ArduinoArduino UNO R4 WiFi

About

The Arduino UNO R4 WiFi 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 12x8 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.

Technical Specifications

• Microcontroller: Renesas RA4M1 (Arm® Cortex®-M4)
• USB Port: USB-C® - Programming Port
• Wireless Connectivity: Wi-Fi® & Bluetooth® via ESP32-S3 module
• Form Factor: Maintains the same form factor, pinout, and 5V operating voltage as UNO R3
• Expanded Memory: 256 kB Flash and 32 kB RAM (RA4M1), 384 kB ROM and 512 kB SRAM (ESP32-S3)
• Clock Speed: Main core - 48 MHz, ESP32-S3 - up to 240 MHz
• Onboard Peripherals: 12-bit DAC, CAN BUS, OP AMP, 12x8 LED matrix
• I/O Pins: 14 Digital I/O Pins, 6 Analog Input Pins, 1 DAC, 6 PWM pins
• Communication: 1x UART, 1x I2C, 1x SPI, 1x CAN Bus
• Power Tolerance: Circuit operating voltage - 5 V (ESP32-S3 at 3.3 V), input voltage (VIN) 6-24 V
• Current Per I/O Pin: 8 mA
• Additional Features: Qwiic I2C connector, support for battery-powered RTC, HID support for mouse/keyboard emulation, runtime error diagnostics, VRTC and OFF pins for power management
• Compatibility: Seamless transition for existing shields and projects using UNO R3
• Usage: Ideal for upgrading projects, adding wireless connectivity, and supporting complex or creative designs.
• Warranty: 6 Months

What's in the box?

• 1x Arduino® UNO R4 WiFi