Don't make the cap too big and/or put a small resistor (~ 100 ohm) in
series with the cap. Otherwise, closing the switch discharges the cap with
high current - can eventually burt out the switch.
It depends on switch resistance though - if the switch "on" resistance is
1000 ohms or so (e.g conductive rubber) then it shouldn't be required.

It generally pays to put a simple debounce routine in software as well!

Richard P



Pull-up Resistance at PIC pin. Pushbutton to Gnd. Capacitor across
Pushbutton will give effective debounce ?
If anybody has used this method please confirm. Is there any pitfall ?

Thanks -- Biswanath Dutta

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