> One of the things that are wonderful about PICs is the fully static cmos
> circuitry. Few people realize that you can have the PIC run with 50Hz
> clock using a RC oscillator and use almost as little power as if it was
> sleeping.

Yes, I hadn't considered going VERY slow.  I'm using the internal osc and
sleep because I need the speed (driving a 4KHz piezo) when awake, but I
wonder if I can use an external RC and another pin as a throttle.  Probably
a thread back in the archives somewhere.  What I'd really like is a
throttleable xtal...

> Even at 32kHz with a cheap watch crystal the power drain is so
> low that the difference vs. sleeping is almost negligible.

If your wake duty is low it's MUCH more efficient than 32k the whole time.

Thanks!

Bruce Cannon
Style Management Systems
http://siliconcrucible.com
(510) 787-6870
1228 Ceres ST Crockett CA 94525

Remember: electronics is changing your world...for good!

>

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