Password Based Door Lock System Using Arduino Simulino Uno

Password based door lock system using arduino simulino uno code include include initialize the library with the numbers of the interface pins liquidcrystal lcd 9 8 7 6 5 4.

Password based door lock system using arduino simulino uno.

This is a door lock security system made with arduino. By using this system you will be able to unlock a door for 5 seconds. Circuit of this project is very simple which contains arduino keypad module buzzer servo motor and lcd. The entire project is controlled by using the arduino.

Download the library for keypad h from below. You can simply copy paste the code using arduino ide. In this project we will make a digital door lock system with keypad using arduino uno. Connect your hardware as shown in circuit diagram above and now upload hex file generated from below code to the arduino uno board.

About the 4 4 keypad. It will open your door only when the right password is entered and it will start beeping when a wrong password is entered. We need a keypad for password input and manually lock our customized door locker. It consists of 16 keys soft switch 4 keys in rows r1 r2 r3 r4 and 4 keys in columns c1 c2 c3 c4 when a key pressed it establishes a connection in between the corresponding rows and columns.

In this guide i will help you to make it easily on breadboard by using the arduino uno board and i will give you some extra tips on how you can make your own arduino based custom circuit. Const byte rows 4. As thefts are increasing day by day security is becoming a major concern nowadays. So a digital code lock can secure your home or locker easily.

The below table shows how to connect your arduino with keypad. After 5 seconds the electrical door opener will be automatically be locked. Just thought of making a password based door lock system in which you can enter the password via the keypad. The simply compile it then finally upload it to the atmega328 microcontroller.

It was an interesting project which required beginner s level skill in programming and very easy to connect circuit. The password based door lock system allows only authorized persons to access the restricted areas. Arduino controls the complete processes like taking password form keypad module comparing passwords driving buzzer rotating servo motor and sending status to lcd display.