The classic Arduino Nano is the smallest board to build your projects. The Arduino Nano is tiny, yet complete breadboard-friendly board based on the ATmega328 (Arduino Nano 3.x). The functionality is almost the same as of the Arduino Duemilanove, instead it has a different packaging. It does not have DC power jack and it also runs on the Mini-B USB cable instead of the standard one.

Here are the new released products:

 

 

 Here are the technical specifications of Arduino Nano:

Microcontroller	ATmega328
Architecture	AVR
Operating Voltage	5 V
Flash Memory	32 KB of which 2 KB used by bootloader
SRAM	2 KB
Clock Speed	16 MHz
Analog IN Pins	8
EEPROM	1 KB
DC Current per I/O Pins	40 mA (I/O Pins)
Input Voltage	7-12 V
Digital I/O Pins	22 (6 of which are PWM)
PWM Output	6
Power Consumption	19 mA
PCB Size	18 x 45 mm
Weight	7 g
Product Code	A000005