different temperature sources for A/C
should be really useful integrating MQTT on the plugin.
for example, I've a MQTT sensor that gives temperature in json format, a thing like that:

{"Time":"2018-03-24T17:24:47","AM2301":{"Temperature":18.5,"Humidity":74.5},"TempUnit":"C"}

so, will be useful having a MQTT topic variable to be configured, a different data source as "temperatureFilePath" does with data on file.