Arduino® Uno R4 WiFi

Discover the power of wireless connectivity and expanded capabilities with the Arduino UNO R4 WiFi development board. This board combines the processing power of the Renesas RA4M1 microcontroller with the wireless connectivity of Espressif's ESP32-S3 module. Whether you are an experienced maker or just starting your first project, the UNO R4 WiFi offers everything you need to ignite your creativity.

While retaining the familiar UNO form factor and 5V supply voltage, the UNO R4 WiFi development board ensures a seamless transition for existing shields and projects. Thanks to its expanded memory capacity and faster clock speed, this new version is capable of performing more accurate calculations and driving complex projects effortlessly.

What really sets this development board apart are the additional on-board features. With a 12-bit DAC, CAN BUS, and OP AMP, the UNO R4 WiFi development board offers extensive possibilities and flexibility when designing your projects. In addition, the UNO R4 WiFi supports a wider input voltage range of 6V to 24V, enabling seamless integration with motors, LED strips, and other actuators using just one power source.

Thanks to the built-in HID support, the UNO R4 WiFi development board can simulate a mouse or keyboard when connected to a computer via USB. This allows you to easily send keystrokes and mouse movements from your project.

With the ESP32-S3 module on board, the UNO R4 WiFi development board offers Wi-Fi and Bluetooth connectivity. You can add wireless functionality to your projects and monitor and control them remotely using the Arduino IoT Cloud.

The Qwiic connector on the UNO R4 WiFi development board makes it easy to connect to devices from the extensive Qwiic ecosystem via I2C. With adapter cables, it is also possible to use sensors and actuators with other connectors.

Thanks to support for battery-powered RTC (Real-Time Clock), the UNO R4 WiFi development board can keep the internal clock running even when the power is turned off. This preserves timekeeping so you are always on time.

The bright 12x8 LED matrix on the UNO R4 WiFi development board makes it possible to create creative projects with animations or sensor data display without needing any extra hardware.

With the integrated debugging mechanism on the UNO R4 WiFi development board, you can detect runtime errors and get detailed explanations and hints about the code that caused the crash. This makes it easier to find and solve problems in your project.

With the Arduino UNO R4 WiFi development board, now is the perfect time to upgrade your project or start your maker adventure. This board offers unmatched versatility and possibilities for makers of all levels.

Technical specifications:

• Board: Arduino® UNO R4 WiFi
• SKU: ABX00087
• Microcontroller: Renesas RA4M1 (Arm® Cortex®-M4)
• USB: USB-C® Programming Port
• Digital I/O pins: 14
• Analog input pins: 6
• DAC: 1
• PWM pins: 6
• Communication: UART (1x), I2C (1x), SPI (1x), CAN (1x CAN Bus)
• Circuit operating voltage: 5 V (ESP32-S3 operates at 3.3 V)
• Input voltage (VIN): 6-24 V
• 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
• Dimensions: Width - 68.85 mm, Length - 53.34 mm

Upgrade your project or start your maker adventure today with the Arduino UNO R4 WiFi development board. The possibilities are endless!

What is the difference between the Arduino R3 and the Arduino R4 WiFi?

The main difference between the Arduino UNO R4 WiFi and the Arduino UNO R3 is the addition of wireless connectivity and extra features on the UNO R4 WiFi.

The UNO R4 WiFi includes an ESP32-S3 module, giving it wireless connectivity options such as Wi-Fi and Bluetooth. This allows makers to connect their projects wirelessly to other devices and to monitor and control them remotely using the Arduino IoT Cloud.

In addition, the UNO R4 WiFi has extra on-board features such as a 12-bit DAC, CAN BUS, and OP AMP, which expand its capabilities and design flexibility. Moreover, the UNO R4 WiFi supports a wider input voltage range of 6V to 24V, making it easier to integrate motors, LED strips, and other actuators with a single power source.

In terms of form factor and pinout, the UNO R4 WiFi retains the same form factor and 5V supply voltage as the UNO R3, allowing a seamless transition for existing shields and projects.

In short, the Arduino UNO R4 WiFi offers wireless connectivity, extra features, and improved capabilities compared to the Arduino UNO R3.