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Garage door opener help

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Garage door opener help

Unread postAuthor: stuffbuilder » Tue Jul 31, 2012 5:00 pm

So recently I got hold of the circuits from an old Genie garage door opener. I wanted to use them as a remote detonator for airsoft satchel charges, but I know next to nothing about circuits. I'm guessing that two of the wires coming from the receiver get connected to a power source and the third gives off a pulse when the button on the transmitter is pressed. Does anyone have any idea how this thing might work?
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transmitter on the left, receiver on the right
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Unread postAuthor: dewey-1 » Tue Jul 31, 2012 5:18 pm

Take a better close up picture of the receiver both top and bottom of board with out the flash.

Also a close up of the receiver label on the metal case.

Do know the model/part numbers of each unit?
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Unread postAuthor: stuffbuilder » Tue Jul 31, 2012 6:55 pm

How's this? The label says 10953BS 26866S if you can't make it out. The transmitter model number is GT90-1 and the receiver model number is GR390-12.
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Unread postAuthor: Zeus » Tue Jul 31, 2012 7:07 pm

Ok, the big box on the left looks like a relay, and I'm getting it will close between the white/grey and black wire.

Obviously the power is supplied in the red and black. I think the voltage will be 5 volts, check the voltage of the relay, should be either 5 or 12 volts.
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/sarcasm, /hyperbole
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Unread postAuthor: POLAND_SPUD » Tue Jul 31, 2012 7:32 pm

loled @ that DIP switch....
makes you wonder how easy it used to be to break into someone's house if you build a transmiter that used brute force
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Unread postAuthor: Zeus » Tue Jul 31, 2012 8:09 pm

PS, you can buy universal transmitters with the DIP outside, brute forcing is very easy.
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/sarcasm, /hyperbole
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Unread postAuthor: dewey-1 » Tue Jul 31, 2012 9:58 pm

If the pictures were in focus I could help out!
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Unread postAuthor: Zeus » Tue Jul 31, 2012 10:06 pm

Well the relay looks like an SPDT, I reckon just soldering onto the NO and common terminals should do the trick.

Like Dewey said.

Image

Image

Image

Image
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Unread postAuthor: jackssmirkingrevenge » Tue Jul 31, 2012 10:34 pm

POLAND_SPUD wrote:makes you wonder how easy it used to be to break into someone's house if you build a transmiter that used brute force


No no no... it makes you wonder ;p
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Unread postAuthor: ramses » Wed Aug 01, 2012 8:54 pm

POLAND_SPUD wrote:loled @ that DIP switch....
makes you wonder how easy it used to be to break into someone's house if you build a transmiter that used brute force


I could be wrong, but I think the better ones use something more like keyless entry remotes and use a rolling random number generator.
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POLAND_SPUD wrote:even if there was no link I'd know it's a bot because of female name :D
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Unread postAuthor: POLAND_SPUD » Thu Aug 02, 2012 5:27 am

No no no... it makes you wonder
JSR being a dick... lol I didn't expect that :D

I could be wrong, but I think the better ones use something more like keyless entry remotes and use a rolling random number generator.
Yeah I can use wikipedia too... :)

http://en.wikipedia.org/wiki/Garage_door_opener
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Unread postAuthor: jackssmirkingrevenge » Thu Aug 02, 2012 5:46 am

POLAND_SPUD wrote:JSR being a dick... lol I didn't expect that :D


If I really was a dick, I would post stuff likethis :D
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Unread postAuthor: Technician1002 » Tue Aug 07, 2012 9:52 am

Most of those remotes with 3 wires are configured with Common, Power, and Output.

Some use AC at 18 or 24 Volts and some use 12 Volts DC depending on the model. When you press the remote, the relay gives a pulse connecting Common and Output to trigger the door. Look online for a book on the opener this was for.
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