Development of Portable Water Quality Monitoring System Using Apps

Abstract

Portable Water Quality Monitoring System Using Apps or better known as PWQMSA is a device for measuring and displaying the water temperature, water hygiene and pH value. The design of this innovation model is based on ADDIE model. Kodular Creator serves as graphical user interface while Firebase acts as a database. All the readings measurements acquired are stored in the Google Excel Spreadsheet. Apps that build using the Kodular Creator can be converted into apk format and downloaded by the user. Before innovation, fish pool operators will conduct water quality tests using pH strips to determine the pH value as well as using the hand to detect the temperature of the pool and see with the naked eye to determine whether the water is cloudy or clear. By using the PWQMSA, the measurement and monitoring process is now simpler, the value is readable, the information is automatically gathered in the Google Excel Spreadsheet and the system gives the owner the notification of water status. Moreover, the authentication process can be done by entering a password to prevent outsiders from accessing apps. The various hardware used in this innovation are Arduino Mega, NodeMCU, DS18B20 temperature sensor, humidity sensor, pH sensor and turbidity sensor. The greatest contribution is to contribute to the high accuracy in measuring pH values using the straight line formula y = mx + c. This model has been tested for its functionality by Energy High Tech Sdn Bhd that has certified qualifications in electrical and electronic field. However, for future planning, other parameters can be added such as Dissolved Oxygen, Ammoniacal Nitrogen, Biochemical Oxygen Demand and Total Suspended Solid.