"The New Number Six - Embedded Microcontroller for Starving Artists"
This project was developed by the Computing Culture Group at the MIT Media Lab.
It's now called #6!
It's a 2"x2" (5cm x 5cm) one-side printed circuit board that supports the very robust Atmega32 microcontroller.
Because it's one-sided, you can make them at home with Press and Peel Blue a clothes iron, and Ferric Chloride from Radio Shack.
It can be configured minimally with just a tiny handful of components yet connect to so many different things.
The MiniSix by Adam Whiton is the smaller (26mm x 26mm) surface mount version of the Number Six microcontroller. Atmel AVR ATmega32 The MiniSix board is designed for a vertical stacking strategy using a 40 pin Hirose connector.
The MiniSix platform is availible as open source hardware and is registered with the Open Source Hardware and Design Alliance MiniSix at OHANDA.