const int moisturePin = A0;
const int ledPin = 8;
const int buzzerPin = 9;

void setup() {
  pinMode(ledPin, OUTPUT);
  pinMode(buzzerPin, OUTPUT);

  Serial.begin(9600);
}

void loop() {
  int moisture = analogRead(moisturePin);

  Serial.print("Moisture Level: ");
  Serial.println(moisture);

  if (moisture < 400) {
    digitalWrite(ledPin, HIGH);
    tone(buzzerPin, 1000);
    Serial.println("Plant needs water!");
  }
  else {
    digitalWrite(ledPin, LOW);
    noTone(buzzerPin);
    Serial.println("Soil is wet.");
  }

  delay(500);
}