#define LedR 13   // LED Merah
#define LedY 12   // LED Kuning
#define LedG 11   // LED Hijau
#define SoilPin A0 // Pin Sensor Soil Moisture

void setup() {
  Serial.begin(9600);
  pinMode(LedR, OUTPUT);
  pinMode(LedY, OUTPUT);
  pinMode(LedG, OUTPUT);
  pinMode(SoilPin, INPUT);
}

void loop() {
  checkSoilMoisture();
  delay(1000); // Tunggu sebelum mengulang siklus
}

void checkSoilMoisture() {
  double moistureValue = analogRead(SoilPin); // Baca nilai sensor kelembaban tanah
  int kelembapan = ((moistureValue - 420) / (905 - 420)) *100;
  Serial.print("Nilai mentah: ");
  Serial.println(moistureValue);
  Serial.print("Kelembapan: ");
  Serial.print(kelembapan);
  Serial.println(" %");

  if (kelembapan <= 45) { // Jika tanah kering (sesuaikan threshold dengan sensor)
    Serial.println("Tanah kering! Nyalakan LED merah.");
    digitalWrite(LedR, HIGH); // Nyalakan LED merah jika tanah kering
    digitalWrite(LedY, LOW); //matikan LED 
    digitalWrite(LedG, LOW); //matikan LED 
  } else if (kelembapan > 45 && kelembapan < 75) {
    Serial.println("Tanah Lembab! Nyalakan LED kuning.");
    digitalWrite(LedR, LOW); //matikan LED 
    digitalWrite(LedY, HIGH); // Nyalakan LED kuning jika tanah cukup lembab
    digitalWrite(LedG, LOW); //matikan LED 
  } else if(kelembapan >= 75){
    Serial.println("Tanah Lembab! Nyalakan LED hijau.");
    digitalWrite(LedR, LOW); //matikan LED 
    digitalWrite(LedY, LOW); //matikan LED 
    digitalWrite(LedG, HIGH); // Nyalakan LED hijau jika tanah basah
  } else {
    Serial.println("error");
  }
}