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Learn More about the Arduino UNO REV 4 Boards
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Learn More about the Arduino UNO REV 4 Boards

Arduino UNO R4 WiFi board combines the Renesas RA4M1 with the Espressif ESP32-S3, giving creators heightened processing capabilities, wireless connectivity and an expanded range of peripherals.

Discover a range of new features packed into the well-known UNO form factor

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  • More memory & faster clock: 16x increase in memory & 3x the clock speed of previous versions
  • Wi-Fi® & BLUETOOTH®: Features both Wi-Fi and Bluetooth Low Energy connectivity to connect to the Internet & create IoT projects
  • Qwiic I2C connector: Facilitates quick prototyping & lets you connect to a wide variety of compatible modules
  • USB-C connector: Simulate a mouse or keyboard and create a cool interface with minimal effort
  • CAN BUS Module: Expand your maker potential & easily tackle advanced projects with added design flexibility built-in
  • New peripherals (DAC, Op Amp): Expand your maker potential & easily tackle advanced projects with added design flexibility built-in
  • I2C connection: Uses two lines to send and receive data and allows for each enabled device to have its own unique address
  • Support for battery-powered RTC: Features additional pins so you can turn off the main MCU & keep the internal RTC powered by an external battery
  • On-board 12x8 LED matrix: Work on animations or plot sensor data without requiring any additional hardware
  • Larger voltage range & electrical robustness: Enhanced thermal design enables boards to be powered up to 24V & RA4M1 MCU features overcurrent protection on the pins

Applications

  • Home automation
  • Robotics
  • IoT
  • Wearable technology
  • Plant communicator
  • Education and learning
  • Security
  • Environmental monitoring

Features

  • Arduino cloud capability: Store data remotely, build interactive dashboards & upload sketches over-the-air
  • Diagnostics for runtime errors: Features a built-in mechanism to detect operations that might cause the board to crash
  • R3 hardware compatible: Compatibility for existing shields and accessories