c\/p\u003e\n\u003chr data-start=\"678\" data-end=\"681\"\u003e\n\u003ch4 data-start=\"683\" data-end=\"700\"\u003e⭐ \u003cstrong data-start=\"688\" data-end=\"700\"\u003eFeatures\u003c\/strong\u003e\n\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli data-start=\"704\" data-end=\"827\"\u003e\n\u003cstrong data-start=\"704\" data-end=\"747\"\u003eHigh sensitivity \u0026amp; reliable performance\u003c\/strong\u003e\u003cbr data-start=\"747\" data-end=\"750\"\u003eBuilt with digital signal processing to reduce noise and improve stability.\u003c\/li\u003e\n\u003cli data-start=\"831\" data-end=\"930\"\u003e\n\u003cstrong data-start=\"831\" data-end=\"862\"\u003eUltra-low power consumption\u003c\/strong\u003e\u003cbr data-start=\"862\" data-end=\"865\"\u003eStatic current \u0026lt;0.1mA — ideal for battery-powered applications.\u003c\/li\u003e\n\u003cli data-start=\"934\" data-end=\"1032\"\u003e\n\u003cstrong data-start=\"934\" data-end=\"968\"\u003eMiniature size: only 10 × 8 mm\u003c\/strong\u003e\u003cbr data-start=\"968\" data-end=\"971\"\u003eSmall lens design, perfect for compact or embedded devices.\u003c\/li\u003e\n\u003cli data-start=\"1036\" data-end=\"1221\"\u003e\n\u003cstrong data-start=\"1036\" data-end=\"1083\"\u003eRepeatable trigger mode (Auto-Extend Delay)\u003c\/strong\u003e\u003cbr data-start=\"1083\" data-end=\"1086\"\u003eWhen motion is detected, the HIGH output stays active.\u003cbr data-start=\"1142\" data-end=\"1145\"\u003eEach detected movement resets the delay timer, preventing false shutdowns.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1223\" data-end=\"1226\"\u003e\n\u003ch4 data-start=\"1228\" data-end=\"1262\"\u003e🔧 \u003cstrong data-start=\"1234\" data-end=\"1262\"\u003eTechnical Specifications\u003c\/strong\u003e\n\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli data-start=\"1266\" data-end=\"1299\"\u003e\n\u003cstrong data-start=\"1266\" data-end=\"1286\"\u003eWorking voltage:\u003c\/strong\u003e DC 2.7–12V\u003c\/li\u003e\n\u003cli data-start=\"1302\" data-end=\"1330\"\u003e\n\u003cstrong data-start=\"1302\" data-end=\"1321\"\u003eStatic current:\u003c\/strong\u003e \u0026lt;0.1mA\u003c\/li\u003e\n\u003cli data-start=\"1333\" data-end=\"1361\"\u003e\n\u003cstrong data-start=\"1333\" data-end=\"1348\"\u003eDelay time:\u003c\/strong\u003e ~2 seconds\u003c\/li\u003e\n\u003cli data-start=\"1364\" data-end=\"1395\"\u003e\n\u003cstrong data-start=\"1364\" data-end=\"1382\"\u003eBlocking time:\u003c\/strong\u003e ~2 seconds\u003c\/li\u003e\n\u003cli data-start=\"1398\" data-end=\"1436\"\u003e\n\u003cstrong data-start=\"1398\" data-end=\"1415\"\u003eTrigger mode:\u003c\/strong\u003e Repeatable trigger\u003c\/li\u003e\n\u003cli data-start=\"1439\" data-end=\"1509\"\u003e\n\u003cstrong data-start=\"1439\" data-end=\"1459\"\u003eDetection range:\u003c\/strong\u003e 100° cone angle, 3–5 meters (depending on lens)\u003c\/li\u003e\n\u003cli data-start=\"1512\" data-end=\"1555\"\u003e\n\u003cstrong data-start=\"1512\" data-end=\"1538\"\u003eOperating temperature:\u003c\/strong\u003e -20°C to +60°C\u003c\/li\u003e\n\u003cli data-start=\"1558\" data-end=\"1583\"\u003e\n\u003cstrong data-start=\"1558\" data-end=\"1571\"\u003ePCB size:\u003c\/strong\u003e 10 × 8 mm\u003c\/li\u003e\n\u003cli data-start=\"1586\" data-end=\"1616\"\u003e\n\u003cstrong data-start=\"1586\" data-end=\"1600\"\u003eLens type:\u003c\/strong\u003e Mini PIR lens\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1618\" data-end=\"1621\"\u003e\n\u003ch4 data-start=\"1623\" data-end=\"1645\"\u003e🏠 \u003cstrong data-start=\"1629\" data-end=\"1645\"\u003eApplications\u003c\/strong\u003e\n\u003c\/h4\u003e\n\u003cp data-start=\"1647\" data-end=\"1681\"\u003eThe AM312 PIR module is ideal for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"1685\" data-end=\"1710\"\u003eMotion-activated lights\u003c\/li\u003e\n\u003cli data-start=\"1713\" data-end=\"1736\"\u003eSmart home automation\u003c\/li\u003e\n\u003cli data-start=\"1739\" data-end=\"1767\"\u003eSecurity and alarm systems\u003c\/li\u003e\n\u003cli data-start=\"1770\" data-end=\"1799\"\u003eAuto-switch control systems\u003c\/li\u003e\n\u003cli data-start=\"1802\" data-end=\"1830\"\u003eLow-power sensing projects\u003c\/li\u003e\n\u003cli data-start=\"1833\" data-end=\"1864\"\u003eArduino \/ ESP DIY electronics\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":43819783553175,"sku":"21IR000010","price":20.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/files\/AM312-mini-PIR-motion-sensor-module-GND-OUT-VCC-pins.png?v=1763445574"},{"product_id":"ttp229-16-channel-digital-capacitive-switch-touch-sensor-keypad-module","title":"TTP229 16-Channel Capacitive Touch Sensor Keypad Module for Arduino","description":"\u003cp data-end=\"371\" data-start=\"272\"\u003e\u003cstrong data-end=\"371\" data-start=\"272\"\u003eTTP229 16-Channel Capacitive Touch Sensor Module — Reliable, Fast \u0026amp; Perfect for DIY Electronics\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-end=\"624\" data-start=\"373\"\u003eUpgrade your next Arduino or microcontroller project with the \u003cstrong data-end=\"487\" data-start=\"435\"\u003eTTP229 16-Channel Capacitive Touch Sensor Module\u003c\/strong\u003e. This module replaces traditional push buttons with highly responsive touch pads, making your design cleaner, quieter, and more durable.\u003c\/p\u003e\n\u003cp data-end=\"945\" data-start=\"626\"\u003eFeaturing the onboard \u003cstrong data-end=\"675\" data-start=\"648\"\u003eTTP229 touch-sensing IC\u003c\/strong\u003e, this module provides \u003cstrong data-end=\"738\" data-start=\"698\"\u003e16 independent capacitive touch keys\u003c\/strong\u003e, stable performance, and wide voltage compatibility. It is ideal for DIY electronics, education projects, access control panels, smart home control pads, and any application that requires multi-touch input.\u003c\/p\u003e\n\u003ch4 data-end=\"967\" data-start=\"947\"\u003e\u003cstrong data-end=\"967\" data-start=\"951\"\u003eKey Features\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli data-end=\"1085\" data-start=\"970\"\u003e\n\u003cstrong data-end=\"1005\" data-start=\"970\"\u003e16-Key Capacitive Touch Sensing\u003c\/strong\u003e\u003cbr data-end=\"1008\" data-start=\"1005\"\u003ePowered by the TTP229 IC for high sensitivity and accurate touch detection.\u003c\/li\u003e\n\u003cli data-end=\"1158\" data-start=\"1089\"\u003e\n\u003cstrong data-end=\"1120\" data-start=\"1089\"\u003eOnboard Power Indicator LED\u003c\/strong\u003e\u003cbr data-end=\"1123\" data-start=\"1120\"\u003eShows working status at a glance.\u003c\/li\u003e\n\u003cli data-end=\"1276\" data-start=\"1162\"\u003e\n\u003cstrong data-end=\"1200\" data-start=\"1162\"\u003eWide Operating Voltage (2.4V–5.5V)\u003c\/strong\u003e\u003cbr data-end=\"1203\" data-start=\"1200\"\u003eCompatible with Arduino, ESP32, ESP8266, Raspberry Pi, STM32, and more.\u003c\/li\u003e\n\u003cli data-end=\"1393\" data-start=\"1280\"\u003e\n\u003cstrong data-end=\"1309\" data-start=\"1280\"\u003eConfigurable Output Modes\u003c\/strong\u003e\u003cbr data-end=\"1312\" data-start=\"1309\"\u003eChoose key output mode, long-press behaviour, fast reaction, or low-power mode.\u003c\/li\u003e\n\u003cli data-end=\"1497\" data-start=\"1397\"\u003e\n\u003cstrong data-end=\"1419\" data-start=\"1397\"\u003eCompact PCB Design\u003c\/strong\u003e\u003cbr data-end=\"1422\" data-start=\"1419\"\u003ePCB size: \u003cstrong data-end=\"1452\" data-start=\"1434\"\u003e49.3 × 64.5 mm\u003c\/strong\u003e — fits easily into panels or DIY enclosures.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 data-end=\"1518\" data-start=\"1499\"\u003e\u003cstrong data-end=\"1518\" data-start=\"1503\"\u003ePerfect For\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli data-end=\"1557\" data-start=\"1521\"\u003eArduino \u0026amp; microcontroller projects\u003c\/li\u003e\n\u003cli data-end=\"1579\" data-start=\"1560\"\u003eKeypad interfaces\u003c\/li\u003e\n\u003cli data-end=\"1606\" data-start=\"1582\"\u003eSmart home controllers\u003c\/li\u003e\n\u003cli data-end=\"1645\" data-start=\"1609\"\u003eSecurity or access control systems\u003c\/li\u003e\n\u003cli data-end=\"1682\" data-start=\"1648\"\u003eDIY electronics \u0026amp; maker projects\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!----\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":44226072903831,"sku":"21PS001965","price":20.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/files\/TTP229-16-Channel-Capacitive-Touch-Keypad-Module-Front-View-Arduino.jpg?v=1763442015"},{"product_id":"3-5v-water-vapor-sensor-module-for-arduino","title":"Water Vapor Sensor Module Humidity Rain Detector 3.3V\/5V for Arduino","description":"\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eEnhance your electronics projects with the Water Vapor Sensor Module for Arduino. This sensor accurately detects the presence of water using humidity measurements, making it ideal for rain, mist, or water vapor detection. Featuring a petal-shaped detection area, it increases output voltage when water is present. Perfect for smart weather stations and environmental monitoring, it operates on 3.3V or 5V and outputs analog signals for easy integration with Arduino. The module supports 2.54mm pin headers and secure mounting via dual screw holes.\u003cspan class=\"citation-nbsp\"\u003e\u003c\/span\u003e\u003cspan class=\"citation inline\" rel=\"nofollow noopener\" data-state=\"closed\"\u003e\u003ca rel=\"noopener\" class=\"inline\" href=\"https:\/\/scccltd.com\/products\/3-5v-water-vapor-sensor-module-for-arduino\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003ePower Supply: DC 3.3V \/ 5V\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eOutput: Analog signal\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eDetection: Rainwater, mist, water vapor\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eEasy installation with dual screws\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eG (GND): Power ground\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eV (VCC): Power positive\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eS: Analog signal\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eCompatible with Arduino projects\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!----\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":44226345074839,"sku":"21PS002321","price":10.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/files\/water-vapor-sensor-module-arduino-dc5v.jpg?v=1763366858"},{"product_id":"1605-ultrasonic-ranging-module-iic-for-arduino","title":"RCWL-1605 Ultrasonic Ranging Sensor Module | HC-SR04 Compatible","description":"\u003cp data-start=\"270\" data-end=\"620\"\u003eThe \u003cstrong data-start=\"274\" data-end=\"313\"\u003eRCWL-1605 Ultrasonic Ranging Module\u003c\/strong\u003e is a compact, low-power, and highly versatile distance-measuring sensor designed for Arduino and other microcontroller platforms. Featuring a transceiver-integrated open ultrasonic design, it offers \u003cstrong data-start=\"513\" data-end=\"554\"\u003efull HC-SR04 compatibility by default\u003c\/strong\u003e, making it an easy drop-in replacement with enhanced performance.\u003c\/p\u003e\n\u003cp data-start=\"622\" data-end=\"1021\"\u003ePowered by the advanced \u003cstrong data-start=\"646\" data-end=\"672\"\u003eRCWL-9625\/9623 chipset\u003c\/strong\u003e, the module provides a wide \u003cstrong data-start=\"701\" data-end=\"729\"\u003e2.8–5.5V operating range\u003c\/strong\u003e, simplified peripheral circuitry, and multiple communication options, including \u003cstrong data-start=\"810\" data-end=\"841\"\u003eGPIO, UART, I²C, and 1-Wire\u003c\/strong\u003e. With a \u003cstrong data-start=\"850\" data-end=\"881\"\u003e25cm ultra-small blind zone\u003c\/strong\u003e, \u003cstrong data-start=\"883\" data-end=\"919\"\u003e4.5m typical max detection range\u003c\/strong\u003e, and \u003cstrong data-start=\"925\" data-end=\"953\"\u003eonly 2mA working current\u003c\/strong\u003e, it is suitable for both battery-powered and embedded applications.\u003c\/p\u003e\n\u003chr data-start=\"1023\" data-end=\"1026\"\u003e\n\u003ch4 data-start=\"1028\" data-end=\"1048\"\u003e\u003cstrong data-start=\"1032\" data-end=\"1048\"\u003eKey Features\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli data-start=\"1051\" data-end=\"1110\"\u003e\n\u003cstrong data-start=\"1051\" data-end=\"1082\"\u003e25cm ultra-short blind zone\u003c\/strong\u003e for close-range precision\u003c\/li\u003e\n\u003cli data-start=\"1113\" data-end=\"1151\"\u003e\u003cstrong data-start=\"1113\" data-end=\"1149\"\u003eUp to 4.5m typical maximum range\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-start=\"1154\" data-end=\"1213\"\u003e\n\u003cstrong data-start=\"1154\" data-end=\"1185\"\u003eUltra-low power consumption\u003c\/strong\u003e: only 2mA working current\u003c\/li\u003e\n\u003cli data-start=\"1216\" data-end=\"1255\"\u003e\n\u003cstrong data-start=\"1216\" data-end=\"1242\"\u003eWide operating voltage\u003c\/strong\u003e: 2.8V–5.5V\u003c\/li\u003e\n\u003cli data-start=\"1258\" data-end=\"1293\"\u003e\n\u003cstrong data-start=\"1258\" data-end=\"1290\"\u003eMultiple communication modes\u003c\/strong\u003e:\n\u003cul\u003e\n\u003cli data-start=\"1298\" data-end=\"1338\"\u003eGPIO (HC-SR04 compatible default mode)\u003c\/li\u003e\n\u003cli data-start=\"1343\" data-end=\"1349\"\u003eUART\u003c\/li\u003e\n\u003cli data-start=\"1354\" data-end=\"1359\"\u003eI²C\u003c\/li\u003e\n\u003cli data-start=\"1364\" data-end=\"1372\"\u003e1-Wire\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1375\" data-end=\"1451\"\u003eBuilt-in \u003cstrong data-start=\"1384\" data-end=\"1409\"\u003eRCWL-9625 \/ RCWL-9623\u003c\/strong\u003e professional ultrasonic processing chip\u003c\/li\u003e\n\u003cli data-start=\"1454\" data-end=\"1483\"\u003e\u003cstrong data-start=\"1454\" data-end=\"1481\"\u003e450ms measurement cycle\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-start=\"1486\" data-end=\"1545\"\u003eCompact, transceiver-integrated open ultrasonic structure\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1547\" data-end=\"1550\"\u003e\n\u003ch4 data-start=\"1552\" data-end=\"1580\"\u003e\u003cstrong data-start=\"1556\" data-end=\"1580\"\u003eTypical Applications\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli data-start=\"1583\" data-end=\"1612\"\u003eRobotics obstacle avoidance\u003c\/li\u003e\n\u003cli data-start=\"1615\" data-end=\"1642\"\u003eSmart toys and automation\u003c\/li\u003e\n\u003cli data-start=\"1645\" data-end=\"1685\"\u003eWater level \/ liquid level measurement\u003c\/li\u003e\n\u003cli data-start=\"1688\" data-end=\"1737\"\u003eIndustrial and home automation distance sensing\u003c\/li\u003e\n\u003cli data-start=\"1740\" data-end=\"1807\"\u003eGeneral purpose ranging projects for Arduino, ESP32, Raspberry Pi\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!----\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":44226498723991,"sku":"21PS002174","price":19.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/files\/rcwl-1605-ultrasonic-sensor-iic-module-front.jpg?v=1763198944"},{"product_id":"ttp223-diy-touch-button-module","title":"TTP223 Capacitive Touch Sensor Module | Single Channel DIY Switch","description":"\u003ch2 data-path-to-node=\"6\"\u003eRevolutionize Your Control Interfaces with Touch Technology\u003c\/h2\u003e\n\u003cp data-path-to-node=\"7\"\u003ePhysical buttons wear out, collect dust, and often limit the sleek aesthetic of modern device design. The \u003cb data-path-to-node=\"7\" data-index-in-node=\"106\"\u003eTTP223 Touch Button Module\u003c\/b\u003e solves this by offering a highly sensitive, durable capacitive touch interface. Whether you are prototyping a smart home control panel or building an interactive STEM educational kit, this module delivers instantaneous, bounce-free response.\u003c\/p\u003e\n\u003cp data-path-to-node=\"7\"\u003e \u003c\/p\u003e\n\u003ch3 data-path-to-node=\"8\"\u003eHighly Customizable Trigger Modes\u003c\/h3\u003e\n\u003cp data-path-to-node=\"9\"\u003eFlexibility is at the core of this module. By simply bridging the A and B solder pads, you can configure the exact output behavior you need:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-path-to-node=\"10,0,0\"\u003e\n\u003cb data-path-to-node=\"10,0,0\" data-index-in-node=\"0\"\u003eJog Mode (Momentary):\u003c\/b\u003e The output changes only while your finger is on the sensor.\u003c\/li\u003e\n\u003cli data-path-to-node=\"10,1,0\"\u003e\n\u003cb data-path-to-node=\"10,1,0\" data-index-in-node=\"0\"\u003eSelf-Locking Mode (Toggle):\u003c\/b\u003e One touch turns it on, the next touch turns it off.\u003c\/li\u003e\n\u003cli data-path-to-node=\"10,2,0\"\u003e\n\u003cb data-path-to-node=\"10,2,0\" data-index-in-node=\"0\"\u003eActive High\/Low:\u003c\/b\u003e Configure the baseline TTL output to suit your specific microcontroller logic.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3 data-path-to-node=\"11\"\u003eUltra-Compact \u0026amp; Easy to Integrate\u003c\/h3\u003e\n\u003cp data-path-to-node=\"12\"\u003eMeasuring just 15mm x 11mm, this sensor can be hidden behind non-metallic panels (like glass, plastic, or acrylic) up to a few millimeters thick, allowing for completely seamless, waterproof designs. It operates on a wide voltage range of 2.5V to 5.5V, making it universally compatible with standard 3.3V and 5V logic systems.\u003c\/p\u003e\n\u003c!----\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":44226669543575,"sku":"","price":10.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/files\/ttp223-touch-sensor-front-back-view.jpg?v=1775588291"},{"product_id":"rfp-thin-film-pressure-sensor-voltage-conversion-module","title":"RFP Thin Film Pressure Sensor Voltage Conversion Module","description":"\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003eRFP Thin Film Pressure Sensor Voltage Conversion Module (FSR4 Series Compatible)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eThis voltage conversion module is designed specifically for use with RFP thin film pressure sensors, including the FSR4 series. It converts the resistance signal from your sensor into a stable analog voltage signal (0-5V) or digital high\/low output, making it ideal for integration with microcontrollers and development boards.\u003c\/p\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\n\u003cstrong\u003ePrecise Signal Conversion:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eEfficiently transforms sensor resistance into voltage or digital signals.\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\n\u003cstrong\u003eWide Compatibility:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eSupports both 5V and 3.3V microcontroller logic.\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\n\u003cstrong\u003eDual Output:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eProvides both analog (AO) and digital (DO) outputs for flexible sensor interfacing.\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\n\u003cstrong\u003eCompact Design:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eModule size: 1.4cm x 3.2cm (±1mm), easy to fit into various project enclosures.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003eUsage Instructions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eConnect VCC to a 3.3V or 5V power supply.\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eConnect GND to ground.\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eAO provides a continuous analog voltage output (0-5V) proportional to applied pressure.\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eDO outputs a high or low logic level based on the pressure threshold set by the onboard potentiometer.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003eTypical Applications:\u003c\/strong\u003e\u003cbr\u003eElectronics prototyping, pressure-sensitive controls, robotics, and touch detection circuits.\u003c\/p\u003e\n\u003c!----\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":44229314740375,"sku":"21PS001900","price":35.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/files\/rfp-thin-film-pressure-sensor-voltage-module.jpg?v=1763194266"},{"product_id":"tcrt5000-tracking-module-for-arduino","title":"TCRT5000 IR Infrared Line Tracking Sensor Module for Arduino","description":"\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003eTCRT5000 IR Line Tracking and Obstacle Detection Module\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eThe TCRT5000 tracking module uses an infrared reflection sensor to detect lines, obstacles, and reflective surfaces. It’s a versatile sensor widely used in robotics and automation projects, offering high accuracy and simple digital output ideal for microcontroller applications such as Arduino, AVR, and PIC.\u003c\/p\u003e\n\u003ch4 class=\"mb-2 mt-4 font-display font-semimedium text-base first:mt-0\"\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eUses high-quality TCRT5000 infrared reflection sensor.\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eDetects black and white lines or object presence within 1mm–25mm.\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eProvides a digital output signal (0 or 1) for easy integration.\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eFixed bolt holes allow stable installation on robots or chassis.\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eCompact PCB design (3.5cm × 1cm) with lightweight build (4.5g).\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eWorks with multiple platforms: Arduino, AVR, ARM, and PIC.\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eOperating voltage: 5V DC.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 class=\"mb-2 mt-4 font-display font-semimedium text-base first:mt-0\"\u003eWorking Principle\u003c\/h4\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eThe TCRT5000 emits continuous infrared light. When an object or reflective surface is detected, the reflected infrared beam is captured by the receiver, producing a high-level output signal. If no object is detected or the reflection is weak, the output remains low.\u003c\/p\u003e\n\u003ch4 class=\"mb-2 mt-4 font-display font-semimedium text-base first:mt-0\"\u003eWiring\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\n\u003cstrong\u003eVCC\u003c\/strong\u003e: Connect to 5V power supply.\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\n\u003cstrong\u003eGND\u003c\/strong\u003e: Connect to ground.\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\n\u003cstrong\u003eOUT\u003c\/strong\u003e: Digital signal output (0 = no detection, 1 = detection).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 class=\"mb-2 mt-4 font-display font-semimedium text-base first:mt-0\"\u003eApplications\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eLine tracking for Arduino robot cars\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eObstacle detection systems\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eSpeed detection for rotating objects or meters\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eFax machine or paper detection mechanisms\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003ePackage Includes:\u003c\/strong\u003e\u003cbr\u003e1 × TCRT5000 IR Infrared Tracking and Obstacle Avoidance Module\u003c\/p\u003e\n\u003c!----\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":44230897270935,"sku":"21PS002203","price":20.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/files\/tcrt5000-ir-line-tracking-modul.jpg?v=1763188951"},{"product_id":"ads1115-adc-analog-to-digital-module","title":"16-Bit I2C ADS1115 ADC Module - 4-Ch Analog to Digital Converter","description":"\u003cp\u003eUnlock precise analog-to-digital conversion with the 16-bit ADS1115 I2C ADC Module. Featuring 4 channels and a built-in Programmable Gain Amplifier (PGA), this compact module is ideal for a wide range of electronics projects and applications requiring high accuracy.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eDetailed Product Description:\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe ADS1115 is a versatile and high-resolution 16-bit analog-to-digital converter (ADC) module designed for robust performance in various measurement tasks. Communicating via the widely used I2C interface, it offers seamless integration with microcontrollers like Arduino, Raspberry Pi, and ESP32.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eKey Specifications \u0026amp; Features:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eHigh Resolution:\u003c\/b\u003e True 16-Bit ADC for superior accuracy in your measurements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFlexible Channels:\u003c\/b\u003e Configure as 4 single-ended input channels (AN0, AN1, AN2, AN3) or 2 differential inputs, providing versatility for different sensor setups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWide Input Voltage Range:\u003c\/b\u003e Operates with a supply voltage (VDD) from 2.0V to 5.5V, making it compatible with common development boards.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eProgrammable Gain Amplifier (PGA):\u003c\/b\u003e Built-in PGA allows for seven programmable input ranges:\n\u003cul\u003e\n\u003cli\u003e\u003cspan class=\"math-inline\"\u003e\u003cspan class=\"katex\"\u003e\u003cspan class=\"katex-html\" aria-hidden=\"true\"\u003e\u003cspan class=\"base\"\u003e\u003cspan class=\"strut\"\u003e\u003c\/span\u003e\u003cspan class=\"mord\"\u003e±\u003c\/span\u003e\u003cspan class=\"mord\"\u003e0.256\u003c\/span\u003e\u003cspan class=\"mord text\"\u003e\u003cspan class=\"mord\"\u003eV\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"math-inline\"\u003e\u003cspan class=\"katex\"\u003e\u003cspan class=\"katex-html\" aria-hidden=\"true\"\u003e\u003cspan class=\"base\"\u003e\u003cspan class=\"strut\"\u003e\u003c\/span\u003e\u003cspan class=\"mord\"\u003e±\u003c\/span\u003e\u003cspan class=\"mord\"\u003e0.512\u003c\/span\u003e\u003cspan class=\"mord text\"\u003e\u003cspan class=\"mord\"\u003eV\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"math-inline\"\u003e\u003cspan class=\"katex\"\u003e\u003cspan class=\"katex-html\" aria-hidden=\"true\"\u003e\u003cspan class=\"base\"\u003e\u003cspan class=\"strut\"\u003e\u003c\/span\u003e\u003cspan class=\"mord\"\u003e±\u003c\/span\u003e\u003cspan class=\"mord\"\u003e1.024\u003c\/span\u003e\u003cspan class=\"mord text\"\u003e\u003cspan class=\"mord\"\u003eV\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"math-inline\"\u003e\u003cspan class=\"katex\"\u003e\u003cspan class=\"katex-html\" aria-hidden=\"true\"\u003e\u003cspan class=\"base\"\u003e\u003cspan class=\"strut\"\u003e\u003c\/span\u003e\u003cspan class=\"mord\"\u003e±\u003c\/span\u003e\u003cspan class=\"mord\"\u003e2.048\u003c\/span\u003e\u003cspan class=\"mord text\"\u003e\u003cspan class=\"mord\"\u003eV\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"math-inline\"\u003e\u003cspan class=\"katex\"\u003e\u003cspan class=\"katex-html\" aria-hidden=\"true\"\u003e\u003cspan class=\"base\"\u003e\u003cspan class=\"strut\"\u003e\u003c\/span\u003e\u003cspan class=\"mord\"\u003e±\u003c\/span\u003e\u003cspan class=\"mord\"\u003e4.096\u003c\/span\u003e\u003cspan class=\"mord text\"\u003e\u003cspan class=\"mord\"\u003eV\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"math-inline\"\u003e\u003cspan class=\"katex\"\u003e\u003cspan class=\"katex-html\" aria-hidden=\"true\"\u003e\u003cspan class=\"base\"\u003e\u003cspan class=\"strut\"\u003e\u003c\/span\u003e\u003cspan class=\"mord\"\u003e±\u003c\/span\u003e\u003cspan class=\"mord\"\u003e6.144\u003c\/span\u003e\u003cspan class=\"mord text\"\u003e\u003cspan class=\"mord\"\u003eV\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e This feature is crucial for accurately reading various sensor outputs, from small millivolt signals to larger voltage inputs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAdjustable Data Rate:\u003c\/b\u003e Choose from 8 samples per second (sps) up to 860 sps to balance resolution and speed for your application.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePower Efficient Modes:\u003c\/b\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eContinuous Conversion Mode:\u003c\/b\u003e Consumes only \u003cspan class=\"math-inline\"\u003e\u003cspan class=\"katex\"\u003e\u003cspan class=\"katex-html\" aria-hidden=\"true\"\u003e\u003cspan class=\"base\"\u003e\u003cspan class=\"strut\"\u003e\u003c\/span\u003e\u003cspan class=\"mord\"\u003e150\u003c\/span\u003e\u003cspan class=\"mord mathnormal\"\u003eμ\u003c\/span\u003e\u003cspan class=\"mord text\"\u003e\u003cspan class=\"mord\"\u003eA\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e for ongoing measurements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSingle-Shot Mode:\u003c\/b\u003e Automatically shuts down after conversion, reducing power consumption significantly for intermittent readings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eConfigurable I2C Address:\u003c\/b\u003e Features 7-bit I2C addresses (0x48 to 0x4B), allowing multiple ADS1115 modules on the same I2C bus.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCompact Size:\u003c\/b\u003e At just \u003cspan class=\"math-inline\"\u003e\u003cspan class=\"katex\"\u003e\u003cspan class=\"katex-html\" aria-hidden=\"true\"\u003e\u003cspan class=\"base\"\u003e\u003cspan class=\"strut\"\u003e\u003c\/span\u003e\u003cspan class=\"mord\"\u003e18\u003c\/span\u003e\u003cspan class=\"mord text\"\u003e\u003cspan class=\"mord\"\u003emm\u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"mspace\"\u003e\u003c\/span\u003e\u003cspan class=\"mbin\"\u003e×\u003c\/span\u003e\u003cspan class=\"mspace\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"base\"\u003e\u003cspan class=\"strut\"\u003e\u003c\/span\u003e\u003cspan class=\"mord\"\u003e28\u003c\/span\u003e\u003cspan class=\"mord text\"\u003e\u003cspan class=\"mord\"\u003emm\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e, it's perfect for space-constrained projects.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eIdeal Applications:\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe ADS1115 ADC module is an excellent choice for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003ePortable Instrumentation:\u003c\/b\u003e Build accurate, handheld measurement devices.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eConsumer Goods:\u003c\/b\u003e Integrate precision sensing into smart devices.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eBattery Monitoring:\u003c\/b\u003e Precisely monitor battery voltage levels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTemperature Measurement:\u003c\/b\u003e Connect various analog temperature sensors for accurate readings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFactory Automation and Process Controls:\u003c\/b\u003e Essential for industrial sensing and control systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDIY Electronics \u0026amp; Prototyping:\u003c\/b\u003e A must-have for Arduino, Raspberry Pi, ESP32, and other microcontroller projects.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!----\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":44352335511703,"sku":"","price":49.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/files\/ads1115-adc-module-with-headers.jpg?v=1755529759"},{"product_id":"gy-31-tcs3200-detector-module-color-recognition-sensor","title":"GY-31 TCS3200 Color Sensor Module - Accurate Color Recognition","description":"\u003cp\u003e\u003cb\u003eDiscover the World of Color with the GY-31 TCS3200 Color Sensor Module\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eUnlock a new dimension of projects with the GY-31 TCS3200 Color Sensor Module. This high-performance module, featuring the imported TCS3200 chip, is engineered for precise color detection and recognition. Whether you're building a sorting robot, a color-matching system, or an ambient light project, the GY-31 TCS3200 offers reliable and easy-to-integrate functionality.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eKey Features:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eAdvanced TCS3200 Chip:\u003c\/b\u003e Utilizes the robust TCS3200 chip for superior color sensing capabilities, ensuring accurate and consistent readings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOptimal Power Supply:\u003c\/b\u003e Operates efficiently with a 3-5V power supply, making it compatible with a wide range of microcontrollers like Arduino, ESP32, and Raspberry Pi.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eIntegrated White LEDs:\u003c\/b\u003e Equipped with bright, white LEDs that can be controlled (turned on\/off), providing consistent illumination for precise color detection, even in varying ambient light conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDirect Microcontroller Connectivity:\u003c\/b\u003e Designed for seamless integration, allowing direct connection to your favorite microcontrollers without complex external circuitry.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eStatic Object Color Detection:\u003c\/b\u003e Ideal for static detection of object colors, providing reliable data for your automated systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCompact \u0026amp; Versatile:\u003c\/b\u003e With a compact size of 34mm x 34mm, this module is perfect for projects where space is a consideration.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eColor sorting machines\u003c\/li\u003e\n\u003cli\u003eRobotics (line following, object identification)\u003c\/li\u003e\n\u003cli\u003eAmbient lighting control\u003c\/li\u003e\n\u003cli\u003eColor calibration systems\u003c\/li\u003e\n\u003cli\u003eEducational electronics projects\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eTake your projects to the next level with the GY-31 TCS3200 Color Sensor Module – your reliable partner for accurate color recognition.\u003c\/p\u003e\n\u003c!----\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":44355813572759,"sku":"21CM000325","price":59.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/files\/GY-31-TCS3200-Color-Sensor-Module-Front-Angle.jpg?v=1776500170"},{"product_id":"optocoupler-speed-sensor-module-for-arduino","title":"Slot Type IR Optocoupler Speed Sensor LM393 Module for Arduino 3.3V-5V","description":"\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eThe Slot Type Infrared Optocoupler Speed Sensor Module with LM393 comparator is designed for precise motor speed detection, pulse counting, and position control. Featuring the high-sensitivity ITR9606 optocoupler, it combines an infrared emitter and an NPN phototransistor in a 5 mm slot structure to ensure accurate signal response.\u003c\/p\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eThis module operates on 3.3V–5V and outputs a clean digital signal (DO) ideal for microcontrollers like Arduino, Raspberry Pi, or other development boards. The onboard LM393 comparator ensures stable performance, clear signal waveform, and drive capability above 15mA. Convenient M3 mounting holes make installation easy and flexible for robotics or automation projects.\u003c\/p\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eWhen no object blocks the slot, the DO output stays low, and the indicator LED remains on. When an object interrupts the infrared beam, the output switches high and the LED turns off — allowing reliable object detection, rotation count measurement, or simple on\/off triggering for relays and buzzers.\u003c\/p\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eEquipped with ITR9606 infrared slot optocoupler\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eLM393 wide-voltage comparator for stable signal output\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eOutput: Digital signal (DO) only, AO pin inactive\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eOperating voltage: 3.3V–5V\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eOutput current capability \u0026gt;15mA\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eBuilt-in power and output indicator LEDs\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eM3 mounting holes for easy installation\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eIdeal for motor speed measurement, object counting, position sensing, and automation control\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eMotor speed detection and encoder projects\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003ePulse and position sensing\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eDIY robotics and Arduino-based automation\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eRelay or buzzer triggering for warning systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003eUsage Note:\u003c\/strong\u003e\u003cbr\u003eAlways connect power correctly; reversing polarity may damage the module. For Raspberry Pi users, configure GPIO pins as input mode before use. Other MCUs (e.g., ARM, STM32, ESP32) must also use input\/receive mode for proper function. The 51-series MCUs can be used directly without extra configuration.\u003c\/p\u003e\n\u003c!----\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":44496237002903,"sku":"21PS001245","price":10.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/files\/slot-optocoupler-speed-sensor-arduino-3d-view.jpg?v=1763022627"},{"product_id":"xd-58c-pulse-sensor-for-arduino","title":"XD-58C Pulse Sensor Heart Rate Detection Module for Arduino","description":"\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eXD-58C Pulse Sensor\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a compact, high-performance\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eheart rate detection module\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003edesigned for Arduino and other microcontroller platforms. It uses optical sensing technology combined with an integrated amplifier and noise reduction circuit to provide accurate heart rate measurement.\u003c\/p\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eSimply attach the sensor to your\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003efinger or earlobe\u003c\/strong\u003e, connect it to your Arduino board, and monitor your pulse through your project or app. Ideal for\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003estudents, athletes, developers, artists, and creators\u003c\/strong\u003e, the XD-58C is perfect for building interactive projects, fitness trackers, digital health monitors, or wearable systems.\u003c\/p\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eIt also supports\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eopen-source applications\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ethat visualize real-time heart rate data on a graph, making it an excellent educational and prototyping tool.\u003c\/p\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eOptical heart rate sensor with built-in amplifier and noise filter\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eCompatible with Arduino and open-source electronics platforms\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eSimple clip-on design for finger or earlobe measurement\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eReal-time pulse graph display via open-source software\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003ePower supply: 3V to 5V\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eArduino learning and experiments\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eFitness and health monitoring projects\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eBiofeedback and interactive installations\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eDIY wearables or smart devices\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!----\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":44498244173975,"sku":"","price":49.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/files\/xd-58c-pulse-sensor-arduino-kit.jpg?v=1763011909"},{"product_id":"ky-039-finger-heartbeat-heart-rate-detector-for-arduino","title":"KY-039 Finger Heartbeat Pulse Sensor Module for Arduino","description":"\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eMonitor your heart rate easily with the KY-039 Finger Heartbeat Sensor Module, designed for Arduino beginners and makers. This non-invasive heart rate detector measures pulse signals by using an infrared LED and phototransistor to sense blood flow changes through your fingertip. Simply connect it to your Arduino UNO board using jumper wires, and visualize real-time heartbeat data through the Serial Monitor or Serial Plotter in the Arduino IDE.\u003c\/p\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eNon-invasive pulse detection – no direct skin contact required.\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eHighly sensitive sensor for accurate heartbeat measurement.\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eAnalog signal output that can be read directly by Arduino.\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eUses infrared LED and phototransistor for precise detection.\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eSimple three-pin interface: VCC (3.3V–5V), GND, and Signal (A0).\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eCompact and easy to integrate into DIY health monitoring projects.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003eConnection Guide:\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eConnect\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eGND\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eto Arduino\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eGND\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eConnect\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eVCC\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eto Arduino\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e5V\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eConnect\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eSignal (S)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eto Arduino\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eA0\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003epin.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003eHow It Works:\u003c\/strong\u003e\u003cbr\u003eWhen a finger is placed between the infrared LED and phototransistor, changes in blood flow during each heartbeat alter the intensity of transmitted light. The sensor converts this variation into an analog signal that represents your pulse waveform.\u003c\/p\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003ePackage Includes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e1 x KY-039 Finger Heartbeat Sensor Module\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!----\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":44498512674967,"sku":"21PS001310","price":35.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/files\/diy-heart-rate-sensor-module-hw487-pcb-side.jpg?v=1763011310"},{"product_id":"ky-003-hall-magnetic-sensor-module-for-arduino","title":"KY-003 Hall Magnetic Sensor Module for Arduino | A3144 Sensor","description":"\u003ch4 class=\"mb-2 mt-4 font-display font-semimedium text-base first:mt-0\"\u003eOverview\u003c\/h4\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eThe KY-003 Hall Magnetic Sensor Module is a reliable and high-precision sensor designed for detecting magnetic fields. Built with the A3144 Hall-effect switch, it’s an ideal choice for Arduino enthusiasts, robotics projects, and DIY smart car applications.\u003c\/p\u003e\n\u003ch4 class=\"mb-2 mt-4 font-display font-semimedium text-base first:mt-0\"\u003eFeatures\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\n\u003cstrong\u003eHigh-Sensitivity Magnetic Detection:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe A3144 Hall-effect sensor provides accurate and consistent magnetic field detection.\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\n\u003cstrong\u003eIntegrated Circuit Design:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eIncludes reverse polarity protection, a square wave Hall voltage generator, temperature compensation, signal amplifier, Schmitt trigger, and open-collector output for stable operation.\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\n\u003cstrong\u003e5V Operating Voltage:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eFully compatible with most microcontrollers, including Arduino and AVR boards.\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\n\u003cstrong\u003eDigital Signal Output:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eOffers a clean digital signal (HIGH\/LOW) that can be easily processed by microcontrollers.\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\n\u003cstrong\u003eSimple Wiring:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eComes with three labeled pins — VCC (5V), GND, and Signal — for quick and easy connection.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 class=\"mb-2 mt-4 font-display font-semimedium text-base first:mt-0\"\u003eApplications\u003c\/h4\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003ePerfect for projects requiring magnetic field sensing, such as:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eMagnetic proximity switches\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eRPM counters and speed detection\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eDIY robotics and smart car kits\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eMagnetic field measurement experiments\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 class=\"mb-2 mt-4 font-display font-semimedium text-base first:mt-0\"\u003eSpecifications\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eModel: KY-003\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eSensor Type: A3144 Hall-effect switch\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eOperating Voltage: 5V DC\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eOutput Type: Digital (open collector)\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003ePins: VCC, GND, Signal\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eDimensions: Approx. 18mm x 15mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!----\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":44498682544279,"sku":"","price":10.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/files\/ky-003-hall-magnetic-sensor-module-arduino-top-view.jpg?v=1763010569"},{"product_id":"double-button-touch-switch-module","title":"Double Button Capacitive Touch Sensor Module (3.3V–5V)","description":"\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eUpgrade your control interface with the Double Button Capacitive Touch Sensor Module — a reliable, modern alternative to traditional mechanical buttons. Designed for Arduino and DIY electronics, this module uses advanced capacitive sensing to create responsive, touch-based input controls with effortless precision.\u003c\/p\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003eKey Features and Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\n\u003cstrong\u003eDual Touch Buttons\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e– Two independent touch-sensitive pads with red indicator LEDs activate on touch, ideal for interactive projects.\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\n\u003cstrong\u003eCapacitive Proximity Sensing\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e– Detects touch within 0–5 mm, enabling smooth, wear-free operation without physical contact.\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\n\u003cstrong\u003eDual-Sided Activation\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e– Both front and back sides of the PCB serve as functional touch surfaces, enhancing design flexibility.\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\n\u003cstrong\u003eCT8224-3 Chipset\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e– Built with a CT8224-3 IC that outputs a simple digital signal, easily compatible with Arduino, Raspberry Pi, and similar microcontrollers.\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\n\u003cstrong\u003eHidden Installation\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e– Mount under non-metallic materials (plastic, glass, acrylic, or thin paper) for a seamless, modern finish in your projects.\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\n\u003cstrong\u003eCompact Design\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e– Includes 4 mounting holes and low power consumption, perfect for embedded systems and control panels.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"group relative\"\u003e\n\u003cdiv class=\"w-full overflow-x-auto md:max-w-[90vw] border-subtlest ring-subtlest divide-subtlest bg-transparent\"\u003e\n\u003ctable class=\"border-subtler my-[1em] w-full table-auto border-separate border-spacing-0 border-l border-t\"\u003e\n\u003cthead class=\"bg-subtler\"\u003e\n\u003ctr\u003e\n\u003cth class=\"border-subtler p-sm break-normal border-b border-r text-left align-top\"\u003eSpecification\u003c\/th\u003e\n\u003cth class=\"border-subtler p-sm break-normal border-b border-r text-left align-top\"\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003eModel\u003c\/td\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003eDouble Button Touch Sensor Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003eDetection Type\u003c\/td\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003eCapacitive Proximity Sensor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003eDetection Distance\u003c\/td\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003e0–5 mm (Non-metallic substrates)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003eControl IC\u003c\/td\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003eCT8224-3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003eInput Voltage\u003c\/td\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003eDC 3.3 V – 5 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003eOutput Signal\u003c\/td\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003eDigital switching (Low = standby, High = touch activated)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003eIndicators\u003c\/td\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003e1 power LED, 2 red touch LEDs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003eMounting\u003c\/td\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003e4 × M2 screw holes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003eDimensions\u003c\/td\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003e42 mm × 28 mm × 2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bg-base border-subtler shadow-subtle pointer-coarse:opacity-100 right-xs absolute bottom-0 flex rounded-lg border opacity-0 transition-opacity group-hover:opacity-100 [\u0026amp;\u0026gt;*:not(:first-child)]:border-subtle [\u0026amp;\u0026gt;*:not(:first-child)]:border-l\"\u003e\n\u003cdiv class=\"flex\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"flex\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003ePackage Includes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e1 × Double Button Capacitive Touch Module\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e1 × 4‑Pin Header Connector\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eGreat for Arduino-based projects, smart home devices, control panels, and educational electronics.\u003c\/p\u003e\n\u003cp\u003e\u003cspan lang=\"EN-US\"\u003e\u003c!-- [if !supportLineBreakNewLine]--\u003e\u003cbr\u003e\u003c!--[endif]--\u003e\u003c\/span\u003e\u003cspan lang=\"EN-US\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003e\n\u003cspan lang=\"EN-US\"\u003eIncluded:\u003c\/span\u003e\u003cspan lang=\"EN-US\"\u003e\u003c\/span\u003e\n\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan lang=\"EN-US\"\u003e1 x Dual Button Touch Module\u003c\/span\u003e\u003cspan lang=\"EN-US\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan lang=\"EN-US\"\u003e1 x 4Pin\u003c\/span\u003e\u003cspan lang=\"EN-US\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!----\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":44516234133655,"sku":"","price":15.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/files\/capacitive-proximity-sensor-0-5mm-dc-3-3-5v.jpg?v=1762871317"},{"product_id":"uv-led-module-arduino","title":"RWRobot UV LED Module for Arduino | 390–400nm Curing Light","description":"\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003eHigh-Efficiency UV LED Module for Arduino and Microcontroller Projects\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eThe RWRobot UV LED Module is a powerful and compact ultraviolet light solution designed for electronic hobbyists, educators, and professionals. With three high-efficiency 5mm UV LEDs, it delivers stable performance for applications such as UV curing, banknote verification, and scientific experiments. This module easily connects to Arduino and other microcontroller systems for reliable and high-precision control.\u003c\/p\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\n\u003cstrong\u003eStable UV Output:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eEmits a consistent 390–400nm near-UV wavelength ideal for curing and detection tasks.\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\n\u003cstrong\u003eArduino-Compatible Interface:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eUses the standard SVG 3-pin interface for quick and easy connection.\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\n\u003cstrong\u003eDigital On\/Off Control:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eOperated via a digital level signal—simply connect to your Arduino’s digital output pin.\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\n\u003cstrong\u003eCompact \u0026amp; Easy to Mount:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eMeasuring just 25 × 21mm with mounting holes for secure installation in any setup.\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\n\u003cstrong\u003eHigh Power Efficiency:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eProduces bright UV light with minimal energy consumption, suitable for constant use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\n\u003cstrong\u003eUV Curing:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eSpeed up the drying and hardening of UV-sensitive glues, resins, and coatings.\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\n\u003cstrong\u003eBanknote \u0026amp; Document Verification:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDetect security features under UV light to verify currency and IDs.\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\n\u003cstrong\u003eEducational \u0026amp; Research Projects:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ePerfect for chemistry labs, forensic experiments, or fluorescence testing.\u003c\/li\u003e\n\u003cli class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\n\u003cstrong\u003eEnvironmental or Sterilization Projects:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eIntegrate into UV sensing and sterilization systems (use with safety precautions).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"group relative\"\u003e\n\u003cdiv class=\"w-full overflow-x-auto md:max-w-[90vw] border-subtlest ring-subtlest divide-subtlest bg-transparent\"\u003e\n\u003ctable class=\"border-subtler my-[1em] w-full table-auto border-separate border-spacing-0 border-l border-t\"\u003e\n\u003cthead class=\"bg-subtler\"\u003e\n\u003ctr\u003e\n\u003cth class=\"border-subtler p-sm break-normal border-b border-r text-left align-top\"\u003eSpecification\u003c\/th\u003e\n\u003cth class=\"border-subtler p-sm break-normal border-b border-r text-left align-top\"\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003eWavelength\u003c\/td\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003e390–400nm (Near UV)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003eLED Type\u003c\/td\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003e3 × 5mm High-Efficiency UV LEDs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003eBoard Size\u003c\/td\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003eApprox. 25 × 21mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003eInterface\u003c\/td\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003eStandard 3P Arduino Interface (SVG)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003eInput Type\u003c\/td\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003eDigital Level Control\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003eMounting\u003c\/td\u003e\n\u003ctd class=\"px-sm border-subtler min-w-[48px] break-normal border-b border-r\"\u003e3mm hole, 15mm hole distance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-US\"\u003e \u003c\/span\u003e\u003c\/p\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":44545334444183,"sku":"","price":18.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/files\/yurobot-uv-led-module-for-arduino-banknote-verification.jpg?v=1762870872"},{"product_id":"apds-9930-gesture-sensor-module-for-arduino","title":"APDS-9930 Digital Proximity, Ambient Light \u0026 Gesture Sensor Module","description":"\u003cp\u003eThe APDS-9930 is an all-in-one digital ambient light, proximity, and gesture sensor module, perfect for Arduino and other DIY electronics projects. Its plug-and-play design offers reliable detection up to 100mm, eliminating the need for complex factory calibration. Build interactive projects that respond to light, motion, and touchless control.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eKey Features:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eIntegrated Sensing:\u003c\/b\u003e Combines digital ambient light sensing (ALS), IR LED, and proximity detection in one compact module.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePlug-and-Play Proximity:\u003c\/b\u003e Offers reliable detection up to 100mm, with no factory calibration required.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eVersatile Performance:\u003c\/b\u003e Works reliably in various lighting conditions, from bright sunlight to dark rooms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHigh Sensitivity:\u003c\/b\u003e Operates effectively behind darkened glass, making it ideal for mobile phone-style applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWide Dynamic Range:\u003c\/b\u003e Enables short-distance detection behind materials like dark glass.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eProgrammable Interrupts:\u003c\/b\u003e Customize upper and lower threshold settings for a wide range of applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eApproximates Human Eye Response:\u003c\/b\u003e The ambient light sensor provides a more natural light measurement.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eProduct Details \u0026amp; Specifications\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eOperating Voltage:\u003c\/b\u003e 2.8V - 3.8V\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eResolution:\u003c\/b\u003e Up to 16-bit\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eIncluded Components:\u003c\/b\u003e ALS, IR LED, and Proximity Detector integrated into a single optical module.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eApplications:\u003c\/b\u003e Ideal for gesture control, object detection, interactive displays, and smart home projects with Arduino, Raspberry Pi, and more.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":44656281026711,"sku":"","price":28.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/files\/apd-9930-proximity-sensor-front.jpg?v=1757411053"},{"product_id":"3v-intelligent-light-control-sensor-switch-module-arduino-micro-bit","title":"3V Smart Light Control Sensor Switch Module for DIY LED Lamp\/Robot","description":"\u003ch4 data-start=\"497\" data-end=\"521\"\u003e🌟 \u003cstrong data-start=\"505\" data-end=\"521\"\u003eKey Features\u003c\/strong\u003e\n\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli data-start=\"525\" data-end=\"683\"\u003e\n\u003cstrong data-start=\"525\" data-end=\"555\"\u003eAutomatic Light Detection:\u003c\/strong\u003e Automatically switches the LED \u003cstrong data-start=\"587\" data-end=\"606\"\u003eoff in daylight\u003c\/strong\u003e and \u003cstrong data-start=\"611\" data-end=\"629\"\u003eon in darkness\u003c\/strong\u003e — ideal for energy-saving night lights or projects.\u003c\/li\u003e\n\u003cli data-start=\"686\" data-end=\"838\"\u003e\n\u003cstrong data-start=\"686\" data-end=\"711\"\u003eSafe 3V DC Operation:\u003c\/strong\u003e Designed for \u003cstrong data-start=\"725\" data-end=\"746\"\u003elow-voltage 3V DC\u003c\/strong\u003e power — perfectly compatible with \u003cstrong data-start=\"781\" data-end=\"835\"\u003eArduino, Micro:bit, and classroom electronics kits\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli data-start=\"841\" data-end=\"966\"\u003e\n\u003cstrong data-start=\"841\" data-end=\"868\"\u003eVersatile Applications:\u003c\/strong\u003e Great for \u003cstrong data-start=\"879\" data-end=\"963\"\u003eDIY robots, electronic experiments, sensor learning, or LED night light projects\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli data-start=\"969\" data-end=\"1100\"\u003e\n\u003cstrong data-start=\"969\" data-end=\"998\"\u003eExpandable Functionality:\u003c\/strong\u003e Can be connected to a \u003cstrong data-start=\"1021\" data-end=\"1037\"\u003erelay module\u003c\/strong\u003e to control other electrical devices such as motors or lamps.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1102\" data-end=\"1105\"\u003e\n\u003ch4 data-start=\"1107\" data-end=\"1135\"\u003e💡 \u003cstrong data-start=\"1115\" data-end=\"1135\"\u003eProduct Overview\u003c\/strong\u003e\n\u003c\/h4\u003e\n\u003cp data-start=\"1137\" data-end=\"1430\"\u003eThe \u003cstrong data-start=\"1141\" data-end=\"1188\"\u003e3V Smart Light Control Sensor Switch Module\u003c\/strong\u003e is a compact, easy-to-use sensor that detects ambient light levels using an \u003cstrong data-start=\"1265\" data-end=\"1299\"\u003eLDR (Light Dependent Resistor)\u003c\/strong\u003e.\u003cbr data-start=\"1300\" data-end=\"1303\"\u003eWhen the surrounding light dims, the module automatically powers on the connected LED, functioning as an \u003cstrong data-start=\"1408\" data-end=\"1427\"\u003eauto night lamp\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"1432\" data-end=\"1671\"\u003eThis beginner-friendly design is ideal for students, hobbyists, and makers learning basic \u003cstrong data-start=\"1522\" data-end=\"1579\"\u003eelectronics, sensor logic, or smart lighting projects\u003c\/strong\u003e. It can also be integrated into small robot cars, model displays, or school STEM lessons.\u003c\/p\u003e\n\u003chr data-start=\"1673\" data-end=\"1676\"\u003e\n\u003ch4 data-start=\"1678\" data-end=\"1714\"\u003e⚙️ \u003cstrong data-start=\"1686\" data-end=\"1714\"\u003eTechnical Specifications\u003c\/strong\u003e\n\u003c\/h4\u003e\n\u003cdiv class=\"_tableContainer_1rjym_1\"\u003e\n\u003cdiv class=\"group _tableWrapper_1rjym_13 flex w-fit flex-col-reverse\" tabindex=\"-1\"\u003e\n\u003ctable data-start=\"1716\" data-end=\"2028\" class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead data-start=\"1716\" data-end=\"1747\"\u003e\n\u003ctr data-start=\"1716\" data-end=\"1747\"\u003e\n\u003cth data-start=\"1716\" data-end=\"1732\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"1718\" data-end=\"1731\"\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth data-start=\"1732\" data-end=\"1747\" data-col-size=\"md\"\u003e\u003cstrong data-start=\"1734\" data-end=\"1745\"\u003eDetails\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody data-start=\"1764\" data-end=\"2028\"\u003e\n\u003ctr data-start=\"1764\" data-end=\"1797\"\u003e\n\u003ctd data-start=\"1764\" data-end=\"1788\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"1766\" data-end=\"1787\"\u003eOperating Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-start=\"1788\" data-end=\"1797\"\u003eDC 3V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1798\" data-end=\"1820\"\u003e\n\u003ctd data-start=\"1798\" data-end=\"1811\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"1800\" data-end=\"1810\"\u003eLength\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-start=\"1811\" data-end=\"1820\"\u003e38 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1821\" data-end=\"1844\"\u003e\n\u003ctd data-start=\"1821\" data-end=\"1833\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"1823\" data-end=\"1832\"\u003eWidth\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-start=\"1833\" data-end=\"1844\"\u003e13.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1845\" data-end=\"1867\"\u003e\n\u003ctd data-start=\"1845\" data-end=\"1858\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"1847\" data-end=\"1857\"\u003eHeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-start=\"1858\" data-end=\"1867\"\u003e13 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1868\" data-end=\"1931\"\u003e\n\u003ctd data-start=\"1868\" data-end=\"1883\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"1870\" data-end=\"1882\"\u003eFunction\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-start=\"1883\" data-end=\"1931\"\u003eAutomatically turns on LED when light is low\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1932\" data-end=\"2028\"\u003e\n\u003ctd data-start=\"1932\" data-end=\"1951\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"1934\" data-end=\"1950\"\u003eApplications\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-start=\"1951\" data-end=\"2028\"\u003eLight-sensing lamp, DIY electronics, robot projects, teaching experiments\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003chr data-start=\"2030\" data-end=\"2033\"\u003e\n\u003ch4 data-start=\"2035\" data-end=\"2057\"\u003e🔌 \u003cstrong data-start=\"2043\" data-end=\"2057\"\u003eHow to Use\u003c\/strong\u003e\n\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong data-start=\"2062\" data-end=\"2083\"\u003ePower Connection:\u003c\/strong\u003e\u003cbr data-start=\"2083\" data-end=\"2086\"\u003eConnect a \u003cstrong data-start=\"2099\" data-end=\"2121\"\u003e3V DC power supply\u003c\/strong\u003e to the module’s input pins (observe correct polarity).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong data-start=\"2182\" data-end=\"2201\"\u003eLED Connection:\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eConnect the \u003cstrong data-start=\"2221\" data-end=\"2241\"\u003elong leg (anode)\u003c\/strong\u003e of the LED to the “+” terminal.\u003c\/li\u003e\n\u003cli\u003eConnect the \u003cstrong data-start=\"2293\" data-end=\"2316\"\u003eshort leg (cathode)\u003c\/strong\u003e to the “–” terminal.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong data-start=\"2343\" data-end=\"2366\"\u003eOptional Expansion:\u003c\/strong\u003e\u003cbr data-start=\"2366\" data-end=\"2369\"\u003eFor controlling motors or higher power devices, connect the output through a \u003cstrong data-start=\"2449\" data-end=\"2465\"\u003erelay module\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2468\" data-end=\"2471\"\u003e\n\u003ch4 data-start=\"2473\" data-end=\"2500\"\u003e⚠️ \u003cstrong data-start=\"2481\" data-end=\"2500\"\u003eImportant Notes\u003c\/strong\u003e\n\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli data-start=\"2504\" data-end=\"2535\"\u003ePower must be \u003cstrong data-start=\"2518\" data-end=\"2532\"\u003eDC 3V only\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli data-start=\"2538\" data-end=\"2675\"\u003eThe module \u003cstrong data-start=\"2549\" data-end=\"2587\"\u003ecan directly drive only LED lights\u003c\/strong\u003e.\u003cbr data-start=\"2588\" data-end=\"2591\"\u003eTo control larger loads (motors, lamps, etc.), use a \u003cstrong data-start=\"2646\" data-end=\"2672\"\u003erelay expansion module\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2677\" data-end=\"2680\"\u003e\n\u003ch4 data-start=\"2682\" data-end=\"2710\"\u003e📦 \u003cstrong data-start=\"2690\" data-end=\"2710\"\u003ePackage Includes\u003c\/strong\u003e\n\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli data-start=\"2714\" data-end=\"2763\"\u003e1 × 3V Smart Light Control Sensor Switch Module\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":44940666667159,"sku":"","price":12.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/files\/3v-light-control-sensor-module-front.jpg?v=1762238845"},{"product_id":"hx711-digital-load-cell-sensor-kit-with-digital-screen","title":"HX711 Digital Load Cell Kit 20KG with LCD Display for Arduino","description":"\u003ch4 class=\"mb-xs mt-5 text-base font-[500] first:mt-0 dark:font-[475]\"\u003e\u003cstrong\u003eComplete HX711 Digital Load Cell Sensor Kit - 20KG Capacity\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp class=\"my-0\"\u003eTransform your Arduino projects with this\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eprofessional-grade digital weighing solution\u003c\/strong\u003e. This comprehensive kit includes everything needed to build precise electronic scales for kitchen, laboratory, or industrial applications.\u003c\/p\u003e\n\u003ch4 class=\"mb-xs mt-5 text-base font-[500] first:mt-0 dark:font-[475]\"\u003e\u003cstrong\u003eKey Features \u0026amp; Benefits:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp class=\"my-0\"\u003e\u003cstrong\u003e🔧 Complete Kit Includes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"my-0\"\u003eHigh-precision 20KG load cell sensor\u003c\/li\u003e\n\u003cli class=\"my-0\"\u003eHX711 24-bit AD converter module\u003c\/li\u003e\n\u003cli class=\"my-0\"\u003e4-digit LCD display with calibration controls\u003c\/li\u003e\n\u003cli class=\"my-0\"\u003eAll necessary mounting hardware and cables\u003c\/li\u003e\n\u003cli class=\"my-0\"\u003eDetailed setup instructions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"my-0\"\u003e\u003cstrong\u003e⚡ Technical Specifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"my-0\"\u003e\n\u003cstrong\u003eCapacity:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e20KG maximum weight\u003c\/li\u003e\n\u003cli class=\"my-0\"\u003e\n\u003cstrong\u003eAccuracy:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e±1g precision for reliable measurements\u003c\/li\u003e\n\u003cli class=\"my-0\"\u003e\n\u003cstrong\u003ePower:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e3.3V-5.5V DC operation\u003c\/li\u003e\n\u003cli class=\"my-0\"\u003e\n\u003cstrong\u003eDisplay:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e4-digit LED showing up to 9999g\u003c\/li\u003e\n\u003cli class=\"my-0\"\u003e\n\u003cstrong\u003eConnectivity:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eArduino-compatible with easy wiring\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"my-0\"\u003e\u003cstrong\u003e🎯 Perfect Applications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"my-0\"\u003eDIY kitchen scales and food measurement\u003c\/li\u003e\n\u003cli class=\"my-0\"\u003eLaboratory weighing systems\u003c\/li\u003e\n\u003cli class=\"my-0\"\u003ePackage and shipping scales\u003c\/li\u003e\n\u003cli class=\"my-0\"\u003eEducational STEM projects\u003c\/li\u003e\n\u003cli class=\"my-0\"\u003eIndustrial weight monitoring\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"my-0\"\u003e\u003cstrong\u003e💡 User-Friendly Design:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"my-0\"\u003e\n\u003cstrong\u003eTare Function:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eZero out container weight automatically\u003c\/li\u003e\n\u003cli class=\"my-0\"\u003e\n\u003cstrong\u003eCalibration:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eOne-time setup with memory retention\u003c\/li\u003e\n\u003cli class=\"my-0\"\u003e\n\u003cstrong\u003eDurable Construction:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eIndustrial-grade components\u003c\/li\u003e\n\u003cli class=\"my-0\"\u003e\n\u003cstrong\u003eCompact Size:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e50×33×10mm display module\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 class=\"mb-xs mt-5 text-base font-[500] first:mt-0 dark:font-[475]\"\u003e\u003cstrong\u003eTechnical Details:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli class=\"my-0\"\u003e\n\u003cstrong\u003eLoad Cell Dimensions:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e12.7×12.7×80mm\u003c\/li\u003e\n\u003cli class=\"my-0\"\u003e\n\u003cstrong\u003eModule Size:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e16×24mm HX711 breakout\u003c\/li\u003e\n\u003cli class=\"my-0\"\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eSecure 4mm and 5mm mounting holes\u003c\/li\u003e\n\u003cli class=\"my-0\"\u003e\n\u003cstrong\u003eWire Configuration:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eColor-coded for easy connection\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"my-0\"\u003eThis kit eliminates the complexity of sourcing individual components, providing a tested, compatible system that works reliably from day one\u003ca rel=\"nofollow noopener\" class=\"citation ml-xs inline\" data-state=\"closed\" aria-label=\"Mini Weight Unit (HX711) Load Cell Amplifier\" href=\"https:\/\/shop.m5stack.com\/products\/weight-sensor-unit\" target=\"_blank\"\u003e\u003c\/a\u003e\u003cspan class=\"whitespace-nowrap\"\u003e\u003ca rel=\"nofollow noopener\" class=\"mr-[2px] citation ml-xs inline\" data-state=\"closed\" aria-label=\"KS0345 Electronic Scale Kit for Arduino\" href=\"https:\/\/docs.keyestudio.com\/projects\/KS0345\/en\/latest\/KS0345.html\" target=\"_blank\"\u003e\u003c\/a\u003e.\u003c\/span\u003e\u003c\/p\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":45354621403287,"sku":"","price":65.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/files\/hx711-digital-load-cell-kit-20kg-lcd-display-main.jpg?v=1755787357"},{"product_id":"ir-infrared-sensor-module-for-arduino","title":"Arduino IR Obstacle Avoidance Sensor Module (2–30 cm Detection)","description":"\u003cp class=\"my-0\"\u003e\u003cstrong\u003eProduct Description\u003c\/strong\u003e\u003cbr\u003eEnhance your robotics and automation projects with a compact, versatile IR obstacle avoidance module for Arduino and other 3.3 V–5 V microcontrollers. Featuring an infrared LED transmitter and photodiode receiver, this sensor reliably detects obstacles—and even black or white lines—within 2 cm to 30 cm at a 35° angle. A green LED indicator lights up when a reflective surface is detected, and a red LED confirms power. The digital OUT pin delivers a LOW signal upon detection, capable of directly driving a 5 V relay or interfacing with any microcontroller I\/O. The board includes two 3 mm mounting holes and measures just 31 mm × 15 mm for easy integration into smart cars, robots, line trackers, and counting systems.\u003c\/p\u003e\n\u003cp class=\"my-0\"\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"my-0\"\u003eDetection range: 2 cm–30 cm, 35° angle\u003c\/li\u003e\n\u003cli class=\"my-0\"\u003eDigital OUT: 0\/1 logic, drives 5 V relays\u003c\/li\u003e\n\u003cli class=\"my-0\"\u003eStatus LEDs: green detection, red power\u003c\/li\u003e\n\u003cli class=\"my-0\"\u003ePower: 3.3 V–5 V DC\u003c\/li\u003e\n\u003cli class=\"my-0\"\u003eInterfaces: VCC, GND, OUT pins\u003c\/li\u003e\n\u003cli class=\"my-0\"\u003eDimensions: 31 mm × 15 mm; mounting holes: 3 mm\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":45358860992663,"sku":"","price":20.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/files\/ir-infrared-obstacle-avoidance-sensor-module-arduino-front.jpg?v=1755787252"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/collections\/sensors-collection.png?v=1776350231","url":"https:\/\/scccltd.com\/collections\/sensors.oembed?page=3","provider":"Sun Cheong Computer Company Limited","version":"1.0","type":"link"}