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

How to make mini bike from coca cola can with dc motor - mini diy science project #diy #miniproject #science Greenland's only ...

A friend asked me if I could develop a low-cost power driver for toy/hobby DC motors so he could use it with his microcontroller-based small electronics toy projects. Challenge accepted, the concept ...