It only opens your door when the correct password is entered. The circuit of this project is very simple which includes Arduino, keypad module, button, servo motor, and LCD.

A simple and effective security system using Arduino Uno, a 4x4 matrix keypad, and a relay-controlled electric lock. This project allows you to unlock a door using a secure PIN code entered through ...

By using open-source Arduino tools, security researchers are exposing security gaps in door-lock systems used by millions of hotels.

The security flaws on this common hotel keycard lock are nothing short of face-palmingly stupid. Look closely at the picture above. This is a hotel room door swinging open. The device he holds in h… ...

Perhaps you could create an Arduino device to lean on the door right before the Arduino device bolts the door. It's not clear if the lock unlocks the door when you close that incognito browser.

In this paper, a security device is proposed which is developed from the concept of conventional calling bell. The device analyzes the fingerprint of a person and matches it with stored fingerprint ...

After “several thousand hours of work”, F-Secure researchers created a master key that could be used to gain entry to any room in hotels using VingCard digital lock technology.