Hi there.
My house tends to suffer, a bit with condensation and so I really like to try and keep it at 60% or below whenever possible.
During the winter months, I use a dehumidifier. However, when March comes round, I tend to use my windows.
I am trying to think of a clever way of using HA to prompt me to do this.
I was thinking of buying a couple of humidity sensors for inside my house and one for outside.
Would the following work?
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If the indoor sensor goes above 60, look at the outside one and if this is below the outside reading, announce for windows to be opened.
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If the internal reading goes below 60 OR if the internal is above 60 but the external is even higher, announce for windows to be closed.