[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 sensors ...

In this tutorial we will use a Passive Infra-Red (PIR) sensor as an input to trigger a LED. A PIR sensor works by detecting heat as an object passes by it. Plug the micro: bit into the GPIO shield.

Rust library to interact mainly with PIR motion sensors on Raspberry Pi platform. This lib was tested mainly on HC-SR501 motion sensor on Raspberry Pi 400 and Raspberry Pi 4B and it's widely used at ...