Hi there, the short sweet answer is no with a few reservations

if its a triac based solid state relay, it will stay on for the entire half
cycle for which it was triggered. If its a mosfet based module then you may
get it right but the filtering will be about as complicated as the driver you
need to trigger it ;)

the easiest way to do it is to use a pic syncronised to the mains ( via
opto-coupler) with an  interrupt which will trigger a triac, based on how far
into the cycle you need to trigger it for said brightness.

If the solid state relay is NOT zero crossing triggered, then you can use it
otherwise you'll just get the lamp to go on and off but no dimming.

if you google for pic and dimmer, you'll be presented with a world of good
ideas ( ok, maybe some not so good)

J



On Saturday 10 January 2004 08:35, you wrote:
> I want to control a 120VAC light.  Can I use a Solid State Relay with PWM
> from a PIC?
>
>
>
> James Tu
> james@2-bit-toys.com
>
> --
> http://www.piclist.com hint: The PICList is archived three different
> ways.  See http://www.piclist.com/#archives for details.

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