Upgrade from 8-bit to a powerful 32-bit microcontroller for faster, more efficient projects.
With 256 kB flash and 32 kB SRAM, you'll have more storage and faster processing for complex tasks.
The ESP32-S3 module offers seamless connectivity, ideal for IoT applications and wireless communication.
48 MHz clock speed delivers 3x faster performance, ensuring your projects run smoothly and quickly.
Onboard 12x8 LED matrix for creative displays, animations, and visual feedback in your projects.
Dedicated pins for I2C, SPI, and UART make integration with other devices simple and efficient.
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Introducing the latest addition to the Arduino lineup, the Arduino UNO R4 WiFi board, which represents a significant leap forward in functionality and capabilities. Building upon the rich heritage of the UNO series, this advanced version incorporates cutting-edge features to empower your projects with remarkable efficiency.
The key highlight of the UNO R4 WiFi lies in the seamless integration of the ESP32-S3 Wi-Fi module (ESP32-S3-MINI-1-N8), bestowing the UNO with built-in Bluetooth and Wi-Fi functionalities. This integration ensures a comprehensive connectivity solution for enhanced versatility and convenience.
As a member of the first UNO series of 32-bit development boards with WiFi, the UNO R4 WiFi microcontroller marks a departure from its predecessors, which relied on 8-bit AVR microcontrollers. Leveraging a robust 48 MHz Arm Cortex-M4 microprocessor, this board leverages the prowess of the Renesas RA4M1 series microcontroller (R7FA4M1AB3CFM#AA0).
Its expanded memory capabilities are truly impressive, featuring 256 kB flash, 32 kB SRAM, and 8 kB of EEPROM. To facilitate seamless and efficient communication between the RA4M1 and ESP32-S3 modules, a reliable logic level translator (TXB0108DQSR) is employed, ensuring optimal performance at all times.
Upgrade to the Arduino UNO R4 WiFi microcontroller board today and unlock an unparalleled level of innovation within the realm of Arduino, ushering in a new era of limitless possibilities for your projects.
Also, read our blog on the Best Arduino Board explaining the different types of Arduino boards.
Features
The UNO R4 is now a 32-bit microcontroller board, previously based on 8-bit AVR.
The Arduino R4 board features 14 digital I/O ports and 6 analog channels.
Dedicated pins for I2C, SPI, and UART connections.
Significantly larger memory: 8 times more flash memory (256 kB) and 16 times more SRAM (32 kB).
Fastest 48 MHz clock speed, 3x faster than its predecessors.
Onboard ESP32-S3 module for Wi-Fi and Bluetooth connectivity.
Onboard 12x8 LED matrix, making it one of the most visually unique best Arduino boards to date. The LED matrix is fully programmable, allowing you to load anything from still frames to custom animations.
48 MHz Arm Cortex-M4 microprocessor with a floating point unit (FPU) 5 V operating voltage Real-time Clock (RTC) Memory Protection Unit (MPU) Digital-to-analog Converter (DAC)
Wi-Fi support with 802.11 b/g/n standard (Wi-Fi® 4) Bit rate at up to 150 Mbps 2.4 GHz band
Bluetooth
Bluetooth 5
Shipment Weight
0.03 kg
Shipment Dimensions
10 × 8 × 4 cm
Specifications:
48 MHz Arm Cortex-M4 microprocessor with a floating point unit (FPU) 5 V operating voltage Real-time Clock (RTC) Memory Protection Unit (MPU) Digital-to-analog Converter (DAC)
1. How to connect the Arduino UNO R4 WiFi to a wireless network?
To connect your Arduino UNO R4 WiFi, you will use the built-in WiFi library within the Arduino IDE. Simply open an example sketch, enter your network's SSID and password, and upload it to the board. Once the sketch is running, your WiFi board will automatically connect to your wireless network.
2. How to program the Arduino UNO R4 WiFi board?
To program your Arduino R4, connect it to your computer using a USB-C cable and open the Arduino IDE. In the Tools menu, be sure to select the correct Board and Port for your device. The integrated Arduino UNO WiFi module makes this board perfect for advanced projects that combine sensors with online connectivity.
3. How to use the WiFi features of the Arduino UNO R4 WiFi for IoT projects?
The Arduino UNO R4 WiFi features a powerful ESP32-S3 WiFi module that allows it to connect directly to the Internet. This makes it incredibly easy to build IoT projects that send data to cloud platforms or create custom smart home devices. The seamless integration of WiFi simplifies the development of connected applications.
4. How to power the Arduino UNO R4 WiFi board properly?
You can power your Arduino UNO R4 conveniently via its USB cable or by using an external power supply (7-24V) connected to the VIN pin. The board’s robust onboard voltage regulator ensures stable power, which is essential when the WiFi module is actively transmitting data.
5. How to update the firmware on the Arduino UNO R4 WiFi module?
You can update the firmware for the Arduino UNO WiFi module directly through the Arduino IDE or by using the standalone Arduino Firmware Uploader tool. Keeping the firmware updated is important for improving system stability, boosting network performance, and accessing the latest WiFi features on your Arduino R4.
6. How to troubleshoot WiFi connection issues on the Arduino UNO R4 WiFi?
If your board is having trouble connecting, first double-check that the SSID and password are correct in your sketch. Also, confirm that your WiFi network is broadcasting on the 2.4GHz frequency, as the board does not support 5GHz. Running the WiFiScan example sketch is a great way to verify that your Arduino UNO R4 WiFi can see the network.
This product comes with a 1-year manufacturer warranty from the date of purchase, covering manufacturing defects only.
Warranty Void If:
The product shows signs of physical damage, mishandling, exposure to water/moisture, fire, natural calamities, unauthorized repairs, improper storage near heat or direct sunlight, or alteration in any way.
The Arduino UNO R4 WIFI is of excellent quality. The board is robust, and the WiFi functionality works flawlessly. It integrates well with my projects and meets all expectations.
A
Ambujaksh
Packaging Securely Done
Packaging was secure and cushioned the board well. The product arrived safely and in perfect condition without any damage.
J
Jyoti
Positive Customer Experience
I am very satisfied with my purchase. The product arrived on time, was well-packaged, and met all my expectations perfectly.
N
Nilesh
Excellent Packaging Quality
The Original Arduino UNO R4 WIFI arrived securely packaged with anti-static foam and a sturdy box. The board was well protected, and no damage occurred during shipping. Delivery was prompt and hassle-free.
S
Sugavana
Technical Support Efficient
Technical support provided clear guidance on setup and troubleshooting. Their help was instrumental in getting the board working correctly without any issues.