Arduino Compatible R3 Leonardo

Name: Arduino Compatible R3 Leonardo
Brand: Official Hobby Components Online Store | Buy Electronic Kits, Components, Boards, Shields, Modules
SKU: SKU-deadc450d1fa
Price: 4.2 USD
Availability: InStock
Rating: 4.8 (5 reviews)

Arduino Compatible R3 Leonardo - Main image

$4.2 ~~$5.83~~ In stock

Category: Development Boards

The Arduino Leonardo is a microcontroller board based on the ATmega32u4. It has 20 digital input/output pins (of which 7 can be used as PWM outputs and 12 as analogue inputs), a 16 MHz crystal oscillator, a micro USB connection, a power jack, an ICSP header, and a reset button.

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Customer Reviews (4.8 / 5 · 5 reviews)

Michael ★★★★★ Oct 22, 2026

Got this board for a MIDI controller project and the ATmega32u4 made it plug-and-play as a native USB device, no extra chips needed. The extra analog inputs were a nice bonus for adding a few more sensors. It's working flawlessly so far.

Emily A. ★★★★★ Oct 21, 2026

Used this Leonardo to build a custom USB keyboard with analog trimpot inputs, and the ATmega32u4's native USB handling made it plug-and-play in minutes. The 12 analogue pins were perfect for mapping multiple sensor values without extra hardware.

John ★★★★★ Oct 20, 2026

The 20 digital pins gave me plenty of room for a button matrix and LEDs, and the 16 MHz crystal kept everything running smoothly without any hiccups. It's the first board I've used where the ATmega32u4's native USB made setup feel effortless.