Development of a Real-Time PH-Based Water Pollution Detection System Using Arduino

Abstract

In today’s world, Arduino microcontrollers play an important role in connecting technology to everyday life. This project presents a low-cost and efficient water pollution detection system using the Arduino Nano, pH sensor, and LCD display. The main goal is to help users determine whether water is safe to use by measuring its pH level, indicating if it is acidic, alkaline, or neutral. This system is designed to monitor water quality in real time. When the pH sensor is placed in water, it measures the pH level and sends the data to the Arduino Nano. The results are then displayed on an LCD screen. If the water is found to be contaminated or outside the safe pH range, the system alerts users by displaying the pH value and activating a buzzer to warn the surrounding community. This system setup allows for continuous monitoring and real-time updates, ensuring users are always informed about the current water quality. Unlike traditional methods, this system offers a more accurate, accessible, and immediate way to check water conditions. It is especially useful in areas where access to clean water is limited or water pollution is a concern. Developed with minimal cost and using open-source technology, the system is practical for public use and community awareness. The ultimate aim is to assist individuals, especially in Malaysia, in identifying unsafe water sources and reducing the risk of consuming polluted water, thereby improving public health and safety.

Keywords: Arduino Nano, pH Sensor, Water Quality, Water Pollution Detection, LCD displays