Arduino® UNO R4 WiFi

The Arduino UNO R4 WiFi combines the processing power and new advanced peripherals of the Renesas RA4M1 microcontroller with the powerful wireless connectivity of Espressif's ESP32-S3 (Wi-Fi & Bluetooth). It also features a built-in 12×8 LED matrix, a Qwiic connector and VRTC and OFF pins, covering every possible need for your next project.

Key Features & Upgrades
Form Factor Compatibility (UNO): Keeps the same dimensions, pinout and 5 V operating voltage as the UNO R3, ensuring a smooth transition for existing shields.

Wi-Fi® & Bluetooth® Wireless Connectivity: Thanks to the ESP32-S3 subsystem, it allows remote control and monitoring via the Arduino IoT Cloud.

Built-in 12×8 LED Matrix: Ideal for creative projects with animations or graphical display of sensor data, without the need for additional hardware.

Qwiic I2C Connector: Allows easy and quick connection to a huge range of sensors and peripherals from the Qwiic ecosystem.

Advanced Peripherals & HID Support: Features a 12-bit DAC, CAN Bus, OP AMP and the ability to emulate a keyboard/mouse (USB HID).

Supply Range up to 24 V & RTC Management: Supports a wider input voltage for motors and LED strips, as well as VRTC (for keeping the real-time clock running) and OFF pins.

Runtime Error Diagnostics: A built-in error-detection mechanism that detects crashes and points to the line of code that caused the problem.