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 ...

Parking sensors have become a must-have these days given the crowded cities we live in, but instead of paying hundreds of dollars to get them installed in your car, why not build your own at home?

Our project focuses on improving the control system for an electric-vehicle motor, previously used in a racing competition by the UDA E-Team (short for Universidad del Azuay, Ecuador). This project ...