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

const char* ssid = "Wokwi-GUEST";
const char* password = "";

WiFiClient client;

const char myChannelNumber = "";
const char* myWriteAPIKey = "";

int mq2Pin = 34; // Analog pin for MQ2

void setup() {
  Serial.begin(115200);
  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  Serial.println("\nWiFi connected");
  
  ThingSpeak.begin(client);
}

void loop() {
  int gasValue = analogRead(mq2Pin);
  Serial.println("Gas Value: " + String(gasValue));

  ThingSpeak.setField(1, gasValue);
  int x = ThingSpeak.writeFields(myChannelNumber, myWriteAPIKey);

  if (x == 200) {
    Serial.println("Update successful.");
  } else {
    Serial.println("Update failed, HTTP error code: " + String(x));
  }

  delay(15000); // saya copy dari cakra remon
}