Parts List:
https://docs.google.com/document/d/1cbc4Nu89sZjFRnGcfwAxT1hzgDTiMCTcZCk1xu8sQU8/edit?usp=sharing
Locked is a device that measures the distance from a sensor to the locked position of a deadbolt and informs you if your door is secured. It is a cheap and fast way to set up a customizable lock detection system to old doors and buildings.
