     Serial.println("Sensor not present");
   }
   
-  /*if(sensor.isPresent()) {
+  /*
+  // to check the sensor present
+  if(sensor.isPresent()) {
     Serial.println("Sensor present");
   } 
   else {

void setup(){
  Serial.begin(9600);
  delay(50);
  if(sensor.begin()) {
    Serial.println("Sensor initialized");
  } 

  delay(1000);
}

