#include <DHT.h>

#define DHTPIN 2     // Digital pin connected to the DHT sensor
#define DHTTYPE DHT22   // DHT 22  
#define LED_HIJAU 11
#define LED_KUNING 12
#define LED_MERAH 13
#define LED_BIRU 10
DHT dht(DHTPIN, DHTTYPE);

void setup() {
  Serial.begin(9600);
  dht.begin();
  pinMode(LED_HIJAU, OUTPUT);
  pinMode(LED_KUNING, OUTPUT);
  pinMode(LED_MERAH, OUTPUT);
  pinMode(LED_BIRU, OUTPUT);
}

void loop() {
  float h = dht.readHumidity();
  float t = dht.readTemperature(); // or t = dht.readTemperature(true) for Fahrenheit

  // Check if any reads failed and exit early (to try again).
  if (isnan(h) || isnan(t)) {
    Serial.println(F("Failed to read from DHT sensor!"));
    return;
  }

  Serial.print(F("Humidity: "));
  Serial.print(h);
  Serial.print(F("%  Temperature: "));
  Serial.print(t);
  Serial.println(F("°C "));

  // Kontrol lampu berdasarkan suhu
  if (t >= 5 && t <= 30) {
    digitalWrite(LED_HIJAU, HIGH);
    digitalWrite(LED_KUNING, LOW);
    digitalWrite(LED_MERAH, LOW);
    digitalWrite(LED_BIRU, LOW);
  } else if (t >= 30 && t <= 50) {
    digitalWrite(LED_HIJAU, LOW);
    digitalWrite(LED_KUNING, HIGH);
    digitalWrite(LED_MERAH, LOW);
    digitalWrite(LED_BIRU, LOW);
  } else if (t >= 51) {
    digitalWrite(LED_HIJAU, LOW);
    digitalWrite(LED_KUNING, LOW);
    digitalWrite(LED_MERAH, HIGH);
    digitalWrite(LED_BIRU, LOW);
  } else {
    // Suhu di bawah 5 derajat, matikan semua lampu
    digitalWrite(LED_HIJAU, LOW);
    digitalWrite(LED_KUNING, LOW);
    digitalWrite(LED_MERAH, LOW);
    digitalWrite(LED_BIRU, HIGH);
  }

  delay(2000);
}