Arduino Uno
The Arduino Uno from the Maker Shed is a great tool for physical computing and the brains behind many Maker Faire projects — It’s a tool for making computers that can sense and control more of the physical world than your desktop computer. It’s an open source physical computing platform based on a simple microcontroller board and a development environment for writing software for the board. The Uno is the latest in a series of USB Arduino boards. Comes fully assembled, just add a USB cable and join the revolution!