Arduino UNO R4 WiFi

UNO R4 with an onboard ESP32-S3 adding Wi-Fi and Bluetooth, a 12×8 red LED matrix, USB-C, Qwiic connector, CAN bus, and a 12-bit DAC. Operates at 5 V; accepts 6–24 V input.

Arduino

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About 75 boards across every Arduino generation: 5V Uno/Mega/GIGA, 3.3V MKR and Portenta, plus DFRduino and Bluno compatibles. Confirm the voltage rail before stacking any shield.

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