This week’s selection is the 3D Printed Electromechanical 7-Segment Display by Instructables contributor tin-foil-hat. If you’re old enough you might recall the pre-LCD digital displays found in clock ...

There’s a long history of devices originally used for communication being made into computers, with relay switching circuits, ...

Back in 2017, Hackaday featured an audio reactive LED strip project from [Scott Lawson], that has over the years become an ...

This project involves using an Arduino to measure distances using an ultrasonic sensor and controlling a buzzer and LED based on the measured distance. The provided Arduino code performs the following ...