After writing my last post about my frustrations in trying to get this to work, it occurred to me that I didn’t really provide much detail that will save others from going through the same ordeal.

My journey started with a Decora Digital DD710-BDZ 0-10V Dimmer Switch but it’s my impression that this will apply to all of the old Decora Digital Bluetooth devices.

This does NOT apply to Decora Smart devices using Wi-Fi, which integrate nicely with Home Assistant. And if you’re out of the loop like I was, you’ll be happy to know that there is now a new version of the 0-10V dimmer that will work. If you need one of these, buy the D2710-1BW instead.

Now, when I tried to get this working, I found several old links implying that it at least used to work and thought that maybe I just had to put a bit of effort in. You’ll come across mentions of an old Home Assistant integration that’s no longer maintained and if you try to find the details you’ll discover it’s been removed entirely. That only happened a month ago though, so in my defense I started researching this a long time ago and it wasn’t removed yet.

You might still find these old docs though and think, like I did, that surely you can make it work! You’ll then come across this old GitHub repo with instructions on how to get the API key that’s the magic sauce that makes everything work but of course, it won’t work.

You won’t be discouraged by the fact it’s all decade-old code because you’ll find THIS project that’s only 7 years old that KNOWS the other one doesn’t work but apparently resolved the issues.

Of course, that one doesn’t work anymore either but since THEY were able to fix it, surely YOU can fix it too!

Now… stop. JUST STOP.

Whatever Leviton did to break it made it properly broke and nothing I tried could get through to it. And I TRIED. I could read status values and I attempted to write to it but I couldn’t find anything resembling a key in it and I couldn’t get it to respond at all to any of my commands.

My best guess is that whatever Leviton did to it, they did it as a security fix and closed the hole that was allowing any sort of control of it outside their official app. You simply can’t fool it into giving up the key anymore and you can’t make it do anything without it.

At least now there’s an alternative to it that supports Matter and will do everything you want it to. There wasn’t when I bought mine. So just bite the bullet and buy that one. Don’t waste as much time as I did and don’t think that this got abandoned way back in the day just out of laziness.

And as a footnote, if anyone at Leviton would like to reach out and help with a solution to make this viable again, I’m all ears and will be happy to take it back on with some official support.