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171 posts

Master Geek
+1 received by user: 5

Topic # 248060 9-Mar-2019 10:13
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I recently picked up a cheap wifi switch from Amazon (MHCOZY WiFi Wireless Smart Switch Relay Module), and have a query regarding wiring. The YouTube videos I've watched on installation, all have a different set up with regards to wiring. With our Dominator door, the connectors look like this:







Can anyone please confirm, that I need to add a wire under the Common and Relay screws? All the YT videos I've seen have a different setup with this step, due to the various models of garage openers.




Thanks in advance for any tips. 🙂

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328 posts

Ultimate Geek
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  Reply # 2194226 9-Mar-2019 10:31
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Common and relay should work fine, but it needs to pulse not latch


2162 posts

Uber Geek
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  Reply # 2194263 9-Mar-2019 10:47
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The relay just closes a circuit. You can do this yourself by a *carefully* touching the two terminals with a bit of wire. If that controls the door you've got the right ones.


532 posts

Ultimate Geek
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  Reply # 2194332 9-Mar-2019 11:23
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As stated, just link the top two terminals together through the contacts of a relay for a couple of seconds and then open the contacts.


The two wires shown probably go to the manual switch in the garage.

171 posts

Master Geek
+1 received by user: 5

  Reply # 2194481 9-Mar-2019 13:42
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Thanks for all the advice. Worked a treat. I no longer need to open my shed door manually, like a chump! 😂

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