IMPLEMENTATION OF AN IOT-BASED LABORATORY DOOR ACCESS CONTROL SYSTEM USING AN ESP32 MICROCONTROLLER

Abstract

Computer laboratories in universities require a reliable security system because they store high-value equipment. The use of conventional physical keys is considered ineffective due to the risk of loss, duplication, and limited real-time monitoring. This research develops an Internet of Things (IoT)-based laboratory door security system using an ESP32 microcontroller, a reed switch sensor as a door status detector, a solenoid door lock as an automatic lock, and a web interface as a control and monitoring medium. The system was designed through stages of literature study, hardware and software design, and prototype implementation. This system is integrated with a room reservation feature, so that door access is only granted to users with valid and active reservations. Verification is carried out automatically through a database and sent to the ESP32 to unlock the door. The test results show that the system is able to function properly, providing automatic access control and displaying the door status in real time. This system is considered effective as a modern laboratory door security solution in higher education environments