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Former Apple Engineers Build a $700 Digital Door Lock
- dfabulich 9y agoHow do all of these keyless digital door locks get power? Do you get locked out of your house when they run out of juice?
- wmf 9y agoThey have batteries. The Otto apparently has a main battery and backup battery although I don't understand the benefit of such an arrangement. Some smart locks can be operated manually when they run out of power. I once read about an electronic safe that generated power from the user turning the knob; a clever solution.
- extrapickles 9y agoThe US government uses self powering locks where the user turning the dial provides the power for operation. See http://www.kaba-mas.com/kaba-brand/products/906098/x-10.html http://www.kaba-mas.com/kaba-brand/products/906098/x-10.html for an example of one.