Password Door Lock System Using Pic

Electronic code locking system using pic 16f877 mircocontroller.

Password door lock system using pic.

Here at89c52 microcontroller is used and it is an 8 bit controller. Password based door locking system design uses five major components a microcontroller an l293d motor driver a dc motor a 4 4 matrix keypad and an lcd. Default password 1234 is stored in eeprom of pic microcontroller. 2 or 3 different types of password.

You can also use other pic microcontrollers like pic16f877a etc. If the person attempting to open the door enters a wrong password then the microcontroller switches the alarm for further course of action. Traditional lock systems using mechanical lock and key mechanism are being replaced by new advanced techniques of locking system. Initially declare the port1 to lcd data pins and control pins rs and e to p3 0 and p3 2.

Also declare port2 to keypad. The pic microocntroller used in this electronic door locks project is pic18f4520. I need to multiple password system door lock. Atmega based garage door opening.

If both the values are equal microcontroller opens the electronic lock. Then display the message enter password on lcd. You just need to change it in simulation and in code settings. Like main password guests password public password to open the door closed the door.

After that microcontroller compares these arrays values with already stored valued of a default password. In this way a simple door lock system can be implemented with the use of a microcontroller. Also use p0 0 and p0 1 for motor driver. After taking inputs from a user these inputs are stored in array.

Now read the five digit password from the user. We are widely familiar with the password based e locks and might have installed in our house. Electronic code lock system circuit design. This is an advanced door opening system compared to the above system.

Password based door lock system using 8051 microcontroller is a simple project where a secure password will act as a door unlocking system. Electronic code locking system is extremely useful in protecting our precious possessions and can be installed anywhere with bit of engineering in it.