--- product_id: 379007070 title: "ELEGOO UNO R3 Board" brand: "elegoo" price: "R748" currency: ZAR in_stock: true reviews_count: 8 category: "Elegoo" url: https://www.desertcart.co.za/products/379007070-elegoo-uno-r3-board store_origin: ZA region: South Africa --- # 16MHz crystal oscillator speed 14 digital I/O pins + 6 analog inputs USB cable included for instant use ELEGOO UNO R3 Board **Brand:** elegoo **Price:** R748 **Availability:** ✅ In Stock ## Summary > 🚀 Elevate your DIY game with ELEGOO UNO R3 — where innovation meets instant action! ## Quick Answers - **What is this?** ELEGOO UNO R3 Board by elegoo - **How much does it cost?** R748 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/379007070-elegoo-uno-r3-board) ## 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 - • **Plug & Play Ready:** Includes USB cable so you can start coding immediately—no extra parts needed. - • **Powerful & Precise:** 16MHz clock speed with 32KB program memory ensures smooth, reliable project execution. - • **Beginner-Friendly IDE:** Seamlessly integrates with Arduino IDE, unlocking vast libraries and community support for rapid prototyping. - • **Versatile Connectivity:** 14 digital I/O pins (6 PWM) plus UART, I2C, SPI interfaces for endless sensor and shield compatibility. - • **Future-Proof Your Projects:** Ideal for smart home, robotics, and interactive art—build what others only dream of. ## Overview The ELEGOO UNO R3 is a cost-effective, Arduino-compatible development board featuring a 16MHz crystal oscillator, 32KB program memory, and 14 digital plus 6 analog I/O pins. It comes with a USB cable for immediate programming and supports standard interfaces like UART, I2C, and SPI, making it perfect for beginners and makers aiming to build smart home devices, robotics, and interactive projects. ## Description Product Description ELEGOO UNO R3 Board with USB Cable DIY projects Easy to learn programming 3 Reasons Users Choose ELEGOO UNO R3 Specifications Widely Used ELEGOO boards and stater kits for programing-learning ELEGOO UNO R3 Board ELEGOO MEGA Board ELEGOO Nano Board ELEGOO ESP-32 Board ELEGOO ESP-32 Starter Kit ELEGOO UNO R3 Starter Kit ELEGOO UNO R4 Starter Kit The computer cannot recognize the UNO R3 board? 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. The computer cannot recognize the UNO R3 board? 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. The UNO board heats up when it is powered on? 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 display heating area to check. The UNO board heats up when it is powered on? 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 display heating area to check. Unable to upload code to UNO board? (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. Unable to upload code to UNO board? (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. Do I need extra parts to start? No. The board and USB cable are included. You can start programming right away. Do I need extra parts to start? No. The board and USB cable are included. You can start programming right away. Is this suitable for 12+ students? Yes. Recommended for learners under 12 with adult guidance as needed. Is this suitable for 12+ students? Yes. Recommended for learners under 12 with adult guidance as needed. Review: Great Arduino-compatible board – perfect for DIY and aquarium projects - I bought the ELEGOO UNO R3 for a DIY project to automate water refilling in my aquarium and to control automatic dosing of plant supplements. The board worked flawlessly and was recognised instantly in the Arduino IDE. Programming was straightforward, and compatibility with libraries and sensors made the whole project much easier. The board feels well made and stable in operation, even when running continuously. Having plenty of I/O pins allowed me to connect multiple sensors and relays without any issues. The included USB cable is a nice touch, making it ready to use straight away. Overall, this is an excellent Arduino-compatible board that’s ideal for DIY projects, learning, and automation tasks. Great value for the money and highly recommended. Review: Fully compatible UNO R3 board much cheaper - This board comes with a genuine ATMega328P and works just like an original board at a much cheaper price. Highly recommended ## Features - Full IDE Compatibility: Seamlessly works with the official Arduino IDE for easy programming. Access vast libraries and examples to quickly bring your ideas to life. This UNO R3 board is an ideal and cost-effective starting point for beginners and makers. - Versatile I/O Pinout: Features 14 digital I/O pins (with 6 for PWM) and 6 analog inputs. Standard interfaces like UART, I2C, and SPI offer maximum compatibility with shields and sensors. - Balanced Memory & Performance: The ELEGOO UNO board is equipped with 32KB of program storage and 2KB of RAM, powered by a 16MHz crystal oscillator. Provides a stable foundation for a wide range of complex projects. - USB Cable Included: Comes with a standard USB cable for both programming and power. Ready to use right out of the box, supports USB 5V Input and 7V-12V DC Input. For small projects, we recommend using a 9V 1A Charger Input to ensure a stable user experience. - Limitless Applications: Our ELEGOO UNO R3 can be a perfect starting point for education, DIY projects, robotics, smart home prototypes, and interactive art installations. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09JWFTZ2V | | Best Sellers Rank | 3,457 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 6 in Microcontrollers | | Box Contents | UNO R3 Board x 1, USB Cable x 1 | | Brand | ELEGOO | | Brand Name | ELEGOO | | CPU Model | Others | | CPU model | Others | | CPU speed | 16 MHz | | Compatible Devices | PC | | Country of Origin | China | | Customer Reviews | 4.7 out of 5 stars 304 Reviews | | Manufacturer | ELEGOO | | Memory Storage Capacity | 32 KB | | Memory storage capacity | 32 KB | | Model Name | UNO R3 | | Model name | UNO R3 | | Network Connectivity Technology | USB | | Operating System | Linux, Windows 10, mac | | Processor Brand | AMD | | Processor Count | 1 | | Processor Speed | 16 MHz | | Product Warranty | 1 year manufacturer | | RAM Memory Installed | 32 KB | | RAM Memory Technology | DDR3L | | RAM memory installed size | 32 KB | | Total USB Ports | 1 | ## Product Details - **Brand:** ELEGOO - **CPU model:** Others - **Memory storage capacity:** 32 KB - **Model name:** UNO R3 - **RAM memory installed size:** 32 KB ## Images ![ELEGOO UNO R3 Board - Image 1](https://m.media-amazon.com/images/I/71y8RxITcyL.jpg) ![ELEGOO UNO R3 Board - Image 2](https://m.media-amazon.com/images/I/51BnPC+eCbL.jpg) ![ELEGOO UNO R3 Board - Image 3](https://m.media-amazon.com/images/I/71CZv9Um0UL.jpg) ![ELEGOO UNO R3 Board - Image 4](https://m.media-amazon.com/images/I/71tQG32ymxL.jpg) ![ELEGOO UNO R3 Board - Image 5](https://m.media-amazon.com/images/I/71hvRK-M-UL.jpg) ## Questions & Answers **Q: The computer cannot recognize 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 display heating area to check. **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. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great Arduino-compatible board – perfect for DIY and aquarium projects *by A***O on 24 January 2026* I bought the ELEGOO UNO R3 for a DIY project to automate water refilling in my aquarium and to control automatic dosing of plant supplements. The board worked flawlessly and was recognised instantly in the Arduino IDE. Programming was straightforward, and compatibility with libraries and sensors made the whole project much easier. The board feels well made and stable in operation, even when running continuously. Having plenty of I/O pins allowed me to connect multiple sensors and relays without any issues. The included USB cable is a nice touch, making it ready to use straight away. Overall, this is an excellent Arduino-compatible board that’s ideal for DIY projects, learning, and automation tasks. Great value for the money and highly recommended. ### ⭐⭐⭐⭐⭐ Fully compatible UNO R3 board much cheaper *by G***T on 16 May 2026* This board comes with a genuine ATMega328P and works just like an original board at a much cheaper price. Highly recommended ### ⭐⭐⭐⭐⭐ Amazing piece of hardware! *by M***S on 8 April 2023* Wow, what an amazingly great piece of hardware this is - I'm new to Arduino and the support that the platform has on the internet with the enormous array of addons that are available to unleash your ideas into reality. I has heard of these devices several years ago when working on a project for the Exhibition of the North and I was aware that certain installations were Arduino powered to make things happen in time to one another. From this I didn't really look much more into the world of open source micro processors until recently when a project came up when I thought back to the Exhibition. I researched and purchased the Elegoo Uno R3 board because of the perfect amount of digital input/outputs that the board offered, and the compatibility of the Elegoo with other components that matched the genuine Arduino specifications (at a much lower cost). So, with this platform your imagination is really the limiting factor with loads of available addons and other common industrial components that all work perfectly with the microprocessor - if you can think it, in theory you can build it using this as the 'brains' of the project. There are plenty of digital input/outputs for controlling external devices and a small set of analogue pins that can be used with rheostats etc - to my excitement I have recently discovered that using an I2C Serial Adapter Module allows you to use these analogue pins to control LCD screens and the like whilst only taking two pins rather than the rake of digital pins usually required - brilliant! (two analogue pins plus a 5V VCC feed and a GND ground pin that can be supplied via a 5V rail). The programming part of the device can be slightly daunting at first, more so if you are new to coding etc - but it really isn't that hard to learn as long as you stick to the rules of the language, there are hundreds and hundreds of videos on YouTube and walkthroughs on the internet to follow to integrate each component - if you can methodically place the code within the 'rules' of the system then it really isn't that bad at all to get things moving as you want. So, would I recommend the Elegoo Uno R3? Absolutely 100% without any hesitation - it is a fantastic platform to incorporate into your project if you need processed control with a great backup of online resources and physical add-on devices to allow the board to 'capture' information or 'control' almost anything. It can report back to itself or via bluetooth to your phone, Wifi etc. Really amazing piece of technology at a fantastically good price. I honestly wish I knew of these devices years ago! Don't be scared off with the coding, persevere as once you get the hang of it - it really isn't that hard to learn. I purchased the R3 version to build my prototype, then the Nano version to build the first few 'in the field' experiments, both versions work in the same way except the Nano is way smaller. ## Frequently Bought Together - ELEGOO UNO R3 Board for Arduino with USB Cable(Arduino-Compatible) More Faster In Transfer Rates And Better At Storage And Operation - 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 - sb components Transparent case for Arduino UNO R3 (Clear) - ROHS Compliant --- ## 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.co.za/products/379007070-elegoo-uno-r3-board](https://www.desertcart.co.za/products/379007070-elegoo-uno-r3-board) --- *Product available on Desertcart South Africa* *Store origin: ZA* *Last updated: 2026-07-11*