As I prepare to try my hand at debouncing a switch input, I'm curious to
know if anyone has characterized mechanical bounce in terms of typical
frequencies and durations.  If that information is not directly
available, my question then becomes one of pragmatics: What sampling
frequency have you successfully used, and how many samples did you need
before declaring a switch settled?
Scott Dattalo, on his amazing debounce technique[1], talks about the
"vague terms" surrounding debouncing in general.  I'd like to get a feel
for the numbers that real-world practitioners use.

Reference:
[1]
http://www.interstice.com/~sdattalo/technical/software/pic/debounce.html

--
Michael Park
www.seattlerocketworks.com