The Arduino Nano V3 is a compact, lightweight development board built around the ATmega328P microcontroller. It is fully compatible with the Arduino IDE, so you can write, compile and upload sketches with the familiar Arduino workflow.

Its small size makes it ideal for projects where space is limited, and its pin headers plug straight into a breadboard for fast prototyping. It offers multiple digital and analogue I/O pins for connecting sensors, actuators and modules. Programming is done over USB — the “With USB Cable” package includes a USB Mini-B cable for easy programming, while the “Without USB Cable” package is the board only. Ideal for students, hobbyists and professionals.

Applications: Arduino projects, robotics, sensor and module interfacing, STEM learning.

Pair it with an MB102 breadboard and jumper wires for solderless prototyping, or step up to the larger Arduino UNO R3 for standard-size shields.

How to program the Arduino Nano V3

1. Connect the board to your computer with the USB Mini-B cable.
2. Open the Arduino IDE.
3. Go to Tools > Board and select “Arduino Nano”.
4. Go to Tools > Port and select the COM port the Nano appears on.
5. Upload your sketch.

Try this Blink example to test your board:

// Blink the on-board LED on pin 13
void setup() {
  pinMode(13, OUTPUT);
}

void loop() {
  digitalWrite(13, HIGH);   // turn the LED on
  delay(1000);              // wait one second
  digitalWrite(13, LOW);    // turn the LED off
  delay(1000);              // wait one second
}

Frequently asked questions

What is the difference between the two packages?

The “With USB Cable” package includes the Arduino Nano V3 board plus a USB Mini-B cable for programming. The “Without USB Cable” package is the board only — choose it if you already own a suitable USB Mini-B cable.

Is the Arduino Nano V3 compatible with the Arduino IDE?

Yes. It is fully compatible with the Arduino IDE — select board “Arduino Nano”, pick the right COM port and upload your sketch.

Can it be used on a breadboard?

Yes. Its pin headers plug straight into a standard breadboard such as the MB102 breadboard, making it ideal for prototyping.

Which cable does the Arduino Nano V3 need?

It needs a USB Mini-B cable for programming and power. The “With USB Cable” package already includes one.

What is the difference between the Arduino Nano and the Arduino Uno?

Both use the ATmega328P microcontroller, but the Nano is much smaller and breadboard-friendly, while the Arduino UNO R3 is larger and accepts standard shields.

Is the USB cable included?

Only in the “With USB Cable” package. The “Without USB Cable” package contains the board only.