Wouter van Ooijen wrote:
> This is new to me. You say a pushbutton (lika an ordinary keyboard
> key) could bounce *while being pressed down*?

Yes, depending on how the switch is constructed.  If the pushbutton directly
activates the switch closure, then wiggling it can cause noise or bounce.

> And if so, how would you recognise such a bounce?

By it being much shorter time than a real release and press.  I usually
figure a human can't do much of anything in less than 50mS and use that as
my debounce time.  The kind of noise I'm talking about could be higher
resistance or complete open for microseconds, usually not milliseconds,
certainly not 50mS.


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