Smart door lock system with random-touch numpad

Abstract

This study presents the design and creation of smart door lock system with random- touch numpad. The aim of the project is to increase the door security. The developed system can be separated into two parts, i.e., door lock system and Chatbot system. The door lock system is operated by microcontroller to control the solenoid through the electric relay module and to notify the door status through Line application. The Chatbot system is developed for Line application. It can be used to change and retrieve the door password.