--- product_id: 27763963 title: "ELEGOO UNO R3 Microcontroller Board ATmega328P+ATmega16U2 with USB Cable" brand: "elegoo" price: "9.70 OMR" currency: OMR in_stock: true category: "Elegoo" url: https://www.desertcart.com.om/products/27763963-elegoo-uno-r3-microcontroller-board-atmega328p-atmega16u2-with-usb-cable store_origin: OM region: Oman --- # 16 MHz clock speed USB-A to USB-B programming cable included 14 digital I/O pins + 6 analog inputs ELEGOO UNO R3 Microcontroller Board ATmega328P+ATmega16U2 with USB Cable **Brand:** elegoo **Price:** 9.70 OMR **Availability:** ✅ In Stock ## Summary > 🚀 Elevate your projects with the ELEGOO UNO R3 – where creativity meets precision! ## Quick Answers - **What is this?** ELEGOO UNO R3 Microcontroller Board ATmega328P+ATmega16U2 with USB Cable by elegoo - **How much does it cost?** 9.70 OMR with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.om](https://www.desertcart.com.om/products/27763963-elegoo-uno-r3-microcontroller-board-atmega328p-atmega16u2-with-usb-cable) ## Best For - elegoo enthusiasts ## Why This Product - Trusted elegoo brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Versatile I/O Arsenal:** 14 digital pins and 6 analog inputs let you control LEDs, sensors, motors, and more with precision. - • **Robust ATmega328P Core:** 32KB flash memory and 16 MHz clock speed deliver reliable performance for everyday projects. - • **Seamless USB Programming:** ATmega16U2 interface ensures smooth sketch uploads and real-time serial communication. - • **Expandable Innovation Hub:** Power via USB or external supply and easily add shields for robotics, automation, and data logging. - • **Plug & Play Coding Powerhouse:** Start your maker journey instantly with USB connectivity and Arduino IDE compatibility. ## Overview The ELEGOO UNO R3 is a compact, reliable microcontroller board featuring an ATmega328P processor running at 16 MHz with 32KB flash memory. It includes 14 digital I/O pins, 6 analog inputs, and a USB-A to USB-B cable for easy programming via the ATmega16U2 interface. Ideal for makers, educators, and robotics enthusiasts, it supports Arduino IDE and offers flexible power options and expandability with shields. ## Description desertcart.com: ELEGOO UNO R3 Microcontroller Board ATmega+328P ATMEGA+16U2 with USB Cable | Compatible with Arduino IDE Projects, 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 | #17 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) | | Date First Available | April 28, 2016 | | Item Dimensions LxWxH | 3.15 x 2.36 x 0.39 inches | | Item Weight | 0.96 ounces | | Item model number | EL-CB-001 | | 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 ![ELEGOO 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.om/products/27763963-elegoo-uno-r3-microcontroller-board-atmega328p-atmega16u2-with-usb-cable](https://www.desertcart.com.om/products/27763963-elegoo-uno-r3-microcontroller-board-atmega328p-atmega16u2-with-usb-cable) --- *Product available on Desertcart Oman* *Store origin: OM* *Last updated: 2026-09-17*