[Message Prev][Message Next][Thread Prev][Thread Next][Message Index][Thread Index]

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.



alt.security.alarms Main Index | alt.security.alarms Thread Index | alt.security.alarms Home | Archives Home