Arduino UNO R4 WiFi

AED 139.00



The Arduino UNO R4 WiFi combines the power of the Renesas RA4M1 microcontroller with the wireless capabilities of the ESP32-S3 from Espressif. Packed with exciting new peripherals, including a 12x8 LED matrix, Qwiic connector, VRTC, and OFF pin, this board is a versatile choice for makers of all levels. Whether you're adding wireless connectivity to an existing project or starting a new one, the UNO R4 WiFi has everything you need to spark your creativity.



  • Hardware Compatibility with UNO Form Factor: Just like its predecessor, the UNO R4 WiFi maintains the UNO form factor, pinout, and 5 V operating voltage. This ensures a seamless transition for existing shields and projects.
  • Expanded Memory and Faster Clock: The UNO R4 WiFi boasts increased memory and a faster clock speed, allowing for precise calculations and effortless handling of complex projects.
  • Extra On-Board Peripherals: It introduces a range of on-board peripherals, including a 12-bit DAC, CAN BUS, and OP AMP, offering expanded capabilities and design flexibility.
  • Extended 24 V Tolerance: With support for a wider input voltage range, the UNO R4 WiFi seamlessly integrates with motors, LED strips, and other actuators using a single power source.
  • HID Support: Featuring built-in HID support, the UNO R4 WiFi can simulate a mouse or keyboard when connected to a computer via USB-C, making it easy to send keystrokes and mouse movements.
  • Wi-Fi® and Bluetooth®: Equipped with an ESP32-S3 module, this board enables makers to add wireless connectivity to their projects. With the Arduino IoT Cloud, you can monitor and control your projects remotely.
  • Qwiic Connector: The UNO R4 WiFi includes a Qwiic I2C connector, simplifying connections to nodes from the extensive Qwiic ecosystem. Adapter cables also ensure compatibility with sensors and actuators based on other connectors.
  • Support for Battery-Powered RTC: Additional pins, including an "OFF" pin to turn off the board and a "VRTC" pin to keep the internal Real-Time Clock powered, provide enhanced functionality.
  • LED Matrix: Featuring a bright 12x8 red LED matrix, this board is ideal for creative projects with animations or plotting sensor data, eliminating the need for additional hardware.
  • Diagnostics for Runtime Errors: The UNO R4 WiFi includes an error-catching mechanism that detects runtime crashes, providing detailed explanations and hints about the code line causing the crash.



  • Board Name: Arduino® UNO R4 WiFi
  • SKU: ABX00087
  • Microcontroller: Renesas RA4M1 (Arm® Cortex®-M4)
  • USB: USB-C® Programming Port
  • Digital I/O Pins: 14
  • 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 (ESP32-S3 is 3.3 V)
    • Input Voltage (VIN): 6-24 V
    • DC Current per I/O Pin: 8 mA
  • Clock Speed:
    • Main Core: 48 MHz
    • ESP32-S3: Up to 240 MHz
  • Memory:
    • RA4M1: 256 kB Flash, 32 kB RAM
    • ESP32-S3: 384 kB ROM, 512 kB SRAM
  • Dimensions:
    • Width: 68.85 mm
    • Length: 53.34 mm




Package Includes:

  • 1 x Arduino UNO R4 WiFi + Package