[Andrea] just sent us this great student hack he made for his room. He’s constructed an Arduino keypad door lock — without using any proper fastening hardware! The entire build is made … ...

These include the stepper motor that actuates the deadbolt, a switch for manual operation, an Arduino, and a motor driver board. He got really creative with the keypad.

The door stays locked at all times, and punching in the right keycode just turns the handle from the inside. It's an pretty slick way to work around dorm rules, as well as making a system that can ...

The best keypad door locks: Reviews & Recommendations Why a keypad door lock? We asked Erik Glassen, senior manager of brand marketing at Spectrum Brands, just that.

The smart lock leader focused on price and ease of use to deliver this keypad deadbolt, which doesn't offer wireless connectivity.