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Arduino UNO R4 WiFi

Original price 509 kr - Original price 509 kr
Original price
509 kr
509 kr - 509 kr
Current price 509 kr
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Enhance the capabilities of your projects and magnify their potential with the Arduino UNO R4 WiFi, a revolutionary advancement that merges the processing power of the Renesas RA4M1 microcontroller with the wireless connectivity capabilities of the ESP32-S3 by Espressif. This distinctive fusion, combined with onboard features like a 12x8 LED matrix, Qwiic connector, VRTC, and OFF pin, caters comprehensively to the needs of makers for their upcoming endeavours.

Seamless Integration of Wireless Connectivity

Elevate your projects through the seamless incorporation of wireless connectivity using the UNO R4 WiFi. This board effortlessly extends the reach of your existing setup, enabling remote control and monitoring via the Arduino IoT Cloud.

Hardware Compatibility with UNO Form Factor

Preserving the familiar UNO form factor, pinout, and 5 V operating voltage, the UNO R4 WiFi ensures a seamless transition for ongoing projects and shields. This design choice ensures backward compatibility while facilitating easy expansion and improvement.

Enhanced Memory and Accelerated Clock Speed

Experience improved performance with augmented memory and a quicker clock speed. The UNO R4 WiFi adeptly handles intricate calculations and complex projects with precision, opening avenues to more sophisticated designs.

Additional On-board Peripherals

The Arduino UNO R4 WiFi introduces a variety of supplementary on-board peripherals, including a 12-bit DAC, CAN BUS, and OP AMP. These features grant greater flexibility and capabilities, enabling the realization of advanced designs.

Extended Tolerance for 24 V

With support for a wider input voltage range, the UNO R4 WiFi harmoniously integrates with various actuators like motors and LED strips using a single power source. This extended tolerance guarantees compatibility with a diverse spectrum of applications.

HID Support

The built-in HID support transforms the UNO R4 WiFi into a versatile input device. When connected via USB, it can emulate a mouse or keyboard, simplifying interactions and enabling the easy transmission of keystrokes and mouse movements.

Wi-Fi and Bluetooth

Equipped with an ESP32-S3 module, the UNO R4 WiFi facilitates the integration of Wi-Fi and Bluetooth capabilities into your projects. With compatibility with the Arduino IoT Cloud, you can effortlessly oversee and manage your projects remotely.

Qwiic Connector

The Arduino UNO R4 WiFi incorporates a Qwiic I2C connector, streamlining the connection to nodes within the expansive Qwiic ecosystem. Through adapter cables, compatibility extends to sensors and actuators based on various connectors.

Battery-powered RTC Support

Supplementary pins, including an "OFF" pin for board shutdown and a "VRTC" pin for continuous Real-Time Clock operation, enhance power management and timekeeping capabilities.

LED Matrix

The integrated 12x8 red LED matrix obviates the need for external hardware when creating projects involving animations or visualization of sensor data. This luminous and versatile matrix introduces a dynamic visual dimension to your creations.

Runtime Error Diagnostics

The UNO R4 WiFi incorporates an intelligent error-catching mechanism that detects and explains runtime crashes. This feature offers valuable insights into code issues, fostering smoother development.

The Arduino UNO R4 WiFi encapsulates unparalleled versatility within the trusted UNO form factor. Whether you're enhancing ongoing projects or embarking on a fresh maker journey, the UNO R4 WiFi unleashes boundless possibilities for creators of all proficiencies.

Seamlessly utilize it with Arduino's IoT Cloud for secure communication across all interconnected devices. Elevate your projects today with the power of wireless connectivity and innovation.

Some Examples of Possible Applications

  1. Revolutionize Home Automation and Smart Devices: Seamlessly incorporate the UNO R4 WiFi with sensors, actuators, and Wi-Fi/Bluetooth modules to orchestrate intelligent home solutions. Effortlessly control lights, thermostats, door locks, and appliances from a distance.
  2. Empower IoT Data Logging: Harness the capabilities of the UNO R4 WiFi to amass sensor data and transmit it wirelessly to cloud platforms. This enables real-time analysis and monitoring of environmental variables like temperature, humidity, and air quality.
  3. Catalyze Robotics and Automation: Construct remote-controllable robotic systems, leveraging the UNO R4 WiFi's wireless prowess, augmented peripherals, and expanded memory. These features facilitate efficient task execution and enhance precision.
  4. Innovate Wearable Technology: Develop wearable devices integrated with sensors, such as heart rate monitors or accelerometers. These devices can track health metrics and activity data, transmitting insights to smartphones or the cloud.
  5. Optimize Industrial Control Systems: Deploy the UNO R4 WiFi in the design of industrial automation systems. Integrate sensors, motors, and actuators to monitor and manage machinery remotely, optimizing operations and boosting efficiency.
  6. Advance Environmental Monitoring: Establish a network of sensors across remote locations to monitor environmental factors like temperature, humidity, soil moisture, and air pollution levels. This data serves vital roles in research and conservation efforts.
  7. Foster Interactive Art and Displays: Employ the UNO R4 WiFi's built-in LED matrix and other peripherals to create dynamic art installations that respond to user input or environmental cues, fostering engaging experiences.
  8. Educational Empowerment: Utilize the UNO R4 WiFi as an educational tool to impart programming, electronics, and IoT concepts. This approach nurtures hands-on learning among students and beginners.
  9. Reimagine Agricultural Automation: Innovate in smart agriculture systems that monitor soil conditions, automate irrigation, and optimize greenhouse environments. This yields higher crop yields and efficient resource utilization.
  10. Enable Remote Sensing and Surveillance: Fabricate remote surveillance systems incorporating cameras, motion sensors, and wireless connectivity. Real-time monitoring and alerts for unusual activity bolster security measures.
  11. Shape Healthcare Solutions: Design medical devices such as remote patient monitoring systems. These devices collect and transmit vital signs to healthcare professionals, enhancing remote diagnosis and patient care.
  12. Efficient Energy Management: Leverage the UNO R4 WiFi to construct energy management systems controlling and tracking power consumption. This technology assists homeowners and businesses in optimizing energy usage.
  13. Engineer Vehicle Telematics: Develop vehicle tracking and diagnostics systems utilizing the UNO R4 WiFi. This enables the collection and remote transmission of vehicle data for monitoring and maintenance.
  14. Customize Security Systems: Craft personalized security systems integrating sensors, alarms, and cameras for enhanced protection of residences, offices, and industrial facilities.
  15. Forge Outdoor Adventure Gadgets: Devise portable gadgets for outdoor enthusiasts incorporating GPS, weather sensors, and wireless communication. These gadgets provide real-time navigation, weather updates, and safety alerts.


  • Microcontroller: RA4M1 Renesas ARM Cortext-M4
  • Clock Speed: Up to 240MHz (ESP32-S3) | 48MHz (Main Core)
  • Memory: 384 kB ROM and 512 kB SRAM (ESP32-S3) | 256 kB Flash and 32 kB RAM (RA4M1)
  • Digital I/O Pins: 14
  • Analog Input Pins: 6 PWM Pins: 6
  • Communication Pins: UART x1, SPI x1, I2C x1, CAN Bus x1
  • DAC: 1
  • Programming Port: USB-C
  • Circuit Operating Voltage: 5V | 3.3V for ESP32-S3
  • Input Voltage (VIN): 6V ~ 24V
  • DC Current: 8mA per I/O Pin
  • Dimensions: 68.85mm x 53.34mm

Items Included

  • Arduino UNO R4 WiFi

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