Rangefinders (landing page)
Copter/Plane/Rover support a number of different rangefinders including Maxbotix Sonar and Pulsed Light LED range finders.
[site wiki="plane"] .. tip:
If you get a "Bad LiDAR Health" message in *Mission Planner* this is caused because the rangefinder isn't enabled for landing. This is done through the ``RNGFND_LANDING`` parameter and if set you should see the message disappear.
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[site wiki="copter"] .. note:
Downward facing Lidar are used in flight modes which have height control, such as Altitude Hold, Loiter and PosHold Mode. The data from the sensor will be used until you exceed RNGFND_MAX_CM, after that it switches to the barometer. Copter-3.4 (and higher) includes support for :ref:`Terrain Following <terrain-following>` in Auto mode. Copter-3.5 (and higher) can use lidar for :ref:`object avoidance <common-rangefinder-objectavoidance>`.
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Follow the links below (or in sidebar) for configuration information based upon your set-up.
.. toctree::
:maxdepth: 1
- [site wiki="rover"]
- Sonar Sensors <sonar-sensors>
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LightWare SF20 / LW20 Lidar <common-lightware-lw20-lidar> LightWare SF10 / SF11 Lidar <common-lightware-sf10-lidar> Lightware SF02 Lidar <common-rangefinder-sf02> Lightware SF40c (360 degree) <common-lightware-sf40c-objectavoidance> Maxbotic I2C Sonar <common-rangefinder-maxbotixi2c> Maxbotic Analog Sonar <common-rangefinder-maxbotix-analog> TeraRanger One Rangefinder <common-teraranger-one-rangefinder> TerraRanger Tower (360 degree) <common-teraranger-tower-objectavoidance> Leddar One Lidar <common-leddar-one-lidar> LIDAR-Lite <common-rangefinder-lidarlite>
- [site wiki="copter"]
- Analog Sonar (AC3.1) <sonar>
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