Microcontroller Tutorials

Arduino, Raspberry Pi, PIC, Beaglebone Resources

Arduino NANO Pinout Diagram

by Roland Pelayo

The Arduino NANO is a smaller, breadboard-friendlier version of the Arduino UNO. This Arduino NANO Pinout diagram reference is a handy guide for using this board:

Arduino NANO Pinout

Arduino NANO Pinout Description

The Arduino NANO pins, similar to the UNO, is divided into digital pins, analog pins and power pins. The NANO has two more analog pins, however. There are pins with secondary functions on the table below. These secondary pins are mostly communications pins such as I2C and SPI.

Digital Pins

Pin Name
Description
Secondary Function
Description

D0
Digital Pin 0
RX
Receive pin for Serial UART

D1
Digital Pin 1
TX
Transmit pin for Serial UART

D2
Digital Pin 2
INT0
Interrupt Pin 0

D3
Digital Pin 3
INT1
Interrupt Pin 1

D4
Digital Pin 4

D5
Digital Pin 5

D6
Digital Pin 6

D7
Digital Pin 7

D8
Digital Pin 8

D9
Digital Pin 9

D10
Digital Pin 10
SS
SPI Slave Select Pin

D11
Digital Pin 11
MOSI
SPI Master Out-Slave In

D12
Digital Pin 12
MISO
SPI Master In-Slave Out

D13
Digital Pin 13
SCK
SPI Clock

Analog Pins

Pin Name
Description
Secondary Function
Description

A0
Analog Pin 0

A1
Analog Pin 1

A2
Analog Pin 2

A3
Analog Pin 3

A4
Analog Pin 4
SDA
I2C Data Out

A5
Analog Pin 5
SCL
I2C Clock

A6
Analog Pin 6
SCL

A7
Analog Pin 7
SCL

 

Power Pins

Pin Name
Description

5V
5V (Regulated) Source

3.3V
3.3V Source

GND
Ground

RESET
Reset

Vin
DC Jack Input Voltage

IOREF
I/O Reference Voltage. This pin is connected to 5V for the UNO

AREF
ADC Reference Voltage. Insert other voltage (0-5V only) to use as reference for analog conversions

Also notice that the ATMega pins for each Arduino pin are also provided in the pinout diagram above. For details on how to use these pins, see Arduino Port Manipulation.

Arduino NANO Schematic Diagram

The Arduino NANO is originally designed by Gravitech and has been included as one of the official Arduino boards. Here is its schematic diagram:

Leave a Reply

Your email address will not be published. Required fields are marked *