Original Arduino UNO R4 WiFi – 32-bit Microcontroller Development Board

The Arduino UNO R4 WiFi is an advanced microcontroller development board that combines the Renesas RA4M1 32-bit microcontroller with an ESP32-S3 module for wireless connectivity. It provides improved processing capabilities, expanded memory, and additional hardware features while retaining the familiar Arduino UNO form factor.

With built-in Wi-Fi, Bluetooth, and a programmable LED matrix, the board is suitable for developing connected devices, robotics applications, automation systems, and embedded electronics projects.

Key Features

• 32-bit Processing: Renesas RA4M1 Arm Cortex-M4 processor running at 48 MHz.
• Wireless Connectivity: ESP32-S3 module supporting 2.4 GHz Wi-Fi and Bluetooth.
• Expanded Memory: 256 KB Flash, 32 KB SRAM, and 8 KB EEPROM.
• Built-in LED Matrix: Programmable 12×8 LED matrix for animations, indicators, and visual feedback.
• Multiple Interfaces: Supports UART, SPI, I2C, and CAN connectivity with an external transceiver where required.
• Analog Capabilities: Features a 14-bit ADC and up to 12-bit DAC.
• USB-C Connectivity: Supports programming and power through USB-C.
• Arduino Ecosystem: Compatible with the Arduino IDE and a wide range of compatible shields and accessories.

Applications

• IoT and wireless monitoring systems
• Smart home automation
• Robotics and control systems
• Wireless sensor networks
• Data acquisition and logging
• Interactive LED displays
• Industrial and embedded prototypes
• Educational electronics projects

Technical Specifications

Package Includes

• 1 × Original Arduino UNO R4 WiFi Development Board

Note: Check voltage requirements and pin compatibility when connecting external modules. CAN communication requires an external transceiver. Use the appropriate USB-C cable or power supply for your setup.