Thanks Brian. You said “if you are going to the Total Comfort website to control your thermostat right now, in theory the device type that interfaces with that would work”. What “device type” specifically are you referring to? Indeed I can use the iOS app or website to control the minisplit. So now I’m just trying to figure out how to be able to use a Z-wave device to do the same, instead of using the iOS app or website… ?
Read and choose the most popular device handler.
Good luck!
Paul - I have the Mr. Slim minisplit which uses the same Mitsubishi MHK1 that you have. Were you able to get your system working with Redlink? I think my idea is that same as what you wanted to do back in November - basically just have a Z-wave thermostat that talks to ST and have ST talk to the My Total Comfort app, thereby enable us to indirectly control the HVAC system. What did you wind up trying and is there a winning formula? Thanks!
Fwiw, Honeywell has announced their own support for the ST hub. I’ve got mine configured to control all four of my Redlink-connected thermostats. Seems to work, at least as effectively as the community-based driver.
Where do you find this?
A downside, sort of, is that Honeywell’s website won’t allow more than one app to register itself. Which is odd. The community driver here doesn’t appear to have that problem, so for now I’m not sure which to use. I have more than one kind of automation system here, and I don’t want to get into dueling over limitations.
I’ll say this, however, adding interface to thermostats should be done carefully. Something in the mix decided the temps were wildly inaccurate and the system got set to dramatically incorrect values. Not sure which, as I just took everything out of the mix. I’ll revisit this at a later date.
Can you post link for the Honeywell device handler?
I found the ‘official one’ within the app itself, buried in with other thermostats. The other one I found here in the forums, I can’t recall which thread, sorry.
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Are you able to post it / put on github?
I setup my 3 Redlink thermostats. 2: VisionPRO 8000 and 1 ComfortNet CTK03 (Its a Honeywell IAQ prestige 2.0 with a interface to communicate with my central AC)
Marketplace->Climate Control->Thermostats->Honeywell->VisionPro WiFi-> Connect Now-> Log In.
One you login using your Total Connect Comfort credentials, your Redlink connected thermostats will be listed. You can select them and connect them to your hub.
I had to disconnect two of mine from the WeatherBug Home app.
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samsung’s support faq still says ‘All Wi-Fi are supported. RedLINK is also supported when coupled with a RedLINK Internet Gateway’; however, from this thread, if i am understanding correctly, i can have ST communicate DIRECTLY with ST sans the RedLINK Internet Gateway. is this correct?
If you’re using thermostats that require a redlink gateway then you need a redlink gateway. I have four of them that speak RF to the Redlink, up to the cloud and ST connects to them there.
As for wifi direct units, then you wouldn’t need a Redlink for them.
I think you’re still talking to the Honeywell cloud though, with or without the Redlink.
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Hi… It’s really good to know that mhk1 stats works with ST. Can you confirm which thermostat, within ST app, did you choose to link the ST with Mhk1? Thanks
Ok, so after talking to honeywell support if you have the MFH1 thermostats hooked to the mitsubishi heads, after you connect them to your honeywell redlink internet gateway and to the total connect comfort website, you can then add it to smartthings. You add a device and select thermostat then the honeywell wi-fi focuspro 6000 thermostat. Once you have selected that it will ask for your credentials to the total connect comfort website. Then you can select which thermostats to add. Hope this helps anyone trying to figure this out.
Another approach to this is the PAC-WHS01WF-E, which lets you plug WiFi directly into the Mitsubishi indoor unit. You then use Kumo Cloud to control the HVAC via your phone.
Here’s a thread about attempting a ST integration for Kumo Cloud; no real progress: Kumo Cloud (Mitsubishi Electric Heat/Air)
And I’m interested in the ESP8266 approach mentioned later in that thread.
Hi, having mitsubishi units controlled by ST through mhk1 and redlink gateway is great but it could be nice if we can control the fan speed within ST routines. Has anyone succeed in doing this? Thank you
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Anyone know if this has been accomplished? I’m in the same boat. Insane that the thermostat provides this but the redlink/totalconnect UI omits it.
edit: to be clear, I’m responding to Mohamed_Berrada above.
I just talked to Honeywell’s support about this and they said that fan speed is not supported by Total Connect at this time. The person said they would pass my suggestion to add it along to the development team. I guess we’ll see what happens… I’m not expecting much because that app is pretty 
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“Pass it along” is tech support code for “yeah, whatever loser” so you can see how much hope I have. I don’t know how many devices Total Connect works with but there isn’t any other option unless someone wants to take on some serious coding. They did come out with a terrible Echo/Alexa skill. I haven’t been able to get the skill to do anything, and I’m the IT guy for my company…
So, did anyone end up getting the Mitsubishi units working over RedLink connect? I can connect to it using the official Honeywell integration and the device that gets created partially works. I can see the current status, and changes get pulled in (it seems to poll every 5 minutes). However if I try to change the temperature or take any actions, it fails. When that happens, in the logs I see:
4:42:34 PM: error Error updateSetpoints, restoring to state.oldHeatingSetpoint:null, state.oldCoolingSetpoint:null
4:42:34 PM: debug updateSetpoints: parentBusy:false, currentMode:null, data:[targetCoolingSetpoint:75, targetHeatingSetpoint:56]
And each time it polls for the latest values, I see this error:
4:43:45 PM: error java.lang.NullPointerException: Cannot invoke method toInteger() on null object