Arduino UNO R4 WiFi Development Board

Description
The Arduino UNO R4 WiFi from Arduino combines the familiar UNO form factor with enhanced performance and built-in wireless connectivity. This board uses the Renesas RA4M1 32-bit microcontroller and includes an ESP32-S3 module for WiFi and Bluetooth connectivity.
The board maintains compatibility with the UNO R3 shield ecosystem while offering increased memory, higher clock speed, and expanded peripherals. It also includes a 12?8 LED matrix, USB-C connectivity, and improved power options, making it suitable for IoT, automation, robotics, and embedded system development.
Specifications

Specification
Details

Model
Arduino UNO R4 WiFi

Microcontroller
Renesas RA4M1 (Arm Cortex?M4)

WiFi / Bluetooth Module
ESP32?S3?MINI?1?N8 (WiFi & Bluetooth)

Operating Voltage
5 V (RA4M1) / 3.3 V (ESP32?S3)

Input Voltage (VIN)
6?24 V

Digital I/O Pins
14

Analog Input Pins
6

PWM Pins
6

DAC
1 (12?bit)

ADC
6

Communication Interfaces
UART, SPI, I2C, CAN Bus

USB
USB?C Programming Port

Clock Speed
RA4M1: 48 MHz / ESP32?S3: up to 240 MHz

Memory (RA4M1)
256 kB Flash, 32 kB SRAM

Memory (ESP32?S3)
384 kB ROM, 512 kB SRAM

Other Features
Built?in 12?8 LED Matrix, Qwiic Connector, OFF & VRTC Pins

DC Current per I/O Pin
8 mA

Dimensions
68.85 ? 53.34 mm