The difference between void setup (void) and void setup()

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1

What's the difference between void setup (void) and void setup()

AND between void loop (void) and void loop()

when the () should be kept blank and when should put "void" into that??? Thanks.

2

There is no difference. The void can be but between braces and simply states the fact that the function has no parameters. You can use either one.

3

goodinventor:
There is no difference. The void can be but between braces and simply states the fact that the function has no parameters. You can use either one.

Thank you very much