Analysis Of The MQTT Protocol On Hydroponic System Based OnInternet Of Things And Antares Platform.

The hydroponic system is a method of growing plants without using soil but using water. Even without soil, plants can grow well because the essential nutrients provided through the nutrient solution (AB Mix) are sufficient. Nutrients in a hydroponic system needs to be monitored regularly so that plants can grow optimally and not lack or excess of nutrients. This research proposed a hydroponic monitoring system that can monitor the condition of hydroponic nutrients remotely in real time using MQTT protocol and Antares platform. The sensors that will be used are Total Dissolved Solid (TDS) sensor to determine the level of nutrients in the water, a DHT11 sensor to check the temperature and humidity around the hydroponic system, and ultrasonic sensor to measure the water level in the reservoir. The result of this system design is a device for monitoring hydroponic using the Antares platform. What was observed in this study was the nutrient content and water level in the reservoir with parameters of the ideal nutrient levels are in the range of 1050-1500 ppm, while the water level was in the range of 6-8 cm. The results of Quality of Service (QoS) test of the MQTT protocol obtained an average delay of 2.5 s and a throughput of 2099 bps. [ABSTRACT FROM AUTHOR]