Some further information in this old thread
Great deal… I don’t like that the display can’t be set to “always visible”, though.
I glance at my Thermostat all the time, otherwise I can’t tell if I’m cold or not.
I see what you did there
I just ask Alexa how I’m feeling
You guys are hilarious!!
Anyway to set display always on?
So got reply from support. Need c wire connection for display to stay lit.
Makes sense, else you’d be blowing through batteries.
That’s actually somewhat good news… I thought that there was no option to “stay lit”.
I don’t have a C-Wire, though, in theory it isn’t too hard to fake one using a wall transformer; presuming you have an outlet nearby (hmmm… I do), and can run the low voltage wire up to the Pearl…
Fortunately I had extra wires on the bundle that ran between hvac circuit and thermostat. Just had to connect to C pin on both end. Staying lit is important to me as I dont know how hot/cold it is unless I check the current temp
So far it is working perfectly automating through smarthings. If we can check how long the heat or cold ran then it would have been awesome. But I think I am asking more.