Arduino Nano

Compact breadboard-friendly ATmega328P board with the same core as the Uno in a tiny DIP-mountable form factor.

₹1,499 + 18% GST

SKU: BOTBIT-DEV-03 · Best for: Compact robots and drones where board size and weight matter

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Overview

About Arduino Nano.

The Arduino Nano packs the same ATmega328P microcontroller and 16 MHz core as the Uno R3 into a tiny, breadboard-friendly board that plugs directly into a solderless breadboard through its DIP-style pin rows. It gives you the full Arduino experience in a footprint small enough to build into finished projects and enclosures.

It is a favourite in India for anything that has to be compact: wearables, robot brains, small IoT nodes and permanent installations where a full-size Uno would be too bulky. Because it shares the ATmega328P core, almost all Uno code, libraries and tutorials apply directly, so you keep the huge community support while shrinking the hardware. It even adds two extra analog inputs (A6 and A7) compared with the Uno.

The Nano is powered and programmed over a single USB cable and has an on-board voltage regulator, so it is easy to drop into a project. Its low cost and small size make it common to buy several at once for multiple builds.

Key features

Why it stands out.

Same ATmega328P 8-bit AVR at 16 MHz as the Arduino Uno, in a much smaller board

Breadboard-friendly DIP layout with pin headers that plug straight into a breadboard

22 digital I/O pins (6 with PWM) plus 8 analog inputs, two more analog than the Uno

32 KB Flash, 2 KB SRAM and 1 KB EEPROM matching the Uno's memory

On-board USB port and voltage regulator for single-cable power and programming

Fully compatible with Arduino IDE, Uno sketches and the vast Arduino library ecosystem

Specifications

Selection facts.

Microcontroller	Microchip ATmega328P (8-bit AVR)
Clock Speed	16 MHz
Operating Voltage	5V
Input Voltage (VIN)	7-12V
Digital I/O Pins	22 (6 provide PWM)
Analog Input Pins	8 (A0-A7)
Flash / SRAM / EEPROM	32 KB (2 KB used by bootloader) / 2 KB / 1 KB
DC Current per I/O Pin	20 mA
USB Connector	Mini-USB (classic Nano) or USB-C (Nano ESP32/newer variants)
Board Dimensions	18 x 45 mm

Applications

Where it is used.

Compact robots and drones where board size and weight matter
Wearable and portable electronics that must fit inside a small enclosure
Permanent embedded builds soldered onto a custom PCB or perfboard
Small IoT and sensor nodes paired with a wireless module
Breadboard prototyping where an Uno's shield header is unnecessary
Multi-board projects where several cheap MCUs are needed at once

Buying guide

How to choose.

Choose the Nano when you need Uno-level capability but in a footprint small enough to embed into a finished project or plug straight into a breadboard. It is ideal once you have prototyped on an Uno and want to shrink the build.

If your project relies on plug-in Arduino shields, pick the Uno instead, since the Nano has no shield header. If you need many more I/O pins, look at the Mega 2560; if you need WiFi in a small board, consider the Nano ESP32 or a Nano 33 variant.

Pair it with a breadboard, jumper wires and, for permanent builds, female header sockets so the Nano stays removable. Note the USB connector: classic Nanos use Mini-USB while some newer variants use USB-C, so buy the matching cable.

FAQ

Common questions.

Is the Nano code-compatible with the Arduino Uno?

Yes. The classic Nano uses the same ATmega328P at 16 MHz, so Uno sketches and libraries run on it directly. In the Arduino IDE just select 'Arduino Nano' as the board and, if needed, choose the correct processor/bootloader option.

Which USB cable does the Nano use?

The traditional Arduino Nano uses a Mini-USB cable, while newer variants such as the Nano ESP32 use USB-C. Check the connector shown in this listing and buy the matching cable, as cables are not always included.

Some clones use a CH340 USB chip. Does that matter?

Many low-cost Nano boards use the CH340 USB-to-serial chip instead of the original FTDI/ATmega16U2. They work the same but need the free CH340 driver installed on Windows or macOS. If the board is not detected, install that driver and pick the right port.

Can I power the Nano from a battery?

Yes. Feed 7-12V into the VIN pin (through the on-board regulator) or a clean regulated 5V into the 5V pin. Do not feed unregulated voltage into the 5V pin. For low-power battery builds, remember the on-board USB chip and power LED draw some current.

Does the Nano have more analog pins than the Uno?

Yes. The Nano exposes 8 analog inputs (A0-A7) versus the Uno's 6. The two extra pins, A6 and A7, are analog-input only and cannot be used as digital I/O, which is useful when you need more sensor readings.