#define BLYNK_TEMPLATE_ID "TMPL3FDXU5V-v"
#define BLYNK_TEMPLATE_NAME "Hello LED 4"
#define BLYNK_AUTH_TOKEN "KLLxpNcKpvyvqcJGK1buH_yjPArWWWlI"
#include <WiFi.h>
#include <BlynkSimpleEsp32.h>

#define MQPIN 34
#define MQSEN V0

char ssid[] = "Wokwi-GUEST";
char pass[] = "";

int gasThresh = 50;
bool gasAlertSent = false;

void setup()
{
  
  Serial.begin(115200);
  pinMode(MQPIN, INPUT);
  Blynk.begin(BLYNK_AUTH_TOKEN, ssid, pass);
}
void loop()
{
   Blynk.run();

  int mqvalue=analogRead(34);
  int mapvalue=map(mqvalue,0,4095,0,100);
  Blynk.virtualWrite(MQSEN, mapvalue);

  if (mapvalue> gasThresh && !gasAlertSent)
  {
    Serial.println("High Gas");
    Serial.print(mapvalue);
    Blynk.logEvent("gas_Alert", "High level of Gas");
    gasAlertSent = true;
  }
  else if (mapvalue < gasThresh)
  {
    gasAlertSent = false;
  }

  Serial.print("MQ Value: ");
  Serial.println(mapvalue);
}