PEMBUATAN TERMOSTAT CERDAS TANGGAP PERUBAHAN CUACA BERBASIS IOT UNTUK HIDROPONIK SISTEM WICK PADA TANAMAN PAKCOY

Manufacture of Smart Thermostat Weather Responsive Using IoT for Hydroponic Wick System on Pakcoy

Abstract

Hydroponics is an agricultural cultivation that uses water as a growing medium. One of the plants that can be cultivated
hydroponically is the pakcoy plant. Pakcoy is a plant with an optimum water temperature range for its growth which is
15-30°C. The process of stabilizing the water temperature is important because the optimal temperature will make plant
growth good. Currently, the process of monitoring and stabilizing water temperature is done manually and the process
is carried out periodically so it is not easy to do. Therefore, the authors conducted a study to design an IoT-based
intelligent thermostat for wicking hydroponic systems for pakcoy plants. The intelligent thermostat system consists of a
DS18B20 water temperature sensor, a Peltier cooling system, and a water pump and uses the MQTT data communication
protocol. This research was conducted with 3 stages of testing, namely, black box testing, Peltier calibration testing, and
the final stage of testing which is divided into 2, namely without using a website and using a website. The final stage of
testing is carried out in the morning, afternoon, evening, night, and early morning with the results of the system testing
working to stabilize the water temperature when there is a temperature change of up to 2°C and then stabilized
periodically to a tolerance of 1°C. So it can be concluded that the system in this study belongs to the category of a good
system and is feasible to use.