🔐 Arduino Keypad Door Lock System 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 ...

🚪🔒 Smart Playground Door Lock — Arduino & ESP This repository contains the code for the Smart Playground Door Lock used in my graduation project. The system controls a servo motor door mechanism, ...

[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 out of ...

Today, installing a home security system is a critical study in implementing cutting-edge technology to attain this purpose. One of the most useful technologies to allow remote monitoring of various ...

What's really neat, though, is that he didn't mess with the lock mechanism in any way. The door stays locked at all times, and punching in the right keycode just turns the handle from the inside.

After testing six different models, we've found the best electronic keypad lock.