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All Journal ELKHA : Jurnal Teknik Elektro JTERA (Jurnal Teknologi Rekayasa) Jurnal Teknik Journal of Energy and Electrical Engineering (JEEE) JITEL (Jurnal Ilmiah Telekomunikasi, Elektronika, dan Listrik Tenaga) Jurnal Abdimas Kartika Wijayakusuma
Zainal, Yuda Bakti
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Humanities Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Mechanical Engineering Social Sciences Other

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Smart IoT System for Tilapia Water Quality Monitoring and Control zainal, Yuda bakti; Rd. F. D. F Wantini; Ade Sena P; Nivika T.S; Budiawan, Irvan; Martijanti, Martijanti
ELKHA Vol. 18 No.2 October 2026
Publisher : Faculty of Engineering, Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/elkha.v18i2.110598

Abstract

Maintaining stable water quality is essential for sustainable tilapia aquaculture, yet conventional monitoring often relies on periodic measurements and provides limited capability for automatic environmental regulation. This study presents a prototype Internet of Things (IoT)-based system for multi-parameter water-quality monitoring and local temperature control using an ESP32-S3 microcontroller, DS18B20 temperature sensor, pH-4502C sensor, SEN0189 turbidity sensor, relay-driven water heater, and Blynk cloud platform. The system acquires temperature, pH, and turbidity data at 5-s intervals and integrates local autonomous control with cloud-based supervisory monitoring. A hysteresis-based ON–OFF controller activates the heater below 27.5 °C and deactivates it above 30 °C, while the Blynk platform provides real-time visualization, historical monitoring, and notification functions. Experimental evaluation included sensor calibration, communication performance testing, temperature-control evaluation, and integrated functional testing under seven operating scenarios, with each scenario repeated three times. The DS18B20 achieved a mean absolute error of 0.175 °C, while the pH sensor exhibited a mean absolute deviation of 0.103 pH units and a maximum deviation of 0.12 pH units across the tested buffer solutions. Turbidity was qualitatively classified into clear, turbid, and highly turbid conditions. The communication subsystem achieved an average end-to-end latency of approximately 1.0 s, with no packet loss observed under the tested connected-network condition. The results demonstrate the feasibility of integrating multi-parameter sensing, autonomous temperature regulation, cloud monitoring, and notification within a cyber-physical prototype for laboratory-scale tilapia aquaculture monitoring.
Co-Authors Ade Sena P ahmad daelami Asep Najmurrokhman Budiawan, Irvan Dedi Dedi Fajrin, Isti Maulani Fakhri, Zul Haz, Fauzia Haz, Fauziah Ibrahim, Aziz Maulana Karmel, Gian Melky kusnandar kusnandar Marselindo, Rendi Martijanti, Martijanti Nivika T.S Permana, Ade Sena Rd. F. D. F Wantini Saputra, Dede Irawan Yuliana, Hajiar Yusaniar, Rady