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 know that measuring the speed of light with an Arduino is possible. It’s just that the implementation is hard. [Udo] hit upon the idea of pulsing a laser pointer and measuring the time of the ...

Makers and hobbyists searching for inspiration for their next project, may be interested in this awesome build which uses an old nuclear power plant indicator, Nixie tubes and an Arduino ...