How Does Iris Calculate Altitude?

I don’t think that Iris does has a barometer or other altitude-sensing device, apart from the GPS unit. I know that GPS can approximate altitude, but not very accurately. So how is Iris able to land so nicely in Land or RTL flight modes?

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  • Well seeing this is already opened, and instead of making a new thread.  How do I calibrate the altitude?  I was taking it up to test the altitude accuracy, and when it just hit the 2 meter mark on the controller it was way above me, maybe twice my height, and I am about 5'6".  When I landed it, the reading was -1 meters.

    So how do I adjust the altitude so I know it is dead on.  I don't want to fly above the 400 foot mark.  So to be safe I don't want to climb above 350 feet, just want to know the height I am at.

    • Good question Nick, I have the same issue, it allways gives me like 5 meters higher then it should be, Would like to be able to calibrate it.


      Lets wait together for someone to answer, you've been waiting for a long time haha :)

  • Developer
    It has a barometer on-board.
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