Diagnostic data Sensor MCU

                float1                    : Float field 1 (float)
                float2                    : Float field 2 (float)
                int1                      : Int 16 field 1 (int16_t)
                char1                     : Int 8 field 1 (int8_t)

def sensor_diag_encode(self, float1, float2, int1, char1):
                '''
                Diagnostic data Sensor MCU

                float1                    : Float field 1 (float)
                float2                    : Float field 2 (float)
                int1                      : Int 16 field 1 (int16_t)
                char1                     : Int 8 field 1 (int8_t)

                '''
                return MAVLink_sensor_diag_message(float1, float2, int1, char1)