MQTT ENABLED DEVICE FOR INDUSTRIAL ENVIRONMENT AND SMART CITY

An enormous range of industries is covered by the Industrial Internet of Things (IIoT). IIoT covers any device or system with sensors connected to a GSM/GPRS module or network and gathering/sharing data. Any device in the industry can consist of a low-cost sensor connected to a network, allowing them to be monitored and tracked, sharing data on their status, and communicating with other devices. It means identifying possible problems fast, which leads to cost-effective processes. It can be scaled from a single device up to massive platform distribution of embedded technologies and cloud systems connected in real-time. With all that, numerous communication protocols allow devices and servers to communicate with each other in a more interconnected way. This research provides using the MQTT protocol for communication between the GSM/GPRS module and the cloud system. The system is made of PIC18F46K22 microcontroller, GSM/GPRS module RS485 serial communication, and DHT11 temperature sensor. The data are being sent to the ThingSpeak server and environmental parameters are being measured for a certain period of time.