Arduino UNO R4 Tutorial

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2，Compilation and Testing of LED Example

2.1】 When using the Arduino UNO R4 WIFI board for the first time and there is no serial port displayed upon inserting the USB cable,

Please wait for a while as the computer will automatically install the Arduino UNO R4 WIFI driver.

2.2】 After the driver installation is complete, click on COM Port.

2.3】 Test the display effect of the matrix LED:Click on the built-in matrix LED example provided by the official Arduino IDE.

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Arduino UNO R4 Tutorial - Matrix LED

Official Original UNO R4 Development board For Arduino UNO R4 WIFI / Minima Option