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 |