int mq135;
int gas;
void setup() {
   Serial.begin(9600);
   pinMode(A0, INPUT);

}

void loop() {
  // put your main code here, to run repeatedly:
   mq135 = analogRead(A0);
   gas = mq135 / 8;
   if (gas > 100){gas = 100; }
   else if (gas < 55){gas = 0; }
   Serial.println(gas);
    //kirim data BHC-06
  Serial.print("*G"+String(gas)+"*");
  
  if (gas >= 55){
  Serial.print("*T"+String("Terdeteksi Kebocoran Gas")+"*");
  Serial.print("*LR255G0B0*");
  Serial.print("*BV255*");
  delay(500);
  Serial.print("*LR255G255B255*");
  Serial.print("*BV0*");
  delay(500);
  }
  else{
  Serial.print("*T"+String("Kondisi Aman")+"*");  
  Serial.print("*LR0G255B0*");
  Serial.print("*BV0*");
  
  }
}