I get I'm straying here from the "Non-Battery powered...", but I felt obligated to post this as I mentioned it earlier in the thread. I was able to recalibrate the radio signal and get my tags working again.
Here is a graph of an uncalibrated WirelessTag along with my Thermostat. There is a 2-3 minute delay as the path is WirelessTag -> Cloud -> SmartThings Hub -> Hublink -> HE. Still it's pretty impressive. It seems to be tracking within .4 of a degree F and changes within 3-4 minutes of the thermostat. I can tighten up the delay but that will hammer the CR2034 battery in the tag. If enough people get interested, maybe it'll help motivate a driver rewrite to work directly with HE.
The green line is my thermostat that only changes in .5 degree increments. The orange line is my Guest Room Wirelesstag.
