The idea was to create a ATtiny85 based development board based on a USB bootloader and optimised for the ubiquitous 170 point mini-breadboards, explains its creator.

“Possibly the smallest ATtiny85 based ‘duino derivative”. Indeed! When Olimex announced the Olimexino 85s as the smallest Arduino ever, [Tim] took that as a challenge. His very small Arduino based USB ...

If you enjoy tinkering and building Arduino projects and gizmos, you might be interested in the new Adafruit Gemma device which has been created by Adafruit and includes a tiny wearable platform board ...