Miniature IoT WATER TDS And LEVEL MONITOR Cum CONTROLLER

For setups that rely on stored water, clear awareness of tank level and water quality is essential. Traditional level monitors are often bulky offline devices with only simple LED indicators, while many newer smart models can be expensive and still ignore key quality parameters such as total dissolved solids (TDS) and turbidity. As environmental contamination increases, continuous monitoring of both water level and purity has become necessary.

- ASHWINI KUMAR SINHA

This system provides a cost-effective approach with remote pump control over WiFi, data logging, and the ability to operate in mesh configurations across multiple tanks or monitoring points. It measures water level, TDS, and turbidity in real time, issues alerts when thresholds are crossed, and stores the readings for later review, offering significant savings compared to many commercial options.

Compact and easy to install, the system uses the IndusBoard Coin V2 as the central controller due to its small size and integrated analogue-to-digital conversion. Alerts are generated when the water becomes cloudy or shows increased dissolved solids, and all data is stored locally. Fig. 1 shows the prototype and dashboard, and the Bill of Materials table lists the required components.

Circuit and working

Fig. 2 shows the circuit diagram of the miniature IoT water TDS and level monitor cum controller system. The core elements include the IndusBoard Coin V2, a TDS sensor, a turbidity sensor, stainless steel probes for water level sensing, and supporting components.