What's you project about? It consists of a small basic but efficient security system for safe locks, locks in rooms or offices

Why did you decide to make it? I needed a system for a old safe that I have, the lock does not work so I am modifying it to put this system and keep some important personal things. Soon I want to use this system to put it in the lock of my room, but instead of putting a servo I want to put an electronic lock activated by solenoid

How does it work?

The brain of this project is the Arduino Nano, the membrane keyboard will help us to enter the password and so the Arduino verifies it and if it is correct send a PWM pulse that will make the servo move to a certain number of degrees, it should be clarified that You can modify the rotation of the servo, you can also modify the name that appears on the screen and of course change the password. You can connect a bluetooth module to make the lock work with the android device.