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

#define DHTPIN 15    // Chân kết nối DHT
#define DHTTYPE DHT22

DHT dht(DHTPIN, DHTTYPE);
HTTPClient http;

void setup() {
  Serial.begin(9600);
  Serial.print("Connecting to WiFi");
  WiFi.begin("Wokwi-GUEST", "", 6);
  while (WiFi.status() != WL_CONNECTED) {
    delay(100);
    Serial.print(".");
  }
  Serial.println(" Connected!");

  dht.begin();
}

void loop() {
  if (WiFi.status() == WL_CONNECTED) {
    // Đọc dữ liệu từ cảm biến DHT
    float temperature = dht.readTemperature();
    float humidity = dht.readHumidity();

    // Kiểm tra lỗi đọc dữ liệu
    if (isnan(temperature) || isnan(humidity)) {
      Serial.println("Failed to read from DHT sensor!");
      return;
    }

    // Tạo URL với dữ liệu cảm biến
    String serverName = "https://k33vluff8f.sharedwithexpose.com/add2.php";
    String url = serverName + "?temperature=" + String(temperature) + "&humidity=" + String(humidity);
    Serial.println(url);

    // Gửi request HTTP
    http.begin(url);
    int httpCode = http.GET();

    if (httpCode > 0) {
      String payload = http.getString();
      Serial.println(httpCode);
      Serial.println(payload);
    } else {
      Serial.println("Error on HTTP request");
    }
    http.end();
  }

  delay(5000); // Gửi mỗi 5 giây
}