Microcontroller Based Keypad Operated Door System with Alarm, A Technical Approach to Improve Commercial Bank Vault Security

Abstract

Opening a lock with the use of a PIN adds more flexibility to security system. This thesis describes the design and implementation of a Microcontroller based security system for home and office devices. It provides users with an efficient and reliable security system that supports the use of an Electronic Keypad arranged to send signals to the control unit. This Control Unit either activates the Port to which the LED (the door Latch) is connected when the correct Pin is entered or activates the Port to which the Buzzer Alarm is connected when the wrong Pin is entered. The prototype of the system is successfully implemented according to the proposal giving authorized user the privilege to change the Pin at will. Overall, the design and implementation of the prototype is fully functional and user friendly.