03-08-2013, 02:59 PM
SYSTEM DESIGN USING MICROCONTROLLER
AIM:
To Design a microcontroller based system for simple applications like security
systems combination lock etc.
PROCEDURE:
1. Read number of bytes in the password
2. Initialize the password
3. Initialize the Keyboard Display IC (8279) to get key and Display
4. Blank the display
5. Read the key from user
6. Compare with the initialized password
7. If it is not equal, Display ‘E’ to indicate Error.
8. Repeat the steps 6 and 7 to read next key
9. If entered password equal to initialized password, Display ‘O’ to indicate open.
RESULT:
Thus the program for security lock system was executed