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I have an Arduino clone of a Leonardo and I was just wondering how many keyboard commands I can send to the computer per second via USB. I'm not talking about the delay between send and receive (because that could vary between computer), I'm talking about the minimum possible time between something like stimulating a key press down and key press up as fast as possible.

asked Apr 9, 2016 at 9:12

1 Answer 1

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From my tests, it has been at least 1 millisecond, however, it can depend on what is running simultaneously on the Arduino.

answered Apr 10, 2016 at 17:45
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  • Well what if you were doing key up and key down of a single character, with that only being in the void loop? Commented Apr 11, 2016 at 1:49

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