Mike M wrote:
>
> >
> >A little gotcha with this idea.
> >
> >Make sure you have some sort of brownout detect on the PIC or some weird
> >things may crop up.
>
> weird things?? such as?
>
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Who knows. Hence the word 'wierd'. Put a PIC in a circuit without a
brownout circuit and turn the supply down. Wierd things may start
happening or they may not. The PIC may lock up or maybe it won't. etc
etc.

The point is, you don't want to risk the PIC losing control.

At one time the segments on the led display on my Ignition controller
started rotating in a circle and then it stopped. That's pretty wierd
considering the display is fed by a serial to parallel decoder. It's
amazing the PIC sent out the signals to do this in an uncontrolled
state.

--
Best regards

Tony

http://www.picnpoke.com
Email sales@picnpoke.com