const byte PINLEDMerah = 4;
const byte PINLEDBiru = 5;
const byte PINLEDHijau = 21;
const byte PIN_NTCSensor = 35;

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  analogReadResolution(10);
  pinMode(PINLEDMerah, OUTPUT);
  pinMode(PINLEDBiru, OUTPUT);
  pinMode(PINLEDHijau, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  int nilaiADC = analogRead(PIN_NTCSensor);

// Serial.print("Nilai ADC : ");
// Serial.println(nilaiADC);
Serial.print("Nilai ADC : "+ String(nilaiADC));
float temperature = suhu(nilaiADC);
// Serial.print("Nilai Intensitas Cahaya : ");
// Serial.println(intensitasCahaya);
Serial.println(" Nilai Suhu : "+ String(temperature));

if (temperature > 0 && temperature <= 20){
  digitalWrite(PINLEDMerah, HIGH);
  digitalWrite(PINLEDBiru, LOW);
  digitalWrite(PINLEDHijau, LOW);

  Serial.println("Pin Merah Menyala");
}
else if (temperature > 20 && temperature <= 50){
  digitalWrite(PINLEDMerah, HIGH);
  digitalWrite(PINLEDBiru, HIGH);
  digitalWrite(PINLEDHijau, LOW);

  Serial.println("Pin Merah & Biru Menyala");
}
else if (temperature > 50 && temperature <= 80){
  digitalWrite(PINLEDMerah, HIGH);
  digitalWrite(PINLEDBiru, HIGH);
  digitalWrite(PINLEDHijau, HIGH);

  Serial.println("Pin Merah, Biru & Hijau Menyala");
}
else {
  digitalWrite(PINLEDMerah, LOW);
  digitalWrite(PINLEDBiru, LOW);
  digitalWrite(PINLEDHijau, LOW);
}
delay(100);
}

float suhu(int analogValue){
  const float BETA = 3950; 
  float celsius = 1 / (log(1 / (1023. / analogValue - 1)) / BETA + 1.0 / 298.15) - 273.15;
  return celsius;
}