Whenever any key is pressed on the keypad the software program in the mcu identifies the pressed key and accordingly turns on or turns off the appliance.
Password based door lock system using pic16f877a.
In this way a simple door lock system can be implemented with the use of a microcontroller.
The simply compile it then finally upload it to the atmega328 microcontroller.
You can simply copy paste the code using arduino ide.
This is an advanced door opening system compared to the above system.
Same logic is used to rotate motor anticlockwise.
This system allows the user to unlock the device with a password.
And then its asks to close the door by pressing digit one.
Atmega based garage door opening.
The code for password based door lock security system using arduino keypad is given below.
Electronic code locking system is extremely useful in protecting our precious possessions and can be installed anywhere with bit of engineering in it.
This article describes the making of an electronic code lock using the 16f877a microcontroller.
Circuit diagram of electronics lock is shown below.
Here i am going to explain you a simple password based circuit breaker project using pic microcontroller.
If both strings matches then it will send signal to l293d ic and rotates motor in clock wise direction.
Razib shahadat 147 664 views.
If the person attempting to open the door enters a wrong password then the microcontroller switches the alarm for further course of action.
Password based door lock system using arduino and keypad duration.
The major components include a keypad lcd and the controller pic16f877a.
Pic16f877a microcontroller reads these inputs and compared it with a already stored password.
We are widely familiar with the password based e locks and might have installed in our house.
Home microcontroller projects.
This is also such an electronic locking system in which pic16f887a microcontroller plays the role of the central processing unit.
The user can also set his password to ensure better protection.
Programming the pic16f84a in c with mplab x duration.
Electronic code locking system using pic 16f877 mircocontroller.
The mcu is interfaced with a 4 4 matrix keypad and a 16 2 lcd to form the user interface.
This project is much similar to my previous one password based door locking system.
Electronic lock takes inputs from the user with the help of 4x4 keypad.
Digital door lock using pic16f877a with 16x2 lcd and keypad with dc motor.
The password is entered by making use of a keypad.