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.