The Arduino is a circuit board that you'll program to perform certain tasks, and what it does will entirely be up to you. You can make it do all sorts of things, ranging from creating a smart ...

Some of the first steps toward working with Arduino is understanding how to write code for it. The good news is that it's made with beginners in mind.

[Trent M. Wyatt]’s CPUVolt library provides a fast way to measure voltage using no external components, and no I/O pin. It only applies to certain microcontrollers, but he provides example Ar… ...