---
product_id: 27763963
title: "UNO R3 Microcontroller Board ATmega328P+ATmega16U2 with USB Cable"
price: "€ 39.55"
currency: EUR
in_stock: true
url: https://www.desertcart.com.cy/products/27763963-uno-r3-microcontroller-board-atmega328p-atmega16u2-with-usb-cable
store_origin: CY
region: Cyprus
---

# 16 MHz clock speed USB-A to USB-B cable included 14 digital I/O pins + 6 analog inputs UNO R3 Microcontroller Board ATmega328P+ATmega16U2 with USB Cable

**Price:** € 39.55
**Availability:** ✅ In Stock

## Summary

> 🚀 Elevate your maker game with ELEGOO UNO R3 — where ideas become reality!

## Quick Answers

- **What is this?** UNO R3 Microcontroller Board ATmega328P+ATmega16U2 with USB Cable
- **How much does it cost?** € 39.55 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.cy](https://www.desertcart.com.cy/products/27763963-uno-r3-microcontroller-board-atmega328p-atmega16u2-with-usb-cable)

## Best For

- Customers looking for quality international products

## Why This Product

- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Flexible Power Options:** Run via USB or 7-12V external supply to power your projects anywhere, anytime.
- • **Reliable USB Interface:** ATmega16U2 chip ensures smooth sketch uploads and serial communication every time.
- • **Expandable Maker’s Dream:** Add shields and modules effortlessly to build robotics, automation, and IoT innovations.
- • **Plug & Play Coding Powerhouse:** Start programming instantly with included USB cable and Arduino IDE compatibility.
- • **Versatile I/O for Creative Control:** 14 digital pins and 6 analog inputs let you connect LEDs, sensors, motors, and more.

## Overview

The ELEGOO UNO R3 is a compact, reliable microcontroller board featuring an ATmega328P core running at 16 MHz, 14 digital I/O pins, 6 analog inputs, and an ATmega16U2 USB interface for seamless programming. It includes a USB-A to USB-B cable and supports flexible power options, making it ideal for beginners and pros building robotics, automation, and sensor projects. Fully compatible with Arduino IDE, it’s a top choice for classrooms, coding clubs, and maker desks.

## Description

desertcart.com: ELEGOO UNO R3 Microcontroller Board ATmega328P+ATmega16U2 with USB Cable | Compatible with Arduino IDE, 32KB Flash Memory, 16MHz Clock Speed, 14 Digital I/O Pins, RoHS Compliant : Electronics

## Features

- START CODING WITH THE ELEGOO UNO R3: Connect the included USB cable, upload your first sketch, and build sensor, motor, display, and automation projects, making it a practical controller for maker desks, classrooms, coding clubs, and robotics labs
- ATMEGA328P CORE FOR EVERYDAY PROJECTS: A 16 MHz clock, 32 KB flash, 14 digital I/O pins with 6 PWM outputs and 6 analog inputs provide a versatile foundation for LEDs, buttons, relays, servos, displays and sensors
- RELIABLE USB PROGRAMMING AND CLEAR WIRING: The ATmega16U2 USB interface supports sketch uploads and serial communication, while clearly labeled headers help simplify connections to jumper wires, shields and modules
- POWER AND EXPAND YOUR WAY: Run the board from USB or a recommended 7-12 V external supply, then add compatible shields and modules for data logging, automation, robotics, test fixtures and custom electronics projects
- BOARD AND USB CABLE INCLUDED: Comes with 1 ELEGOO UNO R3 development board and 1 USB-A to USB-B data cable; breadboard, sensors, shields and power adapter are not included, and younger learners should work with an experienced adult

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Asin | B01EWOE0UU |
| Best Sellers Rank | #20 in Single Board Computers (Computers & Accessories) |
| Brand | ELEGOO |
| Computer Memory Type | 72-Pin EDO SIMM Memory |
| Customer Reviews | 4.7 4.7 out of 5 stars (5,046) 4.7 out of 5 stars |
| Date First Available | April 28, 2016 |
| Item Dimensions Lxwxh | 3.15 x 2.36 x 0.39 inches |
| Item Model Number | EL-CB-001 |
| Item Weight | 0.96 ounces |
| Manufacturer | ELEGOO |
| Number Of Processors | 1 |
| Operating System | Windows 10 |
| Processor Brand | Atmel |
| Product Dimensions | 3.15 x 2.36 x 0.39 inches |
| Ram | 2 KB DDR3 |
| Series | ELEGOO UNO R3 Board |
| Standing Screen Display Size | 3 |
| Wireless Type | Bluetooth |

## Product Details

- **Brand:** ELEGOO
- **Connectivity Technology:** USB
- **Memory Storage Capacity:** 32 KB
- **Model Name:** ELEGOO UNO R3 Board
- **Ram Memory Installed Size:** 32 KB

## Images

![UNO R3 Microcontroller Board ATmega328P+ATmega16U2 with USB Cable - Image 1](https://m.media-amazon.com/images/I/71dFhqWoFiL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: The computer cannot recognise the UNO R3 board?**
A: Please check if your computer makes a new device recognition sound when the board is plugged in. If not, use another USB cable to connect to another USB port. Please connect the UNO board to another computer to make sure it is not a computer problem.

**Q: The UNO board heats up when it is powered on?**
A: Please disconnect all connections to the control board and try to use another USB cable to check the problem. If there is still a problem, please send us a picture of the heating area for troubleshooting.

**Q: Unable to upload code to UNO board?**
A: (1) Please make sure you have selected the correct board type and port #COM. (2) When you press the reset button, does the LED flash two or three times? If not, it may be that the bootloader is broken. Or just reach out to us.

**Q: Do I need extra parts to start?**
A: No. The board and USB cable are included. You can start programming right away.

**Q: Is this suitable for 12+ students?**
A: Yes. Recommended for learners under 12 with adult guidance as needed.

## Frequently Bought Together

- ELEGOO UNO R3 Board ATmega328P with USB Cable(Arduino-Compatible) for Arduino
- ELEGOO 120pcs Multicolored Dupont Wire 40pin Male to Female, 40pin Male to Male, 40pin Female to Female Breadboard Jumper Ribbon Cables Kit Compatible with Arduino Projects
- ELEGOO 3pcs Breadboard 830 Point Solderless Prototype PCB Board Kit for Arduino Proto Shield Distribution Connecting Blocks

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.com.cy/products/27763963-uno-r3-microcontroller-board-atmega328p-atmega16u2-with-usb-cable](https://www.desertcart.com.cy/products/27763963-uno-r3-microcontroller-board-atmega328p-atmega16u2-with-usb-cable)

---

*Product available on Desertcart Cyprus*
*Store origin: CY*
*Last updated: 2026-09-27*