[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 Arduino ...

Morse code used to be widely used around the globe. Before voice transmissions were possible over radio, Morse code was all the rage. Nowadays, it’s been replaced with more sophisticated technologies ...

Infineon's MOTIX full-bridge family of 10- and 20-A drivers are suited for automotive applications. Devices can be paralled to double their current drive capability. A set of Arduino Uno evaluation ...