Product Description (Detailed):
Step into the next generation of Arduino development with the official Arduino Uno WiFi R4 Development Board. This groundbreaking board combines the beloved UNO form factor with significantly enhanced processing power and integrated wireless capabilities, making it the ultimate tool for advanced projects, especially in the realm of the Internet of Things (IoT). At its core lies a powerful 32-bit Renesas RA4M1 microcontroller (Arm Cortex-M4), providing a substantial upgrade in speed (48 MHz), memory (256 KB Flash, 32 KB SRAM), and rich peripherals compared to previous UNO models.
What truly sets the Arduino Uno WiFi R4 apart is its integrated ESP32-S3 Wi-Fi and Bluetooth module. This dedicated co-processor provides robust wireless connectivity, enabling you to effortlessly connect your projects to the internet, communicate with other devices, and integrate with cloud platforms for remote monitoring and control. Imagine building smart home systems, connected sensors, or interactive web-enabled devices with unparalleled ease.
Beyond its core processing and wireless capabilities, this official Arduino R4 WiFi board is packed with features designed to spark innovation. It includes a vibrant onboard 12x8 LED matrix, perfect for displaying custom animations, text, or sensor data directly on the board, eliminating the need for external displays in many cases. You'll also find a convenient USB-C connector for modern power and programming, a Digital-to-Analog Converter (DAC) for true analog output, a CAN bus for robust industrial communication, HID (Human Interface Device) support for simulating keyboards/mice, and a Real-Time Clock (RTC) for precise timekeeping.
Maintaining the classic UNO R3 pinout and 5V operating voltage ensures broad compatibility with existing shields and components, making your transition to this powerful new platform seamless. Whether you're an experienced developer pushing the boundaries of IoT or an ambitious beginner ready to build complex connected projects, the Arduino Uno WiFi R4 Official Development Board is your ideal choice.
The Arduino UNO R4 WiFi combines the simplicity of the classic UNO with advanced features to supercharge your IoT and embedded projects. Powered by a 32-bit RA4M1 Cortex-M4 MCU and an ESP32-S3 coprocessor, it offers blazing-fast performance, onboard Wi-Fi + Bluetooth connectivity, and real-time monitoring capabilities via the Arduino IDE and Arduino Cloud.
Designed with the same form factor as the UNO R3, it maintains full shield compatibility while adding new power: higher clock speed, more RAM, larger flash, CAN bus support, and real-time serial plotting. The onboard Qwiic/I²C connector, DAC, and HID capabilities make it ideal for modern applications in automation, robotics, machine learning, and remote sensing.
Technical Specifications:
Parameter |
Specification |
Microcontroller |
Renesas RA4M1 (Arm Cortex-M4 @ 48MHz) |
Coprocessor (Connectivity) |
ESP32-S3 (Wi-Fi + Bluetooth) |
Flash Memory (RA4M1) |
256 KB |
SRAM (RA4M1) |
32 KB |
Digital I/O Pins |
14 (12 PWM capable) |
Analog Inputs |
6 |
DAC |
1 × 12-bit |
USB Interface |
USB-C (native + HID support) |
Wi-Fi/Bluetooth |
ESP32-S3 onboard radio |
Connectivity Features |
Arduino Cloud, OTA updates, Wi-Fi scan |
Debugging Tools |
Real-time graphs, plotting, live debugging |
Operating Voltage |
5V logic (input 7–12V via VIN or USB-C) |
Dimensions |
Standard UNO size (68.6mm × 53.4mm) |
How to Use:
Getting Started:
-
Connect the board via USB-C cable.
-
Install the latest Arduino IDE and UNO R4 board support package.
-
Use Arduino Cloud for Wi-Fi provisioning, OTA updates, and real-time dashboards.
-
Program the RA4M1 core using standard setup()
and loop()
functions.
-
For Wi-Fi/Bluetooth tasks, communicate with the ESP32-S3 coprocessor.
IoT Usage:
-
Connect to networks via WiFi.begin()
.
-
Send data to cloud APIs or receive MQTT messages.
-
Monitor data in real time using Arduino Cloud dashboards.
Applications:
-
Internet of Things (IoT) devices and dashboards
-
Wireless robotics and home automation
-
Edge computing and smart sensors
-
Educational and industrial prototyping
-
Real-time data logging and visualization
-
Wireless HID/USB control systems
Package Includes: