Nano

The Arduino Nano is Arduino's classic breadboard friendly designed board with the smallest dimensions. The Arduino Nano comes with pin headers that allow for an easy attachment onto a breadboard and features a Mini-B USB connector.

Main Features

The classic Nano is the oldest member of the Arduino Nano family boards. It is similar to the Arduino Duemilanove but made for the use of a breadboard and has no dedicated power jack. Successors of the classic Nano are for example the Nano 33 IoT featuring a WiFi module or the Nano 33 BLE Sense featuring Bluetooth® Low Energy and several environment sensors.

ATmega328 microcontroller

The ATMega328 CPU runs with 16 MHz and features 32 KB of Flash Memory (of which 2 KB used by bootloader).

Datasheet

Tiny footprint

With a length of 45 mm and a width of 18 mm the Nano is Arduino's smallest board and weighs only 7 grams.

Made for breadboard

The Nano is made for breadboard use and features soldered headers for all pins, allowing to attach the board easily on any breadboard.

Tech Specs

Here you will find the technical specifications for the Arduino® Nano.

Board	Name	Arduino® Nano
Board	SKU	A000005
Microcontroller	ATmega328
USB connector	Mini-B USB
Pins	Built-in LED Pin	13
	Digital I/O Pins	14
	Analog input pins	8
	PWM pins	6
Communication	UART	RX/TX
	I2C	A4 (SDA), A5 (SCL)
	SPI	D11 (COPI), D12 (CIPO), D13 (SCK). Use any GPIO for Chip Select (CS).
Power	I/O Voltage	5V
	Input voltage (nominal)	7-12V
	DC Current per I/O Pin	20 mA
Clock speed	Processor	ATmega328 16 MHz
Memory	ATmega328P	2KB SRAM, 32KB flash 1KB EEPROM
Dimensions	Weight	5gr
	Width	18 mm
	Length	45 mm

Compatibility

Essentials

First Steps

Quickstart Guide

All you need to know to get started with your new Arduino board.

Nano Hardware Design Guide

Learn how to create your own custom hardware that is compatible with the Arduino Nano Family.

Suggested Libraries

Servo

The Servo library allows an Arduino board to control RC (hobby) servo motors.

Wire

This library allows you to communicate with I2C / TWI devices.

Arduino Basics

Built-in Examples

Built-in Examples are sketches included in the Arduino IDE and demonstrate all basic Arduino commands.

Learn

Discover interesting articles, principles and techniques related to the Arduino ecosystem.

Language References

Arduino programming language can be divided in three main parts: functions, values (variables and constants), and structure.

Resources

Interactive Viewer

Interact with the schematics, the PCB and a 3D model of the product.

Open Viewer

Pinout Diagram

A diagram showing the functions and the arrangement of the pins on your product.

Open Diagram

Downloads

Full Pinout

Schematics