Timing with Arduino

Graynomad:
What exactly does this mean?

The piezo setup that we're using requires pulses of air at certain frequencies so as to facilitate a sort of oscillatory motion on a rubber layer on top of which the piezo strip is attached.
I'm sorry if the previous wording I used was ambiguous!

Graynomad:
Do you need pulses of air every 30-40mS?


Rob

Yes sir!