Arduino® UNO R4 Minima

The Arduino UNO R4 Minima is a highly capable microcontroller board that offers enhanced performance, increased processing power, expanded memory, and a variety of on-board peripherals. Designed to maintain compatibility with existing UNO shields and accessories, it is an ideal upgrade for makers who need more power without compromising the familiar UNO form factor and operating voltage.

Key Features

• Classic UNO Compatibility: The UNO R4 Minima retains the same form factor, pinout, and 5V operating voltage as the UNO R3, ensuring compatibility with existing shields and accessories.

• Increased Processing Power: Powered by the Renesas RA4M1 microprocessor (Arm Cortex-M4), the UNO R4 Minima offers a 48 MHz clock speed and enhanced performance, enabling you to tackle more complex projects with ease.

• Expanded Memory: With 256 kB of Flash and 32 kB of RAM, the UNO R4 Minima provides ample storage and memory for handling larger programs and data processing.

• On-Board Peripherals: The board includes a 12-bit DAC, CAN Bus, and OP AMP, providing additional flexibility and capability for more advanced designs.

• Extended Voltage Range: With an input voltage range of 6V to 24V, the UNO R4 Minima can support a wide range of power supplies, making it easier to integrate motors, LED strips, and other actuators using a single power source.

• SWD Connector: Simplifies debugging by allowing you to connect an external debugger and monitor the internal workings of your project.

• HID Support: Enables the UNO R4 Minima to simulate a mouse or keyboard when connected via USB, offering an easy way to send keystrokes and mouse movements to a computer.

Technical Specifications

• Microcontroller: Renesas RA4M1 (Arm Cortex-M4)

• USB Programming Port: USB-C

• Digital I/O Pins: 14

• Analog Input Pins: 6

• PWM Pins: 6

• DAC Pins: 1 (12-bit)

• UART: 1

• I2C: 1

• SPI: 1

• CAN Bus: 1

• Operating Voltage: 5V

• Input Voltage (VIN): 6V to 24V

• Current per I/O Pin: 8 mA

• Clock Speed: 48 MHz

• Flash Memory: 256 kB

• RAM: 32 kB

• Size: Standard UNO form factor

The Arduino UNO R4 Minima is a powerful yet familiar platform that brings together enhanced performance, additional features, and continued compatibility with the vast Arduino ecosystem. Whether you're starting out with basic projects or scaling up to more advanced applications, this board provides everything you need to bring your ideas to life.