Smart Monitoring and Controlling System for Soil Moisture Utilizing Internet of Things (IoT) Technology with Fuzzy Logic Controller

Pak choi is a popular food source with many benefits for human health and high economic value. However, many things could be improved to cultivate the pak choi. The soil moisture content, one of the growth parameters that can affect the development and productivity of pak choi, needs more attention. The recommended standard range of soil moisture content for pak choi is between 50% and 70%. However, there needs to be an integrated device that can monitor and control soil moisture. This study has designed a system to control the soil moisture content within 50% to 70% using fuzzy logic control and Internet of Things (IoT) technology. Water pumps and heaters are utilized to control the soil moisture content. The system can also be monitored and controlled through an Android-based smartphone application. The performance of the proposed system was evaluated by comparing it with the simulation using Matlab. The water pump and heater demonstrate excellent performance with 98.07% and 97.30% accuracy, respectively. Moreover, the proposed system also works to keep the soil moisture levels stable within the desired range of 50% to 70%, and the application can give the user to obtain information and control the hardware according to the user’s needs.