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Arduino Uno R4 Minima

Arduino Uno R4 Minima

MPN: ABX00080
Arduino
RA4M1 Arduino Uno R4 RA, Maker ARM® Cortex®-M4 MCU 32-Bit Embedded Evaluation Board
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Overview

The Arduino Uno R4 Minima is a 32-bit development board that upgrades the classic Uno form factor with the Renesas RA4M1 microcontroller. It features an Arm Cortex-M4 core running at 48 MHz, providing a significant performance boost while maintaining 5V logic compatibility and the standard shield footprint.

Why Choose This Part

The R4 Minima provides a seamless upgrade path for 5V systems that require more memory, featuring 256KB Flash and 32KB RAM. It includes advanced peripherals like a capacitive touch sensing unit (CTSU) and an on-board op-amp, all while maintaining the user-friendly Arduino environment.

Applications

High-Precision Analog Sensing
Utilizes the integrated 14-bit ADC and 12-bit DAC for more accurate sensor interfacing compared to previous 8-bit Uno generations.
Industrial Prototyping
Leverages the built-in CAN bus controller and wide 6V to 24V input voltage range for integration into industrial and automotive environments.
Real-Time Clock Applications
Integrated RTC allows for time-sensitive logging and scheduling tasks without requiring external clock modules.
USB HID Peripherals
Built-in USB 2.0 Full-Speed support enables the board to emulate keyboards, mice, or game controllers directly via the USB-C connector.

Key Specifications

Type MCU 32-Bit
Contents Board(s)
Platform Arduino Uno R4
Mounting Type Fixed
Core Processor ARM Cortex-M4
Utilized IC / Part RA4M1

Getting Started

To begin, connect the board via a USB-C cable and select 'Arduino Uno R4 Minima' in the Arduino IDE (v2.0 or newer). The board is fully compatible with existing 5V Uno shields, though developers should verify that any direct register-access code is updated for the RA4M1 architecture.

Also Consider

Arduino Uno R4 WiFi Arduino - Provides the same RA4M1 core but adds an ESP32-S3 module for Wi-Fi and Bluetooth connectivity plus an LED matrix.

Categories

Development Boards > Arduino & Compatible Education & Prototyping > Arduino Ecosystem