Arduino Leonardo R3 Board Micro-USB

Arduino Leonardo R3 Board – The Ultimate USB-Ready Microcontroller for Makers!

Unlock limitless creativity with the Arduino Leonardo R3 Board – a powerful ATmega32u4-based microcontroller designed for USB-native applications, interactive projects, and DIY electronics. With built-in USB support, the Leonardo can act as a keyboard, mouse, or joystick, making it the perfect choice for human-interface devices, robotics, and automation projects.

Why Choose the Arduino Leonardo R3?

• Native USB Support – Emulates a keyboard, mouse, or joystick without additional drivers.
• Powerful ATmega32u4 MCU – 8-bit microcontroller with 32KB Flash, 2.5KB RAM, and 1KB EEPROM.
• Multiple I/O Options – 20 digital I/O pins (7 PWM, 12 analog) for versatile connections.
• Micro-USB Interface – Simple plug-and-play for easy programming and power supply.
• Open-Source & Community-Driven – Backed by a vast Arduino ecosystem with countless tutorials and libraries.

Perfect for a Variety of Projects

• Custom Keyboards & Game Controllers – Use USB HID functionality for unique input devices.
• Interactive Art & Robotics – Ideal for motion sensors, MIDI controllers, and automation.
• IoT & Embedded Systems – Connect to Wi-Fi, Bluetooth, or sensors for innovative projects.

Whether you’re a beginner exploring Arduino or an expert building interactive systems, the Arduino Leonardo R3 is an essential tool for every maker and developer. Get yours today and start innovating!

It has 20 digital input/output pins (of which 7 can be used as PWM outputs and 12 as analog inputs), a 16 MHz crystal oscillator, a micro USB connection,a power jack, an ICSP header, and a reset button. It contains everything needed to support the microcontroller; simply connect it to a computer with a USB cable or power it with an AC-to-DC adapter or battery to get started. Note that on the Leonardo, the Serial class refers to USB (CDC) communication; for TTL serial on pins 0 and 1, use the Serial 1 class.

The Leonardo differs from all preceding Arduino boards in that the user-programmable ATmega32U4 AVR microcontroller has built-in USB functionality, eliminating the need for a secondary processor. This makes the Leonardo more versatile: in addition to supporting a virtual (CDC) serial/COM port interface, it can appear to a connected computer as a mouse and keyboard.

Features :

• It’s a 100% pro micro Arduino Compatible Board.
• Chip: ATmega32u4
• Board Mode: LEONARDO R3

Specifications :