Password Based Door Lock System Using Arduino Circuit Diagram

In this circuit we have used multiplexing technique to interface keypad for input the password in the system.

Password based door lock system using arduino circuit diagram.

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. Password door lock security system circuit diagram. Testing the fingerprint door lock using arduino project. You can simply copy paste the code using arduino ide.

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. Password based door lock security system using arduino and keypad password based door lock security system usin. After installing the apk and connecting the hardware as per the circuit diagram connect the arduino to the laptop and upload the code remove the tx rx pins before uploading the code. This is the complete circuit diagram of the password protected door lock security system designed in cadesoft eagle 9 1 0 version.

After that turn on the bluetooth of your phone and then pair the bluetooth module with your phone. Arduino receives parallel data from the keypad. Here an at89c52 microcontroller is used and it is an 8 bit controller. Upon receiving a valid code input digital pin d4 goes high and fires up the solenoid lock for five seconds.

Here we are using 4x4 keypad which contains 16 key. The simply compile it then finally upload it to the atmega328 microcontroller. 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. Arduino software constantly scans the keypad to see if a button is pressed.

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. 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. The schematic diagram of the electronic door lock system is shown in fig.