Discover how to make a DIY hand-powered mobile phone charger using simple materials such as two small DC motors and a piece ...

Learn how to create a functional DIY mini vacuum cleaner using everyday materials like a plastic bottle and a small DC motor.

The Raspberry Pi Pico is a low-cost, high-performance microcontroller board, It has flexible digital interfaces and it is very small but powerful. The board offers users the chance to develop projects ...

This circuit takes advantage of the voltage drop across bridge rectifier diodes to produce a 5-position variable voltage supply to a DC fan or other small DC motor. It is not as efficient as a ...