Password Based Door Lock System Algorithm

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Password Based Door Lock System Algorithm: 1. Initially declare the PORT1 to LCD data pins and control pins to P3.5, P3.6 and P3.7 and declare PORT2 to keypad. And use P3.0 to Door motor. 2. Initially display enter password on LCD. 3. Now read the five digit password from the user, while reading each digit from the keypad display * symbol on LCD. 4. Compare the entered password with stored password. 5. If password is correct then make P3.0 pin high for some time to open the door. After that display “Door is opened” on LCD. 6. If the password is wrong then display “pwd is wrong” on LCD. 7. After some delay again ask to enter password.

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Transcript of Password Based Door Lock System Algorithm

Password Based Door Lock System Algorithm:1. Initially declare the PORT1 to LCD data pins and control pins to P3.5, P3.6 and P3.7 and declare PORT2 to keypad. And use P3.0 to Door motor.2. Initially display enter password on LCD.3. Now read the five digit password from the user, while reading each digit from the keypad display * symbol on LCD.4. Compare the entered password with stored password.5. If password is correct then make P3.0 pin high for some time to open the door. After that display Door is opened on LCD.6. If the password is wrong then display pwd is wrong on LCD.7. After some delay again ask to enter password.


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