Development of a Prototype of a Smart Water Supply Control System for Households Using IoT System

Abstract

This paper presents the development of a prototype of a smart water supply control system for households using IoT system. The developed prototype can control water distribution via the internet network, utilizing the web application "Water Automic," which possesses the capability to regulate water flow. Furthermore, the system logs water usage data to establish historical records and facilitates water bill calculations. The system operates by

using a water flow sensor to measure the water flow rate. The acquired data is transmitted to the ESP32 microcontroller, which processes the data and transmitted via the internet network to the “Water Automic” web application to record the data. The microcontroller monitors the water flow rate and, when the pre-set amount of water is reached, commands the solenoid valve to turn on or off the waterway. The microcontroller will monitor the water flow rate through the sensor, and when it reaches the predetermined amount, it will command the solenoid valve to turn off.

This prototype of the control system was tested at an average water flow rate of 6.33 liters/min. It was found that it could effectively control the water on-off and the water volume configuration test found that the maximum error was 20% while the minimum error was 2%. The system could alert the application line according to all specified conditions.