Mark,

Go to the Radio Shack web site and enter in catalog number 990-0039

For $24.95 this is a real nice.  It is optoisolated for the PIC.  They have
a 4.7k ohm resistor in series with the opto LED for 0-10vdc operation.  You
just need to change this resistor so it will be more compatible with 0-5vdc.
In the manual they show how to hook-up halogen lights using a transformer on
the output.

http://www.radioshack.com/

I ordered this from their web site, but you can also order from your local
store.

David


----- Original Message -----
From: Mark Boyce <mark@INTERHOUSE.REDBUS.CO.UK>
To: <PICLIST@MITVMA.MIT.EDU>
Sent: Tuesday, December 07, 1999 3:49 AM
Subject: [OT]? Lighting Controllers


> Hi all,
>
> Hope this isn't too off topic for people :-)
>
> I need to be able to switch/dim some lighting from a pic
> controlled system.
>
> The actual target lighting will be pairs of 12v halogen spots
> such as you find in most low-voltage desk lamps or alike.
>
> The circuit I'm after should produce either 0<->12v or
> 0 <-> 240v on the output and take something I can connect
> to a pic on the other side.
>
> Software is my game with a little bit of 'plug the black boxes
> together' digital electronics so I'm out of my depth here :-)
>
> Does anyone have any pointers/urls/circuits/tips/etc that might
> help ?
>
> Cheers,
>
> Mark
>
> --
> "What contemptible scoundrel stole the cork from my lunch ?"
>      - W. C. Fields
>