In this project, I'll make a small circuit capable of controlling a servo, it is a servo tester made out of a 555 timer IC.

For certain high-security devices, such as card readers, ATMs, and hardware security modules, normal physical security isn’t ...

Robots don’t have to be large and imposing to be impressive. As this tiny quadruped from [Dorian Todd] demonstrates, some simple electronics and a few servos can create something altogether ...