Total Dissolved Solids (TDS) is a measurement for detecting the potability of water. Both humans and aquatic creatures require a suitable level of water content to survive. TDS value > 1000 ppm indicates an excess of dissolved solids (high) while TDS value < 50 -250 ppm indicates lack of essential minerals (low) – both values are unsuitable for water. For safe drinking water, the TDS level should be between 300 – 500ppm, that is, perfectly balanced (neither too high nor too low). That is why the TDS level of water needs to be constantly maintained. So, in this project you will learn how to make a portable TDS meter that checks the TDS level of water in real-time, enabling us to maintain the right pH level of water.
Arduino-Based Compact TDS Meter