Shower detection (depends on humidity)

[Kees_van_Gelder]

I actually have done something like that. Works perfectly

[SOLVED] I like to pick some brains for a 'teenage shower' solution

I know this is maybe not fully Openhab related and I may even be in the wrong category, if so I deeply apologise, but I would like to get some suggestions for a ‘problem’ I am trying to solve (with openhab). i have a teenage niece who likes to take long showers. Her father (my bro) whose house I outfitted with a simple openhab system asked me if I could make something that would shut off the warm water to the shower after say 3 to 5 minutes and then keep the water shut off for about 5 minutes. …