#define gasPin 34
#define ledPin 2
#define buzzerPin 15

int gasValue = 0;

void setup()
{
  Serial.begin(115200);

  pinMode(ledPin, OUTPUT);
  pinMode(buzzerPin, OUTPUT);
}

void loop()
{
  gasValue = analogRead(gasPin);

  Serial.print("Gas Value: ");
  Serial.println(gasValue);

  if(gasValue > 2000)
  {
    digitalWrite(ledPin, HIGH);
    digitalWrite(buzzerPin, HIGH);

    Serial.println("Gas Leakage Detected!");
  }
  else
  {
    digitalWrite(ledPin, LOW);
    digitalWrite(buzzerPin, LOW);

    Serial.println("Safe");
  }

  delay(1000);
}