The EK2_RNG_USE_HGT parameter sets the height (expressed as a percentage of the maximum range of the range finder as set by the RNGFND_MAX_CM parameter) below which the range finder will be used as the primary height source when the vehicle is moving slowly.
When using a height reference other than GPS, the height datum can drift due to air pressure changes if using baro, or due to terrain height changes if using range finder as the primary height source. To ensure that a consistent height datum is available when switching between altitude sources, the WGS-84 height estimate of the EKF's local positi norigin is updated using a
single state Bayes estimator,
If rngfinder or gps height data is lost whilst being used, there will be a fall-back to baro data.
Previously we added the rally-point altitude to the calculated return altitude on the final line of this function meaning the fence's altitude check was not performed on the final value. This change adds the rally-point altitude as the first step so it is included before the fence altitude check.
This change also converts the return alt to an alt-above-home so that it can correctly be compared to the fence (previously a terrain-altitude might have been compared to an alt-above home)
This definition has been false for over a year and we have not heard of any users wanting to delay the disarming until the pilot's throttle goes to zero. Removing this feature removes a small bit of complexity from the code.
This modifies sport mode to be structured like althold and loiter flight modes so that ongoing maintenance of the modes is hopefully easier.
Also changes throttle feedback to occur from mid-stick
throttle_avg_max is the total average throttle level (expressed as a number from 0 to 1) that the motors can safely be raised to in order to maintain attitude control. This level can be higher than the pilot's or autopilot provided throttle level.
Previously passing in a negative throttle_in could result in a negative throttle_avg_max being returned.
priseborough
Tom Pittenger
KenjiKoseki
Tatsuya Yamaguchi
LukeMike
Randy Mackay
Francisco Ferreira
yHoriuchi
Kunihiro.Yoshida
Leonard Hall