Product Description (Detailed):
Step into the future of microcontroller development with the powerful Arduino UNO R4 Minima – your gateway to advanced projects and enhanced performance. This revolutionary board takes the beloved Arduino UNO form factor and elevates it with a robust 32-bit Arm Cortex-M4 microcontroller (Renesas RA4M1), offering a significant leap in processing power, memory, and peripheral capabilities compared to its predecessors. Perfect for both seasoned developers seeking more muscle and ambitious beginners ready to scale up their creations.
The Arduino UNO R4 Minima boasts a much faster clock speed (typically 48 MHz) and substantially more Flash memory (256 KB) and SRAM (32 KB), enabling complex computations, intricate algorithms, and larger sketches without compromise. This powerful upgrade opens doors to more sophisticated IoT applications, advanced robotics, real-time data processing, and industrial control systems that were previously challenging on 8-bit boards. Despite its enhanced performance, the R4 Minima maintains the iconic UNO form factor and pinout, ensuring high compatibility with existing shields and tutorials designed for the UNO R3, making your transition seamless.
Key features include a modern USB-C connector for programming and power, improved analog-to-digital converter (ADC) resolution, and a dedicated Digital-to-Analog Converter (DAC) for generating true analog voltage outputs. It also offers enhanced safety features with an integrated error detection and correction (ECC) memory. Whether you're developing high-precision sensor systems, complex motor control, or exploring advanced communication protocols, the Arduino UNO R4 Minima provides the speed, memory, and processing capabilities you need.
The Arduino UNO R4 Minima is a next-generation evolution of the UNO platform, powered by the Renesas RA4M1 32-bit Arm Cortex-M4 microcontroller, running at 48 MHz. Designed for makers and developers seeking more processing power and memory, the Minima retains the classic UNO form factor and is compatible with most R3 shields.
With 256KB Flash and 32KB SRAM, the UNO R4 Minima supports more complex code, higher-speed control applications, and low-level access via native USB. It features 14 digital I/O pins, 6 analog inputs, PWM output, 12-bit DAC, and CAN bus for communication in industrial and automotive environments.
Ideal for robotics, automation, IoT, and edge applications, it provides a minimalist yet powerful platform for modern embedded projects.
Technical Specifications:
Parameter |
Specification |
Microcontroller |
Renesas RA4M1 (Arm Cortex-M4 @ 48MHz) |
Operating Voltage |
5V logic (3.3V-compatible peripherals) |
Input Voltage (VIN) |
6V – 24V DC |
Flash Memory |
256 KB |
SRAM |
32 KB |
Digital I/O Pins |
14 (6 PWM capable) |
Analog Input Pins |
6 |
DAC Output |
1 × 12-bit |
Communication Interfaces |
UART, SPI, I2C, CAN Bus |
USB Interface |
USB-C (native only, no USB-to-serial chip) |
Debugging Interface |
SWD (via 10-pin header) |
Shield Compatibility |
Arduino UNO R3 Form Factor |
Dimensions |
68.6 mm × 53.4 mm |
How to Use:
Getting Started:
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Connect the board using a USB-C cable.
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Install the Arduino IDE and the UNO R4 board package via Boards Manager.
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Select Arduino UNO R4 Minima under Tools → Board.
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Use the native USB port for uploading sketches and serial communication.
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Utilize SWD header for advanced debugging (optional).
Tips:
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No onboard Wi-Fi or Bluetooth (choose UNO R4 WiFi if needed).
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Use with sensors, actuators, or CAN modules for industrial projects.
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Compatible with most existing UNO shields and Arduino libraries.
Applications:
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Robotics and servo/motor control systems
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Real-time sensor monitoring and data logging
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IoT edge devices and automation projects
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CAN-based communication systems
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High-precision analog projects using DAC
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Embedded system prototyping and education
Package Includes: