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Does anyone have information on motion detection using a comparison of video frames from an active tv camera?

I picked up a program that uses the sound card as an input for a scope. I believe I found it on Larry's Robotics and Electronics Page. <p>Ray

Hello again Russ, I guess I need to restate my question. My remote garage door opener opens my garage door from within my house. The receiver in the garage is about 25 feet from the house. It is an old system so I doubt that it operates a 3Mhz. My X10 detectors are mounted outside of the house and t...

Hello Russ, I have a steel garage door and a stucco building which contains the wire mesh as you say. I cannot figure out why my garage door opener works fine even from within the house which means it has to penetrate two buildings with wire mesh. The remote for the garage door operates on 9v. Is it...

I do have the x10 system. TV cameras, transponder, vcr commander, and Eagle eye detectors. I have found that in an outside environment the x10 system is ineffective. The detectors do not have the range to penetrate a building which is stucco. Has anyone had any luck in increasing the range of the de...

Thank you all for your help. I am checking everything out. Lot of good info.

Hello Al,
I was looking for something more compact. Your ideas are a good alternative. Thanks

Thank you Al, I would like to find the IR code used by a VCR for record and stop. I would then like to build an IR transmitter for these two commands. I want to use the VCR as part of a security system. The range of the transmitter has to be about 25 feet and triggered by a PIR.

Does anyone know of a website that has information on how IR remote controllers and receivers work? Have there ever been any NV articles on the subject?