Human Machine Interface Berbasis MQTT untuk Monitoring dan Kontrol Perangkat IoT dalam Implementasi Smarthome

Abstract

The development of Internet of Things (IoT) technology enables real-time monitoring and control of devices through efficient internet connectivity. This study aims to design and implement an IoT device monitoring and control system integrated with a Human Machine Interface (HMI) based on MQTT (Message Queuing Telemetry Transport) communication. The system consists of six IoT devices, including water level monitoring, mini weather station, temperature and humidity monitoring, air quality monitoring, motion detector, and power consumption monitoring. Each device uses an ESP32 microcontroller as the main control and an MQTT broker as the data communication link. Based on the MQTT broker performance analysis, the average message load rate was 6.0–6.2 msg/s and the average delivery time was 1000 ms, indicating that the MQTT protocol has high efficiency and low latency in data transmission. This system provides the benefits of easy centralized monitoring and control of devices and can be applied to smarthome implementations and medium-scale IoT systems. The success rate of this task in monitoring and controlling devices reached 100%, as demonstrated by the ability of the entire system to operate according to its designed functions. All IoT devices were able to send and receive data through stable MQTT communication, as well as display monitoring information and perform control functions in real time on the HMI interface..