• HC-SR501 PIR Motion Sensor Module for Arduino & Raspberry Pi projects. Wide-angle view showing the Fresnel lens.
  • Top view of HC-SR501 PIR sensor with the honeycomb Fresnel lens for effective human body detection.
  • Back view of the HC-SR501 module PCB. Shows the time delay and sensitivity adjustment potentiometers.
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HC-SR501 PIR Infrared Motion Sensor Module for Arduino & Raspberry Pi

HC-SR501 PIR Infrared Motion Sensor Module for Arduino & Raspberry Pi

🔥 2 sold•✓ In stock
HK$29.00
HK$29.00
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Delivery Options

  • Local delivery within Hong Kong and in-store pickup.​
  • Free shipping for orders of HK$400 or above; HK$35 shipping fee for orders below HK$400.​
  • Shipped by SF Express, usually dispatched the same day for orders confirmed before 6:00 PM (Mon–Sat).​
  • Estimated delivery time: 1–3 business days after dispatch (Hong Kong).​
  • In-store pickup details (location and time) will be confirmed by email or phone message.​
  • Delivery times are estimates and may be affected by weather or unforeseen circumstances.​

🌟 Product Highlights & Key Benefits

Introducing the highly sensitive HC-SR501 PIR Motion Sensor Module, the ideal component for your Arduino, Raspberry Pi, and microcontroller projects.

Built with advanced infrared technology and the LHI778 probe design, this module delivers high reliability, superb sensitivity, and an ultra-low voltage operation mode. It's perfect for automatically controlling lights, building security alerts, or creating smart, battery-operated devices.

 

💡 Key Features

  • Wide Detection Range: Offers a 110-degree sensing area and detects human movement up to 7 meters away.
  • Enhanced Sensitivity: Equipped with a specialized Fresnel Lens that efficiently focuses infrared radiation onto the sensor for improved accuracy.
  • Energy Efficient: Features an ultra-low standby current (less than 50µA), making it exceptionally well-suited for battery-powered and portable self-controlled products.
  • Flexible Trigger Modes: Easily switch between non-repeatable trigger (L) and repeatable trigger (H) modes using the onboard jumper cap.
  • Customizable Settings: Includes adjustable potentiometers to fine-tune the sensor's sensitivity and the time delay (from 2.5 seconds up to 10 seconds).
  • Broad Compatibility: A versatile electronic component ready for seamless integration with popular platforms like Arduino, Raspberry Pi, ESP8266, and more.

 

🛠️ Technical Specification

Attribute Detail Notes
Model HC-SR501
Operating Voltage 5V DC Standard microcontroller voltage
Standby Current < 50µA Ultra-low power consumption
Sensing Angle 110 degrees Wide-angle coverage
Trigger Distance Up to 7 meters Adjustable via potentiometer
Time Delay 2.5 seconds (Standard) - 10 seconds Adjustable via potentiometer
Blocking Period 200 milliseconds Ensures stability between detections
Trigger Modes L (Single) / H (Repeat) Selected via Jumper Cap
Operating Temperature -15°C to +70°C Wide operational range
Dimensions 33 x 25 x 30 mm Compact size for projects

 

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