Some readers may recall building a line-following robot during their school days. Involving some IR LEDs, perhaps a bit of LEGO, and plenty of trial-and-error, it was fun on a tiny scale. Now imagine ...

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 ...

Arduino has an enormous fanbase around the world and is frequently used for classes, hobbies, computer tinkering, and projects from hopeful inventors. Sure, it may not be quite as user-friendly as ...