The HC-SR501 PIR Motion Sensor Module is a highly reliable passive infrared (PIR) motion detector designed to sense human or animal movement. It detects infrared radiation emitted by living beings and triggers an output signal when motion is detected.
This sensor is widely used in security systems, automatic lighting control, smart home automation, and industrial motion detection. It features adjustable sensitivity and delay time, allowing users to customize its response.
The HC-SR501 operates with a wide voltage range (4.5V – 20V) and is compatible with Arduino, Raspberry Pi, ESP8266, ESP32, and other microcontrollers.
✅ High Sensitivity to human and animal motion
✅ Detection range up to 7 meters (adjustable)
✅ Wide operating voltage: 4.5V – 20V DC
✅ Low power consumption & automatic reset
✅ Adjustable delay time (5s – 300s) & sensitivity
✅ Digital Output: HIGH (motion detected) / LOW (no motion)
✅ Compatible with Arduino, Raspberry Pi, and IoT devices
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