Arduino UNO R4 WIFI أردوينو أونو واي فاي

The Arduino® UNO R4 WiFi combines the classic UNO form factor with a dual-microcontroller architecture and integrated Wi‑Fi capabilities, providing a flexible platform for hobbyists, educators, and prototyping professionals. It pairs a Renesas RA4M1 (Arm® Cortex®-M4) main microcontroller with an ESP32‑S3 coprocessor for wireless connectivity, while maintaining familiar UNO headers and USB‑C programming.

Key specifications:

• Microcontroller: Renesas RA4M1 (Arm® Cortex®-M4).
• Wireless coprocessor: ESP32‑S3 (for Wi‑Fi and additional processing).
• USB: USB‑C programming port.
• Digital I/O pins: 14.
• Analog inputs: 6; DAC: 1; PWM pins: 6.
• Communication interfaces: UART (1x), I2C (1x), SPI (1x), and 1 CAN Bus.
• Operating voltages: board circuits at 5 V (ESP32‑S3 operates at 3.3 V); VIN 6–24 V; DC current per I/O pin 8 mA.
• Clock speeds: main core 48 MHz; ESP32‑S3 up to 240 MHz.
• Memory: RA4M1 with 256 kB Flash and 32 kB RAM; ESP32‑S3 with 384 kB ROM and 512 kB SRAM.
• Dimensions: 68.85 mm width × 53.34 mm length.

This board preserves the UNO layout while expanding connectivity and performance for IoT projects, sensor networks, robotics, and educational applications that require on‑board Wi‑Fi and a modern Cortex‑M4 core.