this post was submitted on 02 Apr 2026
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What's the best way to detect when I'm taking a shower? (lemmy.world)
submitted 3 days ago* (last edited 3 days ago) by batshit@lemmy.world to c/homeassistant@lemmy.world
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I would like to turn on mood lighting automatically when I'm taking a shower, what's the best way to detect that?

  • I've considered humidity sensors, but that will take a while to kick in and not immediately when the shower starts.
  • I've also considered a water leak sensor but those are not meant to be trigger every day for a long time like 10-15 minutes. That would kill the battery, right?
  • Smart valves can kind of work, but it feels like overkill because I don't care about the valve functionality.

I would prefer the solution to be battery powered (don't want to be messing with too many cables around a shower), but I can't seem to find one.

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[–] dgriffith@aussie.zone 5 points 3 days ago

I would put a temperature sensor on the line feeding to your shower to trigger on a temperature rise, but it all depends whether it's accessible somewhere. Setting your trigger to something like 33 degrees would mean it only triggers on warm showers, cold showers you're on your own.