rad0 wrote:
>
> hello,
>
> I am wondering if it is possible to put a pic to sleep, and
> still have it monitor something.
>
> What I want to do is build a little device that monitors a switch,
> (monitoring a door), that turns on a light when contact is made
> or lost, whichever uses less power.
>
> I want to power this with a coin-size battery...
>
> So, my question is, can you put the pic to sleep, and still have it
> doing it's things...or, what do you do in this low power situation?
>
> have it wake itself up periodically and do its thing then go back to
> sleep, or what?
>

Put your switch on a Interupt pin (RB0 or RB port change on some PIC's),
it will wake it up.

Quentin

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