Arduino Nano V3 CH340 is a small, complete, and breadboard-friendly board based on the ATmega328 (Arduino Nano 3. x). It has more or less the same functionality as 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.

• The Arduino Nano is a small, complete, and breadboard-friendly board based on the ATmega328 (Arduino Nano 3. x).
• It has more or less the same functionality as 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.
• Arduino Nano ch 340 can be powered via a mini-USB connector, 6-20V unregulated external power supply (pin 30), or 5V regulated external power supply (pin 27). The power source is automatically selected as the highest voltage source.