Rancang Bangun Pintu Pintar Berbasis Internet Of Things Menggunakan Microkontroler Esp8266 Dengan Radio Frequency Identification

Abstract

This research discusses the design of an automatic door security system that is operated using Radio Frequency Identification (RFID) technology and can be accessed via an Android application. This system is designed to replace traditional door locks by utilizing the ESP8266 microcontroller as the main controller, which processes data from RFID sensors. If a registered RFID card is attached, the microcontroller will activate the relay to open the door solenoid for five seconds, after which the door will be locked again automatically. Apart from that, this system is also equipped with notifications via the Blynk application if an unregistered card tries to enter. Tests show that this tool can function as an automatic door security system, can be controlled remotely, and provides efficient access. This research aims to analyze the work process of the RFID system in reading cards as well as designing and building an automatic security control system using RFID with the ESP8266 microcontroller, as well as knowing the characteristics of the sensor regarding sensitivity and response time. Test results show that RFID can detect cards within a distance of 0–7 cm with a response time of 1.70–2.58 seconds. Above 7 cm, the card is not readable. The voltage on the relay in the active condition is 46.08 mV, and 5.008 V when it is inactive. The system also successfully connected with the Blynk application and provided real-time notifications.