I made a 3D-printed housing for it, posted over here:
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Relevant Item to Note - Release 2.2.9 of Hubitat Compatibility
Wonder if this means we need to reload that driver?
Big thanks to the Hubitat Team for noticing.
Hey, just a short and possible not so smart question: Do I get it right, following the schematics from the relay, that I could power it with, let's say a 5V powerbank but still work for example a 12V stepper motor with this thing, because of the possible different output?
Not how I use it (12vdc all the way),
but what you are describing is how I see it.
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Posting this here so fans of these relays are aware their guts seem to be similar to the guts of these bulb socket/adapter units ( ZigBee Smart Light Bulb Socket, AICase )
linked in the thread below.
I'll tell you what its a good repeater, I've got 7 devices using it
Are you referring to the bulb socket adapter device or the relay device, ....or both?
The relay, as per thread title
Hey there, just to make sure, for a project I'm planing I've got two questions:
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When I'm right, there are buttons on the relay, allowing you to switch, what ever you've connected to your relay, manually. Is this correct?
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Let's say point 1 is correct, if for some reason, the relay isn't connected to a hub, can I still manually use this buttons to switch the connected devices?
Somebody cover my memory here....
I do not recall physical switches on this relay that were convenient for turning it on/off.
BUT... there is a RF control feature built in that will respond to a 433Mhz remote(fob). I have not used it but assume it would work without connection to the hub and likely was integrated for that very purpose as a backup/alternative.
I'm not sure either, especially while trying to understand the description from Amazon.
There it says manual switch / RF pairing button. That's what got me confused, because I can't find a manual and I don't understand if this is a manual switch for RF pairing or a manual switch which can be RF paired also...
I'm going on vague recollection...but I think pushing the respective relay's button does have the effect of being an on/off switch and I think you hold it for longer to initiate the pairing process. Still not falling under the "convenient for regular use" criteria.
Mine are all zipped up in weatherproof boxes that I'd rather not open to check for ya right now.
Update: I just found the spare I was actually wondering the other day if I still had, thanks for prompting me to look.
ANYWAY, testing without ANY attempt to pair (network pairing light still flashing at me) confirms the button DOES behave as a switch.
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That's perfect. 
Might be a dumb question, but can I just put buttons in between what ever I want to control and the MHCOZY? It is just to have local control without the need to push the little relay buttons. Would make things way more convenient, when building my own smart home devices.
If you want to do that I think I would explore the RF feature built into these relays. I have not done so, the OP on this thread has as I recall. Not sure how that works with multiple channels.
RF just wouldn't be suitable for the project I have in mind (smart coffee machine with different features), so buttons are the way to go.
Ah, I gotcha. Well, the only thing I have thought about in that regard is HE turning on the espresso maker for preheat before I get to it in the morning.
Beyond that you gotta remember where these boards are made, what certifications they do not have, and what your insurance company is going to say when you ask for a new set of kitchen cabinets after something goes terribly wrong 
Yeah, I had a few more features in mind, which I want to achieve. What I want to have is automated water filling of my tank (I might use a Valve with a few water sensors), freshly ground coffee and everything variable, depending on how much coffee I want and maybe the strength. The so full service variant. 
And at least basic functionality should still work offline.
Ah, now the "water fill plumbed in" aspect IS something I would consider messing with....but that would be more of a "while I'm standing there" operation saving 80% of the hassle with only 20% of the manual labor in pushing/turning a physical valve.
