Arduino Uno R4 Wi-Fi with Renesas RA4M1 and Espressif ESP32-S3

Thanks to its wide range of new peripherals and Wi-Fi® and Bluetooth® connectivity, Arduino UNO R4 Wi-Fi offers an unlimited creation experience.

Arduino UNO R4 Wi-Fi is fully compatible with R3 shields and accessories, requiring no modifications. Furthermore, it operates at a standard 5-volt voltage, simplifying its use.

Arduino UNO R4 Wi-Fi also features a practical 12×8 LED matrix, a QWIIC connector, VRTC pins for backup battery, and an OFF pin.

Arduino UNO R4 Wi-Fi will fully meet the needs of enthusiasts for their projects, offering a dynamic combination of features that will transform ideas into reality, taking projects to extraordinary levels.

• Hardware compatibility with UNO format: Arduino UNO R4 Wi-Fi maintains the same form factor, pinout, and 5V operating voltage as its predecessor, Arduino UNO R3, ensuring full compatibility with existing boards and projects without any issues.
• Expanded memory and faster clock: Arduino UNO R4 Wi-Fi features increased memory and a higher clock speed, allowing for faster calculations and smooth handling of even complex projects.
• Additional integrated peripherals: Arduino UNO R4 Wi-Fi introduces a range of integrated peripherals, including a 12-bit DAC, CAN BUS, and an OP AMP, offering extended design capabilities and flexibility.
• Extended power up to 24 V: Arduino UNO R4 Wi-Fi supports a wider range of input voltages, allowing for seamless integration with motors, LED strips, and other actuators using a single power source.
• HID support: With integrated HID support, Arduino UNO R4 Wi-Fi can simulate a mouse or keyboard when connected to a computer via USB, simplifying the sending of keystrokes and mouse movements.
• Wi-Fi® and Bluetooth®: Arduino UNO R4 Wi-Fi hosts an ESP32-S3 module, allowing you to add wireless connectivity to your projects. Additionally, in conjunction with Arduino IoT Cloud, you can monitor and control your projects remotely.
• QWIIC connector: Arduino UNO R4 Wi-Fi features a Qwiic I2C connector, allowing for easy connection to nodes within the extensive QWIIC ecosystem. Adapter cables also allow compatibility with sensors and actuators based on other connectors.
• Support for battery-powered RTC: Arduino UNO R4 Wi-Fi 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: Arduino UNO R4 Wi-Fi incorporates a bright 12×8 red LED matrix, ideal for creative projects with animations or sensor data tracking, eliminating the need for additional hardware.
• Runtime error diagnostics: Arduino UNO R4 Wi-Fi includes an error detection mechanism that identifies runtime crashes and provides detailed explanations and suggestions on the line of code that caused the crash.

• Microcontroller: Renesas RA4M1 (Arm® Cortex®-M4 with Floating Point Unit)
  
• Operating voltage: 5V
• Input voltage: 6-24V
• Memory: 256 kB Flash, 32 kB RAM
• Wi-Fi/BLE: ESP32-S3-MINI
• LED Matrix: 12×8 (96 red LEDs)
• Additional connections: Qwiic connector, OFF pin, VRTC pin
• DC current per I/O pin: 8mA
• Clock speed: 48 MHz
• Programming port: USB-C
• Digital pins: 14
• PWM: 6
• ADC: 6
• DAC: 1 (12 bit)
• SPI: 1
• I2C: 1
• CAN: 1
• UART: 1
• Dimensions:
  – width: 68.85 mm
  – length: 53.34 mm