The brains of this festive little tree is an ATmega328P, which you probably recognize ... wherein [Tom] walks through designing the PCB using Inkscape and Fritzing. Want to whip up a little ...

The watch rocks a simplistic, bare bones design with the PCB acting as the body of the ... The heart of the operation is a ATmega328P, as seen in the popular Arduino Uno, and it’s paired with ...