     Serial.println("BMP180 init success");
   else
   {
-    // If you want sea-level-compensated pressure, as used in weather reports,
-    // you will need to know the altitude at which your measurements are taken.
-    // We're using a constant called ALTITUDE in this sketch:
-
-    Serial.println();
-    Serial.print("provided altitude: ");
-    Serial.print(ALTITUDE, 0);
-    Serial.print(" meters, ");
-    Serial.print(ALTITUDE * 3.28084, 0);
-    Serial.println(" feet");
-
     Serial.println("BMP180 init fail\n\n");
     while (1); // Pause forever.
   }

{
  char status;
  double T, P, p0, a;

  // If you want to measure altitude, and not pressure, you will instead need
  // to provide a known baseline pressure. This is shown at the end of the sketch.

  // You must first get a temperature measurement to perform a pressure reading.


      // If request is successful, the number of ms to wait is returned.
      // If request is unsuccessful, 0 is returned.

      status = pressure.startPressure(0);
      if (status != 0)
      {
        // Wait for the measurement to complete:
