 const char SENSORS_OFF_CONFIRM      = 'i';
 const char FLIGHT_REC_ON_CONFIRM    = 'O';
 const char FLIGHT_REC_OFF_CONFIRM   = 'o';
+
+//    Sending status reports
+const char STATUS_OK = 'A';
+
+const int ITERATIONS_FOR_EACH_STATUS_REPORT = 100;
 
 //   MPU constants
 const char MPU_POSITIVE_THRESHOLD   = 3;

char statusReport = 'A'; // one-byte status report to controller
int iterationsSinceLastStatusReportSent = 0;

bool batteryLow = false;
bool batteryOk = true;
bool motorOk = true;

  }

  // Send status to Serial
  if ( everythingOk )
  {
    if ( iterationsSinceLastStatusReportSent > ITERATIONS_FOR_EACH_STATUS_REPORT )
    {
      Serial.write(STATUS_OK);
      iterationsSinceLastStatusReportSent = 0;
    }
    else iterationsSinceLastStatusReportSent++;
  }
  else
  {
    if ( !batteryOk )
    {
      
    }
  }

  // Send sensor data to serial
  if ( sensorReportingOn )
