Password Based Door Lock System Using Pic16f877a

Circuit breakers are electromechanical devices used in the power system to connect or disconnect the power flow at the generator substation or load location.

Password based door lock system using pic16f877a.

Electronic code locking system is extremely useful in protecting our precious possessions and can be installed anywhere with bit of engineering in it. Razib shahadat 147 664 views. This article describes the making of an electronic code lock using the 16f877a microcontroller. Here i am going to explain you a simple password based circuit breaker project using pic microcontroller.

The major components include a keypad lcd and the controller pic16f877a. 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. The mcu is interfaced with a 4 4 matrix keypad and a 16 2 lcd to form the user interface. The code for password based door lock security system using arduino keypad is given below.

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. Same logic is used to rotate motor anticlockwise. We are widely familiar with the password based e locks and might have installed in our house.

The job of the mcu in this project is to receive signals from the input device keypad and take corresponding actions. Password based door lock system using arduino and keypad duration. If both strings matches then it will send signal to l293d ic and rotates motor in clock wise direction. Circuit diagram of electronics lock is shown below.

Digital door lock using pic16f877a with 16x2 lcd and keypad with dc motor. And then its asks to close the door by pressing digit one. If the person attempting to open the door enters a wrong password then the microcontroller switches the alarm for further course of action. The simply compile it then finally upload it to the atmega328 microcontroller.

You can simply copy paste the code using arduino ide. The user can also set his password to ensure better protection. Programming the pic16f84a in c with mplab x duration. Pic16f877a microcontroller reads these inputs and compared it with a already stored password.

This system allows the user to unlock the device with a password. This is an advanced door opening system compared to the above system. Atmega based garage door opening. Home microcontroller projects.

Default password 1234 is stored in eeprom of pic microcontroller. In this way a simple door lock system can be implemented with the use of a microcontroller.