LIMPID - Compact Water Sensory System

Francisco Rodrigues Duarte

Key information

Authors:

Francisco Rodrigues Duarte (Francisco Rodrigues Duarte)

Supervisors:

Paulo Luís Serras Lobato Correia (Paulo Luís Serras Lobato Correia); Hugo Humberto Plácido da Silva (Hugo Humberto Plácido da Silva)

Published in

July 3, 2024

Abstract

To safeguard aquatic habitats and public health, monitoring water bodies for quality is crucial. However, access to capable devices is limited, especially for recreational activities. This thesis covers the creation, implementation, and evaluation of device sensors and information transmission methods to facilitate water quality analysis in various settings. It will be highlighted the main issues in water quality analysis and the drawbacks of existing monitoring technologies. Recent advances in sensor technologies and their contribution to real-time data collection and analysis for water quality assessment are explored.The primary objective of the LIMPID project is to develop a compact, user-friendly device that measures five essential water parameters: temperature, pH, TDS, DO, and turbidity, along with creating data visualization solutions. The technologies used include ESP-IDF with C language for firmware, FreeRTOS for task management, Kotlin in Android Studio for mobile application development, and Angular for web data visualization.Through theoretical analyses, simulations, and practical experiments, the study evaluates sensor capabilities in terms of accuracy, durability, and data transmission efficiency, showcasing the process of creating a device from scratch. Experimental validation tests assess the device's performance in field applications.