const int turbidityPin = A0;  // Analog pin for turbidity sensor
const int greenLEDPin = 2;   // Digital pin for green LED
const int redLEDPin = 3;     // Digital pin for red LED

void setup() {
  pinMode(turbidityPin, INPUT);
  pinMode(greenLEDPin, OUTPUT);
  pinMode(redLEDPin, OUTPUT);
  
  Serial.begin(9600);
}

void loop() {
  int turbidityValue = analogRead(turbidityPin);

  // Adjust the threshold values based on your sensor and water quality requirements
  if (turbidityValue < 500) {
    // Good water quality, turn on green LED
    digitalWrite(greenLEDPin, HIGH);
    digitalWrite(redLEDPin, LOW);
  } else {
    // Poor water quality, turn on red LED
    digitalWrite(greenLEDPin, LOW);
    digitalWrite(redLEDPin, HIGH);
  }

  Serial.print("Turbidity: ");
  Serial.println(turbidityValue);

  delay(1000);  // Delay for stability, adjust as needed
}