ARSPD parameters

7 parameters in the ARSPD family. ArduCopter 4.7 only — other vehicles share many of these names but not always the same ranges or meanings.

ARSPD_ENABLE

Airspeed Enable

Enable airspeed sensor support

User level

Standard

Values

Value

Meaning

0

Disable

1

Enable

ARSPD_OPTIONS

Airspeed options bitmask

This parameter and function is not used by this vehicle. Always set to 0.

User level

Advanced

Bitmask

Value

Meaning

0

SpeedMismatchDisable

1

AllowSpeedMismatchRecovery

2

DisableVoltageCorrection

3

UseEkf3Consistency

4

ReportOffset

ARSPD_PRIMARY

Primary airspeed sensor

This selects which airspeed sensor will be the primary if multiple sensors are found

User level

Advanced

Values

Value

Meaning

0

FirstSensor

1

2nd Sensor

2

3rd Sensor

3

4th Sensor

4

5th Sensor

5

6th Sensor

ARSPD_TUBE_ORDER

Control pitot tube order

This parameter allows you to control whether the order in which the tubes are attached to your pitot tube matters. If you set this to 0 then the first (often the top) connector on the sensor needs to be the stagnation pressure (the pressure at the tip of the pitot tube). If set to 1 then the second (often the bottom) connector needs to be the stagnation pressure. If set to 2 (the default) then the airspeed driver will accept either order. The reason you may wish to specify the order is it will allow your airspeed sensor to detect if the aircraft is receiving excessive pressure on the static port compared to the stagnation port such as during a stall, which would otherwise be seen as a positive airspeed.

User level

Advanced

Values

Value

Meaning

0

Normal

1

Swapped

2

Auto Detect

ARSPD_WIND_GATE

Re-enable Consistency Check Gate Size

This parameter and function is not used by this vehicle.

Range

0.0 to 10.0

User level

Advanced

ARSPD_WIND_MAX

Maximum airspeed and ground speed difference

This parameter and function is not used by this vehicle. Always set to 0.

Units

m/s

User level

Advanced

ARSPD_WIND_WARN

Airspeed and GPS speed difference that gives a warning

This parameter and function is not used by this vehicle. Always set to 0.

Units

m/s

User level

Advanced