Having a secret knock to get let into a locked room is simply cool. It’s a tradition used in secret societies for hundreds, if not thousands of years.
An Indiegogo campaign from a pair of college students aims to bring the tradition of secret knocks to the world for anyone to use with their idea for a new product, “Knock Knock Lock.”
Knock Knock Lock is a key dispenser, essentially. It involves a small computer that attaches to a door and monitors for knocking noises. If a knocking pattern matches the pattern of a knock-sequence that has been programmed into the system, the computer will instruct a tray at the bottom of the door to release a key that it holds inside. The knocker would then be able to take the key and unlock the door.
While this might not be the most secure method of preventing entry into a certain area, it could be among the most fun of ways to unlock said locked doors. On their Indiegogo campaign, where they are seeking to raise $7,500 over the next 35 days, the inventors presented the use case of a college dorm where someone went to a communal shower but forgot to take a key, with the Knock Knock Lock being the saving grace of the would-be locked-out roommate.
The first 50 people to fund Knock Knock Lock at the level of $35 would get in on the inventors’ early bird special and get their own version of the device after the inventors refine the design and release it to the public. As of the writing of this blog post, however, Knock Knock Lock had yet to receive any funding.