Automatic Water Filling System and Water Quality Measurement

Currently, excessive and unnecessary water usage is a significant issue. When water is wasted, it cannot be reused and is lost entirely, leading to various consequences. The impacts of water loss are severe, as many places around the world lack access to safe drinking water [1]. Cities often draw water from natural sources, and if these sources are not replenished, local species that rely on or inhabit these environments may perish [2]. Additionally, wastage limits the availability of water for others' needs. The visible impacts of excessive water loss are numerous. The affected ecosystems may suffer significant damage [3]. Although wastewater treatment plants exist to process and purify used water, the loss still imposes economic burdens due to the extensive resources and processes required to restore water for consumption [4]. In this study, we aim to develop an Automatic Water Filling System and Water Quality Measurement System that operates efficiently for water filtration systems [5]. To achieve this, we employed Ultrasonic Sensors, an IoT device used for distance measurement, in combination with a Solenoid Valve to control water flow, both of which are integrated into our framework. Additionally, we used TDS Measurement to determine the total dissolved solids, including inorganic and organic substances, in water. The system can be controlled via the Blynk application and provides notifications through LINE Notify. The prototype was evaluated based on criteria for water quality measurement and the results obtained from water level control.