Product details
The Arduino Nano is a small, complete, and breadboard-friendly board based on the ATmega328 (Arduino Nano 3.x). 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.
Arduino Nano Pinout
Power Pin (Vin, 3.3V, 5V, GND): These pins are power pins
- Vin is the input voltage of the board, and it is used when an external power source is used from 7V to 12V.
- 5V is the regulated power supply voltage of the nano board and it is used to give the supply to the board as well as components.
- 3.3V is the minimum voltage which is generated from the voltage regulator on the board.
- GND is the ground pin of the board
RST Pin( Reset): This pin is used to reset the microcontroller
Analog Pins (A0-A7): These pins are used to calculate the analog voltage of the board within the range of 0V to 5V
I/O Pins (Digital Pins from D0 – D13): These pins are used as an i/p otherwise o/p pins. 0V & 5V
Serial Pins (Tx, Rx): These pins are used to transmit & receive TTL serial data.
External Interrupts (2, 3): These pins are used to activate an interrupt.
PWM (3, 5, 6, 9, 11): These pins are used to provide 8-bit of PWM output.
SPI (10, 11, 12, & 13): These pins are used for supporting SPI Communication
Inbuilt LED (13): This pin is used to activate the LED.
IIC (A4, A5): These pins are used for supporting TWI communication.
AREF: This pin is used to give reference voltage to the input voltage
