Arduino Nano 3.0 - a full-featured miniature device based on microcontroller ATmega328 or ATmega168, adapted for use with a breadboard.
Arduino Nano instead of the standard uses a Mini-B USB cable
Each of the 14 digital pins on the Arduino Nano can work as input or output. Operating voltage terminals - 5V. The maximum current that can give or take one output is 40 mA. All findings are associated with the internal pull-up resistor (disconnected by default) the nominal value of 20-50 ohms.
On the platform Arduino Nano 3.0 a number of facilities for communicating with a computer, another Arduino, or microcontrollers. ATmega168 and ATmega328 support serial UART TTL (5V), digital pins 0 (RX) and 1 (TX). The on-board FTDI FT232RL chip directs the interface via USB, and the FTDI drivers provide virtual COM port on a computer program. LEDs RX and TX platform will blink during transmission of data through the FTDI or USB connection (not using serial communication via terminals 0 and 1).
Platform Arduino Nano 3.0 is programmed by software Arduino. The ATmega168 and ATmega328 are supplied with a recorded loader facilitates the recording of new programs without external programmers. Communication takes the original protocol STK500. You can also bypass the bootloader and program the microcontroller through the findings of the block ICSP (in-system programming).