Secret Hacks

Secret Knock Detecting Door Lock

Secret Knock Detecting Door Lock

Here’s a fantastic project using an arduino, a motor, and a piezo sensor which allows you to both record and detect knocking patterns to unlock a door.  The video below does a fantastic job of demonstrating how it works: It’s completely mobile...
DIY Rotating Bookshelves, Staircases and Trap Doors

DIY Rotating Bookshelves, Staircases and Trap Doors

Man makes trap door bookshelf – And teaches you how! Ever seen those hidden bookshelves in the Munsters or Scooby Doo? Always wanted one of your own? Hell yeah! Well now you can with these fantastic projects that teach you how to make your own...
Super Secret Safe inside a Full Pop bottle

Super Secret Safe inside a Full Pop bottle

Using simple techniques, you can create a hidden safe inside what appears to be a full bottle of soda. Using two bottles, glue, and a bit of styrofoam, you too can easily recreate this simple project. An outstanding way to keep your goods safe....