[ladyada] has a freshly-published and amazingly thorough tutorial on passive infrared (PIR) motion sensors. Most often seen in security floodlights and automatic doors, in creative hands these sens… ...

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

Passive InfraRed sensors (PIRs) are electronic devices which are used in some security alarm systems to detect motion of an infrared emitting source, usually a human body.

A quick introduction According to Seeed studio, Grove-mini PIR motion sensor is a simple to use passive infrared motion sensor with Grove compatible interface, allows you to sense motion, usually ...

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

This project uses PIR (passive infrared) sensor to detect the change in radiation, this can be use on lighting control, temperature control, and motion detection since all objects with temperature ...

The video demonstrates how to wire up a Passive Infrared Sensor (PIR) using 4-core security cables. All Gallagher inputs are balanced 4-state inputs and must have two 4k7 resistors wired at the device ...