Development of An Automated IoT-based Fish Tank Maintenance Assistive System

In this project, we present the design and implementation of an Arduino-based fish tank monitoring system that utilizes turbidity and pH sensors, along with a servo motor for automated water quality management. The system aims to provide monitoring and control capabilities to ensure optimal conditions for aquatic life in a fish tank environment. The turbidity sensor measures the cloudiness or clarity of the water, which is crucial for assessing the presence of suspended particles and overall water quality. The pH sensor measures the acidity or alkalinity of the water, providing valuable information about the tank's chemical balance. The air quality sensor present in the system helps to measure the air quality in the environment.  To ensure the stability of water conditions, the system employs a servo motor that controls fish food. And LCD will able to give visual feedback.

The Arduino acts as the central processing unit of the system, responsible for collecting sensor data, analysing it, and executing appropriate control actions. By leveraging its digital and analog input/output capabilities, the Arduino effectively interfaces with the turbidity and pH sensors, as well as the servo motor, enabling communication and control. And also a nodeMCU will work as bridge between arduino and web server and also provide controlling the fish feed whenever needed. And the DC pump which connected through relay will help to change the water if necessary based on sensor data.

The fish tank monitoring system presented in this project demonstrates an effective and versatile solution for maintaining optimal water conditions in aquariums or fish tanks. By integrating turbidity and pH sensors with an Arduino microcontroller, along with servo motor control, the system offers an user-friendly approach to fish tank management.

Keywords: pH sensor, servo motor, turbidity sensor, nodemcu, arduino.