//variable pin led
const int pinLED = 23;
const int pinLED1 = 19;
const int pinTemp = 12;
const float BETA = 3950; 

void setup() {
  // insisiasi serial communication
  Serial.begin(115200);
  Serial.println("Hello, ESP32!");
  //deklarasi pin
  pinMode(pinLED, OUTPUT);
  pinMode(pinLED1, OUTPUT);
  pinMode(pinTemp, INPUT);
  analogReadResolution(10);
}

void loop() {
  
  //kode temp
  int nilai_suhu = analogRead(pinTemp);
  float celcius = 1 / (log(1/(1023. / nilai_suhu -1)) / BETA + 1.0 / 298.15) - 273.15;
   Serial.println (nilai_suhu);
  if (celcius >30){
    // kode menghidupkan LED
  digitalWrite(pinLED, HIGH);
  delay(500);
   digitalWrite(pinLED1, HIGH);
  delay(500);
  //kode mematikan LED
  } else { digitalWrite(pinLED, LOW);
  delay(500); //satuan millisecond 
  digitalWrite(pinLED1, LOW);
  delay(500); //satuan millisecond 
  }
  
 
  
}