The passive infrared (PIR) sensor market is experiencing significant growth as demand for efficient motion detection and ...

PIR LED Security Light Circuit Schematic Notes The PIR sensor requires an initial stabilization time of about 10 to 60 seconds in order to function properly. During this time, the sensor gets familiar ...

Passive infrared (PIR) sensors detect infrared energy radiating from objects within their field of vision.

This circuit is from the GLOLAB web page. The document referenced here includes an excellent design as well as an excellent tutorial on PIR devices. You've probably seen these ...