Arduino Uno R4 Wifi

The Arduino Uno R4 Wifi is the wireless version of the fourth-generation Arduino UNO. It combines a 32-bit Renesas RA4M1 main microcontroller with an Espressif ESP32-S3 module that handles Wi-Fi and Bluetooth, while keeping the classic UNO shape, pinout and 5 V logic, so most shields and sketches still work. A built-in 12×8 LED matrix and a Qwiic connector make it easy to show data and add I2C sensors without extra wiring.

Arduino Uno R4 Wifi Specifications

• Main microcontroller: Renesas RA4M1, Arm Cortex-M4, 48 MHz
• Memory: 256 KB flash, 32 KB SRAM, 8 KB data EEPROM
• Wireless: ESP32-S3 module for Wi-Fi and Bluetooth LE
• Operating voltage: 5 V
• Input voltage (VIN): 6–24 V
• I/O: 14 digital pins (6 PWM), 6 analog inputs, 12-bit DAC
• Interfaces: UART, I2C, SPI, CAN and a Qwiic I2C connector
• Extras: 12×8 LED matrix, real-time clock, USB-C port

Arduino Uno R4 Wifi Applications

• IoT projects that send sensor data to the cloud or a phone
• Web dashboards and remote control over Wi-Fi
• Bluetooth LE devices and wireless controllers
• Learning Arduino in schools and universities on a modern board

What's in the Box

• 1 × Arduino UNO R4 WiFi board

Tip: Install the Arduino UNO R4 Boards package from the Boards Manager in the Arduino IDE before uploading. Each I/O pin can supply only about 8 mA, so drive motors, relays and bright LEDs through a transistor or a driver module.

Orders placed before 14:00 are ready for pickup the same day. Delivery across Lebanon usually takes 1–3 working days.