Description
Reviews
| Brand | - |
| Category | Electronic Components / Maker DIY / Development Boards & Control Boards |
| Origin | - |
| Microcontroller | Renesas RA4M1 (ARM Cortex-M4) |
| Operating Voltage | 5V |
| Digital I/O Pins | 14 |
| Analog Input Pins | 6 |
| Flash Memory | 256 KB |
| SRAM | 32 KB |
| Clock Speed | 48 MHz |
| Connectivity | USB-C, ESP32-S3 (Wi-Fi Edition) |
| USB Interface | UART / CDC |
| Dimensions | 68.58 x 53.34 mm |
Anonymous
Apr 15, 2026
Rating: 5/5
Authentic Arduino Quality
Genuine product. Packaging was secure. Works exactly as expected for my robotics class.
Anonymous
Mar 29, 2026
Rating: 5/5
Perfect for IoT projects
Love the built-in Wi-Fi. Saves space on my breadboard compared to using an external module.
Anonymous
Mar 10, 2026
Rating: 5/5
Great upgrade from R3
The R4 is significantly faster. Wi-Fi connection was easy to set up using the Arduino Cloud.
Anonymous
Feb 26, 2026
Rating: 4/5
Good board, minor IDE issues
Hardware is solid. Had some trouble with initial driver install on Windows but support helped.
Anonymous
Feb 25, 2026
Rating: 5/5
Excellent for beginners and pros
The extra memory makes a huge difference for complex sketches. Highly recommended.
Q: Is this compatible with Arduino IDE 2.0?
A: Yes, the UNO R4 is fully supported in Arduino IDE 2.0 and later versions.
Q: Is the USB cable included?
A: Yes, a USB-C cable is included in the box for programming and power.
Q: What power supply do you recommend?
A: We recommend 7-12V via the barrel jack or 5V via the USB-C port.
Q: Can I use 3.3V sensors directly?
A: Some pins are 3.3V tolerant. Please refer to the official pinout diagram for specific pins.
Q: Does the Minima version have Wi-Fi?
A: No, the Minima version does not include Wi-Fi. Please select the Wi-Fi Edition for connectivity.
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