I'm using a low level trigger buzzer, it will sound if the pin is LOW, not in HIGH, ok.
I thought it had something to do with the sketch using interrupts and TIMERS, etc.
Then I wrote a simple sketch that beeps for a few milliseconds, counts the beep, and so.
After 320, 326, 335, etc, random values around those numbers, it will not buzz anymore until I reset the Nano.
What is happening here?