Desenvolvimento de um Aplicativo para Smartphone utilizando o Node-RED para o Protocolo MQTT Aplicado numa Bancada Eletropneumática

Abstract

The advance of technology today has become a challenge for mechatronics engineers, as IoT, Industry 4.0, MQTT, Node-RED and other emerging technologies force them to be increasingly up-to-date. This work aims to develop a WEB application using the Node-RED tool to control an electropneumatic workbench via the MQTT communication protocol. The solution designed for this work was divided into two solutions where one used an ESP32 board to control a 5/2 valve with a simple solenoid and spring return and end-of-travel sensors and the other solution aimed to use ESP32 boards specifically to control the valve and another to collect the data sent by the sensors. The broker server used in this work is hosted in a cloud external to the Federal University of Uberlandia network, making it necessary to traffic information via the internet.