- Don’t Miss: Our collection of DIY Security projects
We’ve seen a similar example of an Arduino keypad security system which used servo motors to operate the bolt. Here’s a newer version of the project:
It’s based on the Arduino and uses a stepper motor combined with bicycle gears to unlock the door. Additionally, it saves power since the lock gets its power only when it’s being used. The whole system also prevents the door from being opened normally. It’s not too aesthetically pleasing, but hey, it’s cool and unique. Check out the YouTube channel of the builder.