{"title":"Electronic Modules","description":"\u003cp\u003eHigh-quality \u003cstrong\u003eelectronic modules\u003c\/strong\u003e are the building blocks of any successful IoT, robotics, or DIY STEM project. Whether you need a TP4056 lithium battery charger, an L298N motor driver, or precise environmental sensors for your Arduino and ESP32 builds, we have the exact components. Backed by 20 years of electronic retail experience in Sham Shui Po, our technical team provides ready-stock availability and expert component matching to ensure your circuits operate safely and efficiently.\u003c\/p\u003e","products":[{"product_id":"165x55mm-breadboard-830-point","title":"165x55mm 830-Point Solderless Breadboard for DIY Electronics","description":"\u003ch2 data-sourcepos=\"12:1-12:74\"\u003e\u003cstrong\u003e830-Point Solderless Breadboard for Electronic DIY Projects (165x55mm)\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp data-sourcepos=\"14:1-14:375\"\u003eUnlock your creativity in electronics with this essential 830-point solderless breadboard. Measuring 165mm x 55mm, this breadboard provides ample space and connection points for prototyping and experimenting with a wide array of electronic components. It's the perfect tool for hobbyists, students, and professionals to build and test circuits without the need for soldering.\u003c\/p\u003e\n\u003ch3 data-sourcepos=\"16:1-16:17\"\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul data-sourcepos=\"18:1-23:0\"\u003e\n\u003cli data-sourcepos=\"18:1-18:212\"\u003e\n\u003cstrong\u003eGenerous Connection Points:\u003c\/strong\u003e With a total of 830 tie points, including 630 for the main circuit area and 200 for power rails, you have plenty of room to connect various components and build complex circuits.\u003c\/li\u003e\n\u003cli data-sourcepos=\"19:1-19:213\"\u003e\n\u003cstrong\u003eConvenient Solderless Design:\u003c\/strong\u003e Easily insert and remove components, allowing for quick circuit modifications and rapid prototyping without any soldering. This makes it ideal for learning and iterative design.\u003c\/li\u003e\n\u003cli data-sourcepos=\"20:1-20:248\"\u003e\n\u003cstrong\u003eVersatile \u0026amp; Compatible:\u003c\/strong\u003e Suitable for a wide range of electronic DIY projects, from simple LED circuits to more intricate microcontroller designs. It works seamlessly with standard electronic components, jumper wires, and development kits.\u003c\/li\u003e\n\u003cli data-sourcepos=\"21:1-21:176\"\u003e\n\u003cstrong\u003eDurable \u0026amp; Reusable:\u003c\/strong\u003e Constructed from high-quality materials, this breadboard is designed for repeated use, making it a cost-effective solution for countless projects.\u003c\/li\u003e\n\u003cli data-sourcepos=\"22:1-23:0\"\u003e\n\u003cstrong\u003ePortable \u0026amp; Lightweight:\u003c\/strong\u003e Its compact dimensions and light weight make it easy to carry for fieldwork, classroom experiments, or moving between different workspaces.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-sourcepos=\"24:1-24:183\"\u003eWhether you're just starting out in electronics or a seasoned enthusiast, this 830-point breadboard is an indispensable tool for developing and testing your circuit ideas efficiently.\u003c\/p\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":35667475726487,"sku":"21PS000939","price":20.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/files\/830-point-solderless-breadboard-top-view.jpg?v=1777009024"},{"product_id":"usb-charger-step-down-buck-power-supply-module","title":"High-Efficiency DC 9-36V to 5V 3A Dual USB Buck Converter Module","description":"\u003ch2\u003e\u003cb\u003eUnleash Portable Power for All Your USB Devices!\u003c\/b\u003e\u003c\/h2\u003e\n\u003cp\u003eAre you looking for a reliable and efficient way to power your 5V USB devices from a wider voltage range? Our \u003cb\u003eDC 9V\/12V\/24V\/36V to 5V 3A Dual USB Charger Step Down Buck Power Supply Module\u003c\/b\u003e is the perfect solution for your portable power needs, DIY electronics projects, and automotive applications.\u003c\/p\u003e\n\u003ch3\u003e\u003cb\u003eKey Features \u0026amp; Benefits:\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eWide Input Voltage Range:\u003c\/b\u003e Accepts DC input from 9V to 36V, making it incredibly versatile for various power sources, including 12V and 24V battery systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDual USB Output:\u003c\/b\u003e Equipped with two USB ports, allowing you to charge or power two 5V devices simultaneously.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHigh Current Output:\u003c\/b\u003e Delivers a robust 3A (MAX) output, ensuring fast and efficient charging for smartphones, tablets, and other USB-powered gadgets.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHigh Efficiency:\u003c\/b\u003e With an impressive efficiency of up to 92%, this buck converter minimizes energy loss and maximizes power delivery to your devices.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCompact \u0026amp; Durable Design:\u003c\/b\u003e Measuring just 50x35mm, its compact size makes it easy to integrate into any project. The robust construction ensures long-lasting performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eVersatile Applications:\u003c\/b\u003e Ideal for mobile power banks, charging mobile phones and tablets, powering small 5V USB devices, automotive charging solutions, and various DIY electronics 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\u003eInput Voltage:\u003c\/b\u003e DC 9V-36V (via 5.5x2.1mm DC barrel jack or screw terminal)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOutput Voltage:\u003c\/b\u003e DC 5V\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOutput Current:\u003c\/b\u003e 3A (Maximum)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eEfficiency:\u003c\/b\u003e Up to 92% (MAX)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSwitching Frequency:\u003c\/b\u003e 150KHz\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLoad Capacity:\u003c\/b\u003e Maximum output 3A\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOperating Temperature:\u003c\/b\u003e -40 ℃ to + 85 ℃\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDimensions:\u003c\/b\u003e 50mm x 35mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eColor:\u003c\/b\u003e Multicolor (as pictured)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMobile Power Banks\u003c\/li\u003e\n\u003cli\u003eCharging Smartphones and Tablets\u003c\/li\u003e\n\u003cli\u003ePowering Raspberry Pi, Arduino, and other 5V development boards\u003c\/li\u003e\n\u003cli\u003eDIY USB Charging Stations\u003c\/li\u003e\n\u003cli\u003eAutomotive USB Power Outlets\u003c\/li\u003e\n\u003cli\u003eAnd many more applications requiring a stable 5V power supply from a higher DC input!\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eGet yours today and experience reliable 5V power wherever you need it!\u003c\/b\u003e\u003c\/p\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":35696777724055,"sku":"21PA000593","price":25.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/products\/dc-buck-converter-dual-usb-top.jpg?v=1776336259"},{"product_id":"lithium-li-ion-18650-3-7v-battery-charger-board","title":"Adjustable 3.7V Lithium Battery Boost Charger Module (5-27V Output)","description":"\u003ch2\u003e\u003cb\u003eUnleash Versatility with Our 3.7V Lithium Battery Boost Charger Module!\u003c\/b\u003e\u003c\/h2\u003e\n\u003cp\u003eThis compact and powerful module is an essential tool for DIY enthusiasts, electronics hobbyists, and anyone looking to efficiently charge 3.7V lithium batteries while simultaneously boosting the output voltage for various applications. Whether you're upgrading a multimeter, powering custom projects, or building portable solutions, this module offers unparalleled flexibility.\u003c\/p\u003e\n\u003ch3\u003e\u003cb\u003eKey Features:\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eWide Input Voltage Range:\u003c\/b\u003e Accepts 4.5V to 8V, making it compatible with various power sources, including 5V solar panels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAdjustable Output Voltage (4.3V - 27V):\u003c\/b\u003e Easily set the precise output voltage required for your specific project. Simply turn the potentiometer counter-clockwise to increase the voltage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eIntegrated Lithium Battery Charger:\u003c\/b\u003e Features a dedicated BAT+ output for charging 3.7V lithium-ion batteries (e.g., 18650 cells) with a charging voltage of 4.2V and a maximum current of 1A.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHigh Discharge Current:\u003c\/b\u003e Supports a maximum discharge current of 2A, providing robust power for your applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOvercharge Protection:\u003c\/b\u003e Built-in overcharge protection ensures the safety and longevity of your batteries.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCompact Design:\u003c\/b\u003e With dimensions of 3.3cm x 2.3cm x 0.9cm, it's perfect for integration into space-constrained projects.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLow Static Current:\u003c\/b\u003e Consumes only about 0.5mA in static mode, minimizing power drain.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eHow it Works:\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThis module functions as both a boost converter and a lithium battery charger. You can connect your input power (e.g., a 5V solar panel) to the VIN+ and VIN- terminals. The BAT+ and BAT- terminals are designed for connecting your 3.7V lithium battery for charging. Simultaneously, the OUT+ and OUT- terminals provide an adjustable boosted voltage (4.3V to 27V) for powering your desired devices.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eIdeal for:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eModifying multimeters\u003c\/li\u003e\n\u003cli\u003eDIY portable power banks\u003c\/li\u003e\n\u003cli\u003eCustom electronics projects\u003c\/li\u003e\n\u003cli\u003eSolar charging solutions\u003c\/li\u003e\n\u003cli\u003eAnd much more!\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eImportant Notes:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eDefault Output:\u003c\/b\u003e The default output voltage is approximately 9V. Please adjust the potentiometer to your desired output before use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOutput Current Calculation:\u003c\/b\u003e The output current needs to be calculated based on your specific load. Reference maximum output currents are 1.4A at 5V, 0.8A at 9V, and 0.6A at 12V.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOver-discharge Protection:\u003c\/b\u003e While there is a 2V boost cutoff, true over-discharge protection that completely locks the output is not present. Consider adding an external protection board for critical applications if deep discharge is a concern.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":35696922919063,"sku":"21PA000591","price":20.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/files\/adjustable-3-7v-lithium-battery-boost-charger-module-5-27v-output.jpg?v=1777558011"},{"product_id":"boost-converter-lcd-display-dc-11v-50v-step-up-power-supply-module","title":"5A Boost Converter with LCD | DC 9V-45V to 11V-50V Step-Up Module","description":"\u003cp\u003eThis product is a versatile Boost Converter with an LCD display (model ZK-S5X), suitable for various electronic applications, including use as a Step-up Power Module or a battery charger. It features adjustable voltage and current, overcurrent protection, and a built-in display for monitoring input\/output voltage and current.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eKey Features:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eBoost Functionality:\u003c\/b\u003e Capable of stepping up input voltage from DC 9V-45V to DC 11V-50V.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAdjustable Output:\u003c\/b\u003e Features CV (Constant Voltage) and CC (Constant Current) potentiometers for precise adjustment of voltage and current.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHigh Efficiency:\u003c\/b\u003e Approximately 96% conversion efficiency.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSafety Features:\u003c\/b\u003e Includes short protection, anti-reverse protection, and anti-back-flow protection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLCD Display:\u003c\/b\u003e Provides clear readouts of voltage (0-50V range, resolution 0.05V) and current (0-5A range, resolution 0.005A).\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDurable Design:\u003c\/b\u003e Comes with a shell for protection.\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\u003eInput Voltage:\u003c\/b\u003e DC 9V-45V\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOutput Voltage:\u003c\/b\u003e DC 11V-50V\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOutput Current:\u003c\/b\u003e Maximum 5A (Output disabled if more than 5A)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOutput Power:\u003c\/b\u003e 90W (Natural heat dissipation)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWorking Current:\u003c\/b\u003e Approx. 30mA\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWorking Temperature:\u003c\/b\u003e -20℃ to 85℃\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":35697234116759,"sku":"21PA000501","price":79.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/files\/5a-dc-dc-boost-converter-lcd-zk-s5x-9v-45v-to-11v-50v.jpg?v=1777624897"},{"product_id":"tft-display-1-44","title":"1.44\" SPI TFT LCD Display Module (ST7735) for Arduino\/DIY","description":"\u003cp\u003e\u003cb\u003eVibrant 1.44\" Full-Color TFT LCD Display Module with SPI Interface (ST7735)\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eBring your electronics projects to life with this high-definition 1.44-inch IPS TFT LCD display module. \u003cspan class=\"citation-14 citation-end-14\"\u003eFeaturing a dedicated semiconductor switch for each pixel, this module offers superior control and stunning visual performance (128x128 resolution).\u003c\/span\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003cp\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan class=\"citation-13 citation-end-13\"\u003eWhether you're building smart wearables, MP3\/MP4 players, small gaming devices, or embedded systems, this module delivers realistic color, high brightness, and excellent contrast.\u003c\/span\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003cp\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eKey Features and Benefits:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan class=\"citation-12\"\u003e\u003c\/span\u003e\u003cb\u003e\u003cspan class=\"citation-12\"\u003eIPS Technology:\u003c\/span\u003e\u003c\/b\u003e\u003cspan class=\"citation-12 citation-end-12\"\u003e Provides wide viewing angles and vivid, realistic color reproduction.\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\u003e65K Full Color:\u003c\/b\u003e Displays rich, layered visuals with high contrast.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"citation-11\"\u003e\u003c\/span\u003e\u003cb\u003e\u003cspan class=\"citation-11\"\u003eFast Response Time:\u003c\/span\u003e\u003c\/b\u003e\u003cspan class=\"citation-11 citation-end-11\"\u003e Each pixel is independently controlled via point pulses, significantly improving reaction speed for dynamic displays.\u003c\/span\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003cb\u003eSPI Interface (7P):\u003c\/b\u003e Simplifies connection to microcontrollers (3.3V-5V) using only a few pins.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"citation-10\"\u003e\u003c\/span\u003e\u003cb\u003e\u003cspan class=\"citation-10\"\u003eVersatile Applications:\u003c\/span\u003e\u003c\/b\u003e\u003cspan class=\"citation-10 citation-end-10\"\u003e Ideal for DIY electronics, educational projects, smart bracelets, and small mobile devices.\u003c\/span\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eTechnical Specifications:\u003c\/b\u003e\u003c\/p\u003e\n\u003cdiv class=\"horizontal-scroll-wrapper\"\u003e\n\u003cdiv class=\"table-block-component\"\u003e\n\u003c!----\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\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\u003cdiv class=\"table-block has-export-button\"\u003e\n\u003cdiv class=\"table-content not-end-of-paragraph\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eFeature\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eDetails (1.44-inch)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cb\u003eMaterial\u003c\/b\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eTFT\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cb\u003eDot Matrix (Resolution)\u003c\/b\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e128 x 128\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cb\u003eDrive IC\u003c\/b\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eST7735\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cb\u003eInterface\u003c\/b\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e8-pin SPI\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cb\u003eDisplay Area\u003c\/b\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e25.5 x 26.5mm\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cb\u003eVoltage (VCC)\u003c\/b\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e3.3V - 5V\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-footer hide-from-message-actions ng-star-inserted\"\u003e\u003c\/div\u003e\n\u003c!----\u003e\n\u003c\/div\u003e\n\u003c!----\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\u003c!----\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cb\u003eInterface Pin Definition:\u003c\/b\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cb\u003eGND:\u003c\/b\u003e Power ground\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eVCC:\u003c\/b\u003e 3.3-5V power supply\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSCL:\u003c\/b\u003e SPI clock pin\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSDA:\u003c\/b\u003e SPI data input\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eRES:\u003c\/b\u003e Restart interface\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDC:\u003c\/b\u003e SPI data\/command selection\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCS:\u003c\/b\u003e Chip select interface (Note: Not available on 1.3-inch models)\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"1.44 inch","offer_id":35829313568919,"sku":"","price":45.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/products\/tft-lcd-display-module-1.44-inch-st7735-spi.jpg?v=1754290956"},{"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":"xh-m229-24-pins-atx-benchtop-power-board-computer-connector-socket-power-supply-adapter","title":"ATX PC Power Supply Breakout Board with USB Ports \u0026 Acrylic Case","description":"\u003cp\u003e\u003cb\u003eOverview:\u003c\/b\u003e Transform your ATX computer power supply into a versatile multi-voltage bench power supply with our ATX Power Supply Breakout Board. This compact and robust module allows you to conveniently access the +3.3V, +5V, +12V, and -12V outputs from a standard 24-pin ATX connector, perfect for hobbyists, electronics enthusiasts, and DIY projects. It also includes dual USB ports for charging or powering 5V USB devices. The transparent acrylic case provides protection and a clear view of the internal components.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eKey Features:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eMulti-Voltage Output:\u003c\/b\u003e Provides four different voltage outputs: +3.3V, +5V, +12V, and -12V, suitable for a wide range of electronic projects.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDual 5V USB Ports:\u003c\/b\u003e Equipped with two 5A USB interfaces, ideal for charging smartphones, tablets, or powering 5V USB-powered devices.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eRobust Terminal Blocks:\u003c\/b\u003e Features high-quality blue screw terminal blocks for secure and easy connection of your wires to different voltage rails.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eIndividual Fuses:\u003c\/b\u003e Each voltage output (excluding -12V) is protected by a 5A fuse, offering enhanced safety for your connected devices and the power supply.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePower Indicator LED:\u003c\/b\u003e A red LED indicates when the board is powered on, providing a clear visual status.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOn\/Off Toggle Switch:\u003c\/b\u003e Convenient toggle switch to power the board on or off.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDurable Acrylic Case:\u003c\/b\u003e Comes with a clear acrylic case (unassembled) that protects the board from accidental shorts and damage while allowing visibility of the components.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCompact Design:\u003c\/b\u003e With dimensions of 6.9cm x 5.6cm x 6.2cm (assembled), it's a space-saving solution for your workbench.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCompatibility:\u003c\/b\u003e Compatible with ATX (and some BTX type) 24-pin PC power supplies.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eImportant Notes for Use:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003e24-Pin ATX Connector:\u003c\/b\u003e Insert your ATX power supply's 24-pin connector into the white header on the board. If using a 20-pin power supply, align the connector starting from the circular dot mark on the circuit board, leaving the extra 4 pins on the board blank.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e-12V Output:\u003c\/b\u003e Please note that the -12V output is primarily a logic potential provided by the motherboard and typically has a very low current capacity (around 300mA). It is generally \u003cb\u003enot suitable for powering loads\u003c\/b\u003e and should only be used for very low-current applications or signal referencing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAssembly Required:\u003c\/b\u003e The acrylic case requires simple assembly. All necessary screws and nuts are included.\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\u003eCompatible Port:\u003c\/b\u003e ATX (supports some BTX types)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePIN Quantity:\u003c\/b\u003e 24PIN\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOutput Groups:\u003c\/b\u003e Four different voltage groups\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSwitch:\u003c\/b\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOutput Voltages:\u003c\/b\u003e\n\u003cul\u003e\n\u003cli\u003e+12V (DC 12V, +12V to GND)\u003c\/li\u003e\n\u003cli\u003e-12V (DC 12V, -12V to GND - Note: Limited current, approx. 300mA, not for driving loads)\u003c\/li\u003e\n\u003cli\u003e+5V (DC 5V, +5V to GND)\u003c\/li\u003e\n\u003cli\u003e+3.3V (DC 3.3V, +3.3V to GND)\u003c\/li\u003e\n\u003cli\u003e+24V (DC 24V, +12V to -12V, experimental - use with caution)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eUSB Interface:\u003c\/b\u003e 5V, 5A (dual ports)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFuses:\u003c\/b\u003e 5A per positive output rail\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eBoard Dimensions (approx.):\u003c\/b\u003e 6.9cm x 5.6cm x 6.2cm (assembled with case)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":35829516042391,"sku":"","price":33.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/files\/atx-power-breakout-board-with-case-angled.jpg?v=1756643967"},{"product_id":"dc-5v-relay-module-for-arduino","title":"2-Channel DC 5V Relay Module with Optocoupler for Arduino \u0026 Pi","description":"\u003cp\u003eControl high-voltage AC\/DC devices safely with this versatile 2-Channel DC 5V Relay Module. Designed for seamless integration with a wide range of microcontrollers, this module features built-in optocouplers for reliable isolation and low-level triggering.\u003c\/p\u003e\n\u003cp\u003eWhether you are working on a home automation project, robotics, or an industrial application, this relay expansion board provides a secure interface between your low-voltage control system and high-power peripherals.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eKey Features \u0026amp; Benefits:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eBroad Compatibility:\u003c\/b\u003e Integrates effortlessly with popular platforms including Arduino UNO R3, Raspberry Pi, 8051, AVR, PIC, DSP, ARM, STM32, and MSP430.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOptocoupler Isolation:\u003c\/b\u003e Ensures safe operation by providing isolation between the control signal and the relay, protecting your microcontroller from surges.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLow Level Trigger:\u003c\/b\u003e Activate the relay with a low voltage (logic low) signal, compatible with most microcontroller GPIO pins.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHigh-Current Capacity:\u003c\/b\u003e Equipped with high-current relays capable of handling AC250V 10A or DC30V 10A.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eStatus Indicators:\u003c\/b\u003e Onboard LED indicators provide immediate visual feedback on the relay output status.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eEfficient Driver:\u003c\/b\u003e Requires a low driver current of 15-20mA per channel.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eCompatibility Details:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eGPIO 3.3V:\u003c\/b\u003e Micro:bit, ESP8266, NodeMCU, etc.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eGPIO 5.5V:\u003c\/b\u003e Arduino, Raspberry Pi, etc.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis standard interface expansion board simplifies the connection and control of external circuits, making it an ideal component for any embedded systems enthusiast or professional.\u003c\/p\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":35845727191191,"sku":"","price":15.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/products\/2-channel-5v-relay-module-arduino-optocoupler.jpg?v=1760869906"},{"product_id":"tp4056-type-c-usb-5v-1a-18650-lithium-battery-charger-module-charging-board-with-dual-protection-functions","title":"TP4056 Type-C USB 5V 1A Lithium Battery Charger Module","description":"\u003cp\u003e\u003cb\u003eOverview:\u003c\/b\u003e Charge your 18650 lithium batteries safely and efficiently with our TP4056 Type-C USB 5V 1A Lithium Battery Charger Module. This compact and versatile charging board is designed with essential dual protection functions to ensure the longevity and safety of your batteries. Perfect for DIY electronics projects, portable power solutions, and any application requiring reliable lithium-ion battery charging.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eKey Features:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eType-C USB Input:\u003c\/b\u003e Modern Type-C port for convenient and reversible connection to 5V power sources.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOptimal Charging:\u003c\/b\u003e Charges 18650 lithium batteries with a dedicated 4.2V ±1% charging termination voltage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHigh Charging Current:\u003c\/b\u003e Delivers up to 1000mA (1A) maximum charging current for quick and efficient charging.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDual Protection Functions:\u003c\/b\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eOver-discharge Protection:\u003c\/b\u003e Automatically cuts off power when the battery voltage drops to 2.5V, preventing damage from deep discharge.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOver-current Protection:\u003c\/b\u003e Protects against excessive current draw with a 3A over-current protection threshold.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCompact Design:\u003c\/b\u003e Ultra-small board size (2.6 x 1.7 CM) makes it easy to integrate into various projects.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCharging Status Indicators:\u003c\/b\u003e Equipped with LED indicators to show charging status (Red for charging, Blue for fully charged).\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\u003eInput Voltage:\u003c\/b\u003e 5V DC (via Type-C USB or solder pads)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCharging Termination Voltage:\u003c\/b\u003e 4.2V ±1%\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMaximum Charging Current:\u003c\/b\u003e 1000mA (1A)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eBattery Over-discharge Protection Voltage:\u003c\/b\u003e 2.5V\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eBattery Over-current Protection Current:\u003c\/b\u003e 3A\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eBoard Dimensions:\u003c\/b\u003e 2.6 CM x 1.7 CM\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eHow to Use:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eConnect Battery:\u003c\/b\u003e Connect the positive terminal of your lithium battery to the \u003ccode\u003eB+\u003c\/code\u003e pad and the negative terminal to the \u003ccode\u003eB-\u003c\/code\u003e pad on the module.\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eImportant Note:\u003c\/b\u003e The first time you connect a battery, there might be no voltage output between \u003ccode\u003eOUT+\u003c\/code\u003e and \u003ccode\u003eOUT-\u003c\/code\u003e. To activate the protection circuit, simply plug in a 5V power source (like a phone charger) into the Type-C USB port. This activation step is also required if the battery is disconnected and reconnected from \u003ccode\u003eB+\u003c\/code\u003e and \u003ccode\u003eB-\u003c\/code\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePower Input:\u003c\/b\u003e Plug a 5V power source (e.g., a mobile phone charger) into the Type-C USB female socket. Alternatively, you can use the adjacent \u003ccode\u003e+\u003c\/code\u003e and \u003ccode\u003e-\u003c\/code\u003e solder pads for 5V input.\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eCharger Requirement:\u003c\/b\u003e Ensure your phone charger or power supply can output 1A or more to guarantee normal charging operation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eConnect Load (Optional):\u003c\/b\u003e Connect your load (e.g., a mobile boost converter or other device) to the \u003ccode\u003eOUT+\u003c\/code\u003e and \u003ccode\u003eOUT-\u003c\/code\u003e terminals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMonitor Charging:\u003c\/b\u003e\n\u003cul\u003e\n\u003cli\u003eA \u003cb\u003ered LED\u003c\/b\u003e will illuminate, indicating that the battery is currently charging.\u003c\/li\u003e\n\u003cli\u003eA \u003cb\u003eblue LED\u003c\/b\u003e will illuminate, indicating that the battery is fully charged.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":35845761433751,"sku":"21PS001469","price":10.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/files\/tp4056-charger-module-front.jpg?v=1753702531"},{"product_id":"51-mcu-development-board-with-stc89c52rc","title":"STC89C52RC 51 MCU Microcontroller Development Board","description":"\u003cp\u003eUnlock the world of embedded systems with the STC89C52RC 51 MCU Development Board. This all-in-one learning kit is perfectly designed for students, hobbyists, and professionals who want to master 8051 microcontroller programming. Featuring an onboard USB programmer and a wide array of integrated modules, you can go from unboxing to coding your first project in minutes.\u003c\/p\u003e\n\u003cp\u003eThe board's 40-pin ZIF (Zero Insertion Force) socket makes it incredibly easy to swap out the included STC89C52RC chip with other compatible MCUs like the AT89S51\/52. All I\/O pins are clearly labeled and accessible, allowing for easy expansion and connection to external modules for more complex experiments.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eKey Features:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003ePowerful Core:\u003c\/b\u003e Comes with a pre-installed STC89C52RC microcontroller, fully compatible with the classic 8051 instruction set.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eEasy Programming:\u003c\/b\u003e Integrated CH340G USB-to-serial chip allows you to power the board and download code with a single USB cable—no external programmer needed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eVersatile ZIF Socket:\u003c\/b\u003e The 40-pin locking socket allows for quick and safe replacement of microcontrollers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOnboard Peripherals:\u003c\/b\u003e Includes an 8-bit LED array, a 4-digit 7-segment display, a passive buzzer, four independent push buttons, and an infrared receiver.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eExpandable Interfaces:\u003c\/b\u003e Features dedicated headers for LCD1602 and LCD12864 displays, an ISP download interface for AT-series chips, and multiple 5V power outputs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eModular Design:\u003c\/b\u003e Jumper caps allow you to enable or disable onboard modules, freeing up I\/O pins for your own custom circuits.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eExtensive Learning Resources:\u003c\/b\u003e Get started right away with a comprehensive collection of 35 example projects and routines. The provided code library covers everything from basic I\/O to advanced communication protocols.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eSample Projects Include:\u003c\/b\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eLED Chaser \/ Knight Rider Effects\u003c\/li\u003e\n\u003cli\u003ePWM Controlled LED Fading\u003c\/li\u003e\n\u003cli\u003ePlaying Melodies with the Buzzer\u003c\/li\u003e\n\u003cli\u003eAlarm and Sound Effect Generation\u003c\/li\u003e\n\u003cli\u003eButton-controlled LEDs\u003c\/li\u003e\n\u003cli\u003eDigital Clock on 7-Segment Display\u003c\/li\u003e\n\u003cli\u003eMatrix Keypad Input\u003c\/li\u003e\n\u003cli\u003eRelay Control\u003c\/li\u003e\n\u003cli\u003eDot-Matrix LED Scrolling Text\u003c\/li\u003e\n\u003cli\u003eDC and Stepper Motor Control\u003c\/li\u003e\n\u003cli\u003eInterfacing with an LCD1602 Display\u003c\/li\u003e\n\u003cli\u003eUsing Timers and External Interrupts\u003c\/li\u003e\n\u003cli\u003eSerial Communication with a PC\u003c\/li\u003e\n\u003cli\u003eDS18B20 Digital Temperature Sensor Reading\u003c\/li\u003e\n\u003cli\u003ePCF8591 AD\/DA Conversion\u003c\/li\u003e\n\u003cli\u003eDS1302 Real-Time Clock (RTC)\u003c\/li\u003e\n\u003cli\u003eAT24C02 EEPROM Memory Storage\u003c\/li\u003e\n\u003cli\u003eInfrared Remote Control Decoding\u003c\/li\u003e\n\u003cli\u003eDisplaying Chinese Characters on an LCD12864\u003c\/li\u003e\n\u003cli\u003eTFT Touch Screen Interfacing\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eMCU:\u003c\/b\u003e STC89C52RC (Industrial Grade)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eProgrammer Chip:\u003c\/b\u003e CH340G\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePower Supply:\u003c\/b\u003e USB (5V) or External DC Jack (5V)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePCB Size:\u003c\/b\u003e 90mm x 76mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDevelopment Software:\u003c\/b\u003e Keil C51\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDownload Software:\u003c\/b\u003e STC-ISP\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDriver OS Support:\u003c\/b\u003e Windows XP \/ 7 \/ 8 \/ 10 \/ 11 (32\/64-bit)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eWhat's in the Box:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1 x 51 Development Board with STC89C52RC MCU\u003c\/li\u003e\n\u003cli\u003e1 x High-Quality USB-A to USB-B Cable\u003c\/li\u003e\n\u003cli\u003e4 x Mounting Standoffs\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":37672608825495,"sku":"","price":78.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/products\/stc89c52rc-51-mcu-development-board.jpg?v=1756048068"},{"product_id":"4-channel-usb-qc3-0-buck-converter-charging-step-down-module","title":"4 Channel USB Qc3.0 Buck Converter Charging Step Down Module","description":"\u003ch1\u003e\u003cspan lang=\"EN-US\" style=\"font-family: 'Arial','sans-serif'; color: #111111; font-weight: normal;\" data-mce-fragment=\"1\" data-mce-style=\"font-family: 'Arial','sans-serif'; color: #111111; font-weight: normal;\"\u003e4 Channel USB Qc3.0 Qc2.0 Dc-Dc Buck Converter Charging Step Down Module 6-32V 9V 12V 24V to Fast Quick Charger Circuit Board 3V 5V 12V\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eInput voltage range: 6V-32V\u003cbr\u003e Output voltage: default 5V, automatically adjust between 3-12V after triggering fast charge\u003cbr\u003e Output power: up to 24W (4V\/3.6A, 5V\/3.4A, 9V\/2.5A, 12V\/2A, etc.)\u003cbr\u003e Output voltage cable compensation function\u003cbr\u003e Conversion efficiency: 90%-97%\u003cbr\u003e Support multiple fast charging protocols\u003cbr\u003e Support DCP protocol, BC1.2, , protocol\u003cbr\u003e Support Fast Charge Protocol FCP\/SCP\u003cbr\u003e Support Fast Charge Protocol AFC\u003cbr\u003e Support Spreadtrum Fast Charge Protocol SFCP\u003cbr\u003e Support Qualcomm QC2.0 and 3.0\u003cbr\u003e Support MTK PE1.1\/PE2.0\u003cspan\u003e \u003c\/span\u003e\u003cbr\u003e Colour:black\u003cbr\u003e Material:Metal + plastic\u003cbr\u003e Size:90*45mm\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cbr\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":37774340849815,"sku":"","price":69.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/products\/61uWTg0OQ3L._SL1500.jpg?v=1753630701"},{"product_id":"breadboard-power-supply-module-1","title":"MB-102 Breadboard Power Supply Module - 3.3V\/5V (6.5-12V Input)","description":"\u003cp\u003ePower your breadboard projects with ease using the MB-102 Breadboard Power Supply Module. This essential module provides stable 3.3V and 5V power rails, making it perfect for a wide range of electronic experiments, prototyping, and DIY projects.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eKey Features:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eFlexible Power Input:\u003c\/b\u003e Accepts DC input ranging from 6.5V to 12V via a standard DC barrel jack, or can be conveniently powered via a USB connection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDual Voltage Output:\u003c\/b\u003e Selectable 3.3V and 5V output options for compatibility with various components and microcontrollers. Easily switch between voltages using the onboard jumper caps.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eIndependent Channel Control:\u003c\/b\u003e Features independent control for the top and bottom power rails, allowing you to switch each channel to 0V, 3.3V, or 5V as needed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHigh Output Current:\u003c\/b\u003e Delivers a maximum output current of over 700mA, sufficient for most breadboard circuits.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eConvenient Output Pins:\u003c\/b\u003e Includes two sets of 3.3V and 5V DC output pins, simplifying connections to your breadboard and other devices.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eIntegrated Power Indicator:\u003c\/b\u003e A self-locking switch and an LED indicator clearly show the module's power status.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCompact \u0026amp; Practical:\u003c\/b\u003e Designed to fit perfectly on standard solderless breadboards (like the MB-102), offering a neat and organized power solution for your workbench.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eIdeal For:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSingle-chip power supply expansion\u003c\/li\u003e\n\u003cli\u003eElectronic building block projects\u003c\/li\u003e\n\u003cli\u003eSmart car development\u003c\/li\u003e\n\u003cli\u003eRobotics power extensions\u003c\/li\u003e\n\u003cli\u003eEducational electronics experiments\u003c\/li\u003e\n\u003cli\u003eGeneral circuit prototyping and design\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eImportant Notes:\u003c\/b\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eFor optimal performance, ensure the module's input voltage is within the 6.5V-12V range when using the DC input. If using a 5V input, the regulator chip requires a voltage difference to function correctly, so a 5V input will not yield a 5V output directly.\u003c\/li\u003e\n\u003cli\u003eIf your project only requires 3.3V, you can still use the 5V output setting to obtain a stable 3.3V supply (refer to the module's specific internal regulation, as some designs allow this if the 5V regulator can also provide 3.3V, or it might imply you need to set the jumper to 3.3V directly).\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":37774618460311,"sku":"","price":10.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/files\/mb-102-breadboard-power-supply-module-3-3v-5v.jpg?v=1777955938"},{"product_id":"8-4v-2-series-li-ion-lithium-battery-capacity-indicator","title":"8.4V 2-Series Li-ion Battery Capacity Indicator","description":"\u003cp\u003eThis ultra-thin 8.4V 2-series Li-ion battery capacity indicator board is an ideal choice for your DIY projects or existing equipment, providing real-time, intuitive battery level display. Equipped with 5 bright LED indicator lights, it allows you to easily monitor power status. Its broad compatibility makes it suitable for lithium batteries, lead-acid batteries, electric vehicle batteries, and various other electrical devices. What's more, it features reverse connection protection, ensuring that even incorrect wiring won't cause damage, guaranteeing safe and worry-free use.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eKey Features\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eIntuitive Power Display:\u003c\/b\u003e 5 LED indicator lights provide a clear and aesthetically pleasing display of battery percentage, keeping you informed at a glance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eUltra-Thin Design:\u003c\/b\u003e Compact dimensions (2.7x\u003ci\u003e62x\u003c\/i\u003e15.8MM) make it easy to integrate into various space-constrained applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWide Compatibility:\u003c\/b\u003e Suitable for 8.4V 2-series lithium batteries, lead-acid batteries, electric vehicle batteries, and other electrical equipment, offering diverse application scenarios.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSafety Protection:\u003c\/b\u003e Built-in reverse connection protection effectively prevents damage to the board due to incorrect wiring, ensuring safer use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLow Power Consumption:\u003c\/b\u003e After releasing the button, the LEDs will turn off with a delay, and the board consumes no power in static mode, saving energy.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eConvenient Operation:\u003c\/b\u003e Simply connect the positive and negative terminals to the battery and gently press the red button to check the power level.\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\u003eCompatible Battery Types:\u003c\/b\u003e 8.4V 2-series lithium batteries, lead-acid batteries, electric vehicle batteries, etc.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDisplay Method:\u003c\/b\u003e 5 LED indicator lights\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePower Level (Voltage Reference):\u003c\/b\u003e\n\u003cul\u003e\n\u003cli\u003eL1: 4.5V - 5.5V\u003c\/li\u003e\n\u003cli\u003eL2: 5.5V - 6.8V\u003c\/li\u003e\n\u003cli\u003eL3: 6.8V - 7.4V\u003c\/li\u003e\n\u003cli\u003eL4: 7.4V - 8.0V\u003c\/li\u003e\n\u003cli\u003eL5: 8.0V - 8.4V\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDimensions:\u003c\/b\u003e 2.7mm (Thickness) * 62mm (Length) * 15.8mm (Width)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCable Length:\u003c\/b\u003e 140mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eProtection Feature:\u003c\/b\u003e Reverse Connection Protection\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eHow to Use\u003c\/b\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eConnect the red positive wire and black negative wire of the display board in parallel to the positive and negative terminals of the battery you wish to test.\u003c\/li\u003e\n\u003cli\u003eGently press and hold the red button on the display board with your finger. The LED indicator lights will illuminate, showing the real-time battery charge level.\u003c\/li\u003e\n\u003cli\u003eUpon releasing your finger, the LED lights will automatically turn off after a 3-5 second delay. In its static state, the display board will consume no power, effectively conserving battery energy.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":37869760282775,"sku":"","price":20.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/products\/8.4v-2s-battery-monitor-with-wires.jpg?v=1753770389"},{"product_id":"ch341a-programmer-module","title":"CH341A Multi-function USB Programmer: UART, I2C, SPI, TTL","description":"\u003cp\u003e\u003cb\u003eOverview\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u003cb\u003eCH341A Programmer Module\u003c\/b\u003e is an essential tool for electronics enthusiasts and professionals. This versatile USB adapter provides a convenient way to convert USB to multiple interfaces, including \u003cb\u003eUART\u003c\/b\u003e, \u003cb\u003eI2C\u003c\/b\u003e, \u003cb\u003eSPI\u003c\/b\u003e, and \u003cb\u003eEPP\/MEM parallel ports\u003c\/b\u003e. Whether you're debugging a microcontroller, programming an EEPROM, or communicating with various devices, this module simplifies your workflow.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eKey Features\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eMulti-Interface Support:\u003c\/b\u003e Seamlessly convert USB to UART, I2C, and SPI. It also supports USB to printer parallel ports and EPP\/MEM modes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSelectable Voltage:\u003c\/b\u003e Choose between \u003cb\u003e3.3V\u003c\/b\u003e and \u003cb\u003e5V\u003c\/b\u003e output voltage and signal levels, making it compatible with a wide range of electronic components.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eStatus Indicators:\u003c\/b\u003e Onboard indicator lights for UART, I2C, and SPI modes provide real-time status updates, ensuring correct operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCompact Design:\u003c\/b\u003e With a size of just 60mm x 27mm, it's portable and easy to integrate into any project.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eIdeal for\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDIY electronics projects\u003c\/li\u003e\n\u003cli\u003eMicrocontroller debugging and programming\u003c\/li\u003e\n\u003cli\u003eSerial communication with devices\u003c\/li\u003e\n\u003cli\u003eHobbyists, students, and engineers\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":37976840994967,"sku":"21LN000352","price":29.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/products\/ch341a-programmer-usb-adapter-front.jpg?v=1757147218"},{"product_id":"mp3-board-module","title":"TF Card U Disk MP3 Format Decoder Board Module","description":"\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eMp3 nondestructive decoder board Built-in amplifier mp3 module mp3 decoder TF card U disk decoding player\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSuperior sound quality.Onboard 2W mono amplifier(5V power of up to 3W) is directly connected to the speaker (recommendation 4 Ω 3W speakers),3.5mm gold plated headphone jack can connect with headphones or external audio\u003c\/li\u003e\n\u003cli\u003eWith a Micro USB port.Through the mobile phone data line can use mobile power supply or the USB cable to charge the MP3 battery,also can use 3.7V lithium battery,or USB 5V power supply\u003c\/li\u003e\n\u003cli\u003eSupport TF Card (mobile phone memory card) and U disk play mode\u003c\/li\u003e\n\u003cli\u003eNo soldering with speaker terminals for easy wiring\u003c\/li\u003e\n\u003cli\u003eThe module is designed to facilitate modification\u003c\/li\u003e\n\u003cli\u003ePower range: 3.7~5.5V\u003c\/li\u003e\n\u003cli\u003eProduct size: 47mm*34mm\/18.50*13.38\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Overview:\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSupport MP3 format, playing power on automatically.When mp3 is played the red LED flashes\u003c\/li\u003e\n\u003cli\u003eSupport U disk (test 32G), TF Card (test 16G) play mode; power on default TF card mode, if the TF card does not exist automatically jump to the U disk mode,and both devices have installed,then you can manually set the play mode.For details please see the key operating instructions\u003c\/li\u003e\n\u003cli\u003eButtons can be adjusted up and down to control songs,volume up and down, pause or play, mode switching.For details please see the key operating instructions\u003c\/li\u003e\n\u003cli\u003ePress menu button enter the single\/all song play mode.The default mode is the all song mode when power up.Pressing the Repeat button can replace the circulating mode\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eKey Operating Instructions:\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\"Prev \/ V--\" button: \"Press\" for switching previous song, \"long press\" for volume down\u003c\/li\u003e\n\u003cli\u003e\"Next\/v++\" button: \"Press\" for switching next song, \"long press\" for volume up\u003c\/li\u003e\n\u003cli\u003e\"P \/ P \/ Mode\" button: \"Press\" for the \"Play\/Pause\" Switch, \"long press\" for U disk, TF card mode\u003c\/li\u003e\n\u003cli\u003e\"Repeat\" button: \"Press\" for “single\/all song\" mode(no long press)\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\"Long press\" approximate 2S\u003c\/li\u003e\n\u003cli\u003eIf you use U disk mode, it is recommended 5V power supply, and some U disk does not support 3.7V power supply\u003c\/li\u003e\n\u003cli\u003eExquisite double board design, large area of copper, stable and reliable\u003c\/li\u003e\n\u003cli\u003ePackage Include:1pcs Mp3 nondestructive decoder board\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":38391541629079,"sku":"","price":20.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/products\/HTB1wgjihr3nBKNjSZFMq6yUSFXai.jpg?v=1753004384"},{"product_id":"wireless-module-with-antenna-1000-meters-long-distance","title":"NRF24L01+PA+LNA 2.4GHz Wireless Transceiver Module with Antenna","description":"\u003ch2 class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eBreak the Distance Barrier in Your IoT Projects\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eStandard wireless modules often struggle with signal drops and limited range, ruining the reliability of your custom builds. The\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cstrong class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eNRF24L01+PA+LNA Wireless Module\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"ng-star-inserted\"\u003e\u003cspan\u003e \u003c\/span\u003esolves this by integrating advanced signal amplification. Whether you are building a long-range drone controller, a smart grid sensor network, or an industrial IoT monitoring system, this module ensures your data packets reach their destination flawlessly—even at distances up to 1100 meters in open spaces.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003ePowerful Amplification with PA + LNA\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eWhat sets this module apart from standard NRF24L01 boards is the dedicated RFX2401C chip, which includes a\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cstrong class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003ePower Amplifier (PA)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"ng-star-inserted\"\u003e\u003cspan\u003e \u003c\/span\u003eand a\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cstrong class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eLow Noise Amplifier (LNA)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"ng-star-inserted\"\u003e. The PA boosts the transmission output up to +20 dBm, while the LNA enhances the receiver sensitivity (up to -104dBm at 250kbps) and filters out background noise. Combined with the included\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cstrong class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003e2dBi SMA antenna\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"ng-star-inserted\"\u003e, you get a rock-solid, bi-directional communication link that penetrates obstacles better than ever before.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eUltra-Low Power for Battery-Operated Devices\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eHigh performance doesn't have to mean high power consumption. Designed for modern smart home and wearable tech applications, this transceiver is incredibly energy efficient. It operates on a low\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cstrong class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003e3.0V to 3.6V logic\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"ng-star-inserted\"\u003e\u003cspan\u003e \u003c\/span\u003eand features a power-down standby mode that draws a mere\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cstrong class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003e4.2uA\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"ng-star-inserted\"\u003e. This makes it perfectly suited for battery-powered sensor nodes that need to run for months or even years without maintenance.\u003c\/span\u003e\u003c\/p\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":39377748787351,"sku":"21PS001366","price":39.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/products\/nrf24l01-pa-lna-wireless-module-with-antenna.jpg?v=1779859394"},{"product_id":"xh-m145-module","title":"XH-M145 Class D Digital Stereo Amplifier Board | 12V Audio Amp","description":"\u003ch2 class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eHigh-Fidelity Audio for Your DIY Projects\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eDon't settle for flat, lifeless sound in your custom audio builds. The\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cstrong class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eXH-M145 Amplifier Board\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"ng-star-inserted\"\u003e\u003cspan\u003e \u003c\/span\u003eis engineered around the premium\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cstrong class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eYDA138-E chip\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"ng-star-inserted\"\u003e, renowned for its high-resolution audio processing. It delivers a wide dynamic range that accurately reproduces every detail of your music. Whether you are building a desktop speaker system, restoring a vintage radio, or creating an arcade cabinet, this board ensures crisp highs and punchy lows with minimal distortion.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eUltra-Efficient Class D Power\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eTraditional amplifiers generate massive amounts of heat, requiring large, space-consuming heatsinks. Thanks to advanced\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cstrong class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eClass D automatic pulse width modulation\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"ng-star-inserted\"\u003e, the XH-M145 operates with incredible thermal efficiency. It pushes out a robust\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cstrong class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003e12W + 12W of stereo power\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"ng-star-inserted\"\u003e\u003cspan\u003e \u003c\/span\u003e(into 4-ohm speakers) while remaining cool to the touch. This \"chip without heat\" design allows you to install the board into tight, compact enclosures without worrying about overheating.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eBuilt-in Safety \u0026amp; Noise Reduction\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eReliability is just as important as sound quality. This digital amplifier board features built-in\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cstrong class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eovercurrent protection and thermal protection\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"ng-star-inserted\"\u003e, safeguarding your speakers and the circuitry from unexpected power spikes or short circuits. Furthermore, the integrated noise reduction technology ensures a high\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cstrong class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003e92% Signal-to-Noise Ratio (SNR)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"ng-star-inserted\"\u003e, giving you a clean, static-free audio background even when the volume is cranked up.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003ePlug-and-Play Connectivity\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eDesigned with the maker in mind, the XH-M145 makes wiring incredibly simple. It features a standard\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cstrong class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003e3.5mm audio jack\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"ng-star-inserted\"\u003e\u003cspan\u003e \u003c\/span\u003eand a 3-pin connector for flexible audio input. The output and power connections utilize heavy-duty\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cstrong class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003egreen screw terminal blocks\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"ng-star-inserted\"\u003e, ensuring a secure, solder-free connection to your 12V power supply and speakers. A built-in rotary volume potentiometer (with included knob hardware) gives you instant, tactile control over your audio levels.\u003c\/span\u003e\u003c\/p\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":39377790926999,"sku":"21PS001312","price":39.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/products\/yda138-e-digital-audio-amp-module-angle.jpg?v=1779782803"},{"product_id":"usb-fan-speed-controller","title":"USB Fan Speed Controller | Stepless Governor Regulator","description":"\u003cp\u003eTake full control of your \u003cb\u003eUSB fan\u003c\/b\u003e's airflow with this versatile \u003cb\u003estepless speed controller\u003c\/b\u003e. Ideal for common \u003cb\u003e5V USB fans\u003c\/b\u003e, cooling pads, and other low-power \u003cb\u003eUSB\u003c\/b\u003e devices, this regulator lets you precisely adjust fan speed for optimal comfort and noise reduction. Whether you're working, sleeping, or just need to cool down, you can dial in the perfect breeze.\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cb\u003eKey Features \u0026amp; Specifications\u003c\/b\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eAdjustable Speed:\u003c\/b\u003e Features a high-quality knob for smooth, \u003cb\u003estepless speed control\u003c\/b\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWide Compatibility:\u003c\/b\u003e Perfect for most 5V \u003cb\u003eUSB fans\u003c\/b\u003e and other low-power \u003cb\u003eUSB-powered\u003c\/b\u003e devices.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDual Power Input:\u003c\/b\u003e Power the controller via a standard \u003cb\u003eUSB-A\u003c\/b\u003e male plug (for chargers, power banks, PCs) or through the \u003cb\u003eMicro USB\u003c\/b\u003e port.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInput Voltage Range:\u003c\/b\u003e DC 4V ~ 12V\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOutput Voltage Range:\u003c\/b\u003e DC 2.5V ~ 8V\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eRated Power:\u003c\/b\u003e 5W\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCompact Design:\u003c\/b\u003e Lightweight and portable at just 12.75g.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eNote:\u003c\/b\u003e For dual-speed fans, make sure the fan is set to the first gear before using this controller to ensure proper speed adjustment.\u003c\/p\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":39453223059607,"sku":"21PS001654","price":20.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/products\/usb-fan-speed-controller-front.jpg?v=1757153950"},{"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":"ch340g-rs232-to-ttl-module","title":"CH340 USB to TTL Serial Adapter Module (3.3V\/5V)","description":"\u003cp\u003e\u003cspan\u003eEffortlessly connect your microcontroller projects to your computer with our reliable CH340 USB to TTL Serial Adapter.\u003c\/span\u003e\u003cspan\u003e This compact module is the perfect tool for programming Arduino Pro Mini,\u003c\/span\u003e\u003cspan\u003e ESP8266\/ESP32 modules,\u003c\/span\u003e\u003cspan\u003e unbricking routers,\u003c\/span\u003e\u003cspan\u003e or communicating with any TTL serial device directly from a USB port.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBased on the stable CH340G chip,\u003c\/span\u003e\u003cspan\u003e this adapter avoids the common driver and compatibility issues found in older chips like the PL2303,\u003c\/span\u003e\u003cspan\u003e ensuring a smooth plug-and-play experience.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb class=\"\"\u003eKey Features:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb class=\"\"\u003eReliable CH340G Chip:\u003c\/b\u003e\u003cspan\u003e Utilizes the industry-proven CH340G IC,\u003c\/span\u003e\u003cspan\u003e ensuring stable performance and broad compatibility across different computers and operating systems.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb class=\"\"\u003eSelectable Logic Levels:\u003c\/b\u003e\u003cspan\u003e Easily switch between \u003c\/span\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\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003e and \u003c\/span\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\"\u003e5\u003c\/span\u003e\u003cspan class=\"mord mathnormal\"\u003eV\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003e power and logic levels using the onboard jumper.\u003c\/span\u003e\u003cspan\u003e This makes it versatile enough to work with a wide range of microcontrollers and peripherals.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb class=\"\"\u003eOn-board Status LEDs:\u003c\/b\u003e\u003cspan\u003e Features Power (PWR),\u003c\/span\u003e\u003cspan\u003e Transmit (TXD),\u003c\/span\u003e\u003cspan\u003e and Receive (RXD) LEDs,\u003c\/span\u003e\u003cspan\u003e allowing you to visually monitor the module's status and data activity at a glance.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb class=\"\"\u003eHigh-Quality Construction:\u003c\/b\u003e\u003cspan\u003e Built with a gold-plated USB connector and durable yellow pin headers for a solid connection and long-lasting use.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb class=\"\"\u003eBroad OS Compatibility:\u003c\/b\u003e\u003cspan\u003e Offers seamless driver support for modern operating systems including Windows (7\/8\/10\/11),\u003c\/span\u003e\u003cspan\u003e macOS,\u003c\/span\u003e\u003cspan\u003e and Linux.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb class=\"\"\u003eCommon Applications:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003eProgramming Arduino boards (Pro Mini,\u003c\/span\u003e\u003cspan\u003e LilyPad)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCommunicating with ESP8266 and ESP32 Wi-Fi modules\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSerial communication with Raspberry Pi\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eConfiguring or unbricking routers and other networking hardware\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eGeneral-purpose serial communication for debugging electronics projects\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb class=\"\"\u003ePinout:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb class=\"\"\u003e5V:\u003c\/b\u003e\u003cspan\u003e Provides \u003c\/span\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\"\u003e5\u003c\/span\u003e\u003cspan class=\"mord mathnormal\"\u003eV\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003e output from the USB port.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb class=\"\"\u003eVCC:\u003c\/b\u003e\u003cspan\u003e Power output,\u003c\/span\u003e\u003cspan\u003e connected to either \u003c\/span\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\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003e or \u003c\/span\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\"\u003e5\u003c\/span\u003e\u003cspan class=\"mord mathnormal\"\u003eV\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003e based on the jumper setting.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb class=\"\"\u003e3V3:\u003c\/b\u003e\u003cspan\u003e Provides \u003c\/span\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\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003e output.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb class=\"\"\u003eTXD:\u003c\/b\u003e\u003cspan\u003e Transmit Data.\u003c\/span\u003e\u003cspan\u003e Connect to the RX pin of your microcontroller.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb class=\"\"\u003eRXD:\u003c\/b\u003e\u003cspan\u003e Receive Data.\u003c\/span\u003e\u003cspan\u003e Connect to the TX pin of your microcontroller.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb class=\"\"\u003eGND:\u003c\/b\u003e\u003cspan\u003e Common Ground.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb class=\"\"\u003e(RTS \u0026amp; CTS):\u003c\/b\u003e\u003cspan\u003e Pins available for hardware flow control if needed.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb class=\"\"\u003eWhat's Included:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e1 x CH340G USB to TTL Serial Adapter Module\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1 x 4-Pin Female-to-Female Jumper Wire Cable\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb class=\"\"\u003eDriver Download:\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIf your system does not automatically install the driver,\u003c\/span\u003e\u003cspan\u003e you can download it from the official WCH website:\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"Effortlessly%20connect%20your%20microcontroller%20projects%20to%20your%20computer%20with%20our%20reliable%20CH340%20USB%20to%20TTL%20Serial%20Adapter.%20This%20compact%20module%20is%20the%20perfect%20tool%20for%20programming%20Arduino%20Pro%20Mini,%20ESP8266\/ESP32%20modules,%20unbricking%20routers,%20or%20communicating%20with%20any%20TTL%20serial%20device%20directly%20from%20a%20USB%20port.%20%20Based%20on%20the%20stable%20CH340G%20chip,%20this%20adapter%20avoids%20the%20common%20driver%20and%20compatibility%20issues%20found%20in%20older%20chips%20like%20the%20PL2303,%20ensuring%20a%20smooth%20plug-and-play%20experience.%20%20Key%20Features:%20%20Reliable%20CH340G%20Chip:%20Utilizes%20the%20industry-proven%20CH340G%20IC,%20ensuring%20stable%20performance%20and%20broad%20compatibility%20across%20different%20computers%20and%20operating%20systems.%20%20Selectable%20Logic%20Levels:%20Easily%20switch%20between%203.3V%20and%205V%20power%20and%20logic%20levels%20using%20the%20onboard%20jumper.%20This%20makes%20it%20versatile%20enough%20to%20work%20with%20a%20wide%20range%20of%20microcontrollers%20and%20peripherals.%20%20On-board%20Status%20LEDs:%20Features%20Power%20(PWR),%20Transmit%20(TXD),%20and%20Receive%20(RXD)%20LEDs,%20allowing%20you%20to%20visually%20monitor%20the%20module's%20status%20and%20data%20activity%20at%20a%20glance.%20%20High-Quality%20Construction:%20Built%20with%20a%20gold-plated%20USB%20connector%20and%20durable%20yellow%20pin%20headers%20for%20a%20solid%20connection%20and%20long-lasting%20use.%20%20Broad%20OS%20Compatibility:%20Offers%20seamless%20driver%20support%20for%20modern%20operating%20systems%20including%20Windows%20(7\/8\/10\/11),%20macOS,%20and%20Linux.%20%20Common%20Applications:%20%20Programming%20Arduino%20boards%20(Pro%20Mini,%20LilyPad)%20%20Communicating%20with%20ESP8266%20and%20ESP32%20Wi-Fi%20modules%20%20Serial%20communication%20with%20Raspberry%20Pi%20%20Configuring%20or%20unbricking%20routers%20and%20other%20networking%20hardware%20%20General-purpose%20serial%20communication%20for%20debugging%20electronics%20projects%20%20Pinout:%20%205V:%20Provides%205V%20output%20from%20the%20USB%20port.%20%20VCC:%20Power%20output,%20connected%20to%20either%203.3V%20or%205V%20based%20on%20the%20jumper%20setting.%20%203V3:%20Provides%203.3V%20output.%20%20TXD:%20Transmit%20Data.%20Connect%20to%20the%20RX%20pin%20of%20your%20microcontroller.%20%20RXD:%20Receive%20Data.%20Connect%20to%20the%20TX%20pin%20of%20your%20microcontroller.%20%20GND:%20Common%20Ground.%20%20(RTS%20\u0026amp;%20CTS):%20Pins%20available%20for%20hardware%20flow%20control%20if%20needed.%20%20What's%20Included:%20%201%20x%20CH340G%20USB%20to%20TTL%20Serial%20Adapter%20Module%20%201%20x%204-Pin%20Female-to-Female%20Jumper%20Wire%20Cable%20%20Driver%20Download:%20%20If%20your%20system%20does%20not%20automatically%20install%20the%20driver,%20you%20can%20download%20it%20from%20the%20official%20WCH%20website:%20http:\/\/www.wch-ic.com\/downloads\/file\/177.html\"\u003e\u003ccode class=\"\"\u003ehttp:\/\/www.wch-ic.com\/downloads\/file\/177.html\u003c\/code\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":40411308884119,"sku":"","price":20.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/files\/CH340-USB-to-TTL-Serial-Adapter-Main.jpg?v=1757669266"},{"product_id":"ft232rl-fdti-usb-to-ttl-serial-module","title":"FT232RL USB to TTL Serial Adapter Module | Type-C \u0026 Mini USB","description":"\u003ch2 data-path-to-node=\"8\"\u003eThe Reliable Bridge for Your Hardware Projects\u003c\/h2\u003e\n\u003cp data-path-to-node=\"9\"\u003eIf you’ve ever dealt with cheap, clone serial adapters that randomly drop connections or brick your operating system with driver errors, you know the frustration. Your time should be spent coding and building, not troubleshooting USB drivers.\u003c\/p\u003e\n\u003cp data-path-to-node=\"10\"\u003eThe \u003cb data-path-to-node=\"10\" data-index-in-node=\"4\"\u003eFT232RL USB to TTL Serial Adapter Module\u003c\/b\u003e is engineered to solve exactly that problem. Powered by the industry-standard FTDI FT232RL chip, this module guarantees plug-and-play reliability across Windows, Mac, and Linux environments.\u003c\/p\u003e\n\u003cp data-path-to-node=\"10\"\u003e \u003c\/p\u003e\n\u003ch3 data-path-to-node=\"11\"\u003eSeamless Communication, Visual Feedback\u003c\/h3\u003e\n\u003cp data-path-to-node=\"12\"\u003eDebugging is hard enough without having to guess if data is actually transmitting. That’s why this module features integrated \u003cb data-path-to-node=\"12\" data-index-in-node=\"126\"\u003eRXD and TXD LED indicators\u003c\/b\u003e. You get immediate, real-time visual feedback the moment data flows between your PC and your target board.\u003c\/p\u003e\n\u003cp data-path-to-node=\"12\"\u003e \u003c\/p\u003e\n\u003ch3 data-path-to-node=\"13\"\u003eBuilt for Versatility and Extreme Conditions\u003c\/h3\u003e\n\u003cp data-path-to-node=\"14\"\u003eWhether you are reviving a bricked router, programming an Arduino Pro Mini, or interfacing with industrial sensors, this adapter adapts to your needs.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-path-to-node=\"15,0,0\"\u003e\n\u003cb data-path-to-node=\"15,0,0\" data-index-in-node=\"0\"\u003eDual Voltage Ready:\u003c\/b\u003e Easily switch between \u003cb data-path-to-node=\"15,0,0\" data-index-in-node=\"42\"\u003e3.3V and 5V\u003c\/b\u003e logic levels to match your microcontroller safely.\u003c\/li\u003e\n\u003cli data-path-to-node=\"15,1,0\"\u003e\n\u003cb data-path-to-node=\"15,1,0\" data-index-in-node=\"0\"\u003eInterface Options:\u003c\/b\u003e Choose the future-proof \u003cb data-path-to-node=\"15,1,0\" data-index-in-node=\"43\"\u003eType-C\u003c\/b\u003e port for modern laptops or the classic \u003cb data-path-to-node=\"15,1,0\" data-index-in-node=\"89\"\u003eMini USB\u003c\/b\u003e for legacy setups.\u003c\/li\u003e\n\u003cli data-path-to-node=\"15,2,0\"\u003e\n\u003cb data-path-to-node=\"15,2,0\" data-index-in-node=\"0\"\u003eIndustrial Grade Durability:\u003c\/b\u003e Built with high-quality components, this board can withstand extreme temperatures up to \u003cb data-path-to-node=\"15,2,0\" data-index-in-node=\"117\"\u003e105°C\u003c\/b\u003e, making it safe for enclosed or high-heat industrial applications.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Type-c","offer_id":47415311007895,"sku":"21LN000348-TYPEC","price":35.0,"currency_code":"HKD","in_stock":true},{"title":"USB Mini","offer_id":47415311040663,"sku":"21LN000348-MINIUSB","price":28.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/products\/FT232RL-USB-TTL-Adapter-Arduino-Angle.jpg?v=1755180405"},{"product_id":"pwm-dc-motor-drive-module","title":"Mini Dual DC Motor Driver Module with PWM \u0026 H-Bridge","description":"\u003cp\u003e\u003cb\u003eOverview:\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003ePower your smart car, toy robot, or DIY projects with our ultra-compact DC Motor Drive Module. Designed for battery-powered applications, this versatile module operates on a wide 2V-10V supply, capable of independently driving two DC motors or one 4-wire 2-phase stepper motor. Achieve precise forward\/reverse control and variable speed with PWM, with each channel delivering up to 1.5A continuous current and peak currents of 2.5A. Built-in thermal protection ensures automatic recovery from stalling.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eWhy Choose Our Motor Driver Module?\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eSuperior Performance \u0026amp; Efficiency:\u003c\/b\u003e Unlike older L298N modules, our driver uses a professional motor driver chip with built-in low conduction resistance switch MOS. This results in minimal heat generation, eliminating the need for bulky heatsinks, saving space, and significantly increasing energy efficiency – perfect for battery-powered designs. (Say goodbye to L298N's low efficiency, high heat, and potential for burnout!)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eRobust \u0026amp; Reliable:\u003c\/b\u003e With dual 1.5A continuous output (2.5A peak per channel) and an integrated overheat protection circuit (TSD with hysteresis effect), you don't have to worry about motor stalling or burnout. The module automatically recovers after cooling, making it ideal for the common voltage and current ranges found in smart cars.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eUltra-Compact Design:\u003c\/b\u003e Measuring just 24.7mm x 21mm x 5mm and weighing only 2.6g, this module is incredibly small and lightweight. It features near-zero standby current (less than 0.1uA), making it the ideal choice for vehicle models and applications where space and power consumption are critical.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eKey Features \u0026amp; Specifications:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eDriver Type:\u003c\/b\u003e H-bridge dual motor drive\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMotor Compatibility:\u003c\/b\u003e Drives two DC motors or one 4-wire 2-phase stepper motor\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSupply Voltage:\u003c\/b\u003e 2V - 10V\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eControl Signal Voltage:\u003c\/b\u003e 1.8V - 7V\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOutput Current:\u003c\/b\u003e 1.5A continuous per channel (2.5A peak)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eStandby Current:\u003c\/b\u003e Less than 0.1uA (ultra-low)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSafety Features:\u003c\/b\u003e\n\u003cul\u003e\n\u003cli\u003eBuilt-in common conduction circuit prevents motor malfunction if inputs are suspended.\u003c\/li\u003e\n\u003cli\u003eIntegrated overheat protection circuit (TSD) with hysteresis effect.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDimensions (LxWxH):\u003c\/b\u003e 24.7mm x 21mm x 5mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMounting Hole Diameter:\u003c\/b\u003e 2 mm\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":40467141820567,"sku":"","price":15.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/products\/pwm-dc-motor-driver-module-l298n-angled.jpg?v=1755180834"},{"product_id":"esp-12e-motor-shield-board-for-esp-12e","title":"L293D Motor Drive Shield for NodeMCU ESP-12E ESP8266 WiFi Car","description":"\u003cp data-path-to-node=\"6\"\u003eUnlock the mobility of your IoT projects with the \u003cb\u003eESP-12E Motor Shield\u003c\/b\u003e. Built around the robust L293D driver chip, this expansion board is designed specifically for the NodeMCU ESP-12E Development Kit. It allows you to drive two DC motors directly while retaining access to all GPIO, SPI, and UART pins—perfect for building WiFi-controlled RC cars, smart robots, or home automation devices.\u003c\/p\u003e\n\u003cp data-path-to-node=\"7\"\u003e\u003cb\u003eKey Features\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-path-to-node=\"8,0,0\"\u003e\n\u003cb\u003eSeamless Compatibility:\u003c\/b\u003e Directly mounts the ESP-12E Dev Kit (NodeMCU). \u003ci\u003eNote: Please align the antenna direction correctly when mounting.\u003c\/i\u003e\n\u003c\/li\u003e\n\u003cli data-path-to-node=\"8,1,0\"\u003e\n\u003cb\u003eDual Motor Control:\u003c\/b\u003e High-power L293D H-Bridge driver controls two DC motors simultaneously.\u003c\/li\u003e\n\u003cli data-path-to-node=\"8,2,0\"\u003e\n\u003cb\u003eFull Pin Access:\u003c\/b\u003e Expands all ESP-12E functional pins (SPI, UART, GPIO, AI) and 3.3V power for easy sensor integration.\u003c\/li\u003e\n\u003cli data-path-to-node=\"8,3,0\"\u003e\n\u003cb\u003eFlexible Power Options:\u003c\/b\u003e Supports separate power supplies for motors and logic, or a single power source via the onboard jumper (VIN\/VM short).\u003c\/li\u003e\n\u003cli data-path-to-node=\"8,4,0\"\u003e\n\u003cb\u003eOnboard Power Switch:\u003c\/b\u003e Conveniently turn your project on\/off without unplugging cables.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-path-to-node=\"9\"\u003e\u003cb\u003eTechnical Specifications\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-path-to-node=\"10,0,0\"\u003e\n\u003cb\u003eDriver Chip:\u003c\/b\u003e L293D (Dual H-Bridge)\u003c\/li\u003e\n\u003cli data-path-to-node=\"10,1,0\"\u003e\n\u003cb\u003eMotor Supply (VM):\u003c\/b\u003e 4.5V – 36V\u003c\/li\u003e\n\u003cli data-path-to-node=\"10,2,0\"\u003e\n\u003cb\u003eControl Supply (VIN):\u003c\/b\u003e 4.5V – 9V (10V Max)\u003c\/li\u003e\n\u003cli data-path-to-node=\"10,3,0\"\u003e\n\u003cb\u003eDriving Current:\u003c\/b\u003e ≤1.2A per channel\u003c\/li\u003e\n\u003cli data-path-to-node=\"10,4,0\"\u003e\n\u003cb\u003eLogic Current:\u003c\/b\u003e ≤60mA\u003c\/li\u003e\n\u003cli data-path-to-node=\"10,5,0\"\u003e\n\u003cb\u003eControl Pins:\u003c\/b\u003e\n\u003cul\u003e\n\u003cli data-path-to-node=\"10,5,1,0,0\"\u003eMotor A: D1, D3\u003c\/li\u003e\n\u003cli data-path-to-node=\"10,5,1,1,0\"\u003eMotor B: D2, D4\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli data-path-to-node=\"10,6,0\"\u003e\n\u003cb\u003eWorking Temperature:\u003c\/b\u003e -25℃ to +125℃\u003c\/li\u003e\n\u003cli data-path-to-node=\"10,7,0\"\u003e\n\u003cb\u003eWeight:\u003c\/b\u003e Approx. 20g\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-path-to-node=\"11\"\u003e\u003cb\u003ePower Supply Guide\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-path-to-node=\"12,0,0\"\u003e\n\u003cb\u003eSingle Power Source:\u003c\/b\u003e Short the \u003ccode\u003eVM\u003c\/code\u003e and \u003ccode\u003eVIN\u003c\/code\u003e pins with the jumper block. Input voltage must be \u003cb\u003e4.5V – 9V\u003c\/b\u003e.\u003c\/li\u003e\n\u003cli data-path-to-node=\"12,1,0\"\u003e\n\u003cb\u003eDual Power Source:\u003c\/b\u003e Remove the jumper. Connect motor power (4.5V~36V) to \u003ccode\u003eVM\u003c\/code\u003e and logic power (4.5V~9V) to \u003ccode\u003eVIN\u003c\/code\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":41421177716887,"sku":"21PS001336","price":25.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/products\/esp-12e-motor-shield-l293d-front-view.jpg?v=1763979282"},{"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":"dc-to-dc-buck-step-down-module","title":"LM2596 DC-DC Adjustable Step-Down Module with LED Voltmeter (3A)","description":"\u003ch2 data-path-to-node=\"7\"\u003e\u003cb data-path-to-node=\"7\" data-index-in-node=\"0\"\u003eReliable Power Conversion for Every Project\u003c\/b\u003e\u003c\/h2\u003e\n\u003cp data-path-to-node=\"8\"\u003eFluctuating voltage is the enemy of sensitive electronics. Whether you are building a custom robotic arm, prototyping a new circuit, or modifying your vehicle's power supply, delivering the exact voltage required is critical. The LM2596 DC-DC Buck Converter is designed to solve exactly this problem, offering a robust and highly stable power supply solution. Sourced with the rigorous standards of Sun Cheong Computer Co. Ltd.'s 20+ years of hardware expertise, you can trust this component to keep your devices running safely.\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\"\u003eReal-Time Voltage Monitoring at a Glance\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp data-path-to-node=\"10\"\u003eForget the hassle of constantly probing your circuit with an external multimeter. This module features a built-in, bright LED voltmeter that displays your voltage in real-time. This allows for rapid, on-the-fly adjustments during testing and ensures your connected components are receiving the precise power they need to function optimally.\u003c\/p\u003e\n\u003cp data-path-to-node=\"10\"\u003e \u003c\/p\u003e\n\u003ch3 data-path-to-node=\"11\"\u003e\u003cb data-path-to-node=\"11\" data-index-in-node=\"0\"\u003eVersatile and Built to Last\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp data-path-to-node=\"12\"\u003eDesigned on a high-quality FR4 PCB, this step-down module is built to withstand rigorous use in both hobbyist workshops and industrial environments. It efficiently handles up to 3A of output current with a maximum conversion efficiency of 90%, minimizing heat generation and maximizing performance. It seamlessly handles common conversions like 24V to 12V, 12V to 5V, or 12V to 3.3V, making it an indispensable tool in any engineer's kit.\u003c\/p\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":41668152983703,"sku":"21PA000482","price":35.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/products\/lm2596-step-down-module-front-view.jpg?v=1775706560"},{"product_id":"esp32-development-board-wifi-bluetooth","title":"ESP32 DEVKIT V1 WiFi \u0026 Bluetooth Development Board (30-Pin CH9102)","description":"\u003cp\u003e\u003cb\u003eUnleash your next IoT project with the powerful and versatile ESP32 DEVKIT V1 development board.\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThis board is built around the renowned ESP-WROOM-32 module, making it a compact and cost-effective solution for everything from smart home devices to wearable electronics. With integrated Wi-Fi, dual-mode Bluetooth, and a powerful dual-core processor, the possibilities are endless.\u003c\/p\u003e\n\u003cp\u003eThis version uses the stable and reliable CH9102 USB-to-serial chip for fast and easy programming and debugging directly from your computer via Micro-USB.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eKey Features:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003ePowerful Dual-Core Processor:\u003c\/b\u003e Features two CPU cores that can be individually controlled, with an adjustable clock frequency from 80 MHz to 240 MHz.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eIntegrated Wireless:\u003c\/b\u003e Combines Wi-Fi (802.11 b\/g\/n) and dual-mode Bluetooth (Classic \u0026amp; BLE) on a single chip, perfect for creating connected devices.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eVersatile \u0026amp; Scalable:\u003c\/b\u003e Packed with peripherals including capacitive touch sensors, Hall sensors, SD card interface, UART, SPI, I2C, and more.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eUltra-Low Power Consumption:\u003c\/b\u003e With a sleep current of less than 5µA, it's ideal for battery-powered and wearable applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eEasy to Program:\u003c\/b\u003e Fully compatible with the Arduino IDE, and also supports Lua (via LuaNode) and MicroPython development with the FreeRTOS operating system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eBreadboard-Friendly:\u003c\/b\u003e The 30-pin design is compact (approx. 52mm x 29mm) and fits perfectly on a standard breadboard for easy prototyping.\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\u003eMCU:\u003c\/b\u003e ESP-WROOM-32\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eProcessor:\u003c\/b\u003e Dual-Core Tensilica LX6\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWireless:\u003c\/b\u003e Wi-Fi 802.11 b\/g\/n \u0026amp; Bluetooth v4.2 BR\/EDR and BLE\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eUSB-to-Serial Chip:\u003c\/b\u003e CH9102\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePins:\u003c\/b\u003e 30\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOperating Voltage:\u003c\/b\u003e 3.3V\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInterface:\u003c\/b\u003e Micro-USB\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":41683744850071,"sku":"","price":65.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/products\/esp32-devkit-v1-30-pin-ch9102-board.jpg?v=1753975975"},{"product_id":"esp32-cam-development-board-with-ov2640-camera","title":"ESP32-CAM WiFi \u0026 Bluetooth Development Board with OV2640 Camera","description":"\u003cp\u003eUnlock the world of IoT and video streaming with the powerful and compact \u003cb\u003eESP32-CAM\u003c\/b\u003e development board. 📸 This all-in-one module combines an ESP32 microcontroller with \u003cb\u003eWiFi\u003c\/b\u003e, \u003cb\u003eBluetooth\u003c\/b\u003e, and an \u003cb\u003eOV2640 camera\u003c\/b\u003e, making it the perfect solution for your wireless video projects.\u003c\/p\u003e\n\u003cp\u003eWith its low-power dual-core processor and support for a MicroSD card, you can easily build projects ranging from a DIY home security camera to a remote weather station or a time-lapse photography rig. It's fully featured and ready for your next big idea.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eKey Features:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003ePowerful Dual-Core Processor:\u003c\/b\u003e Runs on a 32-bit CPU with a main frequency up to 240MHz (600 DMIPS), providing plenty of power for image processing and other tasks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eIntegrated WiFi \u0026amp; Bluetooth:\u003c\/b\u003e Built-in wireless connectivity for easy image uploads, remote control, and integration into your smart home or IoT network.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOV2640 Camera Included:\u003c\/b\u003e Comes bundled with the popular 2-megapixel OV2640 camera module, so you can start your video projects right out of the box.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOnboard MicroSD Card Slot:\u003c\/b\u003e Supports TF (MicroSD) cards up to 4GB for conveniently storing images and videos locally.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eRich Peripheral Support:\u003c\/b\u003e Features a wide range of interfaces including UART, SPI, I2C, and PWM, allowing you to connect various sensors and peripherals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFlexible \u0026amp; Low-Power:\u003c\/b\u003e Supports multiple sleep modes, making it ideal for battery-powered applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eReady for Development:\u003c\/b\u003e Supports secondary development with embedded Lwip, FreeRTOS, and Smart Config for quick network setup.\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\u003e1 x ESP32-CAM Development Board\u003c\/li\u003e\n\u003cli\u003e1 x OV2640 Camera Module\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":41683775062167,"sku":"21CM000383","price":78.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/products\/esp32-cam-board-with-ov2640-camera.jpg?v=1753424168"},{"product_id":"5pcs-button-module-for-arduino","title":"5x Arduino 12x12mm Big Button Modules with Hat - High Output","description":"\u003cp\u003eElevate your Arduino projects with our 5-piece set of 12x12mm Big Button Modules! These versatile light touch switch modules are designed for seamless integration and offer a reliable high-level digital output when pressed, and low when released. Perfect for a wide range of applications from interactive installations to control panels.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eKey Features:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eSet of 5 Modules:\u003c\/b\u003e Get a complete set of five distinctively coloured modules (as shown in photos: red, yellow, blue, black, white) to add variety and functionality to multiple projects.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLarge 12x12mm Button:\u003c\/b\u003e Easy to press and highly responsive, providing clear tactile feedback.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHigh-Level Output:\u003c\/b\u003e Delivers a digital high signal when pressed, simplifying connection and programming with your Arduino board.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCompact Design:\u003c\/b\u003e Each module measures a small 20 x 12mm, making them ideal for space-constrained projects.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWide Voltage Compatibility:\u003c\/b\u003e Operates smoothly with 3.5V to 5V power supplies, suitable for most Arduino models.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSimple 3-Pin Interface:\u003c\/b\u003e Features a standard S-V-G (Signal, Voltage, Ground) interface for quick and easy wiring.\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\u003eName:\u003c\/b\u003e Key Module\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eQuantity:\u003c\/b\u003e 5 pieces\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eButton Size:\u003c\/b\u003e 12mm x 12mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eModule Dimensions:\u003c\/b\u003e 20mm x 12mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eColour:\u003c\/b\u003e Assorted (as per product photos)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOperating Voltage:\u003c\/b\u003e 3.5V - 5V\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOutput Type:\u003c\/b\u003e Digital Level (High when pressed, Low when released)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInterface:\u003c\/b\u003e 3-Pin (S-V-G)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":41892005249175,"sku":"21PS001229","price":18.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/products\/arduino-12x12mm-big-button-modules-multicolor-set.jpg?v=1754577089"},{"product_id":"max7219-module-for-arduino-red","title":"MAX7219 Red 4-in-1 Dot Matrix Display Module for Arduino","description":"\u003cp\u003e\u003cb\u003eOverview:\u003c\/b\u003e Expand your Arduino projects with the versatile MAX7219 4-in-1 Dot Matrix Display Module. This compact and powerful module features four 8x8 dot matrix common cathode displays, perfect for creating custom scrolling text, visual indicators, or interactive interfaces. It's designed for easy integration and supports cascading multiple modules to create larger displays.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eKey Features:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eIntegrated Display:\u003c\/b\u003e Drives a single 8x8 dot matrix common cathode or up to four cascaded modules.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eArduino Compatible:\u003c\/b\u003e Seamlessly connects with Arduino and 51 microcontrollers for rapid prototyping.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCascadable Design:\u003c\/b\u003e Module includes input and output interfaces, allowing you to easily daisy-chain multiple modules for extended displays.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eEasy Connection:\u003c\/b\u003e Simply connect the input port to your CPU for a single module setup. For multiple modules, connect the first module's output to the second module's input, and so on.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCompact Size:\u003c\/b\u003e Dimensions of 13cm x 3.2cm x 1.3cm (approximately 5.1 x 1.3 x 0.5 inches).\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSecure Mounting:\u003c\/b\u003e Features 64 pre-drilled holes (3mm diameter) for secure fixing in your projects.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOperating Voltage:\u003c\/b\u003e Operates at a standard 5V, making it compatible with most microcontrollers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePackage Includes:\u003c\/b\u003e 1 Set (Module and 5P Line).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eExample Connection (for 51 Microcontrollers):\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eVCC \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\u003eGND \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\u003cli\u003eDIN \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 P2.2\u003c\/li\u003e\n\u003cli\u003eCS \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 P2.1\u003c\/li\u003e\n\u003cli\u003eCLK \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 P2.0\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eNote:\u003c\/b\u003e Manual measurements may have a slight error (0-2 cm). Due to monitor differences, the actual color of the item may vary slightly from the picture.\u003c\/p\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":41892062036119,"sku":"","price":55.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/products\/max7219-dot-matrix-module-arduino-front.jpg?v=1754577385"},{"product_id":"httm-touch-button-sensor-module-3-6v","title":"HTTM Touch Button Sensor Module (3-6V) with Multi-Color LED","description":"\u003cp\u003e\u003cb\u003eExperience Innovative Touch! HTTM Series Capacitive Touch Switch Module\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eLooking for a reliable and highly responsive touch solution? The HTTM series capacitive touch button module is your ideal choice! This module offers a variety of vibrant LED backlit color options, including Red, Blue, Yellow, Green, and a stunning RGB colorful flashing mode, making your projects visually more appealing. Whether for smart homes, interactive displays, or creative electronic projects, the HTTM module delivers exceptional performance and design flexibility.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eWhy Choose the HTTM Touch Module?\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eDurable \u0026amp; Infinite Lifespan:\u003c\/b\u003e With no mechanical components, it won't wear out, fundamentally solving the lifespan issues of traditional buttons and significantly reducing long-term maintenance costs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWaterproof \u0026amp; Moisture-proof Design:\u003c\/b\u003e The sensing part can be easily placed behind any insulating layer (typically glass or plastic), allowing for sealed keyboards that are effectively moisture-proof and waterproof, enhancing product durability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFlexible \u0026amp; Free Design:\u003c\/b\u003e Panel patterns, button sizes and shapes, characters, trademarks, and perspective windows can all be designed as desired, giving your product a stronger overall aesthetic and personalized touch.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHigh Reliability:\u003c\/b\u003e Compared to physical buttons, touch keys are less prone to damage, improving product stability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAdjustable Output Mode:\u003c\/b\u003e You can modify the resistor on the back of the module to adjust the signal output to either latched or level-hold mode, meeting diverse application requirements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWide Voltage Input:\u003c\/b\u003e Supports a wide voltage input range of +2.7V to +6V, with a +3.3V signal output, capable of directly driving relays, optocouplers, LED lights, and other components, making it widely applicable.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eExcellent Performance:\u003c\/b\u003e Wide operating temperature range (-30℃ to +70℃), sensitive touch response with no lag, delay, flickering, or other adverse reactions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eStrong Anti-Interference:\u003c\/b\u003e Built-in advanced anti-jamming algorithm ensures excellent anti-interference performance even in complex environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eProduct Parameters:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eOperating Voltage:\u003c\/b\u003e +2.7V to +6V\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOperating Temperature:\u003c\/b\u003e -30℃ to +70℃\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOUT Pin Output Voltage:\u003c\/b\u003e +3.3V ±0.1V\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOUT Pin Maximum Output Current:\u003c\/b\u003e 500mA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003ePlease Note:\u003c\/b\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDue to differences in shooting environment and display settings, the actual product color may vary slightly from the images. Please refer to the actual product for its true color.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Red","offer_id":41996637405335,"sku":"","price":15.0,"currency_code":"HKD","in_stock":true},{"title":"Yellow","offer_id":41996637438103,"sku":"","price":15.0,"currency_code":"HKD","in_stock":true},{"title":"Green","offer_id":41996637470871,"sku":"","price":15.0,"currency_code":"HKD","in_stock":true},{"title":"Blue","offer_id":41996637503639,"sku":"","price":15.0,"currency_code":"HKD","in_stock":true},{"title":"Colorful","offer_id":41996637536407,"sku":"","price":19.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/products\/HTTM-Touch-Button-Sensor-Module-Colors.jpg?v=1753602728"},{"product_id":"gy-4466-electret-adjustable-microphone-amplifier-module","title":"GY-4466 MAX4466 Electret Microphone Amplifier Module - Adjustable Gain","description":"\u003cp\u003e\u003cb\u003eUnlock Clear Audio for Your Projects with the GY-4466 MAX4466 Microphone Amplifier!\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eBring the power of sound to your electronic projects with this high-quality electret microphone amplifier module. Fully assembled and tested, this board features a 20-20KHz electret microphone and the exceptional Maxim MAX4466 op-amp, specifically designed for pristine audio amplification.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eWhy Choose the GY-4466 MAX4466?\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eSuperior Audio Quality:\u003c\/b\u003e Experience clear, low-noise audio thanks to the MAX4466's excellent power supply noise rejection. 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For optimal performance, use a \"quiet\" supply like your Arduino's 3.3V.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAudio Output (OUT Pin):\u003c\/b\u003e The audio waveform is available at the OUT pin with a DC bias of VCC\/2.\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eAC Coupled Audio:\u003c\/b\u003e If your audio equipment requires AC coupling, simply place a 100uF capacitor between the OUT pin and your device's input.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDirect Microcontroller Connection:\u003c\/b\u003e For connecting directly to a microcontroller ADC pin, no amplifier or decoupling capacitor is needed – just connect the OUT pin directly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eNote on Speakers:\u003c\/b\u003e The OUT pin is not designed to drive speakers directly. For speaker output, an additional audio amplifier (like a 3.7W stereo amp) is required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eEnhance Your Projects:\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eFor advanced audio-reactive projects, consider using an FFT driver library to translate audio input into frequencies, unlocking exciting possibilities for light shows, interactive displays, and more.\u003c\/p\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":41997336019095,"sku":"","price":20.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/products\/GY-4466-MAX4466-Sound-Sensor-Front-View-Pins.jpg?v=1754579118"},{"product_id":"5v-led-traffic-light-module","title":"5V LED Traffic Light Module | Red Yellow Green LEDs for Arduino DIY","description":"\u003ch4 data-start=\"551\" data-end=\"627\"\u003e\u003cstrong data-start=\"556\" data-end=\"625\"\u003e🚦 Realistic Traffic Light Simulation for Learning \u0026amp; DIY Projects\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp data-start=\"629\" data-end=\"985\"\u003eBring your electronic projects to life with this \u003cstrong data-start=\"678\" data-end=\"709\"\u003e5V LED Traffic Light Module\u003c\/strong\u003e, designed for \u003cstrong data-start=\"724\" data-end=\"777\"\u003eArduino, Raspberry Pi, and other microcontrollers\u003c\/strong\u003e.\u003cbr data-start=\"778\" data-end=\"781\"\u003ePerfect for \u003cstrong data-start=\"793\" data-end=\"811\"\u003eSTEM education\u003c\/strong\u003e, \u003cstrong data-start=\"813\" data-end=\"827\"\u003eDIY makers\u003c\/strong\u003e, and \u003cstrong data-start=\"833\" data-end=\"858\"\u003eprototype development\u003c\/strong\u003e, this module replicates a real-world traffic light system with three independently controlled LEDs — Red, Yellow, and Green.\u003c\/p\u003e\n\u003chr data-start=\"987\" data-end=\"990\"\u003e\n\u003ch4 data-start=\"992\" data-end=\"1018\"\u003e\u003cstrong data-start=\"997\" data-end=\"1016\"\u003e✨ Key Features:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli data-start=\"1022\" data-end=\"1153\"\u003e\n\u003cstrong data-start=\"1022\" data-end=\"1052\"\u003eIndependent Signal Control\u003c\/strong\u003e – Each LED (R\/Y\/G) has a dedicated signal pin, allowing full control through your microcontroller.\u003c\/li\u003e\n\u003cli data-start=\"1156\" data-end=\"1287\"\u003e\n\u003cstrong data-start=\"1156\" data-end=\"1183\"\u003eStandard 5V Power Input\u003c\/strong\u003e – Fully compatible with Arduino UNO, Mega, and most 5V logic systems. 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Yellow = medium; Green = slightly dimmer (for realism)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1982\" data-end=\"2016\"\u003e\n\u003ctd data-start=\"1982\" data-end=\"1997\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"1984\" data-end=\"1996\"\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"1997\" data-end=\"2016\" data-col-size=\"md\"\u003eABS + Metal PCB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2017\" data-end=\"2075\"\u003e\n\u003ctd data-start=\"2017\" data-end=\"2040\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"2019\" data-end=\"2039\"\u003ePackage Includes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-start=\"2040\" data-end=\"2075\"\u003e1 × 5V LED Traffic Light Module\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=\"2077\" data-end=\"2080\"\u003e\n\u003ch4 data-start=\"2082\" data-end=\"2106\"\u003e\u003cstrong data-start=\"2087\" data-end=\"2104\"\u003e💡 Ideal For:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli data-start=\"2109\" data-end=\"2142\"\u003eArduino \u0026amp; 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This \u003cb data-path-to-node=\"5\" data-index-in-node=\"172\"\u003eVoltage to PWM Converter Module\u003c\/b\u003e acts as the perfect translator for your circuits, taking a variable analog DC voltage and converting it into a clean, stable Pulse Width Modulation (PWM) digital signal.\u003c\/p\u003e\n\u003cp data-path-to-node=\"6\"\u003eWhether you are designing a custom motor control system, integrating industrial sensors, or building complex automated workflows, this module ensures your signal integrity remains intact from input to output.\u003c\/p\u003e\n\u003cp data-path-to-node=\"6\"\u003e \u003c\/p\u003e\n\u003ch3 data-path-to-node=\"7\"\u003ePrecision Control for Your Electronic Projects\u003c\/h3\u003e\n\u003cp data-path-to-node=\"8\"\u003eAccuracy is non-negotiable when dealing with signal conversion. 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That is why this module features a built-in trimming potentiometer, allowing you to manually calibrate the accuracy and fine-tune the duty cycle matching to your specific application's requirements.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3 data-path-to-node=\"10\"\u003eDesigned for Reliability and Easy Integration\u003c\/h3\u003e\n\u003cp data-path-to-node=\"11\"\u003eEngineered for rapid prototyping and permanent installations alike, the compact PCB features secure screw terminal blocks for solid, vibration-resistant connections. Operating on a flexible DC 5V-12V power supply, it easily shares power with most standard logic boards, Arduino setups, or Raspberry Pi environments. Simply connect your power, apply your control voltage to the VIN terminal, and retrieve your 5V amplitude PWM signal ready for your logic circuits.\u003c\/p\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":42048491356311,"sku":"21PS001954","price":25.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/products\/voltage-to-pwm-converter-module-top-view.jpg?v=1775285461"},{"product_id":"pwm-to-voltage-module-0-10v","title":"PWM to 0-10V Voltage Converter Module | Digital to Analog for PLC \u0026 MCU","description":"\u003ch2 data-path-to-node=\"4\"\u003e\u003cb data-path-to-node=\"4\" data-index-in-node=\"0\"\u003eBridge Digital and Analog Systems with Ease\u003c\/b\u003e\u003c\/h2\u003e\n\u003cp data-path-to-node=\"4\"\u003eIntegrating modern microcontrollers with legacy industrial equipment can be a frustrating bottleneck. The \u003cb data-path-to-node=\"4\" data-index-in-node=\"150\"\u003eLC-LM358-PWM2V Module\u003c\/b\u003e solves this by providing a direct, reliable bridge. By converting digital PWM signals into smooth, readable 0-10V analog voltage, you can effortlessly control inverters, motors, and lighting systems without rewriting complex logic.\u003c\/p\u003e\n\u003cp data-path-to-node=\"4\"\u003e \u003c\/p\u003e\n\u003ch3 data-path-to-node=\"5\"\u003e\u003cb data-path-to-node=\"5\" data-index-in-node=\"0\"\u003ePrecision Control at Your Fingertips\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp data-path-to-node=\"5\"\u003eAccuracy matters in industrial automation and DIY electronics. This module features a \u003cb data-path-to-node=\"5\" data-index-in-node=\"123\"\u003ebuilt-in calibration potentiometer\u003c\/b\u003e, allowing you to fine-tune the output voltage to match your exact duty cycle requirements. Whether you are running a 5V MCU setup or a 24V industrial PLC, the onboard short-circuit jumper lets you select the perfect input level range instantly.\u003c\/p\u003e\n\u003cp data-path-to-node=\"5\"\u003e \u003c\/p\u003e\n\u003ch3 data-path-to-node=\"6\"\u003e\u003cb data-path-to-node=\"6\" data-index-in-node=\"0\"\u003eCompact, MCU-Embedded Reliability\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp data-path-to-node=\"6\"\u003eSpace is often limited in control panels and custom project enclosures. Engineered with \u003cb data-path-to-node=\"6\" data-index-in-node=\"122\"\u003eMCU embedded technology\u003c\/b\u003e, this module delivers high-performance conversion in a highly compact footprint. 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This tester is built for consistent accuracy and rugged daily use, fully supported by our comprehensive O2O shopping experience—buy online or pick up directly at our Sham Shui Po storefront.\u003c\/p\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":42110290919575,"sku":"21PS001817","price":25.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/products\/1-8s-lipo-battery-tester-front-display.jpg?v=1777557629"},{"product_id":"as608-fingerprint-reader-sensor-module","title":"AS608 Fingerprint Reader Sensor Module for Arduino","description":"\u003cp dir=\"auto\"\u003e\u003cstrong\u003eProduct Description:\u003c\/strong\u003e\u003cbr\u003eEnhance your Arduino projects with the AS608 Fingerprint Reader Sensor Module, designed for secure and efficient fingerprint recognition. This optical fingerprint module features a high-resolution 500dpi sensor, ensuring accurate and fast fingerprint detection in under 1.0 second. Perfect for building smart locks, access control systems, and other security applications, the AS608 module offers seamless integration via its Jst 2.0 Ph 8 Pin Connector Plug for serial communication.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eHow It Works:\u003c\/strong\u003e\u003cbr\u003eThe AS608 module uses an advanced fingerprint algorithm to extract and process fingerprint features from scanned images. It supports two main processes:\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eFingerprint Registration:\u003c\/strong\u003e Register a fingerprint by scanning it twice. The module processes and stores the synthesized fingerprint data securely.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFingerprint Matching:\u003c\/strong\u003e Verify fingerprints in two modes:\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\n\u003cstrong\u003e1:1 Comparison:\u003c\/strong\u003e Match a scanned fingerprint against a specific stored fingerprint.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1:N Search:\u003c\/strong\u003e Search for a match among multiple stored fingerprints.\u003cbr\u003eThe module delivers reliable pass\/fail results for authentication.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eProduct Specifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eResolution:\u003c\/strong\u003e 500dpi\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupply Voltage:\u003c\/strong\u003e 3.3V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupply Current:\u003c\/strong\u003e \u0026lt;60mA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePeak Current:\u003c\/strong\u003e \u0026lt;60mA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFingerprint Image Entry Time:\u003c\/strong\u003e \u0026lt;1.0 seconds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWindow Area:\u003c\/strong\u003e 15.3 x 18.2 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommunication Interface:\u003c\/strong\u003e Jst 2.0 Ph 8 Pin Connector Plug\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003eIdeal for hobbyists, developers, and businesses looking to integrate biometric security into their projects.\u003c\/p\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":42223274229911,"sku":"21PS001424","price":99.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/files\/AS608-Fingerprint-Reader-Sensor-Module-Component.jpg?v=1754404733"},{"product_id":"hc-12-433mhz-wireless-serial-module","title":"HC-12 433MHz Wireless Serial Module - 1000m Range SI4463","description":"\u003cp\u003eUnlock long-range wireless communication with the HC-12 433MHz Wireless Serial Module. Perfect for IoT, smart home, and remote control applications, this powerful module offers reliable data transmission up to 1000 meters, making it an excellent alternative to Bluetooth for projects requiring extended reach.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eKey Features\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eExtended Range:\u003c\/b\u003e Achieve impressive communication distances of up to 1000 meters (adjustable, default 600m) with an air baud rate of 5000 BPS.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWide Operating Frequency:\u003c\/b\u003e Supports 100 communication channels across the 433.4 - 473.0 MHz frequency range.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAdjustable Transmit Power:\u003c\/b\u003e Features a maximum 100 mW fired power, which can be configured to suit your application's needs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFlexible Power Supply:\u003c\/b\u003e Operates on a supply voltage of 3.2V to 5.5V. For continuous emission, a 1N4007 diode is recommended when voltage exceeds 4.5V to prevent LDO overheating.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLow Idle Current:\u003c\/b\u003e Efficient design with a default idle current of just 16mA (current varies by operating mode).\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCompact Design:\u003c\/b\u003e Small footprint (27.8mm x 14.4mm x 4mm) ideal for integration into various projects.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSoftware Upgradable:\u003c\/b\u003e Supports future software enhancements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFactory Defaults:\u003c\/b\u003e Comes pre-configured with FU3 working mode, 9600 BPS baud rate, and CH001 communication channel (433.4 MHz).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003ePackage Includes:\u003c\/b\u003e 1 x HC-12 SI4463 433Mhz Wireless Serial Port Module (1000m Range)\u003c\/p\u003e\n\u003cp\u003eExplore the possibilities of long-distance wireless connectivity with the HC-12. Refer to the HC-12 Tutorial for detailed setup and programming guides.\u003c\/p\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":42361410060439,"sku":"21PS001756","price":75.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/products\/hc12-wireless-module-antenna.jpg?v=1754399299"},{"product_id":"dc-to-dc-step-down-module","title":"MP1584EN 3A Adjustable DC-DC Step-Down Buck Converter","description":"\u003cp\u003eMeet the \u003cb\u003eMP1584EN Mini DC-DC Step-Down Module\u003c\/b\u003e, a compact and highly efficient power regulator perfect for your electronics projects. This buck converter takes a higher input voltage and safely steps it down to a lower, adjustable output voltage. Its small size and high switching frequency make it an ideal replacement for older, bulkier regulators like the LM2596.\u003c\/p\u003e\n\u003cp\u003eWhether you're powering an Arduino, creating a custom battery-powered device, or need precise voltage for your DIY project, this module delivers stable and reliable performance.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cb\u003eKey Features\u003c\/b\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eHigh-Efficiency Conversion:\u003c\/b\u003e With up to 92% conversion efficiency, it minimizes power loss and heat generation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWide Voltage Range:\u003c\/b\u003e Accepts an input voltage from \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\"\u003e4.5\u003c\/span\u003e\u003cspan class=\"mord mathnormal\"\u003eV\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e to \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\"\u003e28\u003c\/span\u003e\u003cspan class=\"mord mathnormal\"\u003eV\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e and provides an adjustable output from \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\"\u003e0.8\u003c\/span\u003e\u003cspan class=\"mord mathnormal\"\u003eV\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e to \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\"\u003e20\u003c\/span\u003e\u003cspan class=\"mord mathnormal\"\u003eV\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAdjustable Output:\u003c\/b\u003e Features an onboard potentiometer for fine-tuning the output voltage to your exact needs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCompact \u0026amp; Lightweight:\u003c\/b\u003e Measuring 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\"\u003e22\u003c\/span\u003e\u003cspan class=\"mord mathnormal\"\u003emm\u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"mspace newline\"\u003e\u003c\/span\u003e\u003cspan class=\"base\"\u003e\u003cspan class=\"strut\"\u003e\u003c\/span\u003e\u003cspan class=\"mord mathnormal\"\u003et\u003c\/span\u003e\u003cspan class=\"mord mathnormal\"\u003eim\u003c\/span\u003e\u003cspan class=\"mord mathnormal\"\u003ees\u003c\/span\u003e\u003cspan class=\"mord\"\u003e17\u003c\/span\u003e\u003cspan class=\"mord mathnormal\"\u003emm\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e, it fits easily into space-constrained projects.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHigh Switching Frequency:\u003c\/b\u003e A \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\"\u003e1.5\u003c\/span\u003e\u003cspan class=\"mord mathnormal\"\u003eM\u003c\/span\u003e\u003cspan class=\"mord mathnormal\"\u003eHz\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e switching frequency allows for smaller external inductors and capacitors, contributing to its miniature size.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cb\u003eCommon Applications\u003c\/b\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eDIY mobile power supplies\u003c\/li\u003e\n\u003cli\u003ePowering microcontrollers like Arduino, ESP32, and Raspberry Pi\u003c\/li\u003e\n\u003cli\u003eBattery-powered cars, drones, and robotics\u003c\/li\u003e\n\u003cli\u003eLED lighting drivers\u003c\/li\u003e\n\u003cli\u003eTelecommunication and networking equipment\u003c\/li\u003e\n\u003cli\u003eAny project requiring efficient voltage reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cb\u003eSpecifications\u003c\/b\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eChip:\u003c\/b\u003e MP1584EN\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInput 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\"\u003e4.5\u003c\/span\u003e\u003cspan class=\"mord mathnormal\"\u003eV\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\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\"\u003e28\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\u003eOutput 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\"\u003e0.8\u003c\/span\u003e\u003cspan class=\"mord mathnormal\"\u003eV\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\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\"\u003e20\u003c\/span\u003e\u003cspan class=\"mord mathnormal\"\u003eV\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e (Adjustable)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOutput Current:\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\u003c\/span\u003e\u003cspan class=\"mord mathnormal\"\u003eA\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e (Max), \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\"\u003e1.8\u003c\/span\u003e\u003cspan class=\"mord mathnormal\"\u003eA\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e (Recommended continuous)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eConversion Efficiency:\u003c\/b\u003e 92% (Max)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSwitching Frequency:\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\"\u003e1.5\u003c\/span\u003e\u003cspan class=\"mord mathnormal\"\u003eM\u003c\/span\u003e\u003cspan class=\"mord mathnormal\"\u003eHz\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOperating Temperature:\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\"\u003e−\u003c\/span\u003e\u003cspan class=\"mord\"\u003e45°\u003c\/span\u003e\u003cspan class=\"mord mathnormal\"\u003eC\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e to \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\"\u003e85°\u003c\/span\u003e\u003cspan class=\"mord mathnormal\"\u003eC\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 Approx. \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\"\u003e22\u003c\/span\u003e\u003cspan class=\"mord mathnormal\"\u003emm x \u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"base\"\u003e\u003cspan class=\"mord\"\u003e17\u003c\/span\u003e\u003cspan class=\"mord mathnormal\"\u003emm x \u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"base\"\u003e\u003cspan class=\"mord\"\u003e4\u003c\/span\u003e\u003cspan class=\"mord mathnormal\"\u003emm\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":42416552214679,"sku":"21PA000426","price":18.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/products\/mp1584en-3a-adjustable-buck-converter-top-view.webp?v=1754393219"},{"product_id":"time-delay-access-control-module","title":"Time Delay Access Control Module for Electric Locks - 1-20s Adjustable","description":"\u003cp\u003eUnlock enhanced security and seamless entry with our versatile \u003cb\u003eTime Delay Access Control Module\u003c\/b\u003e. Designed for a wide range of electric locks, this module provides precise control over your door locking mechanisms, making it ideal for access control and intercom systems.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eKey Features \u0026amp; Benefits:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eAdjustable Delay Function:\u003c\/b\u003e Set your desired unlock delay from 1 to 20 seconds using the built-in time knob. This flexibility allows for smooth operation, preventing premature re-locking and ensuring ample time for entry or exit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eBroad Compatibility:\u003c\/b\u003e Perfectly suited for various \"fail-safe\" electric locks including:\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eMagnetic Locks:\u003c\/b\u003e Provides the necessary delay for secure operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eElectric Bolt Locks:\u003c\/b\u003e Ensures controlled locking and unlocking.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMotor Locks:\u003c\/b\u003e Integrates seamlessly for reliable performance.\u003c\/li\u003e\n\u003cli\u003eAlso compatible with standard door switches and electric control locks.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eReliable Power Integration:\u003c\/b\u003e Operates efficiently within a \u003cb\u003eDC 9V-14V\u003c\/b\u003e voltage range, ensuring stable performance with your existing power supply.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCompact Design:\u003c\/b\u003e With dimensions of \u003cb\u003e67mm x 31mm x 20mm\u003c\/b\u003e, this time delay board is easily integrated into new or existing access control setups without taking up excessive space.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eEnhanced Security \u0026amp; Convenience:\u003c\/b\u003e Improve the user experience by allowing a controlled delay before a door re-locks, preventing accidental lockouts and providing necessary egress time in high-traffic areas.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eHow it Works (Fail-Safe Mode):\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThis module typically operates in \"Fail-Safe\" mode, which means:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003ePower ON = Door Closed (Locked):\u003c\/b\u003e When power is supplied, the lock remains engaged, securing the door.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePower OFF = Door Open (Unlocked):\u003c\/b\u003e In the event of a power interruption (or intentional power cut by the module after the delay), the lock disengages, allowing the door to open. This is a common safety feature for emergency exits.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eUpgrade your access control system with our reliable Time Delay Access Control Module for secure, controlled, and convenient entry management.\u003c\/p\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":42556204777623,"sku":"","price":25.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/products\/Time-Delay-Access-Control-Module-Front-View.jpg?v=1754381197"},{"product_id":"400-points-breadboard-85-x-55mm","title":"400 Tie-Point Solderless Breadboard for Arduino \u0026 DIY Projects","description":"\u003cp\u003e\u003cb\u003eOverview: Essential for Prototyping \u0026amp; Testing\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eAccelerate your electronic projects with our 400 Tie-Point Solderless Breadboard. Measuring a compact 8.5 x 5.5cm, this versatile breadboard is an indispensable tool for hobbyists, students, and engineers alike. Perfect for quickly assembling and testing circuits without the need for soldering, it's ideal for Arduino projects, small prototypes, and educational experiments.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eKey Features \u0026amp; Benefits:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003e400 Tie-Points for Flexible Circuitry:\u003c\/b\u003e\n\u003cul\u003e\n\u003cli\u003eProvides 400 connection points, including 100 dedicated to power lanes and 300 for the main double-strip, offering ample space for complex and simple circuits.\u003c\/li\u003e\n\u003cli\u003eAllows for rapid component placement and wire connections, making circuit iteration fast and efficient.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSolderless Design for Easy Prototyping:\u003c\/b\u003e\n\u003cul\u003e\n\u003cli\u003eNo soldering required! Simply plug in your components and wires, allowing for quick modifications and reuse of parts.\u003c\/li\u003e\n\u003cli\u003eIdeal for beginners learning electronics and experienced users who need to test ideas quickly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCompact \u0026amp; Portable Size:\u003c\/b\u003e\n\u003cul\u003e\n\u003cli\u003eDimensions of 8.5cm (Length) x 5.5cm (Width) x 0.85cm (Thickness) make it easy to integrate into larger projects or carry for on-the-go prototyping.\u003c\/li\u003e\n\u003cli\u003ePerfect for mini universal test circuits and experimental boards.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDurable \u0026amp; Reliable Construction:\u003c\/b\u003e\n\u003cul\u003e\n\u003cli\u003eFeatures a robust plastic housing with high-quality metal contact clips for secure connections.\u003c\/li\u003e\n\u003cli\u003eAccepts wires with diameters from 20-29 AWG, providing broad compatibility with standard jumper wires.\u003c\/li\u003e\n\u003cli\u003eRated for 300V \/ 3-5A, suitable for a wide range of low-power electronic applications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePerfect for Arduino \u0026amp; Microcontroller Projects:\u003c\/b\u003e\n\u003cul\u003e\n\u003cli\u003eSpecifically designed for Arduino Shield prototyping and testing, making it a go-to choice for microcontroller development.\u003c\/li\u003e\n\u003cli\u003eFacilitates quick assembly of sensors, modules, and components for your embedded systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eArduino \u0026amp; Raspberry Pi Projects\u003c\/li\u003e\n\u003cli\u003eElectronic Circuit Prototyping\u003c\/li\u003e\n\u003cli\u003eEducational STEM Kits\u003c\/li\u003e\n\u003cli\u003eRapid Testing \u0026amp; Debugging\u003c\/li\u003e\n\u003cli\u003eDIY Electronic Enthusiasts\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":42742709190807,"sku":"","price":15.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/products\/solderless-breadboard-400-tie-point-close-up.jpg?v=1753005834"},{"product_id":"mini-usb-2-channel-breadboad-power-supply","title":"MB-102 Breadboard Power Supply Module: 5V\/3.3V Mini USB (Arduino)","description":"\u003ch2\u003e\u003cb\u003eUnleash Your Breadboard Projects with Reliable Power!\u003c\/b\u003e\u003c\/h2\u003e\n\u003cp\u003eThe MB-102 Breadboard Power Supply Module is your essential tool for powering DIY electronics, Arduino projects, and prototyping. Designed for convenience and versatility, this compact module provides stable 5V and 3.3V power directly to your breadboard, simplifying your circuit design and reducing wiring clutter.\u003c\/p\u003e\n\u003ch3\u003e\u003cb\u003eKey Features:\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eDual Voltage Output:\u003c\/b\u003e Easily switch between 5V and 3.3V to suit the specific requirements of your components, from microcontrollers to sensors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWide Input Voltage Range:\u003c\/b\u003e Accepts DC 7-12V, making it compatible with common power adapters and battery packs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eConvenient Mini USB Interface:\u003c\/b\u003e Power your breadboard directly from a standard Mini USB cable, perfect for development environments or portable setups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eIntegrated Power Indicator:\u003c\/b\u003e A clear LED lets you know when your module is powered on and ready to go.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCurrent Protection:\u003c\/b\u003e Delivers up to 700mA output current, sufficient for most small to medium-sized breadboard circuits.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDirect Breadboard Integration:\u003c\/b\u003e Designed to plug directly into MB-102 breadboards, saving space and simplifying connections.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eIdeal for Arduino \u0026amp; DIY:\u003c\/b\u003e A must-have accessory for hobbyists, students, and engineers working with Arduino, ESP32, Raspberry Pi (GPIO), and other microcontroller-based projects.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eSimplify your prototyping and ensure consistent power for your electronic creations!\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eInput Voltage:\u003c\/b\u003e DC 7-12V\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOutput Voltage:\u003c\/b\u003e Switchable 3.3V and 5V\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMaximum Output Current:\u003c\/b\u003e 700mA\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInterface:\u003c\/b\u003e Mini USB\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCompatibility:\u003c\/b\u003e Designed for MB-102 Breadboards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003ePacking Included:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1 x MB-102 Mini USB Breadboard Power Supply Module\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":42850609070231,"sku":"","price":15.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/products\/mb102-mini-usb-power-module-front.jpg?v=1754771247"},{"product_id":"2000w-ac-220-v-2000-w-scr-voltage-regulator","title":"2000W AC Voltage Regulator \u0026 Motor Speed Controller | 50-220V Dimmer","description":"\u003ch2 data-path-to-node=\"2\"\u003ePrecision Power Control for Every Project\u003c\/h2\u003e\n\u003cp data-path-to-node=\"3\"\u003eWhether you are building a custom workstation, repairing an industrial tool, or fine-tuning home appliances, having stable power delivery is non-negotiable. The \u003cb data-path-to-node=\"3\" data-index-in-node=\"161\"\u003e2000W AC SCR Voltage Regulator\u003c\/b\u003e is designed to give you absolute control over alternating current devices, turning complex power management into a simple twist of a dial.\u003c\/p\u003e\n\u003cp data-path-to-node=\"3\"\u003e \u003c\/p\u003e\n\u003ch3 data-path-to-node=\"4\"\u003eHeavy-Duty Performance You Can Trust\u003c\/h3\u003e\n\u003cp data-path-to-node=\"5\"\u003eWe know that component reliability is critical for engineering and DIY applications. This speed controller is built around an original imported \u003cb data-path-to-node=\"5\" data-index-in-node=\"144\"\u003eSTMicroelectronics high-power bidirectional SCR\u003c\/b\u003e, capable of withstanding high voltages up to \u003cb data-path-to-node=\"5\" data-index-in-node=\"237\"\u003e1200V\u003c\/b\u003e.\u003c\/p\u003e\n\u003cp data-path-to-node=\"6\"\u003eSupported by high-voltage capacitors and precision multi-turn potentiometers, it safely handles a maximum current of \u003cb data-path-to-node=\"6\" data-index-in-node=\"117\"\u003e25A\u003c\/b\u003e. This robust architecture effectively solves the overcurrent problems often caused by the low resistance of cooling heating wires, protecting both the module and your valuable equipment.\u003c\/p\u003e\n\u003cp data-path-to-node=\"6\"\u003e \u003c\/p\u003e\n\u003ch3 data-path-to-node=\"7\"\u003ePlug-and-Play Simplicity\u003c\/h3\u003e\n\u003cp data-path-to-node=\"8\"\u003eForget about complicated wiring diagrams or the need to solder extra components. This voltage regulator features integrated \u003cb data-path-to-node=\"8\" data-index-in-node=\"124\"\u003escrew terminals\u003c\/b\u003e and a pre-installed variable resistor knob with a secured nut. Simply connect your AC input (110V-220V) to the \"IN\" terminals, and your appliance to the \"OUT\" terminals. Within minutes, you can dial in the exact output voltage between \u003cb data-path-to-node=\"8\" data-index-in-node=\"375\"\u003e50V and 220V\u003c\/b\u003e to achieve the perfect lighting mood, motor speed, or soldering iron temperature.\u003c\/p\u003e\n\u003cp data-path-to-node=\"8\"\u003e \u003c\/p\u003e\n\u003ch3 data-path-to-node=\"9\"\u003eBuilt for Versatility\u003c\/h3\u003e\n\u003cp data-path-to-node=\"10\"\u003eThis isn't just a dimmer switch; it is a multi-purpose control hub. Its compact footprint (\u003cb data-path-to-node=\"10\" data-index-in-node=\"91\"\u003e54 x 48 x 29mm\u003c\/b\u003e) allows it to be easily integrated into custom enclosures, making it a staple for any serious electronics workbench or professional repair kit.\u003c\/p\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":42866058854551,"sku":"21TS001325","price":25.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/products\/2000w-ac-voltage-regulator-front-view.jpg?v=1774935305"},{"product_id":"5-35v-dc-motor-speed-controller-module","title":"5-35V 5A Mini DC Motor Speed Controller | 90W PWM Regulator Module","description":"\u003ch2 class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003ePrecision Control for Your DC Motors\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eStruggling with jerky motor movements or inefficient power delivery in your DIY projects? The\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cstrong class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eMini PWM DC Motor Speed Controller\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"ng-star-inserted\"\u003e\u003cspan\u003e \u003c\/span\u003eis engineered to solve exactly that. Utilizing Pulse Width Modulation (PWM) technology at a stable 10kHz frequency, this module allows you to adjust motor speed smoothly from 1% all the way to 100%. Whether you are fine-tuning a robotic arm, slowing down a noisy ventilation fan, or dimming a custom LED strip, you get absolute precision without sacrificing motor torque.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eAdvanced Low-Voltage Drive Technology\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eDon't let its miniature size fool you. Powered by the latest low-voltage drive architecture, this tiny board supports a wide input range of\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cstrong class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eDC 5V to 35V\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"ng-star-inserted\"\u003e\u003cspan\u003e \u003c\/span\u003eand can sustain a continuous current of up to\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cstrong class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003e5A\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"ng-star-inserted\"\u003e. With a maximum control power of\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cstrong class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003e90W\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"ng-star-inserted\"\u003e, it punches far above its weight class, making it a versatile backbone for both 12V and 24V electronic applications. Furthermore, its ultra-low standby current of just\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cstrong class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003e0.015A\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"ng-star-inserted\"\u003e\u003cspan\u003e \u003c\/span\u003eensures your battery-powered setups remain efficient.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eSmart Self-Recovering Fuse Protection\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eAccidental short circuits and power surges happen. Traditional controllers require you to manually desolder and replace blown fuses—but not this one. This module is equipped with a smart\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cstrong class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eself-recovering fuse\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"ng-star-inserted\"\u003e. If the current exceeds safe limits, the connection is instantly severed to protect your equipment. Once the power is cut and the board cools down for a few seconds, the fuse\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cstrong class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eautomatically resets itself\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"ng-star-inserted\"\u003e. You will almost never need to replace a fuse again.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eUltra-Compact, Space-Saving Design\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eSpace is always at a premium in custom electronics and maker projects. Measuring just\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cstrong class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003e30mm x 24mm x 15mm\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"ng-star-inserted\"\u003e\u003cspan\u003e \u003c\/span\u003e(excluding the rotary knob), this speed controller can be easily tucked away into tight enclosures, custom 3D-printed cases, or crowded breadboard setups. The integrated rotary knob provides a satisfying, tactile feel for real-time speed adjustments.\u003c\/span\u003e\u003c\/p\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":42866100174999,"sku":"21PS001595","price":20.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/products\/dc-motor-speed-controller-module-front-view.jpg?v=1779858633"},{"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":"1660-hole-solderless-breadboard-with-aluminum-back-plate","title":"1660 Hole Solderless Breadboard SYB-1660 with Aluminum Back Plate","description":"\u003ch4 data-start=\"2116\" data-end=\"2140\"\u003e\u003cstrong data-start=\"2120\" data-end=\"2140\"\u003eProduct Overview\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp data-start=\"2141\" data-end=\"2446\"\u003eThe \u003cstrong data-start=\"2145\" data-end=\"2179\"\u003eSolderless Breadboard\u003c\/strong\u003e offers \u003cstrong data-start=\"2187\" data-end=\"2206\"\u003e1660 tie-points\u003c\/strong\u003e, ideal for electronics prototyping, circuit testing, STEM education, robotics projects, and DIY electronics.\u003cbr data-start=\"2315\" data-end=\"2318\"\u003eMounted on a durable \u003cstrong data-start=\"2339\" data-end=\"2362\"\u003ealuminum back plate\u003c\/strong\u003e, it provides a stable and reliable work surface for repeated use without soldering.\u003c\/p\u003e\n\u003cp data-start=\"2448\" data-end=\"2531\"\u003ePerfect for engineers, makers, students, and anyone building electronic prototypes.\u003c\/p\u003e\n\u003chr data-start=\"2533\" data-end=\"2536\"\u003e\n\u003ch4 data-start=\"2538\" data-end=\"2558\"\u003e\u003cstrong data-start=\"2542\" data-end=\"2558\"\u003eKey Features\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli data-start=\"2561\" data-end=\"2658\"\u003e\n\u003cstrong data-start=\"2561\" data-end=\"2599\"\u003e1660 Tie-Points for Large Projects\u003c\/strong\u003e\u003cbr data-start=\"2599\" data-end=\"2602\"\u003eSupports complex circuit layouts and multi-IC designs.\u003c\/li\u003e\n\u003cli data-start=\"2662\" data-end=\"2764\"\u003e\n\u003cstrong data-start=\"2662\" data-end=\"2692\"\u003eStrong Aluminum Back Plate\u003c\/strong\u003e\u003cbr data-start=\"2692\" data-end=\"2695\"\u003eIncreases structural rigidity and prevents movement during testing.\u003c\/li\u003e\n\u003cli data-start=\"2768\" data-end=\"2876\"\u003e\n\u003cstrong data-start=\"2768\" data-end=\"2792\"\u003eDurable Spring Clips\u003c\/strong\u003e\u003cbr data-start=\"2792\" data-end=\"2795\"\u003eUses nickel-plated phosphor bronze clips for firm and long-lasting connections.\u003c\/li\u003e\n\u003cli data-start=\"2880\" data-end=\"2981\"\u003e\n\u003cstrong data-start=\"2880\" data-end=\"2909\"\u003eSolderless, Fast Assembly\u003c\/strong\u003e\u003cbr data-start=\"2909\" data-end=\"2912\"\u003eAccepts 20–29 AWG solid wires for easy prototyping and reusability.\u003c\/li\u003e\n\u003cli data-start=\"2985\" data-end=\"3106\"\u003e\n\u003cstrong data-start=\"2985\" data-end=\"3005\"\u003eWide Application\u003c\/strong\u003e\u003cbr data-start=\"3005\" data-end=\"3008\"\u003eIdeal for circuit testing, prototyping, STEM labs, robotics, DIY kits, and electronic education.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"3108\" data-end=\"3111\"\u003e\n\u003ch4 data-start=\"3113\" data-end=\"3135\"\u003e\u003cstrong data-start=\"3117\" data-end=\"3135\"\u003eSpecifications\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli data-start=\"3138\" data-end=\"3166\"\u003e\n\u003cstrong data-start=\"3138\" data-end=\"3159\"\u003eTotal Tie-Points:\u003c\/strong\u003e 1660\u003c\/li\u003e\n\u003cli data-start=\"3169\" data-end=\"3189\"\u003e\n\u003cstrong data-start=\"3169\" data-end=\"3187\"\u003eConfiguration:\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli data-start=\"3194\" data-end=\"3227\"\u003e2 terminal strips (1260 points)\u003c\/li\u003e\n\u003cli data-start=\"3232\" data-end=\"3268\"\u003e4 distribution strips (400 points)\u003c\/li\u003e\n\u003cli data-start=\"3273\" data-end=\"3290\"\u003e3 binding posts\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3293\" data-end=\"3338\"\u003e\n\u003cstrong data-start=\"3293\" data-end=\"3308\"\u003eBase Plate:\u003c\/strong\u003e Aluminum back plate (black)\u003c\/li\u003e\n\u003cli data-start=\"3341\" data-end=\"3404\"\u003e\n\u003cstrong data-start=\"3341\" data-end=\"3359\"\u003eClip Material:\u003c\/strong\u003e Nickel-plated phosphor bronze spring clips\u003c\/li\u003e\n\u003cli data-start=\"3407\" data-end=\"3433\"\u003e\n\u003cstrong data-start=\"3407\" data-end=\"3421\"\u003eWire Size:\u003c\/strong\u003e 20–29 AWG\u003c\/li\u003e\n\u003cli data-start=\"3436\" data-end=\"3505\"\u003e\n\u003cstrong data-start=\"3436\" data-end=\"3453\"\u003eApplications:\u003c\/strong\u003e Prototyping, testing, education, DIY kits, robotics\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":43063994974359,"sku":"21PS002118","price":29.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/products\/1660-hole-breadboard-aluminum-plate-connectors.jpg?v=1764144127"},{"product_id":"solar-panel-3v-100ma-with-dupont-plug","title":"3V 100mA Mini Solar Panel with Dupont Connector – DIY \u0026 STEM Projects","description":"\u003ch2 data-path-to-node=\"8\"\u003ePower Your Creativity with Renewable Energy\u003c\/h2\u003e\n\u003cp data-path-to-node=\"9\"\u003eAre you a hobbyist, student, or engineer looking for a reliable power source for your small-scale electronics? The \u003cb data-path-to-node=\"9\" data-index-in-node=\"115\"\u003e3V 100mA Solar Panel\u003c\/b\u003e is engineered to bridge the gap between complex solar technology and simple DIY application.\u003c\/p\u003e\n\u003cp data-path-to-node=\"10\"\u003eUnlike raw solar cells that are fragile and difficult to wire, this unit features a \u003cb data-path-to-node=\"10\" data-index-in-node=\"84\"\u003edurable yellow plastic casing\u003c\/b\u003e that protects the polycrystalline cells from impact during handling. It is specifically designed to withstand the rigors of classroom experiments and outdoor testing.\u003c\/p\u003e\n\u003cp data-path-to-node=\"10\"\u003e \u003c\/p\u003e\n\u003ch3 data-path-to-node=\"11\"\u003eWhy Choose This Solar Module?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-path-to-node=\"12,0,0\"\u003e\n\u003cb data-path-to-node=\"12,0,0\" data-index-in-node=\"0\"\u003eZero Soldering Required:\u003c\/b\u003e The integrated 2-pin Dupont connector (female\/header style) allows you to plug this panel directly into standard breadboards, Arduino headers, or development boards.\u003c\/li\u003e\n\u003cli data-path-to-node=\"12,1,0\"\u003e\n\u003cb data-path-to-node=\"12,1,0\" data-index-in-node=\"0\"\u003eOptimized for Education (STEM):\u003c\/b\u003e Ideal for teaching the principles of photovoltaics, renewable energy, and circuit building without the frustration of loose connections.\u003c\/li\u003e\n\u003cli data-path-to-node=\"12,2,0\"\u003e\n\u003cb data-path-to-node=\"12,2,0\" data-index-in-node=\"0\"\u003eCompact High Efficiency:\u003c\/b\u003e Despite its small footprint, it efficiently converts direct sunlight into 3 Volts of power, enough to drive small DC motors, light up LEDs, or trickle charge capacitors and batteries.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3 data-path-to-node=\"13\"\u003eCritical Usage Note for Best Performance\u003c\/h3\u003e\n\u003cp data-path-to-node=\"14\"\u003e\u003cb data-path-to-node=\"14\" data-index-in-node=\"0\"\u003eSunlight Matters:\u003c\/b\u003e Solar technology relies on UV intensity. This panel is designed for \u003cb data-path-to-node=\"14\" data-index-in-node=\"86\"\u003eoutdoor use under direct sunlight\u003c\/b\u003e. It will produce minimal to no power under indoor household lights, fluorescent lamps, or on heavily cloudy days. \u003cb data-path-to-node=\"14\" data-index-in-node=\"234\"\u003eRemove Protective Film:\u003c\/b\u003e For maximum efficiency, please peel off the transparent plastic film covering the panel surface before your first use.\u003c\/p\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":43097540034711,"sku":"21BY000232","price":20.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/files\/3v-100ma-solar-panel-dupont-connector-plug.jpg?v=1771224675"},{"product_id":"5v-2a-solar-panel-usb-charge-voltage-controller-module","title":"5V 2A Solar Panel USB Voltage Regulator Module | DC 5V-20V Step-Down","description":"\u003ch2 data-path-to-node=\"8\"\u003eReliable Power for DIY Solar Projects\u003c\/h2\u003e\n\u003cp data-path-to-node=\"9\"\u003eHarnessing solar energy is notoriously unpredictable. Direct sun exposure can cause voltage spikes that fry sensitive electronics. Our \u003cb data-path-to-node=\"9\" data-index-in-node=\"135\"\u003eDC-DC Buck Converter Module\u003c\/b\u003e acts as an intelligent gatekeeper. By utilizing high-frequency switching technology, it maintains a steady 5V output even as the sun ducks behind clouds, protecting your smartphone, power bank, or DIY kits from voltage instability.\u003c\/p\u003e\n\u003cp data-path-to-node=\"9\"\u003e \u003c\/p\u003e\n\u003ch3 data-path-to-node=\"10\"\u003eIndustrial-Grade Durability\u003c\/h3\u003e\n\u003cp data-path-to-node=\"11\"\u003eDesigned for the elements, this module operates within a wide temperature range of \u003cb data-path-to-node=\"11\" data-index-in-node=\"83\"\u003e-40°C to +85°C\u003c\/b\u003e. The integrated \u003cb data-path-to-node=\"11\" data-index-in-node=\"114\"\u003eXL1410E1 chip\u003c\/b\u003e ensures high-current output with minimal heat generation. The package comes complete with a precision-fit protective shell and mounting screws, allowing for a professional, \"clean-build\" look in your project housing.\u003c\/p\u003e\n\u003cp data-path-to-node=\"11\"\u003e \u003c\/p\u003e\n\u003ch3 data-path-to-node=\"12\"\u003eEngineered for Efficiency\u003c\/h3\u003e\n\u003cp data-path-to-node=\"13\"\u003eEfficiency is king in solar applications. With a \u003cb data-path-to-node=\"13\" data-index-in-node=\"49\"\u003e95% conversion rate\u003c\/b\u003e, this regulator ensures that almost every watt harvested by your panels reaches your battery. The onboard LED indicator provides instant visual confirmation that the system is active, making it perfect for field deployments where troubleshooting tools are limited.\u003c\/p\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":43139074326679,"sku":"","price":19.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/files\/solar-panel-usb-regulator-module-kit.jpg?v=1772094849"},{"product_id":"35pcs-7-value-x-5pcs-pcb-board-kit","title":"35pcs SMD to DIP Adapter PCB Board Kit | SOP8-SOP28 Breakout Boards","description":"\u003ch2 data-path-to-node=\"7\"\u003eEffortless Prototyping for Modern Electronics\u003c\/h2\u003e\n\u003cp data-path-to-node=\"8\"\u003eIn modern electronics design, many innovative integrated circuits (ICs) are only available in SMD (Surface Mount Device) packages. For developers using standard breadboards or stripboards, this poses a significant challenge. Our \u003cb data-path-to-node=\"8\" data-index-in-node=\"229\"\u003eSMD to DIP Adapter PCB Kit\u003c\/b\u003e solves this problem by providing a stable, high-conductivity interface that adapts various SOP, MSOP, and SSOP footprints to a standard 2.54mm pitch.\u003c\/p\u003e\n\u003cp data-path-to-node=\"8\"\u003e \u003c\/p\u003e\n\u003ch3 data-path-to-node=\"9\"\u003eA Comprehensive 7-Value Solution\u003c\/h3\u003e\n\u003cp data-path-to-node=\"10\"\u003eWhy buy individual adapters when you can have a complete library? This kit includes \u003cb data-path-to-node=\"10\" data-index-in-node=\"84\"\u003e5 pieces each of 7 different sizes\u003c\/b\u003e, ranging from the compact SOP8 to the larger SOP28. This variety covers the vast majority of logic gates, microcontrollers, and interface ICs used in contemporary DIY electronics. Each board is precision-manufactured with a standard green solder mask to prevent bridging and ensure clean, professional solder joints.\u003c\/p\u003e\n\u003cp data-path-to-node=\"10\"\u003e \u003c\/p\u003e\n\u003ch3 data-path-to-node=\"11\"\u003eIndustrial-Grade Build Quality\u003c\/h3\u003e\n\u003cp data-path-to-node=\"12\"\u003eConstructed from durable \u003cb data-path-to-node=\"12\" data-index-in-node=\"25\"\u003eFR-4 glass epoxy\u003c\/b\u003e, these boards are designed to withstand the heat of repeated soldering. The pre-tinned pads offer excellent solderability, ensuring low-resistance connections for high-speed signals or power delivery. Each board features clear pin numbering on both sides, significantly reducing wiring errors and speeding up your assembly time.\u003c\/p\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":43143933001879,"sku":"21PS002084","price":29.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/files\/smd-to-dip-adapter-pcb-kit-main.jpg?v=1775374895"},{"product_id":"5v-2a-type-c-wireless-charger-module-transmitter","title":"15W Qi Wireless Charger Module with Type-C Port","description":"\u003cp\u003eUpgrade your projects with our powerful and efficient \u003cb\u003e15W Qi Wireless Charger Module\u003c\/b\u003e. Designed for seamless integration, this module provides a fast and reliable wireless charging solution for both Apple and Android smartphones. Its compact design and Type-C input make it a versatile choice for DIY electronics, custom furniture, or upgrading existing devices.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eKey Features:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eHigh-Power 15W Fast Charging:\u003c\/b\u003e Intelligently identifies your device to deliver the optimal charging speed, significantly reducing waiting time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eUniversal Compatibility:\u003c\/b\u003e Fully compatible with the Qi wireless charging standard, supporting a wide range of Apple and Android devices.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eVersatile Type-C Input:\u003c\/b\u003e Supports multiple power inputs (5V, 9V, 12V), allowing you to use it with various power adapters, including QC3.0 for maximum performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLow Heat \u0026amp; High Efficiency:\u003c\/b\u003e Engineered for minimal heat generation and maximum charging efficiency, ensuring safe and reliable operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eEasy to Install:\u003c\/b\u003e A simple and straightforward design makes it perfect for hobbyists and professionals alike.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eInstallation \u0026amp; Best Performance Guide:\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eTo ensure the best performance and charging speed, please follow these recommendations:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cb\u003ePower Source:\u003c\/b\u003e Use a high-quality charging adapter and cable that can deliver at least 2A. For the fastest charging speeds, a QC3.0 fast-charging adapter is highly recommended.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCase \u0026amp;-Cover Thickness:\u003c\/b\u003e The transmitter coil can charge through non-metal cases or covers up to 3mm thick. Thicker cases may impact efficiency.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eProper Alignment:\u003c\/b\u003e For optimal charging, ensure the center of your smartphone is aligned with the center of the transmitter coil. Misalignment may slow down or interrupt charging.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cb\u003eWhat's in the Box:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1 x 15W Wireless Charger Transmitter Module with Coil\u003c\/li\u003e\n\u003cli\u003e1 x Magnetic Shielding Sheet\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":43278778204311,"sku":"","price":30.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/files\/15w-qi-wireless-charger-module-type-c.jpg?v=1756287923"},{"product_id":"5v-7-5w-wireless-charger-receive-module","title":"7.5W Qi Wireless Charger Receiver Module - 5V for DIY Projects","description":"\u003cp\u003e\u003cb\u003eEffortlessly Integrate Wireless Charging into Your Creations!\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eUnleash your creativity and cut the cords with our 7.5W Qi Wireless Charger Receiver Module. This compact and efficient module is the perfect solution for hobbyists, makers, and DIY enthusiasts looking to add modern, convenient wireless charging capabilities to their electronic projects.\u003c\/p\u003e\n\u003cp\u003eBased on the universal Qi standard, this receiver is compatible with the vast majority of wireless charging pads on the market. Simply connect the positive and negative output terminals to your 5V device, place it on a Qi transmitter, and watch it power up—no plugs required. Its high 75% charging efficiency ensures minimal power loss.\u003c\/p\u003e\n\u003cp\u003eAs shown in the images, this module is ideal for powering custom projects like LED light strips, building custom charging cases for devices, or creating unique desktop gadgets.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eKey Features:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eUniversal Compatibility:\u003c\/b\u003e Complies with the Qi wireless charging standard.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eEfficient Power:\u003c\/b\u003e Delivers a stable 5V \/ 7.5W output with up to 75% charging efficiency.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCompact \u0026amp; Lightweight:\u003c\/b\u003e The small footprint of the coil and circuit board makes it easy to integrate into projects of any size.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDIY Ready:\u003c\/b\u003e Simple two-wire output (positive and negative) for easy connection to your project's circuit.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eOutput Power:\u003c\/b\u003e 5V \/ 7.5W\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCharging Efficiency:\u003c\/b\u003e 75%\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eStandard:\u003c\/b\u003e Qi Wireless Charging Standard\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePCB Dimensions:\u003c\/b\u003e 17mm x 25mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCoil Dimensions:\u003c\/b\u003e 29mm x 40mm\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 7.5W Qi Wireless Receiver Module (PCBA + Coil)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":43278858059927,"sku":"","price":38.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/files\/7-5w-qi-wireless-charger-receiver-module.jpg?v=1756204665"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/collections\/electronic_module-2160158.jpg?v=1753349321","url":"https:\/\/scccltd.com\/collections\/electronic-modules.oembed?page=13","provider":"Sun Cheong Computer Company Limited","version":"1.0","type":"link"}