- Stock: In Stock
- Model: Arduino Uno R4 Minima
- SKU: 3929
Next-Generation Processing Power for Embedded Systems
The Arduino UNO R4 Minima Compatible development board brings 32-bit ARM Cortex-M4 computing performance to the classic UNO footprint. Powered by the Renesas RA4M1 microcontroller running at 48 MHz, this board delivers three times the execution speed of legacy 8-bit AVR boards along with 256 KB of Flash memory and 32 KB of SRAM. This computational headroom enables advanced signal processing, real-time math operations, and complex algorithmic tasks while maintaining complete 5V logic compatibility for seamless integration with existing components.
| Board | Name | Arduino® UNO R4 Minima |
| SKU | ABX00080 | |
| Microcontroller | Renesas RA4M1 (Arm® Cortex®-M4) | |
| USB | USB-C® | Programming Port |
| Pins | Digital I/O Pins | 14 |
| Pins | Analog input pins | 6 |
| DAC | 1 | |
| PWM pins | 6 | |
| Communication | UART | Yes, 1x |
| I2C | Yes, 1x | |
| SPI | Yes, 1x | |
| CAN | Yes 1 CAN Bus | |
| Power | Circuit operating voltage | 5 V |
| Input voltage (VIN) | 6-24 V | |
| DC Current per I/O Pin | 8 mA | |
| Clock speed | Main core | 48 MHz |
| Memory | RA4M1 | 256 kB Flash, 32 kB RAM |
| Dimensions | Width | 68.85 mm |
| Length | 53.34 mm | |
Integrated Analog and Industrial Peripherals
Engineered for sophisticated hardware control, the board features a rich suite of built-in peripherals. A true 12-bit Digital-to-Analog Converter (DAC) allows accurate generation of analog audio, custom waveforms, and control voltages without requiring external filtering networks. An integrated Operational Amplifier (OPAMP) simplifies analog signal conditioning for sensor interfacing. For industrial automation and automotive applications, a hardware Controller Area Network (CAN) bus controller is integrated directly into the silicon, enabling robust multi-device communication networks.
Enhanced Power Management and Hardware Debugging
The updated power distribution architecture supports a broad input voltage range from 6V to 24V DC through the barrel jack, enabling direct connection to standard 12V and 24V industrial power supplies without additional step-down converters. Firmware development and troubleshooting are streamlined via an on-board SWD (Serial Wire Debug) header, allowing engineers to connect external debuggers like J-Link or ST-Link for real-time memory monitoring, register inspection, and hardware breakpoint control.
Native USB-C and Human Interface Support
Featuring a modern USB-C interface for programming and serial communication, the board includes native Human Interface Device (HID) capabilities. This allows the micro-controller to simulate USB peripherals such as keyboards, mice, trackballs, or game controllers directly when connected to a host computer. The combination of hardware compatibility with standard UNO R3 shields, expanded IO functionality, and 32-bit architecture makes this board an ideal upgrade path for demanding electronics projects.
Applications and Industry Use-Cases
This board is well-suited for industrial automation controllers, automotive CAN network interfaces, high-resolution audio waveform generators, custom USB human interface devices, dynamic sensor monitoring nodes, and advanced robotics platforms requiring high-speed processing paired with traditional 5V shield compatibility.
