real owl
Hey! What hardware would you recommend for triggering a garage door opener button?
I’m considering a fingerbot, but I’m unsure which one to buy (advice/link to product you can buy in Sweden/europe appreciated!). I want to use zigbee (mqtt) or WiFi (without extra hub) only.
Attached pics of the buttons inside, maybe it’s possible to trigger with something else? I have very limited knowledge of electronics 🙁
Happy for any advice! Thanks!!
uncut coyote
You could use something like a Shelly to do what this button does on the garage door opener itself (close a circuit momentarily) instead of the button
real owl
Okey! What Shelly product could do that? I don’t know what to look for? 😄 thanks in advance 😃
uncut coyote
Shelly 1 would be a good choice
native flax
i would go with a shelly plus uni, it has 2 relays(one for opening the garage door) and 2 inputs to add a door sensor for both the complety open and completely closed state
also while you are there you can just hook up a temp / humidity sensor to it. And also your garage door opener already has 12V or 24V power out, so you can just hook it up to that directly, no need for an external power supply
tell me the model number of the garage door opener itself and i can help with the wiring
uncut coyote
Out of curiosity, what benefit would using two contact sensors (for fully closed and fully open) be as opposed to a single contact sensor for open / fully closed?
Apart from an opening state I suppose
native flax
if you stop it mid-way it for example it would still report as open or closed depending where you placed the sensor
if you have two, you can have an additinal "in motion" state(if both sensors are telling you its open for example)
uncut coyote
Yeah that's fair. IMO the additional complexity of that wouldn't be worth it
native flax
i mean you need to wire up the sensor anyway and for the closed state you can mount it next to the motor so its a short route for the wires 🙂
but yes usually 1 is enough but if you have the option, why not
tilt sensor might be the simplest though, thats a single sensor and you have all the data
real owl
Wow thanks guys!! 😃😃 sounds great @native flax ! Unfortunately I was trigger happy and ordered a https://www.lohelectronics.se/en-gb/hemautomation/wifi-1549/smartthings/shelly-plus-1 before I got to see your first message 😄
I’ll check if I can find what model I have. I think(!) the garage door is a Chamberlain ML750.
native flax
i can't seem to find a proper wiring diagram for this model to see where is the 12/24V power output is, but the push button input is the 1 & 2 terminals:
true mist