Sending Carriage Return [ENTER] to the Serial Port

Hmm, still hanging unless I press enter on the keyboard.

delay(1000);
     Serial.write( 'o' ); // Turn on 'o'
     delay(1000);
     Serial.write( '\r' );  // Carriage Return
     delay(1000);
     Serial.write( 'c' );  // Activate Continuous Function 'c'
     delay(1000);
     Serial.write( '\r' ); //  Carriage Return
     delay(1000);