Arduino-Based Water Classification System with TDS EC, pH, and Turbidity Sensors on LCD

Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.

For a swimming pool to be safe, more than just chlorine levels matter. Total dissolved solids, acidity, and water clarity all influence whether the water is fit for swimming or potentially irritating. This kit lets you build a compact Arduino-based instrument that measures TDS EC, pH, and turbidity in a single device, then reads out a safety classification on a 16x2 LCD. Instead of relying on guesswork or separate test strips, you create one integrated tester that pulls all three parameters into one clear verdict.

What You'll Build

You will assemble and program a multi-sensor water analyser that samples pool water and instantly displays whether conditions fall into "Safe," "Caution," or "Unsafe" categories based on the combined readings from three sensors. The final instrument runs on a 9V battery, mounts on a breadboard, and gives you a portable field tester that reads pH, conductivity, and turbidity just like commercial pool monitoring gear.

What You'll Learn

• Interface an analog pH module with Arduino and interpret the millivolt signal for pH calculation.
• Read a TDS EC meter and convert electrical conductivity values into parts-per-million dissolved solids.
• Measure water turbidity using an optical sensor and map voltage output to clarity levels.
• Design a safety logic algorithm that fuses three sensor inputs into a single readable classification on a 16x2 LCD via an I2C backpack.

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

This intermediate Arduino project fits CBSE Class 11-12 students building investigatory projects on water quality, B.Tech ECE/EEE students working on instrumentation or embedded systems, and teams participating in events like the Smart India Hackathon where environmental monitoring themes appear regularly. ATL Tinkering Labs and hobbyist spaces in IIT, NIT, VIT, and BITS campuses looking for a multi-sensor data fusion exercise find this kit bridges sensor theory with a practical, readable output.

Built and Backed by Compoden

Every Compoden kit ships with an AI build companion trained on this exact project - accessible via a QR code on the box, with WhatsApp and email backup. We've spent 10 years building projects for makers, schools, and institutions across India. If a part fails because of a manufacturing defect, replace it free within 7 days.