Connecting Tuya WiFi Switch to VEVOR ZTGD800 Garage Door Button Terminals

Question

Good day,
I want to connect (plug in/solder) a garage door wifi switch (e.g. Tuya).
I would like to connect to the opening and closing buttons. I have included a picture of the buttons below.
Is this possible? Please give me your suggestions.

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Model ZTGD800 by VEVOR

bubu1769 · Accepted Answer

The relay must have a voltage-free contact. Something like this: For gates there are also special relays with a sensor so that the application shows whether the gate is closed For example such a one:

bubu1769 · Answer

And the gate controller doesn't have a dedicated input for controlling the gate with a single pulse? Please specify what model of this controller you have.

rfa_rafal · Answer

Model ZTGD800 by VEVOR

bubu1769 · Answer

Well, according to the manual, page 82, you have a dedicated input under which you can connect an external control, a GND and KEY connector.
Only the relay has to be voltage-free, dedicated to such applications.

rfa_rafal · Answer

WoW, great.
As soon as I get home, I'm acting.

Thanks, I'll return the favour somehow :-)

Added after 9 [hours] 45 [minutes]: .

At the top I have an output for a "wall switch", just which one is it? ( 1 or 2 )
Those inputs at the bottom are the photocell and the battery....

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... and now if 1 or 2 then they open/close, and the wall switch or this wifi switch of mine must have power given to it (phase and N) ?

bubu1769 · Answer

These are the jumpers from the photocell, don't touch that.
Don't you have a connector on the motherboard like the one shown in the manual?
The wifi relay must of course be connected to the power supply, but as I wrote earlier it must be a relay designed for such a function, i.e. with a voltage-free contact.
The best thing to do is to give a photo of the relay you have.

rfa_rafal · Answer

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According to the manual gnd and key are used for the switch, only that the key is empty ( solder in? ).
In my case behind the picture the first two wires on the right are connected to the photocell, the gk one to Red.

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I don't have a wifi switch yet ( I have a few for switching lights and blinds)

bubu1769 · Answer

This means you have a different version of the board.
You can check if this KEY input works at all by short-circuiting it with a piece of wire to GND, it is possible that there are some elements missing on this KEY line to make it work.
The relays you have without modification will not be good for controlling this gate.
If it turns out that the KEY input is not active, this roller shutter controller could be connected to the buttons so that it controls the gate, but you will have to modify the connections inside the wi-fi relay or add external relays.

rfa_rafal · Answer

There is success! :-)

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Short circuit GND and KEY closes/opens.
Ordinary WiFi switch or for roller shutter gates?

You will need to solder to the KEY, I understand, and connect to the switch.
Thanks a lot!!!

rfa_rafal · Answer

Thanks a lot! If you will be in Poznan I invite you :} Seriously, a big thank you.

Connecting Tuya WiFi Switch to VEVOR ZTGD800 Garage Door Button Terminals

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