Arduino Nano 3.0 with ATMEGA328
Arduino Nano 3.0 is a small, complete, and breadboard-friendly surface mount embedded version of Arduino with integrated USB, which is based on the ATmega328. It has everything that the Arduino Diecimila/Duemilanove has, electrically, with more analog input pins and an onboard +5V AREF jumper. The Nano 3.0 works with a Mini-B USB cable, and can be powered via the Mini-B USB connection, a 6-20V unregulated external power supply (pin 30), or a 5V regulated external power supply (pin 27). The power source is automatically selected to the highest voltage source.
The Nano has the breadboard-ability of the Boarduino and the Mini+USB, with a smaller footprint than either, so users have more breadboard space. It also has a pin layout that works well with the Mini or the Basic Stamp (TX, RX, ATN, GND on one side, power, and ground on the other). This 3.0 version comes with the ATMEGA328, which offers even more programming and data memory space.
Also available! Learn more about Gravitech Add-on Modules for Arduino Nano
Atmel ATmega328 8-bit AVR® microcontrollers are high-performance RISC-based devices that combine 32KB ISP Flash memory with read-while-write capabilities, 1KB EEPROM, 2KB SRAM, 23 general-purpose I/O lines, 32 general-purpose working registers, serial programmable USART, and more. Atmel ATmega328 MCUs execute powerful instructions in a single clock cycle, allowing the device to achieve throughputs approaching 1 MIPS per MHz while balancing power consumption and processing speed. These Atmel MCUs are designed for use in industrial automation and home and building automation.