#include <DHT.h>

#define red 25
#define yellow 33
#define green 32
#define DHT_pin 15
#define DHTTYPE DHT22

DHT dht(DHT_pin, DHTTYPE);

float temp;

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  pinMode(red, OUTPUT);
  pinMode(yellow, OUTPUT);
  pinMode(green, OUTPUT);
  dht.begin();

}

void loop() {
  suhu();
  delay(1000); // this speeds up the simulation
}

void suhu(){
  temp = dht.readTemperature();

  if(temp < 30.0){
    digitalWrite(green, HIGH);
    digitalWrite(21, LOW);
    digitalWrite(yellow, LOW);
  }
  else if(30.0 <= temp <= 50.0){
    digitalWrite(yellow, HIGH);
    digitalWrite(red, LOW);
    digitalWrite(green, LOW);
  }
  else if(temp > 50.0){
    digitalWrite(red, HIGH);
    digitalWrite(yellow, LOW);
    digitalWrite(green, LOW);
  }
  else{
    digitalWrite(red, LOW);
    digitalWrite(yellow, LOW);
    digitalWrite(green, LOW);
  }
  Serial.print("Suhu : ");
  Serial.print(temp);
  Serial.println(" ℃");
  delay(500);
}