Kendali pH untuk sistem IoT hidroponik deep flow technique berbasis fuzzy logic controller

Adnan Rafi Al Tahtawi (Department of Electrical Engineering, Politeknik Negeri Bandung)
Robi Kurniawan (Department of Computer Engineering, Politeknik Sukabumi)

Jurnal Teknologi dan Sistem Komputer
Volume 8, Issue 4, Year 2020 (October 2020)

In hydroponic cultivation sites, pH control is still carried manually by checking the pH level with a pH meter and providing a pH balancing liquid manually. This study aims to design an automatic pH control system in the Deep Flow Technique (DFT) hydroponic system that uses the Internet of Things (IoT) based Fuzzy Logic Controller (FLC). The SKU SEN0161 sensor detects the pH value as FLC inputs in an error value and its changes. These inputs are processed using Mamdani FLC embedded in the Arduino Mega 2560 microcontroller. The FLC produces an output in a pH liquid feeding duration using the peristaltic pump. The results showed that FLC could maintain the pH value according to the set point with a settling time of less than 50 seconds, both with disturbance by adding pH liquid and without disturbance. The pH value can also be displayed on the website interface system as a monitoring system.