The new Arduino UNO R4 WiFi brings a serious upgrade to the classic Uno format while keeping everything familiar for makers and learners.
At its core, it features a powerful 32-bit Renesas RA4M1 (Arm Cortex-M4) processor paired with an ESP32-S3 module for built-in Wi-Fi and Bluetooth connectivity—opening the door to connected IoT projects straight out of the box.
Key highlights:
• Classic Uno form factor + 5V compatibility
• Faster 32-bit performance
• Integrated Wi-Fi & Bluetooth
• 12×8 onboard LED matrix for visual feedback
• Qwiic connector for easy sensor expansion
• Modern USB-C interface
It’s a solid bridge between beginner-friendly Arduino development and modern connected hardware projects.
Arduino UNO R4 WiFi