[Hai-users] Sun sensor

[David Harper]

Don't know if this will help or not, but Lowes and Home Depot sell a fairly inexpensive unit that will control 110VAC.  I have one mounted on the lights at the end of my driveway and it turns them on at dusk and off at dawn.  Maybe something like this along with a 110VAC relay might do what you need.  

Dave

---------------
Dave Harper             Chiaro Networks
972-739-7919 (voice)	251 Renner Pkwy.
972-739-8020 (fax)	Richardson, TX 75080




-----Original Message-----
From: Justin Matlock [mailto:jmat at shutdown.net]
Sent: Monday, May 09, 2005 4:15 PM
To: hai-users at tssi.com
Subject: [Hai-users] Sun sensor


Anyone out there have a recommended source or part for a sun sensor?

I need something that will activate when the sun is actually shining, and
deactivate when it's not.  I have solar collectors on my roof for heating my
pool, and the only time I want them to have water flowing is when the sun is
actually shining -- otherwise, the collectors end up cooling the pool down.

I already control the pump system using a standard 220v X10 controller, and
want to use the OP2 to control the valves (12v) that divert water to the
collectors.  Simple enough.

I was thinking I could get a small electric solar cell and connect it (in
some way) to a relay that will only throw when a certain voltage is produced
by the solar chip.. But I have no idea how to go about wiring that up.

Thanks;
Justin


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