Design and Implementation of a Customized Door Lock System for Local Needs

This paper presents a design and implementation of a customized door lock system utilizing Internet of Things (IoT) technology. The proposed system focuses on accessing the door at the ground floor from the top floor of a three- to fivestory building, which is not supported by most of the prevailing door lock systems. The idea emerged from a local survey conducted among the 72 houses in the vicinity of Bhaktapur, Nepal, which highlighted the local problem among the elderly population facing difficulty in opening the door at the ground floor while they are residing at the top floor. This research aims to provide a low-cost, affordable door lock system to solve the local issue of remotely accessing the door. The paper employs an ESP32-CAM microcontroller including a camera module and a Wi-Fi module, integrated with an RFID reader, keypad, and a relay-controlled solenoid lock providing the mechanical actuation for door locking and unlocking operations.