The Arduino Nano is a small version of the Arduino UNO with a breadboard-friendly form factor. The board was originally designed by Gravitech.
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 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.
|Operating Voltage:||5 V|
|Input Voltage:||7 - 12 V|
|Digital I/O Pins:||22 (of which 6 provide PWM output)|
|Analog Input Pins:||8|
|DC Current per I/O Pin:||40 mA|
|Flash Memory:||32 KB (of which 2 KB used by bootloader)|
|Clock Speed:||16 MHz|
|Power Consumption:||19 mA|
|PCB Size:||18 mm x 45 mm|