Arduino R4 WiFi – Compatible The Arduino UNO R4 WiFi Compatible combines the processing power and exciting new peripherals of the RA4M1 microcontroller from Renesas with the wireless connectivity power of the ESP32-S3 from Espressif. On top of this, the UNO R4 WiFi offers an on-board 12×8 LED matrix, Qwiic connector, VRTC, and OFF pin, covering all potential needs makers will have for their next project. 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, this board has everything you need to spark your creativity. Features Hardware compatibility with UNO form factor, 5 V operating voltage, as the UNO R3. Compatible with existing shields and projects The UNO R4 introduces a range of on-board peripherals, including a 12-bit DAC, CAN BUS, and OP AMP The UNO R4 supports a wider input voltage range, allowing power supplies up to 24 V SWD connector, Simply connect an external debugger and effortlessly monitor the inner workings of your code and hardware HID support: The UNO R4 Minima comes with built-in HID (Human Interface Device) support, enabling it to simulate a mouse or keyboard Wi-Fi and Bluetooth: The UNO R4 WiFi hosts an ESP32-S3 module Additional Pins: “OFF” pin to turn off the board RTC: Support for battery-powered RTC the “VRTC” pin to keep the internal Real-Time Clock powered and running. RTC: Qwiic I2C connector, allowing easy connection to nodes from the extensive Qwiic ecosystem. LED matrix: Bright 12×8 red LED matrix Quick Spec Board: Arduino® UNO R4 Compatible Input voltage (VIN): 6-16 V Logic: 5V Microcontroller: Renesas RA4M1 (Arm® Cortex®-M4) Memory: 256 kB Flash, 32 kB RAM Clock speed: 48 MHz Port: USB USB-C (Programming Port) Pins: 14 x Digital I/O Pins 6 x Analog input pins 1 x DAC 6 x PWM pins 1 x I2C 1 x SPI 1 x CAN
