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Secret Knock Detecting Door Lock

This homemade door unlocker listens for preprogrammed knocking rythems and opens the door when the "secret" knock is used.   It handles different tempos of the same rythem well, and it's easy to reprogram.
I'm totally going to install this on my clubhouse. 

Mathew Chasan- at Synapse Product Development
Title

Software Engineering Manager


Department

Employee Since

2007


Location

San Francisco - Brannan