--- product_id: 60379488 title: "KEYESTUDIO Leonardo R3 Microcontroller Development Board with USB Cable Kit for Arduino Project" brand: "keyestudio" price: "Β£20.84" currency: GBP in_stock: true category: "Keyestudio" url: https://www.desertcart.co.uk/products/60379488-keyestudio-leonardo-r3-microcontroller-development-board-with-usb-cable-kit store_origin: GB region: United Kingdom --- # Official Wiki & full tech support Native USB HID support 20 digital I/O pins + 12 analog inputs KEYESTUDIO Leonardo R3 Microcontroller Development Board with USB Cable Kit for Arduino Project **Brand:** keyestudio **Price:** Β£20.84 **Availability:** βœ… In Stock ## Summary > πŸš€ Unlock your DIY genius with the Leonardo R3 – where creativity meets seamless coding! ## Quick Answers - **What is this?** KEYESTUDIO Leonardo R3 Microcontroller Development Board with USB Cable Kit for Arduino Project by keyestudio - **How much does it cost?** Β£20.84 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/60379488-keyestudio-leonardo-r3-microcontroller-development-board-with-usb-cable-kit) ## Best For - keyestudio enthusiasts ## Why This Product - Trusted keyestudio brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Zero Setup Headaches:** Beginner-friendly Arduino IDE compatibility with included USB cable for instant coding flow. - β€’ **Certified Reliability:** FCC & CE certified with rigorous testingβ€”your projects deserve trusted hardware. - β€’ **Plug & Play USB HID Magic:** Emulate keyboards & mice natively with ATmega32U4β€”no extra chips needed. - β€’ **Expand Your Creative Universe:** 20 digital I/O pins and 12 analog inputs let you build anything from robots to interactive art. - β€’ **Expert Guidance at Your Fingertips:** Access official Wiki, pinouts, and sample codes to accelerate your innovation journey. ## Overview The KEYESTUDIO Leonardo R3 is a compact, FCC/CE certified microcontroller board powered by the ATmega32U4 chip, featuring native USB HID capabilities for keyboard and mouse emulation. It offers 20 digital I/O pins, 12 analog inputs, and supports UART, I2C, and SPI protocols. Designed for both beginners and pros, it includes a USB cable and official Wiki support for hassle-free Arduino IDE integration and rapid prototyping. ## Description desertcart.com: KEYESTUDIO Leonardo R3 Microcontroller Development Board with USB Cable Kit for Arduino Project : Electronics ## Features - [Beginner-Friendly Setup – No Frustration] - New to Arduino? Here's a pro tip: Open Arduino IDE, go to Tools > Board, and select "Arduino Leonardo" – that's it! Choose correctly and upload your code smoothly without compilation errors. Includes a USB cable for true plug-and-play convenience. - [Official Wiki & Full Technical Support] - Backed by a dedicated official Wiki – your complete resource for detailed specs, pinout diagrams, driver setup, and sample codes. Whether you're a beginner or a pro, get the documentation you need to bring your projects to life faster and with confidence. - [Native HID – Keyboard/Mouse Emulation] - Powered by the ATmega32U4 microcontroller with built-in USB communication – no extra chip needed! Emulate a keyboard or mouse directly for custom game controllers, automation tools, programmable shortcut panels, and more. Unleash your creativity with true plug-and-play HID functionality. - [FCC/CE Certified] - Engineered with eco-friendly materials and rigorously tested – every single board undergoes full functional, voltage, and current inspections before packaging. FCC and CE certified to ensure safety, reliability, and peace of mind for your critical projects. - [Rich I/O for Endless Possibilities] - Features 20 digital I/O pins (7 PWM), 12 analog inputs, a 16 MHz crystal oscillator, and supports UART, I2C, and SPI. Easily connect sensors, motors, displays, and countless modules – the perfect brain for robotics, interactive art, DIY electronics, and rapid prototyping. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0786LJQ8K | | Best Sellers Rank | #870 in Single Board Computers (Computers & Accessories) | | Brand | KEYESTUDIO | | Built-In Media | NO | | CPU Model | AMD A Series | | Compatible Devices | Computers (Windows, Mac OS X, Linux) | | Connectivity Technology | USB | | Customer Reviews | 4.6 4.6 out of 5 stars (643) | | Item Dimensions L x W x H | 2.7"L x 2.09"W x 0.17"H | | Item Weight | 2.08 ounces | | Manufacturer | keyes | | Memory Storage Capacity | 32 KB | | Mfr Part Number | ks0248 | | Model Name | KEYESTUDIO Leonardo R3 | | Model Number | KE-0011 | | Number of Items | 1 | | Number of Packs | 1 | | Operating System | Windows 10 | | Processor Count | 1 | | Processor Speed | 16 MHz | | RAM Memory Installed | 5 MB | | RAM Memory Technology | SRAM | | UPC | 600346571761 606184533497 600346574199 | | Wireless Compability | Bluetooth | ## Product Details - **Brand:** KEYESTUDIO - **CPU Model:** AMD A Series - **Memory Storage Capacity:** 32 KB - **Model Name:** KEYESTUDIO Leonardo R3 - **Ram Memory Installed Size:** 5 MB ## Images ![KEYESTUDIO Leonardo R3 Microcontroller Development Board with USB Cable Kit for Arduino Project - Image 1](https://m.media-amazon.com/images/I/61w4INl9jaL.jpg) ![KEYESTUDIO Leonardo R3 Microcontroller Development Board with USB Cable Kit for Arduino Project - Image 2](https://m.media-amazon.com/images/I/61rc9Fii1AL.jpg) ![KEYESTUDIO Leonardo R3 Microcontroller Development Board with USB Cable Kit for Arduino Project - Image 3](https://m.media-amazon.com/images/I/71qAyefUQjL.jpg) ![KEYESTUDIO Leonardo R3 Microcontroller Development Board with USB Cable Kit for Arduino Project - Image 4](https://m.media-amazon.com/images/I/71TTOI+qaXL.jpg) ![KEYESTUDIO Leonardo R3 Microcontroller Development Board with USB Cable Kit for Arduino Project - Image 5](https://m.media-amazon.com/images/I/61kpouMDzBL.jpg) ## Questions & Answers **Q: is this leonardo HID compatible?** A: Yes **Q: Is this the same as a normal leonardo, or does the "development" in the name imply some other functionality?** A: I was looking for an UNO R3 (2016!) for a Grove sensor project. It is a regular, normal UNO board. I used the Arduino IDE to program Seeed Studio's Grove watering, temperature sensors. I also purchased a similar board "MakerBest Hight Quality Compatible Arduino UNO R3 ATmega328P Development Kits " for Elenco's Snapno kit. Both work fine and both for developing projects using UNO boards. Hope this helps **Q: will this device run micropython?** A: sorry ,it can't **Q: Is there a program to be installed?** A: It's Ardunio-based, so you'll have to write the code and load it in. There are a lot of tutorials out on the web and pre-existing code that make it easy (or easier than starting from scratch). ## Frequently Bought Together - KEYESTUDIO Leonardo R3 Microcontroller Development Board with USB Cable Kit for Arduino Project - EDGELEC 120pcs Breadboard Jumper Wires 10cm 15cm 20cm 30cm 40cm 50 cm 100cm Wire Length Optional Dupont Cable Assorted Kit Male to Female Male to Male Female to Female Multicolored Ribbon Cables - WWZMDiB Mini USB 2.0 to TTL Converter Serial Adapter 3.3V 5V Compatible with CP2102 Chip UART Programming --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/60379488-keyestudio-leonardo-r3-microcontroller-development-board-with-usb-cable-kit](https://www.desertcart.co.uk/products/60379488-keyestudio-leonardo-r3-microcontroller-development-board-with-usb-cable-kit) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-08-19*