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Uno R4 Minima Compatible Development Board

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$2.79 $4.16 In stock

Category: Arduino

This Uno R4 Minima-compatible development board is a high-performance alternative to the classic R3 Uno, offering all the functionality of the official Arduino® UNO R4 Minima—at a more accessible price. It's perfect for makers, educators, and engineers looking for next-generation features while retaining compatibility with the Arduino ecosystem.

Built around the powerful Renesas RA4M1 32-bit Arm® Cortex®-M4 processor, this board runs at 48 MHz and offers significantly more memory and processing capability than the older Uno R3. It maintains the same physical pin layout and 5 V logic, ensuring seamless compatibility with most shields and existing Arduino projects.

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Customer Reviews (4.8 / 5 · 5 reviews)

Christopher J. ★★★★★

The 32-bit processor makes this feel noticeably snappier than my old R3, and the fact that it's pin-compatible meant I swapped it into an existing project in under five minutes. For the price, it's a solid step up without the official board's markup.

Ava ★★★★★

I swapped out my old R3 for this board and was surprised to see the 12-bit DAC already built in, which made my audio projects sound much cleaner. It’s nice to get the upgraded specs without paying official prices.

Henry V. ★★★★★

The 32-bit ARM Cortex-M4 processor handles my sensor projects way smoother than the old R3 ever did. I also love having the built-in CAN bus for more advanced prototyping without extra shields.

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