Arduino Nano

 The Arduino Nano is a small, complete, and breadboard-friendly board based on the ATmega328 (Arduino Nano 3.0). 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. The Nano was designed and is being produced by Gravitech.

  Technical specifications Microcontroller ATmega168 or ATmega328 Operating Voltage 5V Input Voltage (recommended) 7-12 V Input Voltage (limit) 6-20 V Digital I/O Pins 14 PWM Digital I/O Pins 6 Analog Input Pins 8 DC Current per I/O Pin 40 mA Flash Memory 16 kB (ATmega168) or 32 kB (ATmega328) Flash Memory for Bootloader 2 kB SRAM 1 kB (ATmega168) or 2 kB (ATmega328) EEPROM 512 bytes (ATmega168) or 1 kB (ATmega328) Clock Speed 16 MHz   Resources Arduino Nano Schematic Arduino Nano Eagle Files Arduino Nano Document