const int soilPin = A0;         // Sensor kelembaban di pin A0
const int pumpPin = 8;          // Pompa / LED di pin 8
int threshold = 500;            // Nilai batas kelembaban (0-1023)

void setup() {
  pinMode(pumpPin, OUTPUT);
  Serial.begin(9600);
}

void loop() {
  int soilValue = analogRead(soilPin); // Baca nilai sensor
  Serial.print("Kelembaban tanah: ");
  Serial.println(soilValue);

  if (soilValue > threshold) {
    digitalWrite(pumpPin, HIGH); // Tanah kering, nyalakan pompa
    Serial.println("Tanah kering - menyiram...");
  } else {
    digitalWrite(pumpPin, LOW);  // Tanah cukup basah, matikan pompa
    Serial.println("Tanah cukup basah.");
  }

  delay(1000); // Cek setiap 1 detik
}