> -----Original Message-----
> From: piclist-bounces@mit.edu On Behalf Of Wouter van Ooijen
> Sent: Monday, February 08, 2010 1:26 AM
>
> > I`ve already tried to call them in intervals of 100ms, it
> worked, but is it
> > the best way to do it? or it is better to call them in the main
> loop of the
> > code with no time interval?
>
> AFAIK the 'general wisdom' is that contact bounce lasts no longer than
> 50 ms, so that determines the maximum frequency (20 Hz). The minimum
> frequency is determined by the feeling of responsiveness. If your 10 Hz
> feels OK, by all means stick to that.

A great introduction to debouncing is Jack Ganssle's "A Guide to
Debouncing".
http://www.ganssle.com/debouncing.pdf


Paul Hutch

>
> Wouter van Ooijen
>
> -- -------------------------------------------
> Van Ooijen Technische Informatica: www.voti.nl
> consultancy, development, PICmicro products
> docent Hogeschool van Utrecht: www.voti.nl/hvu

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