#include <WiFi.h>
#include <PubSubClient.h>
#include <DHT.h>

const char* ssid = "Wokwi-GUEST";
const char* password = "";
const char* mqtt_server = "broker.mqtt-dashboard.com";
const char* topic6 = "suhu/satu";

#define DHTPIN 4
#define DHTTYPE DHT22
DHT dht(DHTPIN, DHTTYPE);

WiFiClient wifiClient;
PubSubClient client(wifiClient);

void setup() {
  Serial.begin(115200);

  // Menghubungkan ke WiFi
  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(1000);
    Serial.println("Connecting to WiFi...");
  }
  Serial.println("Connected to WiFi");

  // Menghubungkan ke MQTT broker
  client.setServer(mqtt_server, 1883);
  while (!client.connected()) {
    Serial.println("Connecting to MQTT broker...");
    if (client.connect("ESP32Client")) {
      Serial.println("Connected to MQTT broker");
    } else {
      Serial.print("Failed with state ");
      Serial.print(client.state());
      delay(2000);
    }
  }

  // Inisialisasi DHT
  dht.begin();
}
void loop() {
  float temperature = dht.readTemperature();
  
  if (isnan(temperature)) {
    Serial.println("Gagal membaca suhu dari sensor DHT22");
    return;
  }

  char message[3];
  snprintf(message, 3, "%f", temperature);

  if (client.connect("ESP32")) {
    client.publish(topic6, message);
  }
  
  delay(100);
}