One day, I found a PIR motion sensor, a spare Zero 2W, and some leftover pieces from a Pi Jukebox project in the same drawer.

The PIR motion sensor is a key component in this project. It detects infrared radiation from moving objects, such as humans or animals, and sends a signal to the Raspberry Pi.

A Raspberry Pi-powered motion sensor camera could be the answer. You’ll need a parallax passive infrared (PIR) sensor and some basic coding chops but the finished gadget is worth the time ...

Right from the first generation of the Raspberry Pi, the computer has been used to run electronic projects that don't require too many resources while occupying less space.

It will be powered by a Raspberry Pi computer with a Passive Infrared Sensor (PIR) motion sensor attached to it, so that the display turns on, when motion is detected in the room, but turns off ...