I want to start a fan when relative humidity is lower outside than in the basement. To make this work I need to calculate the new relative humidity when the air cools down in the basement.
The formula for this is pretty advanced as you can see below. G1 to G3 is sensor values of indoor and outdoor temperatures and outdoor relative humidity.
Is it possible to create a flow for this?
I suppose I need better logic app.
https://www.w3schools.com/js/default.asp
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You can easily do this with better-logic app. I have made similar calculation to calculate the absolute humidity of outside and inside temperature, which can be compared.