Arduino
UNO R4 WiFi (ABX00087)
Introduction
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.
Highlights
Let's explore what the UNO R4 WiFi has to offer
Hardware compatibility with UNO form factor
The UNO R4 WiFi maintains the same form factor, pinout, and 5V operating voltage as its predecessor, the UNO R3, ensuring a seamless transition for existing shields and projects.
Expanded memory and faster clock
The UNO R4 WiFi boasts increased memory and a faster clock speed, enabling more precise calculations and effortless handling of complex projects.
Extra on-board peripherals
The UNO R4 WiFi introduces a range of on-board peripherals, including a 12-bit DAC, CAN BUS, and OP AMP, providing expanded capabilities and design flexibility.
Extended 24V tolerance
The UNO R4 WiFi supports a wider input voltage range, allowing seamless integration with motors, LED strips, and other actuators using a single power source.
HID support
With built-in HID support, the UNO R4 WiFi can simulate a mouse or keyboard when connected to a computer via USB, making it easy to send keystrokes and mouse movements.
Wi-Fi® and Bluetooth®
The UNO R4 WiFi hosts an ESP32-S3 module, enabling makers to add wireless connectivity to their projects.
Combined with the Arduino IoT Cloud, makers can monitor and control their projects remotely.
Qwiic connector
The UNO R4 WiFi features a Qwiic I2C connector, allowing easy connection to nodes from the extensive Qwiic ecosystem.
Adapter cables also enable compatibility with sensors and actuators based on other connectors.
Support for battery-powered RTC
The UNO R4 WiFi 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
The UNO R4 WiFi incorporates a bright 12 x 8 red LED matrix, ideal for creative projects with animations or plotting sensor data, eliminating the need for additional hardware.
Diagnostics for runtime errors
The UNO R4 WiFi includes an error-catching mechanism that detects runtime crashes and provides detailed explanations and hints about the code line causing the crash.
Technical Specifications
Dimensions (Width x Length): 68.85 x 53.34 mm
Weight: 0.048 kg
Microcontroller: Renesas RA4M1 (Arm® Cortex®-M4)
USB: USB-C® Programming Port
Pins
Digital I/O Pins x 14
Analog Input Pins x 6
DAC x 1
PWM Pins x 6
Communication
UART: Yes, 1x
I2C: Yes, 1x
SPI: Yes, 1x
CAN: Yes, 1 CAN Bus
Power
Circuit Operating Voltage: 5V (ESP32-S3 is 3.3V)
Input Voltage (VIN): 6 - 24V
DC Current per I/O Pin: 8 mA
Clock Speed
Main Core: 48 MHz
ESP32-S3: up to 240 MHz
Memory
RA4M1: 256 kB Flash, 32 kB RAM
ESP32-S3: 384 kB ROM, 512 kB SRAM
Video
