Reginald Neale wrote:
>
> >Hi all!
> >
> >I need to do some simple interfacing to 220V powerlines.
> >A PIC16C84 must monitor eight different lights to determine if they
> >are switched on or not. All the switches are situated together, so if
> >I could find a way to "tap" the powerlines, and feed this to the PIC,
> >I don't hafta lay km's of wire to the lights themselves (this won't
> >be practical anywaty). I'm a little nervous about connecting mains to
> >the PIC. Also, I hafta keep the component count really low, mainly
> >for budget-, and space-related reasons.
> >
> >Anyone have some simple suggestions that could help me?
> >
> >Thanx!
> >Gaffs.

Hall effect current sensors could work well here. You would also be
isolated from the mains power.


Steve Collins

Petron Industries Inc.
Houston, Texas

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