const int moisturePin = A0; // Analog pin for soil moisture sensor
const int redLEDPin = 2;    // Digital pin for red LED
const int yellowLEDPin = 3; // Digital pin for yellow LED
const int greenLEDPin = 4;  // Digital pin for green LED

const int thresholdLow = 300; // Adjust this threshold for your specific sensor
const int thresholdMedium = 600;
const int thresholdHigh = 800;

void setup() {
  pinMode(redLEDPin, OUTPUT);
  pinMode(yellowLEDPin, OUTPUT);
  pinMode(greenLEDPin, OUTPUT);
  Serial.begin(9600); // Initialize serial communication for debugging (optional)
}

void loop() {
  int moistureValue = analogRead(moisturePin); // Read moisture level

  if (moistureValue <= thresholdLow) {
    // Low moisture level
    digitalWrite(redLEDPin, HIGH);
    digitalWrite(yellowLEDPin, LOW);
    digitalWrite(greenLEDPin, LOW);
  } else if (moistureValue <= thresholdMedium) {
    // Medium moisture level
    digitalWrite(redLEDPin, LOW);
    digitalWrite(yellowLEDPin, HIGH);
    digitalWrite(greenLEDPin, LOW);
  } else if (moistureValue <= thresholdHigh) {
    // High moisture level
    digitalWrite(redLEDPin, LOW);
    digitalWrite(yellowLEDPin, LOW);
    digitalWrite(greenLEDPin, HIGH);
  }

  // For debugging, you can print the moisture value to the serial monitor
  Serial.print("Moisture Level: ");
  Serial.println(moistureValue);

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