Password Door Lock System

The password based door lock system allows only authorized persons to access the restricted areas.

Password door lock system.

A 4 4 or 4 3 keypad can be used to enter the desired password. Then display the message enter password on lcd. Password protected door locking system step 1. Our digital code lock project is a simple electronic number lock system or an electronic combination lock using 8051 which has a preset 5 digit password stored inside the program the system collects 5 digit user input compares the user input with the preset password inside program and if the user input and stored password matches access will be granted by opening the door with the help of relay for a few seconds and closing it automatically after stipulated time.

Now read the five digit password from the user. About the 4 4 keypad. Compare the entered password with the. Also declare port2 to.

Most of the electrical components mentioned above can be found in evive iot kit. We are using it. Password based door lock system algorithm initially declare the port1 to lcd data pins and control pins rs and e to p3 0 and p3 2.