MHCOZY Zigbee Dry Contact Relay for Lights, Garage Opener etc

I’m trying to get mine working with my garage doors.

If I connect them as normally open and set them as momentary then I can use them. But the wall buttons that come with the garage door opener only work off & on.

Did you have that issue? If so, how did you get around it?

Does this device works in home assistance?. The description says needs a tuya router and I guess runs only over tuya software? How did you connect it to home assistance?

Without Tuya hub, just a Zigbee dongle with Zigbee2MQTT or ZHA

I’m not sure what you are getting at… my wall switches are normally open contacts as well. I just connected them in parallel.

I think the relays operating oppositely (new word I just invented) is to be able to drive reversible motors directly.
Jeremy.

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Yeah I just put the “???” as a placeholder for multiple uses.

Hi all,
i’m interested in ZG-005-RF for garage opener and I thank you for all your experience and detail i’ve found here.
I’ve another question: if I set the device as momentary (manually with the switch botton) in case of power loss and automatic reboot, is the state (momentary) confirmed or I have to push the button again to restore it?
Thanks in advance, bye

No you do not need to restore after a power failure. The device will remain in the current selected mode.

Also be aware there are 2 switches that look identical but have different input (control) voltage ranges. For controller voltage one type uses USB or DC7-32V the other type uses USB or AC 85-250V. The contact voltage is whatever you apply to it within the ratings for the contacts.

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Does anyone know how to get it into 433mhz pairing mode to connect a remote to it?

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I did mine but it was a while ago… if you hold down one of the “manual” buttons the LED will turn blue putting it in pairing mode. I don’t recall if any of the manual buttons do it so you may need to try either/all.

I do run mine with Key Fobs from the car and Zigbee from HA and they have been working perfectly for a long time now.

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Does anybody know what is the use of the Backlight mode switch? I do not see any difference using this switch.