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Re: Simple LED Alarm Bell for CCTV recorder
On Mon, 14 Mar 2005 20:27:25 -0500, "Jackcsg" <nospam@xxxxxxxxxx>
wrote:
>"flashing" an LED(s), I'd be using an external power supply and isolating
I think the CCTV DVR would control the flash. I expect the alarm to
only go off when someone walks past or stands under it. It might only
sound for a second or so. I'm thinking of hooking up a PIR sensor to
it. I don't need to worry about the flashing as the CCTV DVR is going
to control the on/off side of things.
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