@jimbolaya Or you can use https://github.com/tsathishkumar/MySController-rs A light weight controller which can be used for FOTA and act as a proxy for all other usages.

Oops. My bad. I thought I listed the sensor. I was looking at the BMP180 on the atmospheric pressure sensor build page. It looks like the BMP280 also has a +- 1 hPa absolute accuracy. Maybe I could take advantage of the better relative accuracy and sample pressure when the furnace is both running and not. The not running pressure would give me a good baseline.

Good news. Thx!