Password Based Door Lock System Using Arduino Simulino Uno

A 4 4 or 4 3 keypad can be used to enter the desired password. 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. The code for password based door lock security system using arduino keypad is given below.

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The simply compile it then finally upload it to the atmega328 microcontroller.

Password based door lock system using arduino simulino uno.

In this project we will make a digital door lock system with keypad using arduino uno. After 5 seconds the electrical door opener will be automatically be locked. The below table shows how to connect your arduino with keypad. It was an interesting project which required beginner s level skill in programming and very easy to connect circuit.

Connect your hardware as shown in circuit diagram above and now upload hex file generated from below code to the arduino uno board. Const byte rows 4. By using this system you will be able to unlock a door for 5 seconds. Arduino controls the complete processes like taking password form keypad module comparing passwords driving buzzer rotating servo motor and sending status to lcd display.

The password based door lock system allows only authorized persons to access the restricted areas. Just thought of making a password based door lock system in which you can enter the password via the keypad. This is a door lock security system made with arduino. 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.

You can simply copy paste the code using arduino ide. Circuit of this project is very simple which contains arduino keypad module buzzer servo motor and lcd. 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. Download the library for keypad h from below.

It will open your door only when the right password is entered and it will start beeping when a wrong password is entered. The entire project is controlled by using the arduino. As thefts are increasing day by day security is becoming a major concern nowadays. We need a keypad for password input and manually lock our customized door locker.

About the 4 4 keypad. So a digital code lock can secure your home or locker easily. It will open your door only when the right password is entered.

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