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Home / Development Boards & Control Boards / Leonardo R3 Microcontroller Development Board - Official ATMEGA32U4 Version with Data Cable, Arduino Compatible
Development Boards & Control Boards

Attributes

Brand -
Category Electronic Components / Maker DIY / Development Boards & Control Boards
Origin -
Microcontroller ATmega32U4
Operating Voltage 5V
Input Voltage (recommended) 7-12V
Digital I/O Pins 20
PWM Channels 7
Analog Input Channels 12
DC Current per I/O Pin 40 mA
Flash Memory 32 KB
SRAM 2.5 KB
Clock Speed 16 MHz

5 reviews

A

Anonymous

Apr 14, 2026

Rating: 5/5

Beginner friendly

Easy to set up on Windows 10. Great starter board for USB projects.

A

Anonymous

Apr 07, 2026

Rating: 4/5

Great board, minor issue

Works well but the USB cable included felt a bit flimsy. Board itself is solid.

A

Anonymous

Apr 02, 2026

Rating: 5/5

Excellent Leonardo Clone

Pinout matches the official specs. Compiles without issues in Arduino IDE.

A

Anonymous

Mar 24, 2026

Rating: 5/5

Perfect for HID projects

Love the native USB support. Makes creating keyboard macros so much easier than the Uno.

A

Anonymous

Feb 24, 2026

Rating: 5/5

Fast shipping

Board arrived quickly and was well packaged. Tested all pins successfully.

5 FAQ

Q: What is the recommended power supply?

A: We recommend 7-12V via the power jack or 5V via USB.

Q: Do I need to install specific drivers?

A: Most modern OSs recognize it automatically. Older Windows versions may need a driver.

Q: Can I use this to emulate a keyboard?

A: Yes, the ATmega32U4 has native USB support for HID devices.

Q: Is this compatible with the Arduino IDE?

A: Yes, fully compatible. Just select Arduino Leonardo in the board manager.

Q: Are the logic levels 3.3V or 5V?

A: This board operates at 5V logic levels. Please check your sensors accordingly.

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