> Secondly, in the btfss loop, if the RA0 voltage never makes it to
> logic 1, say if the
> pin is disconnected for some unknown reason, you get an infinite loop.
> That's a Bad Thing.
>
> Any thoughts, ideas etc?
>
> Ian

Have a count limit based on a good battery/connection. If you know
that the pin should change state within X number of loops then that's
what you'd use. Temperature of the R may have some small effect
on the count so a small margin might be needed. I think you'll need
to bring a time factor into this, perhaps couple the test with a timer
or WDT IRQ to limit the time spent waiting for something that possibly
may never happen

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