About this item

The Official Arduino UNO R4 WiFi is the newest addition to the Arduino family, combining the classic UNO form factor with modern wireless capabilities. At its core, it features a powerful Renesas RA4M1 32-bit microcontroller running at 48 MHz, providing enhanced processing power and memory compared to previous UNO versions. The standout feature is the integration of the ESP32-S3 Wi-Fi module (ESP32-S3-MINI-1-N8), which equips the board with built-in WiFi and Bluetooth connectivity, opening up possibilities for IoT projects and wireless communication without needing external modules.The UNO R4 WiFi maintains a 5V operating voltage and supports standard UNO shields, though some software compatibility changes may occur due to the new microcontroller architecture. It comes with 256 kB flash memory, 32 kB SRAM, and 8 kB EEPROM, offering ample storage for complex applications. The board includes 14 digital input/output pins and 6 analog inputs, providing flexible interfacing options.This combination of classic Arduino usability with advanced wireless tech makes the UNO R4 WiFi ideal for developers seeking to build connected devices, smart home applications, or wireless sensor networks—all while using the familiar Arduino ecosystem.