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Arduino UNO R4 Minima development board
The Arduino UNO R4 Minima is a compact 32-bit ARM Cortex-M4 development board, ideal for embedded projects, IoT applications, and Arduino-compatible prototyping.
The Arduino UNO R4 Minima Development Board is the latest compact version of the popular Arduino UNO series, designed for high-performance embedded system projects in a minimal form factor. Powered by the Renesas RA4M1 32-bit ARM Cortex-M4 microcontroller, it delivers enhanced speed, memory, and computational power compared to traditional UNO boards.
Key features of the board include:
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Compact, breadboard-friendly design for space-constrained projects.
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14 digital I/O pins (including PWM outputs) and 6 analog inputs.
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Integrated USB interface for programming and power.
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Full compatibility with Arduino IDE, enabling easy programming and access to a wide library ecosystem.
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Support for shields and modules, making it ideal for sensors, motors, displays, and IoT connectivity.
The UNO R4 Minima is perfect for IoT applications, robotics, sensor-based systems, and embedded learning projects, providing the versatility of a full-featured Arduino in a smaller, more efficient package.

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- Â Communication: Asynchronous 9600 bps serial (8N1)
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 Interface operation is simpler
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5V single power supply.
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Output directly connected to the speaker, can drive 4 ohms 3W / 8 ohm 2W speakers
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Busy status output, can be connected to the microcontroller IO or indicator light, no need to be left floating.
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Dimension: 33*27.5mm
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With mounting holes

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