Automated Temperature Control System for Chemistry Laboratory using MQTT IoT

The traditional chemistry laboratory in most tertiary institutions has failed to look into the present chemical substance, its temperature, and reactions to certain optimal scales. The temperature hazards of chemicals in many chemistry or industrial sectors has gone out of measure. To this effect, most chemical substances in the laboratory due to fluctuation in temperature sometimes causes laboratory hazards. The existing system has issues ranging from reporting style, the temperature of the chemical substance either in use or not in use, and error based on human system. Chemical substances in the laboratories have imposed tremendous hazards on lives and properties. In this paper, we built an Message Queuing Telemetry Transport (MQTT) broker to monitor, report, and control the influence of temperature of a chemical substance in the laboratory to avoid hazards and ensure safety. The platform employed both hardware devices that can read the change in dynamic temperature and software program that presents the temperature to both the mobile platform and desktop system. MCUESP۸۲۶۶ node, temperature sensor DHT۱۱/ ۲۲ and Python ۳ flask framework were employed. The system is a cloud-based system displays the temperature of a chemical substance in a real-time manner. Temperature laboratory hazards are avoided, controlled, and reduced to its barest minimum with this system. The laboratory system of testing the rate of reaction of chemical, relative to the temperature range, or the self-reacting chemical substances at particular room temperature is the main focus of this paper/ article. The system auto-detects the regular change in temperature reading of a chemical substance in the laboratory.

کلیدواژه ها:

Node MCU ESP۸۲۶۶ ، DHT۱۱/ LED Resistor ، MQTT ، IoTs ، Python flask