Good call...

...be careful about polarity, though (if you go the opto-isolater
route)...

> -----Original Message-----
> From: adam-request@viratech.com [mailto:adam-request@viratech.com] On
> Behalf Of Dave Gomez
> Sent: Sunday, August 11, 2002 11:51 PM
> To: PICLIST@MITVMA.MIT.EDU
> Subject: Re: [PIC] [EE]: Using DC to control AC.
>
> How about using relays, they are electrically isolated on each side,
or
> opto-isolators, rated for ac on one side.
>
>
> Dave gomez
>
> On 8/11/02 9:07 PM, "Tony Harris" <tony@ELROYNET.COM> wrote:
>
> > hi,
> >
> > I'm trying to figure out how to use my PIC to control an AC voltage.
> >
> > For example:
> >
> > I have a fountain that las low voltage AC lights, and a set of low
> voltage
> > AC pumps (say 3 lights and 3 pumps, all run off of 12V AC, max all
three
> > lights and all three pumps would be on.  The pumps are rated at
3.6A).
> I
> > want to create a program to turn on and off lights and the pumps at
my
> will.
> >
> > Obviously, my PIC circuit is a DC circuit.
> >
> > So, can anyone suggest what I might be able to do in order to
control
> this
> > AC voltage?  I don't need to funnel a lot of power, 60 watts
(actually
> 43.2,
> > but increasing a bit for safety) per "switch".
> >
> > So, the AC side would be 12V AC, the DC would be 5V DC for the PIC
and
> > either the LCD or perhaps LED's to indicate what is on and off.
> >
> > Any resources, sites, small samples would be most appreciated.
> >
> > -Tony
> >
> > --
> > http://www.piclist.com hint: The PICList is archived three different
> > ways.  See http://www.piclist.com/#archives for details.
> >
> >
> >
>
> --
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