#include <Adafruit_Sensor.h>
#include <DHT.h>
#include <DHT_U.h>

#define DHTPIN 2     // Pin data DHT sensor terhubung ke pin 2
#define DHTTYPE DHT22   // Tipe sensor yang digunakan (DHT22)

DHT_Unified dht(DHTPIN, DHTTYPE);

const int greenLed = 5; // Pin untuk lampu indikator hijau
const int yellowLed = 6; // Pin untuk lampu indikator kuning
const int redLed = 7; // Pin untuk lampu indikator merah

void setup() {
  Serial.begin(9600);
  dht.begin();

  pinMode(greenLed, OUTPUT);
  pinMode(yellowLed, OUTPUT);
  pinMode(redLed, OUTPUT);
}

void loop() {
  delay(2000);

  sensors_event_t event;
  dht.temperature().getEvent(&event);

  if (isnan(event.temperature)) {
    Serial.println("Error membaca suhu!");
  } else {
    float temperature = event.temperature;
    Serial.print("Suhu: ");
    Serial.println(temperature);

    if (temperature < 25.0) {
      digitalWrite(greenLed, HIGH);
      digitalWrite(yellowLed, LOW);
      digitalWrite(redLed, LOW);
    } else if (temperature >= 25.0 && temperature <= 30.0) {
      digitalWrite(greenLed, LOW);
      digitalWrite(yellowLed, HIGH);
      digitalWrite(redLed, LOW);
    } else {
      digitalWrite(greenLed, LOW);
      digitalWrite(yellowLed, LOW);
      digitalWrite(redLed, HIGH);
    }
  }
}