- The Nano is using the chips ATmega328P and CH340, not FT232 as official Arduino, so pls. use the driver from the above link.
- It is the smallest, complete, and breadboard-friendly board. It has everything that Diecimila/Duemilanove has (electrically) with more analog input pins and onboard 5V AREF jumper.
- Nano's got the breadboard-ability of the Boarduino and the Mini USB with a smaller footprint than either, so users have more breadboard space. It's got a pin layout that works well with the Mini or the Basic Stamp (TX, RX, ATN, GND on one top, power and ground on the other).
- The Nano can be powered via the Mini-B USB connection, 7-12V unregulated external power supply (pin 30), or 5V regulated external power supply (pin 27). The power source is automatically selected for the highest voltage source.