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Here’s a clear description of a TDS Meter Module for Arduino:

???? TDS Meter Module for Arduino – Description

???? Overview:

The TDS (Total Dissolved Solids) Meter Module is an electronic sensor designed to measure the amount of dissolved solids in water, which indicates water quality. It provides an analog or digital output compatible with Arduino and other microcontrollers, allowing real-time monitoring of water purity.

This module typically uses a TDS sensor probe immersed in water and an onboard circuit that converts the probe’s conductivity into a measurable voltage signal, which corresponds to TDS in parts per million (ppm).

⚙️ Key Features:

• Measures Total Dissolved Solids (TDS) in water (ppm)

• Provides analog output voltage proportional to TDS level

• Compatible with Arduino, ESP32, Raspberry Pi, and other microcontrollers

• Works with a 3.3V to 5V power supply

• Onboard operational amplifier and signal conditioning circuit

• Simple interface with one analog output pin

• Fast and accurate measurement with a typical range of 0 – 1000 ppm or more

???? Technical Specifications:

???? Applications:

• Water quality monitoring systems

• Aquarium water testing

• Hydroponics and agriculture

• Drinking water purification systems

• Environmental monitoring projects

• DIY IoT water sensors

✅ Usage Notes:

• Requires periodic calibration with known TDS solutions

• Probe must be properly cleaned for accurate readings

• Analog output needs to be converted to TDS ppm using formulas or calibration curves

Would you like example Arduino code to read and display TDS values or tips on calibrating the sensor?