Password Based Door Lock System Using Arduino Circuit Diagram

Here an at89c52 microcontroller is used and it is an 8 bit controller.

Password based door lock system using arduino circuit diagram.

Here we are using 4x4 keypad which contains 16 key. Combination locks have been there for decades and many products such as briefcase doors are protected by them. If you want to learn how to make a schematic and pcb then watch my tutorial given below. After that turn on the bluetooth of your phone and then pair the bluetooth module with your phone.

There is keypad module for arduino that can help us to set combination password for various things you may also use rfid cards to provide access and in this tutorial i am going to explain how you can make push button combination lock. The schematic diagram of the electronic door lock system is shown in fig. The simply compile it then finally upload it to the atmega328 microcontroller. Arduino software constantly scans the keypad to see if a button is pressed.

Password based door lock system using 8051 microcontroller circuit design uses five major components a microcontroller an l293d motor driver a dc motor a 4 4 matrix keypad and a 16 2 lcd. Transistor password based door lock system using 8051 microcontroller august 21st 2017 password based door lock system using 8051 microcontroller is a simple project where a password based circuit breaker project circuit diagram and working electronics engineering projects microcontroller based may 8th 2018 electronics. You can simply copy paste the code using arduino ide. Arduino receives parallel data from the keypad.

In this circuit we have used multiplexing technique to interface keypad for input the password in the system. This is the complete circuit diagram of the password protected door lock security system designed in cadesoft eagle 9 1 0 version. If we want to use 16 keys then we need 16 pin for connection to arduino but in multiplexing technique we need to use only 8 pin for interfacing 16 keys. Password based door lock system using arduino simulino uno schematic diagram read nfc ring lock box using arduino the key pad library for the arduino uno available in this linkkeypad this library is setup to do every function for the keypad.

The code for password based door lock security system using arduino keypad is given below. Upon receiving a valid code input digital pin d4 goes high and fires up the solenoid lock for five seconds. Testing the fingerprint door lock using arduino project.