#include <WiFi.h>
#include "ThingSpeak.h"
#include "DHT.h"

#define DHTPIN 14                 // Pin DHT22
#define DHTTYPE DHT22             // DHT11 atau DHT22 (menyesuaikan tipe dht)
   
DHT dht(DHTPIN, DHTTYPE);
WiFiClient client;

const char* ssid = "Wokwi-GUEST";  // Nama WiFi
const char* pass = ""; // Password WiFi

unsigned long myChannelNumber = 3218213;  // ID Channel ThingSpeak
const char * myWriteAPIKey = "TEA4BEDJP8JKWZ8F"; // API Key

const float GAMMA = 0.7;
const float RL10 = 50;

unsigned long lastTime = 0;
unsigned long timerDelay = 30000;

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

  WiFi.mode(WIFI_STA); 
  connectToWiFi();

  ThingSpeak.begin(client);
}

void loop() {
  if ((millis() - lastTime) > timerDelay) {
    if (WiFi.status() != WL_CONNECTED) {
      connectToWiFi();
    }

    // Sensor DHT
    float temperature = dht.readTemperature();
    float humidity = dht.readHumidity();

    Serial.println("Temp: " + String(temperature, 2) + "°C");
    Serial.println("Humidity: " + String(humidity, 1) + "%");
    Serial.println("---");

      // Mengirim data ke ThingSpeak
      ThingSpeak.setField(1, temperature);
      ThingSpeak.setField(2, humidity);

      int responseCode = ThingSpeak.writeFields(myChannelNumber, myWriteAPIKey);

      if (responseCode == 200) {
        Serial.println("Channel update successful.");
      } else {
        Serial.println("Problem updating channel. HTTP error code: " + String(responseCode));
      }
    lastTime = millis();  
  }
}

void connectToWiFi() {
  Serial.print("Attempting to connect to WiFi");
  while (WiFi.status() != WL_CONNECTED) {
    WiFi.begin(ssid, pass);
    Serial.print(".");
    delay(5000);
  }
  Serial.println("\nConnected to WiFi.");
}