ASSEMBLY OF AN AUTOMATIC WATER QUALITY MONITORING SYSTEM FOR USE IN FISH FARMING ACTIVITIES USING THE ARDUINO MICROCONTROLLER

Abstract

This study developed an automatic water quality monitoring system for use in fish farming activities, based on the assembly of a low-cost prototype capable of performing real-time measurements. The proposal is grounded in automation as a strategy to obtain data that support producers in decision-making related to fish farming management. Considering that these activities generally take place in rural and remote areas, the system was designed to operate independently of grid electricity and internet connectivity. The research adopted an exploratory and quantitative approach, including testing of electronic components and evaluation of the accuracy of the collected data. The system consists of an Arduino microcontroller for data processing, sensors for parameter collection, a display for local visualization, an ESP32 board integrated with a LoRa network for data transmission to mobile devices, and a battery as the power source. After testing the temperature and pH parameters, the system demonstrated the ability to collect and provide data in real time, both locally and remotely. Thus, the project contributes to reducing production losses, especially of fingerlings, and to more efficient water use, promoting economic and environmental benefits.