Would it do this: run a bathroom fan based on humidity level?

[johnathan398 (Johnathan Fullman)]

@Dasler

Could it activate the bathroom exhaust fan after the humidity sensor hit a target % let say 55% humidity and run until the humidity go down to 45%.

I wrote a smarp app to handle this. It calculates the humidity change rate and uses that to activate and de-activate the bathroom fan. I found that using that is more effective in practice than having a set threshold.
Smart Humidity Fan