Problem Statement:
This project aims to create a digital door lock system that enhances security by utilizing a
keypad for PIN entry, a microcontroller for processing, an LED for access indication, and an
LCD for user interaction, ensuring that only authorized users can unlock the door.
Objective:
Develop a secure door lock system using a keypad, microcontroller, and display.

Components:
 Input Device: Keypad for PIN entry to unlock the door.
 Microcontroller: PIC microcontroller to process the keypad input.
 Actuator: LED to indicate correct or incorrect PIN entry.
 Display Device: LCD to show system messages (e.g., "Enter PIN," "Access Granted,"
"Access Denied").
Functionality:
 The system will prompt users to enter a PIN on the keypad.
 If the correct PIN is entered:
o The microcontroller will activate the LED to indicate access is granted.
o The LCD will display "Access Granted."
 If an incorrect PIN is entered:
o The system will keep the LED in an "access denied" state.
o The LCD will display "Access Denied."
 The system will use interrupts for efficient input handling and timers to reset if no
PIN is entered within a set period.
Project Deliverables:
1. Simulation: Submit a zip file containing Proteus design as well as MPlab project
2. Final Report (According to the provided template): Include algorithm description,
flowchart, Proteus design, and hardware evaluation.