Suggestions for HASS controllable momentary relay switch (DC)

Hardware
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1

Hi folks,

I have a motorized gate which connects by wire to an intercom system with a button to trigger the opening and closing of the gate. I’m looking to be able to trigger the gate from HASS. The switch on the intercom basically just connects to wires together so I could wire a relay in parallel with the existing switch to activate the gate. What I’m looking for is a HASS controllable momentary relay to switch low voltage DC and runs from DC (Intercom uses 18v). I have wifi connectivity and Zwave currently.

2

As an FYI, it doesn’t have to be momentary, you can take a regular switch and build an automation to make it momentary, which might give you more choice I have done this for my home-brew garage opener, although I used a mains powered ZWave switch.

3

That’s a good point! Thanks for the suggestion, that might make things a bit easier.

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