A 4 4 or 4 3 keypad can be used to enter the desired password.
Password based door locking system using arduino uno.
Password based door lock system using arduino simulino uno schematic diagram read smart phone controlled home automation using arduino the key pad library for the arduino uno available in this link keypad this library is setup to do every function for the keypad.
About the 4 4 keypad.
Password based door lock system using arduino uno is a simple project where a secure password will act as a door unlocking system.
The code for password based door lock security system using arduino keypad is given below.
The entire project is controlled by using the arduino.
You can simply copy paste the code using arduino ide.
It will open your door only when the right password is entered.
Old fashioned lock systems use mechanical locking and these can be replaced by new advanced techniques of locking systems.
Download the library for keypad h from below.
So a digital code lock can secure your home or locker easily.
The simply compile it then finally upload it to the atmega328 microcontroller.