He’s constructed an Arduino keypad door lock — without using any proper fastening hardware! The entire build is made out of scrap parts he had lying around: some DVD’s, a bit of wood ...

If you want to add a keypad to your Arduino project, the options are pretty limited. There’s that red and blue 4×4 membrane we’ve all seen in password-protected door lock projects ...

The lock offers a wide array of customizations that others don’t have, such as volume control, language options, and a feature that automatically locks the door ... keypad is difficult to use ...