Password Door Lock System Using Pic

This is also such an electronic locking system in which pic16f887a microcontroller plays the role of the central processing unit.

Password door lock system using pic.

After taking inputs from a user these inputs are stored in array. If password is incorrect it will halt user and beeps buzzer and decrements no of attempts by one. After that microcontroller compares these arrays values with already stored valued of a default password. Here at89c52 microcontroller is used and it is an 8 bit controller.

You just need to change it in simulation and in code settings. The mcu is interfaced with a 4 4 matrix keypad and a 16 2 lcd to form the user interface. 2 or 3 different types of password. And then its asks to close the door by pressing digit one.

If voltage fluctuates between minimum or maximum limit this device triggers the relay to isolate devices from main ac power supply. Electronic combination lock pic mircocontroller electronic code locking system is extremely useful in protecting our precious possessions and can be installed anywhere with bit of engineering in it. You can also use other pic microcontrollers like pic16f877a etc. 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.

This controller requires a supply voltage of 5v dc. Same logic is used to rotate motor anticlockwise. You can use any other pic microcontroller if you want. Electronic code lock system circuit design.

Like main password guests password public password to open the door closed the door. Password based door lock using pic microcontroller https elektronicsgarage wordpress c. If no of attempt is less then 0 it will block the user to enter password. Default password 1234 is stored in eeprom of pic microcontroller.

The pic microocntroller used in this electronic door locks project is pic18f4520. I need to multiple password system door lock. If both the values are equal microcontroller opens the electronic lock.