Development of a System for Measuring pH and Oxygen Levels in Water Using Internet of Things (IoT) Technology

This paper presents the development of an automated water quality control system aimed at optimizing conditions for fish farming. The system is designed to measure and adjust key water parameters, including pH, oxygen levels, and temperature, to ensure an ideal environment for fish. The main objectives include measuring the water pH before chemical adjustment, regulating pH to suitable levels for aquaculture, monitoring oxygen levels to maintain an adequate supply, and controlling water temperature to ensure stable conditions. The system employs sensors to monitor pH and temperature, with the ability to trigger specific actions based on predefined conditions. For example, if the pH exceeds 5.0 and the temperature exceeds the threshold, both the LED light and DC motor operate to improve water quality. Conversely, if the pH drops below 5.0 or the temperature is below the desired range, the system adjusts accordingly. The integration of these functions into a unified system provides real-time water quality management, enhancing the sustainability and efficiency of aquaculture operations. The proposed system demonstrates a practical solution for improving water quality control in fish farming, ensuring the health of aquatic life while optimizing resource use.