The Arduino Nano is a small, complete and breadboard-friendly board based on the ATmega328 (Arduino Nano 3.x) orATmega168 (Arduino Nano 2.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.
Features:-
Support USB download and power
Support for external 5V to 12V DC power supply
It supports power supply by 9V battery
Support ISP download
Automatic reset during program download.
Specification:-
Model name : NANO R3
Chip name : ATmega328
Operating voltage : 5V
Recommended operating voltage range : 5V to 12V
Digital input/output pins : 14 (of which 6 provide PWM output)
