this post was submitted on 19 Feb 2026
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I've got a led strip on my toilet door. It turns red when someone is inside (mesured by the wasp in a box principle.
Suggestion for enhancement: Have the LEDs start out yellow and after a couple of minutes turn them red because entry has likely become hazardous.
Or put a mic in the bathroom and make the LEDs yellow for pee sounds and red for fart sounds.
I'm kidding but I actually think this would be fun, but you'd need a way to differentiate sounds.