That's a bit different and based on our mutual confusion I see where you're going.
For you to bring in the event of movement or button press, you could use alexa/google and a virtual switch so that when the button on the doorbell is pushed it activates the virtual switch which in turns does something on hubitat. ( have not tried this on Homekit,) For mine though I bring in my reolink stuff into hubitat via Camect. (motion sensor and video)
Hacking the Reolink chime was straight forward. I get a four volt signal when the chime is activated.
I could use that signal to close a relay, then into a Zen17 device I have. I've verified the zen17 generates reports on the input relay closure that I can use in HE to do whatever.
But, I may not need the relay. The Zen17 has modes that sense "low voltage", but nothing documents what the voltage threshold needs to be.
I'd rather use an FET with pull-up or opto-isolator than a relay, but specifications for the Zen17 inputs don't exist--at least I can't find them.
So, I will have to experiment.
I've also failed to find a Zwave device that would send a report based on the state of a logic signal--that would be optimal. It would seem that would exist, but I can only find devices that activate on a "dry contact" relay closure. Seems silly to have to have the relay...
Someone in this thread said Zooz support was good, and I have to agree!
I got a response back within and hour, and three back/forth emails since last night.
So, I don't need a relay--the signal from the Reolink chime can be connected directly to the Zen17 inputs. I get the Zwave report I need so I can make HE rules.
Most technical support nowadays is so bad I don't even try. So, this forum was great just to let me know Zooz is different!
Thanks!
Please send pics of setup when you get it working. I already have a Zooz 17 still in a box and willing to buy another chime.
Here's the original thread I saw (with my comment about easier place to connect ground wire):
https://www.reddit.com/r/reolinkcam/comments/1e90te5/reolink_doorbell_chime_v2_add_internal_relay/
Here's mine.
Goop is on the blue wire where I soldered to pin 6 of SOIC. This strain relieves the fragile solder joint.
Small hole is drilled in side of enclosure to pass the wires. Knot in twisted wire pair is for strain relief of the wire pair.
Wire from pin 6 of SOIC goes to VC of the one of the relay inputs on the Zen 17. Black wire (ground for the Chime) goes to the C input.
Zooz tech support said DC voltage would work, threshold for reporting is two volts. So, the four volt output from the chime is sufficient.
I plan to use the inputs for relay #2 to sense the 24Vac across the original house chimes. That way, I'll get the Echo Speaks actions regardless of whether the Neolink button or the original doorbell button is pushed.
It's mentioned in another thread, but it can really mess you up---
Parameter changes on the Zen 17 don't take effect unless you exclude, then redo the include.
I wonder if there is a simple open/close relay type of thing in the chime anywhere. I've always been a fan of using contact sensors to have a relay short across where the reed switch in a contact sensor normally is.
This is the approach I take to get my dumb interconnected First Alert smokes to alert in HE.
There does not appear to be a relay in the Reolink Chime:
But, if you think about, a relay input to a device like a Zen17 has to be converted to a logic signal somehow. The relay is just a means of doing that. The relay is probably connected to a pull-up resistor to get the required logic signal.
Driving the coil of a relay in something like the chime device requires current that is significant relative to the total power budget. That's why the OP in the reddit post said a micro-relay is required. But, a logic input to a device like a ZEN17 requires negligible current to drive to 4V or ground.
But, I think you were talking about a relay that already existed in the smoke alarm and using the coil drive as an input so something like a Zen17. If that's the case, it's really just a voltage being sensed by the Zen17 anyway.
First Alert and Kiddie (Probably others) sell a relay that goes inline on the hard wired smoke circuit.
But yeah, that thing is basically acting as the Zen17
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