---
product_id: 60379488
title: "Leonardo R3 Microcontroller Development Board with USB Cable Kit for Arduino Project"
brand: "keyestudio"
price: "$800"
currency: MXN
in_stock: true
url: https://www.desertcart.mx/products/60379488-leonardo-r3-microcontroller-development-board-with-usb-cable-kit-arduino
store_origin: MX
region: Mexico
---

# 16 MHz ATmega32u4 MCU Built-in USB communication 20 digital I/O pins + 12 analog inputs Leonardo R3 Microcontroller Development Board with USB Cable Kit for Arduino Project

**Brand:** keyestudio
**Price:** $800
**Availability:** ✅ In Stock

## Summary

> 🚀 Unlock your creative genius with the Leonardo R3 — where innovation meets effortless coding!

## Quick Answers

- **What is this?** Leonardo R3 Microcontroller Development Board with USB Cable Kit for Arduino Project by keyestudio
- **How much does it cost?** $800 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.mx](https://www.desertcart.mx/products/60379488-leonardo-r3-microcontroller-development-board-with-usb-cable-kit-arduino)

## 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

- • **Plug & Play Ready:** Includes micro USB cable and supports Windows 10 for instant setup and development.
- • **Versatile I/O Arsenal:** 20 digital pins (7 PWM-capable) plus 12 analog inputs for complex, multi-sensor projects.
- • **Rock-Solid Performance:** Powered by a 16 MHz ATmega32u4 processor for smooth, reliable coding and execution.
- • **Eco-Friendly & Certified:** FCC & CE certified with rigorous voltage and current testing—quality you can trust.
- • **Seamless USB Integration:** Built-in USB controller lets your board act as a mouse or keyboard—no extra chips needed.

## Overview

The KEYESTUDIO Leonardo R3 is a compact, 16 MHz microcontroller development board based on the ATmega32u4 chip, featuring 20 digital I/O pins (7 PWM), 12 analog inputs, and built-in USB communication that enables it to emulate mouse and keyboard functions. Certified FCC and CE, it comes with a USB cable and supports Windows 10, making it an ideal choice for professional-grade Arduino projects.

## Description

Sponsored Ad - Leonardo R3 Microcontroller Development Board with USB Cable Kit for Arduino Project

## Features

- Please NOTE: Open the Arduino IDE, you’ll need to click the “Tools”, then select the Board that corresponds to your Arduino. If you don't choose the correct development board type, it will cause the compilation to fail to transfer. So this is a place that needs special attention.
- The keyestudio Leonardo is a microcontroller board based on the ATmega32u4，It has 20 digital input/output pins (of which 7 can be used as PWM outputs), 12 analog inputs, a 16 MHz crystal oscillator, a micro USB connection, a power jack, an ICSP header, and a reset button.
- The Leonardo differs from other boards using separate USB-Serial chip in that the ATmega32u4 has built-in USB communication, eliminating the need for a secondary processor.
- This allows the Leonardo to appear to a connected computer as a mouse and keyboard.
- Has fcc and ce certification that they are made from environmentally friendly production technology and materials, made function,voltage, current testing before packaging

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Standing screen display size | 3.42 Inches |
| Processor | 16 MHz 5x86 |
| RAM | 1 GB SRAM |
| Wireless Type | Bluetooth |
| Brand | KEYESTUDIO |
| Series | KEYESTUDIO Leonardo R3 |
| Item model number | KE-0011 |
| Operating System | Windows 10 |
| Item Weight | 2.08 ounces |
| Product Dimensions | 2.7 x 2.09 x 0.17 inches |
| Item Dimensions  LxWxH | 2.7 x 2.09 x 0.17 inches |
| Color | leonardo r3 |
| Processor Brand | Microchip Technology |
| Number of Processors | 1 |
| Computer Memory Type | DDR3 SDRAM |
| Voltage | 5 Volts |
| Manufacturer | keyes |
| Language | English |
| ASIN | B0786LJQ8K |
| Is Discontinued By Manufacturer | No |
| Date First Available | November 13, 2017 |

## Product Details

- **Brand:** KEYESTUDIO
- **Model Name:** KEYESTUDIO Leonardo R3
- **Ram Memory Installed Size:** 5 MB
- **Memory Storage Capacity:** 32 KB
- **CPU Model:** 5X86

## Images

![Leonardo R3 Microcontroller Development Board with USB Cable Kit for Arduino Project - Image 1](https://m.media-amazon.com/images/I/61w4INl9jaL.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

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**Shop now:** [https://www.desertcart.mx/products/60379488-leonardo-r3-microcontroller-development-board-with-usb-cable-kit-arduino](https://www.desertcart.mx/products/60379488-leonardo-r3-microcontroller-development-board-with-usb-cable-kit-arduino)

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*Product available on Desertcart Mexico*
*Store origin: MX*
*Last updated: 2026-02-20*