Arduino R4 WiFi
The Arduino UNO R4 WiFi merges the RA4M1 microprocessor from Renesas with the ESP32-S3 from Espressif, creating an all-in-one tool for makers with enhanced processing power and a diverse array of new peripherals. With its built-in Wi-Fi® and Bluetooth® capabilities, the UNO R4 WiFi enables makers to venture into boundless creative possibilities. Furthermore, this versatile board boasts a convenient on-board 12x8 LED matrix and a Qwiic connector, offering ample space for innovation and unleashing creativity. This dynamic combination empowers makers to transform their ideas into reality and elevate their projects to unprecedented heights.
Overview
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.
Features
Hardware compatibility with UNO form factor, 5 V operating voltage, as the UNO R3. Compatible with existing shields and projects
The UNO R4 Minima introduces a range of on-board peripherals, including a 12-bit DAC, CAN BUS, and OP AMP
The UNO R4 Minima now 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 12x8 red LED matrix
Quick Spec
Board: Arduino® UNO R4 Minima
Input voltage (VIN): 6-24 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
