[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 ...

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 and a piece ...

We’ve featured loads of IR Arduino projects and they are all exciting and unique. The projects spring from a specific need or problem where a custom infrared remote control is the solution. [Rick’s] ...

Sony’s IMX775 5-MP RGB-IR image sensor with a 2.1-µm pixel size delivers high sensitivity and a high dynamic range.

If you’ve been watching Nintendo Switch 2 news like a hawk for the past few weeks, you may have spotted leaks about the new and improved Joy-Con controllers, and wondering just what an IR sensor is.