[Allan Schwartz] decided to document his experience using Fritzing to design, fabricate, and test a custom Arduino shield PCB, and his step-by-step documentation makes the workflow very clear.

Microcontroller demo boards such as the Arduino UNO are ubiquitous on Hackaday as ... can’t really be called a board since there is no PCB. Instead of the traditional fiberglass, [Jiří Praus ...

It also hosts an IR receiver, piezo buzzer, RGB/blue/red LEDs, 2-channel digital port, single-channel analog port, IIC interface, TTL serial port, and a pair of push buttons. The Easy Module Shield is ...