Data-centric IoT system using arduino uno and smartphone app for water quality purpose

Malaysia's strategic position and rich natural resources include a rapidly growing aquaculture sector. The problem of pollution in freshwater quality is not a foreign matter nowadays because it is often associated with rapid urbanization and economic activity. Effective water quality management is crucial in preventing livestock losses. To address this, a portable IoT water quality monitoring system (i-POOL) was designed, focusing on dissolved oxygen, turbidity, temperature, and pH. Tested in various freshwater locations, including Terat Batu Lobster Pond, Land Fisherman Cooperative of Sidam Kanan District, and river, i-POOL enables real-time monitoring through a smartphone app. Feedback from the Department of Fisheries and local communities indicates positive perceptions, highlighting i-POOL's potential as a valuable tool for early water quality assessment. Thus, i-POOL clearly shows that it can have excellent prospects and be used for river and freshwater quality monitoring by providing real-time data to users.