Stepper motors are a subject that keeps recurring. This little circuit changes a clock signal (from a square wave generator) into signals with a 90-degree phase difference, which are required to drive ...

Illustrated in this project is the use of stepper motors in order to generate electricity that may be used to power LEDs, charge some batteries or even drive a motor. Illustrated in this project is ...

Large mechanical seven-segment displays have a certain presence that you just don’t get in electronic screens. Part of this comes from the rather satisfying click-click-clack sound they make at every ...