#include <Servo.h>

Servo valve;        // Servo motor object
int soilPin = A0;   // Soil sensor analog pin
int buzzerPin = 8;  // Buzzer pin

void setup() {
  valve.attach(3);          // Servo signal pin
  pinMode(buzzerPin, OUTPUT);
  Serial.begin(9600);
}

void loop() {
  int soilValue = analogRead(soilPin);
  Serial.print("Soil Moisture: ");
  Serial.println(soilValue);

  if (soilValue >= 400) {     // Dry soil
    valve.write(90);          // Open valve
    tone(buzzerPin,1000);
  } else {                    // Wet soil
    valve.write(0);           // Close valve
    noTone(buzzerPin);
  }

  delay(1000);  // 1 second delay
}