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 ...

Infrared line tracker modules hardly need an in-depth explanation as they’re very familiar to most electronics and robotics hobbyists. In this post I’ll discuss a popular and cheap infrared line ...

The D6T non-contact MEMS thermal sensor from Omron can reliably detect the presence of humans in an area, even if they aren’t moving (see the figure). This type of thermal sensor is an alternative to ...