Arduino UNO R4 Minima Development Board, 32-Bit Arm Cortex-M4

The Arduino UNO R4 Minima is a 32-bit development board powered by the Renesas RA4M1 Arm Cortex-M4 microcontroller, delivering faster clock speeds and expanded memory in the classic UNO layout. Operating at 5 V with the traditional pinout, it maintains full compatibility with existing shields and accessories. It is an ideal board for students, hobbyists, and makers looking to expand their coding and electronics projects.

Classic UNO form factor compatibility

The UNO R4 Minima preserves the standard pinout, physical form factor, and 5 V operating voltage of the UNO R3. This guarantees seamless compatibility with existing Arduino shields and hardware designs.

Upgraded processing and memory

Equipped with a 48 MHz Renesas RA4M1 processor, 256 kB flash memory, and 32 kB RAM, this board handles more complex calculations and larger programs with ease.

Rich on-board peripherals

The board features a 12-bit DAC, CAN bus, and operational amplifier alongside standard UART, I2C, and SPI communication. It also includes an SWD debugging connector and native USB HID support to emulate a mouse or keyboard.

Extended power input tolerance

With an expanded input voltage range of 6 V to 24 V on the VIN pin, the board integrates smoothly with higher-voltage components like motors and LED strips using a single power supply.