Land Waypoint with the IRIS+ question

Posted by ariel seidman on October 31, 2014 at 4:38pm

I'm a recent convert from Phantom to IRIS+ so please excuse all the newbie questions.  I'm getting familiar with all the powers of the IRIS+...

If the altitude of my landing zone is different then my launch point by 100 feet how does the Land Waypoint adjust for that?

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Replies

  • Justin H. November 6, 2014 at 8:21am

    And congrats on the conversion! I've never flown a Phantom, what are the differences that stand out to you the most?

  • Mark Prince November 1, 2014 at 7:55am

    When you arm the Iris it zeros the currently measured barometric pressure altitude to zero. It then uses that value as zero feet home altitude. If you land at an altitude that is higher than the home altitude it senses when the altitude measurement stops decreasing as it's landing. 

    mp

    • ariel seidman > Mark Prince November 1, 2014 at 3:17pm

      Thanks Mark!

      Super helpful!!

  • SkyRover October 31, 2014 at 5:50pm

    My understanding is that when auto landing the pixhawk (flight controller for the Iris if you didn't already know that) to an extent uses its barometer to judge altitudes. Landing is pretty simple though as it just reduces power and slowly shaves off altitude till it touches down. I dont think it uses the home alt as a reference point for where the ground is.

    http://copter.ardupilot.com/wiki/land-mode/

    After checking the Land mode page from ArduCopter, which is pretty much the wiki for your quad.

    It appears that the flight controller will recognize that it has landed, but wont disarm itself unless youre under 10m above home alt. but that doesn't mean you can just manually disarm it.

    • ariel seidman > SkyRover November 1, 2014 at 3:17pm

      Thanks SkyRover!!

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