Automatic Temperature Control System for Caridina Ornamental Shrimp Aquascape Ecosystem and IoT-Based Water pH Monitoring Using Blynk
Sistem Kontrol Otomatis Suhu Aquascape untuk Ekosistem Udang Hias Caridina dan Monitoring pH Air Berbasis IoT Menggunakan Blynk
DOI:
https://doi.org/10.21070/ups.10657Keywords:
Arduino Uno, Blynk, Caridina Shrimp, ESP32, IoT, Peltier TEC1-12706, Temperature Control SystemAbstract
Caridina ornamental shrimp are high-value aquatic organisms known for their extreme sensitivity to fluctuations in water parameters, particularly temperature and pH. Instability in these parameters can cause physiological stress, immune suppression, and mass mortality. This research develops a prototype IoT-based automatic water temperature control system with real-time online pH monitoring. The system uses a master-slave architecture, where an Arduino Uno serves as the main controller managing sensors, actuators, and local user interfaces, while an ESP32 functions as an IoT gateway connecting the system to the Blynk platform via wireless network. Water cooling is achieved using five Peltier TEC1-12706 modules controlled by a hysteresis algorithm with upper and lower thresholds of 28°C and 22°C. Temperature is sensed using a waterproof DS18B20 sensor with 1-Wire protocol, while pH monitoring employs a pH-4502C module with 50-sample oversampling and Exponential Moving Average (EMA) filtering.
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