Arduino R4 Minima - Compatible

Enhanced and improved, the Arduino UNO R4 Minima Compatible is armed with a powerful 32-bit microcontroller courtesy of Renesas. Brace yourself for increased processing power, expanded memory, and a whole new level of on-board peripherals. The best part? Compatibility with existing shields and accessories remains intact, and there's no need to make any changes to the standard form factor or 5 V operating voltage.

Features

• Hardware compatibility with UNO form factor, 5 V operating voltage, as the UNO R3. Compatible with existing shields and projects
• The UNO R4 Minima introduces a range of on-board peripherals, including a 12-bit DAC, CAN BUS, and OP AMP
• The UNO R4 Minima now supports a wider input voltage range, allowing power supplies up to 24 V
• SWD connector, Simply connect an external debugger and effortlessly monitor the inner workings of your code and hardware
• HID support: The UNO R4 Minima comes with built-in HID (Human Interface Device) support, enabling it to simulate a mouse or keyboard

Quick Spec

• Board: Arduino® UNO R4 Minima
• Input voltage (VIN): 6-24 V
• Logic: 5V
• Microcontroller: Renesas RA4M1 (Arm® Cortex®-M4)
• Memory: 256 kB Flash, 32 kB RAM
• Clock speed: 48 MHz
• Port: USB USB-C (Programming Port)
• Pins: 14 x Digital I/O Pins
• 6 x Analog input pins
• 1 x DAC
• 6 x PWM pins
• 1 x I2C
• 1 x SPI
• 1 x CAN

FAQs

Can I use hardware compatible with the Arduino UNO R3 with the Arduino UNO R4 Minima? Yes, the Arduino UNO R4 Minima was specifically designed to ensure compatibility with previous shields and compatible hardware developed for the Arduino UNO R3. The UNO R4 Minima maintains the same mechanical and electrical compatibility, allowing you to seamlessly use your existing shields and hardware with the new board. This makes it easy to upgrade to the UNO R4 Minima without the need for significant changes or adaptations to your projects.

Can I use my sketch developed for the UNO R3 in the UNO R4 Minima? Yes, if your sketch was developed using the Arduino API. In case you are using instructions only available for the AVR architecture, some changes need to be made to ensure compatibility.

Are all libraries compatible with the UNO R3 also compatible with the UNO R4 Minima? No, some UNO R3 libraries use instructions of the AVR architecture that are not compatible with the architecture of the UNO R4 Minima, however there are libraries that have already been ported as part of our early adopters program or are based on the Arduino API.

Resources

• Arduino UNO R4 Setup Guide
• Arduino UNO R4 Cheat Sheet and Code Snippets
• Arduino UNO R4 Minima Datasheet
• Arduino UNO R4 Minima Schematic