Harold Hallikainen wrote:

>         When interfacing to the outside world, I like to put a 10K pull-up, then
> a 10K series resistor to a schmitt input on the PIC. I also then put an
> appropriately sized capacitor between the PIC input and ground. This
> keeps power consumption down while slowing down edges and uses a PIC
> input that can deal with slow edges.
>
> Harold

Harold, won't this give you a 50/50 voltage divider? So when the switch
goes low the pin voltage only goes down to 2.5v? Or are you suggesting
the
switch goes at the point between the two resistors. This will work but
could
mean you need to run three wires to a externally mounted switch?
Please explain? :o)
-Roman

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