#define BLYNK_TEMPLATE_ID "TMPL5pCYhyMf1"
#define BLYNK_TEMPLATE_NAME "Gas detector"
#define BLYNK_AUTH_TOKEN "WN-rIZdQFimbQwJr2Q8pd7AniCgMHzol"

#define gasPin  32
#define ledPin  18
#define buz      5

#define gasThreshold  500

#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>

#include "LiquidCrystal_I2C.h" 

LiquidCrystal_I2C lcd = LiquidCrystal_I2C(0x27, 16, 2); 





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

int gasVal = 0;

void setup() {
  Serial.begin(9600);
  pinMode(ledPin, OUTPUT);
  pinMode(buz, OUTPUT);
  pinMode(gasPin, INPUT);
  lcd.init();
  lcd.backlight();
  

  Blynk.begin(BLYNK_AUTH_TOKEN, ssid, pass);

}

void loop() {
   gasVal = analogRead(gasPin);
   gasVal = map(gasVal, 0, 4095, 0, 1024);
 
  if(gasVal > gasThreshold){
      digitalWrite(ledPin, HIGH);
       digitalWrite(buz, HIGH);
      writeLcd("Gas Leakage");
      Blynk.virtualWrite(V1, 1);
 
  }
  else{
     digitalWrite(ledPin, LOW);
     digitalWrite(buz, LOW);
     lcd.clear();
     Blynk.virtualWrite(V1, 0);
  }

  Blynk.virtualWrite(V0, gasVal);
  Blynk.run();
  Serial.println(gasVal);
  delay(10); // this speeds up the simulation
}

void writeLcd(String x){
   lcd.setCursor(3,0);
   lcd.print(x.c_str());
}

//All Good??