Prototype of Water Quality Monitoring System Arowana Fish Aquarium Based on IoT (Internet of Things)

Abstract

Arowana fish are live in fresh water and are usually found in rivers, lakes, and even swamps. Arowana fish have a beautiful shape and color, so they are kept as to ornamental fish. Keeping arowana fish is quite difficult considering because these fish are sensitive to water quality and die easily. The solution to overcome this problem is to create a system that is able to monitor water quality. The water quality parameters monitored are pH, temperature, and turbidity. This research succeeded in building a prototype water quality monitoring system in an arowana fish aquarium based on the IoT (Internet of Things). The system built uses the ESP32, which functions as the main microcontroller to processes sensor data, and sends water quality measurement results to users via the Telegram application as an interface, so that users can monitor water quality conditions in the arowana fish aquarium. The system was built can control water quality according to each parameter. The system can control the pH level of the water using a micro pump which will distribute pH up and down pH fluids, to regulate the water temperature using an aquarium heater and fan, as well as water turbidity parameters using an aquarium water pump to filter the water.

System testing consists of testing hardware, software and sensor accuracy. Based on results of testing, the system can process sensor data and send monitoring results to the user. In accuracy sensor testing, the pH sensor had an accuracy level of 98.12%, the temperature sensor 99.4%, and the turbidity sensor 99%. Overall, it can be concluded that the system can work well.