Introduction

This experiment demonstrates how to measure water turbidity using a turbidity sensor with Arduino.

Components Needed

• Turbidity Sensor
• Arduino
• Jumper Wires

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Circuit Setup

1. Connect the turbidity sensor's output to an analog input pin on the Arduino.
2. Connect VCC and GND to the Arduino's 5V and GND pins.

The turbidity sensor measures the cloudiness or haziness of the water by detecting the amount of light scattered by particles suspended in the water.

Code for Water Turbidity Measurement

Upload the following code to your Arduino to measure turbidity:

const int turbidityPin = A0;

void setup() {
  Serial.begin(9600);
}

void loop() {
  int turbidityValue = analogRead(turbidityPin);
  Serial.print("Turbidity Value: ");
  Serial.println(turbidityValue);
  delay(1000);
}
            

Explanation

The turbidity sensor sends a signal proportional to the turbidity in the water. Higher values indicate more suspended particles, showing higher turbidity.

Troubleshooting

• If the sensor readings are not changing, check the water sample's turbidity and ensure the sensor is submerged correctly.
• If no data is being read, verify the analog wiring and the sensor's power connections.