Arduino Nano is a compact board similar to the UNO

The Arduino Nano is a small, complete, and breadboard-friendly board based on the ATmega328P (Arduino Nano 3.x). It has more or less the same functionality of the Arduino Duemilanove, but in a different package. It lacks only a DC power jack, and works with a Mini-B USB cable instead of a standard one.

• Microcontroller module with USB connection
• 30 pin module, breadboard mountable
• Specialized library functions for robotics
• It is intended for roboticists, artists, designers and hobbyists
• Based on ATmega328