Arduino UNO R4 WiFi – Powerful 32‑bit MCU + Built‑in Wi‑Fi/Bluetooth for Modern IoT Projects

The Arduino UNO R4 WiFi is a major upgrade to the classic UNO series, combining a Renesas RA4M1 32‑bit Cortex‑M4 MCU with an ESP32‑S3 module for Wi‑Fi and Bluetooth connectivity. It also includes a 12×8 LED matrix, Qwiic connector, CAN bus, DAC, and expanded memory—making it one of the most versatile boards for IoT, robotics, automation, and education.

The Arduino UNO R4 WiFi is a next‑generation development board designed for makers, students, and professionals who need wireless connectivity and enhanced processing power. Built around the Renesas RA4M1 (Arm Cortex‑M4, 48 MHz) and paired with an ESP32‑S3 for Wi‑Fi/Bluetooth, it offers seamless IoT integration. The onboard 12×8 LED matrix, Qwiic connector, HID support, DAC, and CAN bus expand its capabilities far beyond the classic UNO R3.

Perfect for IoT dashboards, robotics, automation, smart home systems, and cloud‑connected projects.

Features

• Built‑in Wi‑Fi & Bluetooth via ESP32‑S3 for IoT and wireless control
• 32‑bit Cortex‑M4 MCU for higher performance than UNO R3
• 12×8 LED matrix for animations, debugging, and visual output
• Qwiic connector for plug‑and‑play sensor expansion
• CAN bus support for automotive/industrial communication
• DAC output for audio and analog waveform generation
• USB HID support (keyboard/mouse emulation)
• Fully compatible with Arduino Cloud for remote dashboards and OTA updates
• Improved memory and speed for complex projects
• Backward‑compatible pinout with most UNO shields

Package Includes:

• 1 x Uno R4 Wifi Board

*Image shown is a representation only. Color may vary depending on stock.