A while ago, I joined a discussion about controlling a bathroom fan (not a whole house ventilation), by means of a single humidity sensor. This inspired me to clean up my running code and share it with you.   VERY IMPORTANT! Only use this script with an Aeotec MultiSensor 6 aka MS6 aka "the square one". I have extensively tested several "MultiSensors" and only MS6 meets its specifications! The older, round MultiSensor and MultiSensor Gen5 have very bad temperature & humidity r