This is an amazing project that uses a Firgelli linear actuator and an Arduino to open and close a secret door either by pulling on a book or using a secret knock!
Basically the bookcase slides into a false wall that was built to create a hidden space in an attic. The linear actuator pushes and pulls the bookcase in and out and is activated by the Arduino. A microswitch was wired to the Arduino that tells the actuator to open or close when the secret book is pulled. The Arduino was also programmed with a secret knock detection algorithm so that the door can be opened with a secret knock. Take a look at this video to see the door in action.
Firgelli Automations is one of the original linear actuator and TV Lift manufacturers. Since 2004 we have been developing our own line of Linear Actuators, Track actuators, TV Lifts, Desk Lifts, and many other Motion control products to support many different industries.
Our products have been used in just about every application you can imagine from home automation to space exploration. Firgelli Automations is on the leading edge of Linear Actuator research and development, searching for innovative solutions to linear motion control.
These Actuators come with force sensing built in, this means if they bump into something or when they get to the end of their stroke they automatically stop moving until you either change direction or remove the load. This is a great new safety mechanism and offers many applications from Skylight Window openers to Automotive motion control where space is tight. These Actuator are compact in size and use a very high precision DC motor that are both ultra quiet and powerful for its size. Our hi...