UNO R4 WiFi Compatible Board – USB Type-C
Original price was: 1,100.00 EGP.1,098.90 EGPCurrent price is: 1,098.90 EGP.
The UNO R4 WiFi Compatible Board combines a 48MHz Renesas RA4M1 32-bit microcontroller with an ESP32-S3 wireless module. It features Wi-Fi, Bluetooth LE, USB Type-C, a programmable 12×8 LED matrix, 5V logic, CAN support, DAC output, and the familiar UNO form factor. This is a compatible China version, not an original Arduino-manufactured board.
UNO R4 WiFi Compatible Board – China Version
The UNO R4 WiFi Board is an Arduino-compatible development platform based on the modern Renesas RA4M1 32-bit microcontroller. It combines the familiar UNO layout with increased processing power, larger memory, wireless connectivity, and several advanced peripherals.
This product is the compatible China-manufactured version. It is not an original Arduino-manufactured board. However, it follows the standard UNO R4 WiFi architecture and can be programmed using the Arduino IDE with the appropriate UNO R4 board package.
Renesas RA4M1 32-Bit Microcontroller
The main controller is the Renesas RA4M1, which uses a 48MHz Arm Cortex-M4 core with a floating-point unit. Compared with the 8-bit controller used by the classic UNO R3, this processor provides more speed and memory for advanced embedded applications.
The main controller offers 256KB of Flash memory, 32KB of SRAM, and 8KB of data memory. In addition, it includes a real-time clock, a 14-bit ADC, an operational amplifier, capacitive-touch support, and a 12-bit DAC output on pin A0.
Built-In Wi-Fi and Bluetooth
An onboard ESP32-S3 module provides 2.4GHz Wi-Fi and Bluetooth Low Energy connectivity. Therefore, the board can be used in IoT systems, wireless monitoring devices, smart-home projects, connected sensors, and remote-control applications.
The ESP32-S3 works as the wireless communication module and also helps manage the USB connection between the computer and the RA4M1 controller.
Programmable 12×8 LED Matrix
The UNO R4 WiFi Board includes a built-in 12×8 red LED matrix. Users can display symbols, sensor values, simple animations, scrolling text, or small graphical patterns without connecting a separate display.
Furthermore, the onboard matrix makes the board useful for educational experiments and interactive projects directly after connecting the USB cable.
USB Type-C and Multiple Interfaces
The USB Type-C connector is used for programming, serial communication, and 5V power. The board also supports UART, SPI, I2C, CAN bus, and a Qwiic-compatible I2C connector.
An external CAN transceiver is required before connecting the CAN pins to a physical CAN network.
Key Features
- Renesas RA4M1 32-bit main microcontroller
- 48MHz Arm Cortex-M4 processor with FPU
- ESP32-S3 wireless communication module
- 2.4GHz Wi-Fi connectivity
- Bluetooth Low Energy support
- USB Type-C programming and power port
- Programmable 12×8 red LED matrix
- 256KB Flash memory
- 32KB SRAM
- 8KB data memory
- 14 digital input/output pins
- 6 analog input pins
- 12-bit DAC output on A0
- Real-time clock and operational amplifier
- UART, SPI, I2C, Qwiic and CAN interfaces
- Standard UNO board shape and shield layout
- 5V operating logic for the RA4M1 pins
Applications
The board is suitable for IoT monitoring, wireless sensors, home automation, robotics, data acquisition, educational projects, LED displays, control systems, and rapid prototyping.
Because the RA4M1 uses a different architecture from the ATmega328P, some older UNO R3 libraries may require an updated version. Therefore, users should confirm software and shield compatibility before using legacy projects.
Important Product Notice
This is a compatible China version of the UNO R4 WiFi design. It is not manufactured by Arduino and does not include an official Arduino authenticity guarantee or official product packaging.
A USB Type-C data cable is required for programming and is not included unless specifically stated in the package.
UNO R4 WiFi Compatible Board – China Version
The UNO R4 WiFi Board is an Arduino-compatible development platform based on the modern Renesas RA4M1 32-bit microcontroller. It combines the familiar UNO layout with increased processing power, larger memory, wireless connectivity, and several advanced peripherals.
This product is the compatible China-manufactured version. It is not an original Arduino-manufactured board. However, it follows the standard UNO R4 WiFi architecture and can be programmed using the Arduino IDE with the appropriate UNO R4 board package.
Renesas RA4M1 32-Bit Microcontroller
The main controller is the Renesas RA4M1, which uses a 48MHz Arm Cortex-M4 core with a floating-point unit. Compared with the 8-bit controller used by the classic UNO R3, this processor provides more speed and memory for advanced embedded applications.
The main controller offers 256KB of Flash memory, 32KB of SRAM, and 8KB of data memory. In addition, it includes a real-time clock, a 14-bit ADC, an operational amplifier, capacitive-touch support, and a 12-bit DAC output on pin A0.
Built-In Wi-Fi and Bluetooth
An onboard ESP32-S3 module provides 2.4GHz Wi-Fi and Bluetooth Low Energy connectivity. Therefore, the board can be used in IoT systems, wireless monitoring devices, smart-home projects, connected sensors, and remote-control applications.
The ESP32-S3 works as the wireless communication module and also helps manage the USB connection between the computer and the RA4M1 controller.
Programmable 12×8 LED Matrix
The UNO R4 WiFi Board includes a built-in 12×8 red LED matrix. Users can display symbols, sensor values, simple animations, scrolling text, or small graphical patterns without connecting a separate display.
Furthermore, the onboard matrix makes the board useful for educational experiments and interactive projects directly after connecting the USB cable.
USB Type-C and Multiple Interfaces
The USB Type-C connector is used for programming, serial communication, and 5V power. The board also supports UART, SPI, I2C, CAN bus, and a Qwiic-compatible I2C connector.
An external CAN transceiver is required before connecting the CAN pins to a physical CAN network.
Key Features
- Renesas RA4M1 32-bit main microcontroller
- 48MHz Arm Cortex-M4 processor with FPU
- ESP32-S3 wireless communication module
- 2.4GHz Wi-Fi connectivity
- Bluetooth Low Energy support
- USB Type-C programming and power port
- Programmable 12×8 red LED matrix
- 256KB Flash memory
- 32KB SRAM
- 8KB data memory
- 14 digital input/output pins
- 6 analog input pins
- 12-bit DAC output on A0
- Real-time clock and operational amplifier
- UART, SPI, I2C, Qwiic and CAN interfaces
- Standard UNO board shape and shield layout
- 5V operating logic for the RA4M1 pins
Applications
The board is suitable for IoT monitoring, wireless sensors, home automation, robotics, data acquisition, educational projects, LED displays, control systems, and rapid prototyping.
Because the RA4M1 uses a different architecture from the ATmega328P, some older UNO R3 libraries may require an updated version. Therefore, users should confirm software and shield compatibility before using legacy projects.
Important Product Notice
This is a compatible China version of the UNO R4 WiFi design. It is not manufactured by Arduino and does not include an official Arduino authenticity guarantee or official product packaging.
A USB Type-C data cable is required for programming and is not included unless specifically stated in the package.
Technical Specifications
| Specification | Details |
|---|---|
| Board Type | UNO R4 WiFi Compatible |
| Version | China Version |
| Main MCU | Renesas RA4M1 |
| Processor Core | 32-bit Arm Cortex-M4 with FPU |
| Clock Speed | 48MHz |
| Wireless Module | ESP32-S3 |
| Wi-Fi | 2.4GHz 802.11 b/g/n |
| Bluetooth | Bluetooth 5 Low Energy |
| Flash Memory | 256KB |
| SRAM | 32KB |
| Data Memory | 8KB |
| Operating Logic | 5V for RA4M1 I/O |
| USB Connector | USB Type-C |
| USB Input | 5V |
| VIN/DC Jack | 6–24V DC |
| Digital I/O | 14 |
| Analog Inputs | 6 |
| DAC | 1 × 12-bit output on A0 |
| LED Matrix | 12 × 8 red LEDs |
| Communication | UART, SPI, I2C and CAN |
| Qwiic Connector | Included |
| Form Factor | Standard UNO layout |
| Original Arduino Product | No |
Compatibility Notes
- Select Arduino UNO R4 WiFi inside Arduino IDE.
- Install the latest Arduino UNO R4 Boards package.
- Some UNO R3 libraries may not support the RA4M1 architecture.
- Confirm shield compatibility before connecting older shields.
- The GPIO pins should not directly power motors or high-current loads.
- CAN communication requires an external CAN transceiver.
