Detect human motion effortlessly with the HC-SR501 PIR Motion Detection Sensor Module. This passive infrared (PIR) sensor is designed to sense movement by detecting changes in infrared radiation emitted by people and animals. Equipped with an adjustable sensitivity control, adjustable delay timer, and a rear trigger mode jumper (Repeatable H / Non-Repeatable L), it offers flexible configuration for a wide range of automation and security applications. Typical HC-SR501 modules operate from 4.5–20 VDC, detect motion from about 3–7 m, and provide a 3.3 V digital output.
Ideal for Arduino, ESP32, ESP8266, STM32, Raspberry Pi, and other microcontroller platforms, this module is perfect for smart lighting, intrusion detection, automatic doors, home automation, robotics, and IoT projects.
Key Features
- ✔ Passive Infrared (PIR) Motion Detection Technology
- ✔ Operating Voltage: 4.5V–20V DC
- ✔ Adjustable Detection Range: 3–7 meters
- ✔ Adjustable Delay Time: 5–200 seconds
- ✔ Rear Jumper for Repeatable (H) & Non-Repeatable (L) Trigger Modes
- ✔ Compatible with Arduino, ESP32, ESP8266, STM32 & Raspberry Pi
- ✔ Ideal for Smart Home, Security, Automation & Robotics Projects
Whether you're building a smart lighting system, security alarm, occupancy detector, or IoT automation project, the HC-SR501 PIR Motion Sensor delivers reliable and low-power motion detection for embedded applications.
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