Hi everyone, I'm a beginner code writer, I want to do an automatic irrigation project. But I have a problem. I wrote basic code and run but on the serial monitor appeared question marks, ı didnt understand(baud numbers same). [20240820_230341]

Arduino Serial monitor

camsysca August 20, 2024, 10:54pm 4

Try that again.
In code tags, please. Haven't you read:

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