Carrier makes a wifi device that plugs into their minisplit HVAC units (ductless AC/Heat).
The wifi device is: KSAIF0301AAA
Link to the PDF manuals about the device available here:
The air handles I have are from the 38MGR36 series Carrier units
The app is Carrier Climate, with pretty limited functionality, which is why I am thinking a smartthings integration would go really far especially with WebCORE or things like that!
Anyone know of any device handler, at least, that is able to integrate these units into SmartThings?