Top view of the Arduino UNO R4 WiFi board with LED matrix, wireless module and pin headers.

Arduino UNO R4 WiFi

$6.98 $12.48
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Top view of the Arduino UNO R4 WiFi board with LED matrix, wireless module and pin headers.
  • Top view of the Arduino UNO R4 WiFi board with LED matrix, wireless module and pin headers.
  • Angled view of Arduino UNO R4 WiFi on a clear base with red LEDs lit on its matrix.
  • Underside of Arduino UNO R4 WiFi showing labeled connections and printed board markings.
  • Arduino UNO R4 WiFi on a clear base beside the front of its retail box.
  • Front and back of Arduino UNO R4 WiFi packaging with a board illustration and specifications.
  • Arduino UNO R4 WiFi inside an open white retail box.
  • Teal Arduino Cloud IoT Compatible graphic with white cloud shapes.
  • Person holding an Arduino UNO R4 WiFi while using an oscilloscope probe at an electronics workbench.
  • Arduino UNO R4 WiFi connected to a probe while a person adjusts an oscilloscope.
  • Arduino UNO R4 WiFi resting in an open palm above a green cutting mat.
  • Top view of the Arduino UNO R4 WiFi board with LED matrix, wireless module and pin headers.
  • Angled view of Arduino UNO R4 WiFi on a clear base with red LEDs lit on its matrix.
  • Underside of Arduino UNO R4 WiFi showing labeled connections and printed board markings.
  • Arduino UNO R4 WiFi on a clear base beside the front of its retail box.
  • Front and back of Arduino UNO R4 WiFi packaging with a board illustration and specifications.
  • Arduino UNO R4 WiFi inside an open white retail box.
  • Teal Arduino Cloud IoT Compatible graphic with white cloud shapes.
  • Person holding an Arduino UNO R4 WiFi while using an oscilloscope probe at an electronics workbench.
  • Arduino UNO R4 WiFi connected to a probe while a person adjusts an oscilloscope.
  • Arduino UNO R4 WiFi resting in an open palm above a green cutting mat.
Arduino UNO R4 WiFi

Arduino UNO R4 WiFi

$6.98 $12.48

The Arduino UNO R4 WiFi is a development board combining a Renesas RA4M1 microcontroller with an Espressif ESP32-S3 for wireless connectivity. It includes a 12x8 LED matrix, a Qwiic connector, and VRTC and OFF pins for connected electronics projects.

With the UNO R4 WiFi, you can easily upgrade your project and add wireless connectivity to expand the reach of your current setup. If this is your first project, the board provides a starting point for connected electronics projects.

 

Let's explore what the UNO R4 WiFi has to offer:

  • Hardware compatibility with UNO form factor: The UNO R4 WiFi maintains the same form factor, pinout, and 5 V operating voltage as its predecessor, the UNO R3. Check each shield’s electrical requirements and software support before moving an existing UNO project to this board.
  • Expanded memory and faster clock: The UNO R4 WiFi boasts increased memory and a faster clock speed, enabling more precise calculations and effortless handling of complex projects.
  • Extra on-board peripherals: The UNO R4 WiFi introduces a range of on-board peripherals, including a 12-bit DAC, CAN BUS, and OP AMP, providing expanded capabilities and design flexibility.
  • Extended 24 V tolerance: The UNO R4 WiFi supports a wider input voltage range, allowing seamless integration with motors, LED strips, and other actuators using a single power source.
  • HID support: With built-in HID support, the UNO R4 WiFi can simulate a mouse or keyboard when connected to a computer via USB, making it easy to send keystrokes and mouse movements.
  • Wi-Fi and Bluetooth: The UNO R4 WiFi hosts an ESP32-S3 module, enabling makers to add wireless connectivity to their projects. Combined with the Arduino IoT Cloud, makers can monitor and control their projects remotely.
  • Qwiic connector: The UNO R4 WiFi features a Qwiic I2C connector, allowing easy connection to nodes from the extensive Qwiic ecosystem. Adapter cables also enable compatibility with sensors and actuators based on other connectors.
  • Support for battery-powered RTC: The UNO R4 WiFi includes additional pins, including an "OFF" pin to turn off the board and a "VRTC" pin to keep the internal Real-Time Clock powered and running.
  • LED matrix: The UNO R4 WiFi incorporates a bright 12x8 red LED matrix, 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 and provides detailed explanations and hints about the code line causing the crash.

With all these features packed into the well-known UNO form factor, now is the perfect time to upgrade your project or embark on your maker journey. The UNO R4 WiFi supports both introductory and more advanced electronics projects.

If you are looking for a lightweight version of the Arduino UNO R4, you can check the Arduino UNO R4 Minima.

What's the difference between UNO R3 and UNO R4 boards? Find it out in this article.

Arduino IoT Cloud Compatible

Connect supported projects to Arduino Cloud for remote monitoring and control. Follow Arduino’s setup and security guidance for your application.

TRY THE ARDUINO IOT CLOUD FOR FREE

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