If the password is wrong then door would remain l ock ed enyi.
Password based door lock system block diagram.
This system demonstrates a password based door lock system using arduino uno wherein once the correct code or password is entered the door is opened and the concerned person is allowed access to the secured area.
Block diagram of password based door locking system a.
After extending the unlocking process for a fixed period of time the relay energizes and then the door gets locked again.
In this password based door locking system project a keypad is arranged to open and close the door.
The keypad is an input device that helps to enter a code to open the door.
This block gives the entered code signals to the microcontroller.
If any unauthorized person enters a wrong password in an attempt to open the door then this system immediately switches a buzzer.
Password based door locking system the operation of this system can be described by the above block diagram which consists of blocks as keypad a buzzer an lcd a motor driver and a stepper motor.
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.
Password based door lock system using 8051 microcontroller is a simple project where a secure password will act as a door unlocking system.
This is the cpu central processing unit of our project.
Reading the digital input from keypad.
Traditional lock systems using mechanical lock and key mechanism are being replaced by new advanced techniques of locking system.
The various functions of microcontroller are like.