// Kendali 3 Led dengan Sensor Suhu
#include <DHT.h>
#define led_red 14
#define led_blue 13
#define led_green 12
#define dhtpin  2 // ESP32 pin GPIO21 connected to DHT22 sensor
#define DHTTYPE DHT22

DHT dht(dhtpin, DHTTYPE);

void setup() {
  Serial.begin(9600);
  pinMode(led_red, OUTPUT);
  pinMode(led_blue, OUTPUT);
  pinMode(led_green, OUTPUT);
  dht.begin();
}

void loop() {
  float tempC = dht.readTemperature();

  if ( isnan(tempC)) {
    Serial.println("Gagal membaca data dari sensor DHT!");
  } 
  else if(tempC<=20) {
    digitalWrite(led_red, LOW); 
    digitalWrite(led_blue, HIGH);
    digitalWrite(led_green, LOW); 
    Serial.println("SUHU DINGIN");

     } else if (tempC>20.1 && tempC<=29){
    digitalWrite(led_red, LOW); 
    digitalWrite(led_blue, LOW); 
    digitalWrite(led_green, HIGH); 
    Serial.println("SUHU SEDANG");

   } else if (tempC>29.1) {
    digitalWrite(led_red, HIGH);  
    digitalWrite(led_blue, LOW); 
    digitalWrite(led_green, LOW);  
     Serial.println("SUHU PANAS");

  }
  delay(1000);
}