   ITG-3200 : Gyro
 
   Arduino IDE : Select board "Arduino Pro or Pro Mini (3.3v, 8Mhz) w/ATmega328"
-*/
-
-/*
-  "9DOF Sensor Stick" hardware versions: SEN-10183, SEN-10321 and SEN-10724
-
-  ADXL345  : Accelerometer
-  HMC5843  : Magnetometer on SEN-10183 and SEN-10321
-  HMC5883L : Magnetometer on SEN-10724
-  ITG-3200 : Gyro
 */
 
 /*

      Drift_correction();
      Euler_angles();

      if (output_stream_on || output_single_on) output_sensor_angles();
    }
    else  // Output sensor values
    {

                One frame consist of three 3x3 float values = 36 bytes. Order is: acc x/y/z, mag x/y/z, gyr x/y/z.
      "#osbb" - Output BOTH raw and calibrated SENSOR data of all 9 axes in BINARY format.
                One frame consist of 2x36 = 72 bytes - like #osrb and #oscb combined (first RAW, then CALIBRATED).

      // Angle output and sensor data output
      "#oat" - Output CALIBRATED SENSOR data of accelerometer and gyros in TEXT format.
               One frame consist of three lines - one for RPY, accel, gyro
      "#oab" - Output CALIBRATED SENSOR data of accelerometer and gyros in BINARY format.
               One frame consist of two 3x3 float values and one RPY 3x4 (24 bytes + 12 bytes = bytes long)
      
      // Error message output        
      "#oe0" - Disable ERROR message output.
