#include "DHT.h"
#define DHTPIN 2
#define DHTTYPE DHT22
DHT dht(DHTPIN, DHTTYPE);

int LEDH = 12;
int LEDM = 13;   


void setup() {
  // put your setup code here, to run once:
Serial.begin(9600);
Serial.println(F(" *** Furnace Controlling Project ***"));
pinMode(LEDH, OUTPUT);
pinMode(LEDM, OUTPUT);
dht.begin();

}

void loop() {
  // put your main code here, to run repeatedly:
  delay(2000);
  float h = dht.readHumidity();
  float t = dht.readTemperature();
  float f = dht.readTemperature(true);
  if (isnan(h) || isnan (t) || isnan (f)) {
    Serial.println(F("Failed to read from DHT sensor!"));
    return;
  }

 t = dht.readTemperature();    //Baca suhu

  Serial.print("Suhu : ");
  Serial.print(t);              //Tampilkan suhu
  Serial.println(" °C");

  if (t < 18){                 //Jika suhu < 18*C, maka
    digitalWrite(LEDH, HIGH);   //LED hijau menyala
    Serial.println("LED HIJAU ON");
    Serial.println("Turn Furnace ON");
    digitalWrite(LEDM, LOW);
  }
  else if(t > 22){                 //Jika suhu <= 22*C, maka
    digitalWrite(LEDM, HIGH);   //LED merah menyala
    Serial.println("LED MERAH ON");
    Serial.println("Turn Furnace OFF");
    digitalWrite(LEDH, LOW);
  }

    delay(1000);
}