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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.
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🇺🇸 Ship from USA · On Agora since 2025
$15.99