Arduino Leonardo R3 ATmega32U4 Development Board

Two product options are listed: a version without USB and a version with USB. Choose the appropriate variant for your intended setup, and confirm how the selected board connects and is programmed before use. The USB-equipped version is the option to consider when you need the listed USB connection.

Prototype controller projects with this Leonardo R3 development board based on the ATmega32U4, as identified in the listing. Its Arduino-style format supports development work where a compact controller board is needed for a custom electronic build.

• ✅ Select the USB or no-USB variant to suit your project, and check the board’s exact connection requirements before adding it to your build.

Select the USB or no-USB variant to suit your project, and check the board’s exact connection requirements before adding it to your build.

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