Amazing Door Lock! diy Making Secret Door Lock with Nut Bolt I Coded Door Lock ...

College students have returned in droves to dorms and apartments at campuses everywhere. So this is the time of year we usually start seeing some coded entry hacks. [Charmonkey] recently took on the ...

The main principle of this circuit is that the door lock opens only when the buttons in series are pressed at a time. We can use it to lock the doors and for other security purposes. This article ...

To open a door fitted with the latest U.S. government-certified lock from high-end Swiss lock manufacturer Kaba, an employee must both enter a code up to eight digits long, then swipe a unique ...

Putting a custom designed electronic lock on your space seems like a geek right of passage. For our latest workspace, we decided to skip the boring numbered keypad and build a custom RGB backlit ...