I recently had to build an infrared close proximity sensor that could tell if something was dropped in a parcel delivery drop box. After some searching, I ended up using a microcontroller ... Here is ...

Maybe he will add a temperature sensor someday so it doesn ... here are some other ways and other tools for using an IR remote with your Arduino and cloning an infrared remote.

Typically human presence sensors rely on movement, but the Omron device, the D6T is designed to detect occupation by sensing body heat ... for efficient IR radiation detection with a high-performance ...