This is not an original Arduino brand product, it is manufactured with the same components and functionality by a different manufacturer. The Nano is a small, complete, and breadboard-friendly board based on the ATmega328. It has more or less the same functionality of the 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 3.0 has a number of facilities for communicating with a computer or other microcontrollers. The ATmega328 provides UART TTL (5V) serial communication, which is available on digital pins 0 (RX) and 1 (TX). An FTDI FT232RL on the board channels this serial communication over USB and the FTDI drivers provide a virtual com port to software on the computer. The RX and TX LEDs on the board will flash when data is being transmitted via the FTDI chip and USB connection to the computer (but not for serial communication on pins 0 and 1). Specs: Microcontroller: ATmega328 Operating Voltage (logic level): 5V Input Voltage (recommended): 7-12V Input Voltage (limits): 6-20V Digital I/O Pins: 14 (of which 6 provide PWM output) Analog Input Pins: 8 DC Current per I/O Pin: 40mA Flash Memory: 32KB (ATmega328) of which 2 KB used by bootloader SRAM: 2KB (ATmega328) EEPROM: 1KB (ATmega328) Clock Speed: 16 MHz Dimensions: 43 x 18 x 19mm Weight: 6g
