Implementation of a Microcontroller-based Home Security Locking System

The safety and security features of home-installed door lock systems are becoming very important in our society. With the increase in criminal cases involving robbery, the idea emerged to design and build a more secure electronic door lock system. This paper will feature a keyless door lock system that can be built at a low cost. In this project, a servo motor is used as a door lock on which it will rotate based on the level of the angle created by the code command. The user must enter the password code using the keyboard to unlock the door. Users can also open the door from inside the house using a touch sensor. A buzzer is included in the system as an alarm to warn unauthorized intruders. While the use of the GSM module allows users to get a message alert on their phone whenever an incorrect password is detected by the door lock system. The prototype system is built based on the planned design. Every important feature of this system has been tested by making tests to confirm that its operation is running as expected. Overall, the results and analysis have confirmed the ability of each system component as well as the entire prototype system to function properly and meet the requirements as specified.