With a peep hole in the door and the right group of friends you could have a knocker-operated door unlocker.Perhaps more fun as well, under the proper circumstances.
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ORyou could rig a camera to the peep hole with some face recognizing software that would trigger the unlocker...
Have you ever seen face off?
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With a peep hole in the door and the right group of friends you could have a knocker-operated door unlocker.
Perhaps more fun as well, under the proper circumstances.
OR
you could rig a camera to the peep hole with some face recognizing software that would trigger the unlocker...
Have you ever seen face off?