Sistema de controle remoto de dispositivos de hardware utilizando Broker MQTT

Abstract

The prototyping of systems based on MQTT communication still presents limitations related to ease of use, implementation costs, and the need for rapid results in testing environments. A gap is observed between the availability of accessible tools for experimentation and the complexity of current automation systems, which hinders the agile validation of loT solutions. In this con- text, this work proposes a methodology for developing a remote control system for hardware devices using the MQTT protocol, aiming to provide an efficient, low-cost, and easily integrable environment for rapid prototyping. This research is characterized as applied and developmental, with the objective of enabling the control of physical devices, such as lamps and motors, through a remotely accessible web application. The methodological approach adopted is iterative and incremental, emphasizing continuous prototyping to ensure progressive validation and flexibility throughout the system development process. The proposed architecture is centralized and mo- dular, integrating a Mobile Web Interface, an MQTT broker (Eclipse Mosquitto), and hardware modules built using ESP32 microcontrollers and their respective actuators. The development process includes implementing the embedded control logic, configuring and securing the MQTT broker, establishing communication between the modules, and designing a responsive interface that communicates via Secure WebSockets (WSS). The expected results focus on demonstrating the technical feasibility of the solution and the robustness of MQTT communication, highlighting its usefulness as a practical tool to support rapid prototyping in lot projects.