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A comment on Airbnb's preferred smart lock vendor accidentally bricks 500 door-locks. Parent comment

Re:Airbnb's preferred smart lock vendor accidentally bricks ... by PhantomGremlin on Monday August 14, 2017 @07:24PM (#15013937)
I'm not too keen on wiring mains power up to something connected to my door handle.

This is a solved problem: https://en.wikipedia.org/wiki/Isolation_transformer

[ Parent | on HN ]
Re:Airbnb's preferred smart lock vendor accidentally bricks ... by busterarm on Monday August 14, 2017 @08:18PM (#15014278)
They can fail though (and I've seen it happen, overload, excessive moisture, etc.,). How do you know this before you touch the doorknob and get the (possibly final) zap of your life?

If the failure mode is potentially "you die", then we're probably better off low tech.

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