Weird Results for a variable named "T9"

[FiDel]

Actually, it will be closer to 60 sensors:

Multiple DS18B20 with Photon

OK, to get an idea of the final goal, you can have a look here I plan to use one Photon to control the HVAC system for both homes. It will not only control the heating system but also the ventilation system and sanitary water distribution. For the ventilation system, I will use DHT22 temp/hum sensors, and that’s already clear for me and tested. Now, these DS18B20 sensors will be only used for measuring water temperatures in boilers (stratification) and pipes, in combination with the pumps an…