Leonardo R3 ATmega32U4 Arduino development board with included blue USB cable for programming and power

Leonardo R3 ATmega32U4 Development Board for Arduino

SKU AA206

$15.99 USD Shipping & tax calculated at checkout
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Arduino Leonardo R3 ATmega32U4 development board with native USB for HID keyboard/mouse, serial control, sensors and displays; supports I2C, SPI, UART for robotics, home automation, and prototyping.

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Overview

Product Overview

Leonardo R3 ATmega32U4 development board is an Arduino-compatible microcontroller board built for USB-connected prototyping, control, and interactive projects. Based on the ATmega32U4, it combines processing and native USB support on one board, making it a strong choice for projects that need serial communication, USB HID keyboard or mouse emulation, sensors, relays, displays, or actuator control. Use it with the Arduino IDE for robotics, home automation, classroom builds, and embedded experiments, with libraries and examples that fit standard Arduino workflows for makers, students, and rapid hardware development.

Questions & answers

Frequently asked questions

Yes, the Leonardo R3 works seamlessly with the Arduino IDE. It supports standard Arduino libraries and examples, making it suitable for various projects, including robotics and home automation.
The Leonardo R3 development board is easy to set up. Simply connect it to your computer via USB, install the Arduino IDE, and start coding using existing libraries and examples tailored for Arduino-compatible boards.
The Leonardo R3 board features native USB support, allowing it to communicate directly with computers for serial communication and USB HID keyboard or mouse emulation. The ATmega32U4 processor handles these interfaces efficiently.
Yes, the Leonardo R3 is ideal for home automation projects. It can integrate with sensors, relays, and displays, enabling complex control tasks while leveraging its USB communication for flexibility and ease of development.
Ensure you have the correct USB drivers installed and your Arduino IDE updated. Try using a different USB cable or port. If issues persist, contact the vendor for troubleshooting or take advantage of the 30-day return policy.

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What's included

Features & Specs

Leonardo R3 BoardLeonardo R3 is an Arduino-compatible development board based on the ATmega32U4 microcontroller.

Native USB SupportNative USB support enables direct USB-connected prototyping and device communication on one board.

USB HID ControlThe ATmega32U4 supports USB HID keyboard and mouse emulation for interactive projects.

Serial CommunicationBuilt for serial communication tasks used in control, testing, and embedded development workflows.

Arduino IDE ReadyWorks with the Arduino IDE using standard Arduino libraries, examples, and programming workflows.

Control ApplicationsSuitable for sensors, relays, displays, and actuator control in custom electronics projects.

Typical Use CasesCommon uses include robotics, home automation, classroom builds, and embedded experiments.

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