I read a lot of codes, and none of them match each other. I did a bit of programming, but one thing I'm "confused" about is: how many ways can you read on USB (how many classes or libraries do I need to call? Such a thing)? when you use the .serial port (does this mean that you are reading a serial port or even USB is using the same class or library)? This is the first time I'm trying to read from USB and have absolutely no idea how to start. if I can figure out the first step, I can continue ... ANY clues would be greatly appreciated,
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