Ken Shirriff has written an excellent in-depth look at the PocketBeagle: Hands-on with the PocketBeagle: A $25 Linux Computer The PocketBeagle is a tiny but powerful inexpensive key-fob-sized open source Linux computer. It has 44 digital I/O pins, 8 analog inputs, and supports multiple serial I/O protocols, making it very useful as a controller. In […]