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 is an inexpensive, small electronics platform for makers. Here's how to get started with it on macOS. When the small electronics platform Arduino exploded onto the electronics scene in 2005, ...

I made this project because I wanted a way to automatically control the speed of a DC fan according to the temperature read by a LM35 sensor. I had a few problems with the PWM part mainly because the ...