3.1 Autotune won't engage

I have the 3.1 on my hex and it seems to be flying pretty well. I could use some help though in getting Autotune to engage. I have been through the instructions and tips at the beginning of this thread. The 2 position switch has plenty of throw and works well when I assign any other function to it. I have checked and re-checked that sticks and trims are all centered, and verified that through the radio calibration section. I assign the 3 position switch to Stabilize, Alt hold, RTL. All modes show up fine in planner. I switch to Alt hold then put the 2 position to high and nothing happens. After trying everything I could, I went to the field just to see if maybe Auto Tune doesn't show up as a mode and would work anyway, but when I switched to autotune from alt hold nothing happened. I have assigned other modes to the 2 position switch (acro, land,rtl) and they all work fine with the same switch, just can't assign autotune. When I set it and write it, it shows up as assigned, but will not switch to autotune from Alt-hold.
Anyone else experience this and get it to work?
Thanks in advance..

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Replies

  • I also had this problem once with a overpowered hex. The problem was that the throttle stick in alt-hold was not centered. I did a throttle-middle calibration. Then it worked! Also this might be caused if any other stick has a trim set on the transmitter.....

  • I had the same problem. What you need to do is fly in ALt hold AND make sure your throttle is around 50  percent or lower while hovering. 


  •  Reading the link below ..  looks like it has to be in the air in ALT Hold to invoke.  My older versions didn't need to do this. 

    I'll give it a try. 

    http://diydrones.com/forum/topics/can-not-invoke-autotune-flight-mo...


    Frank said:

    Me as well with Version 3.3.3.  

    I use this function without an issue with my other APM and Pixhawk boards.  Is there any solution? 


    Thanks,

    Frank

  • Me as well with Version 3.3.3.  

    I use this function without an issue with my other APM and Pixhawk boards.  Is there any solution? 


    Thanks,

    Frank

  • Having the exact same problem... since there weren't any replies I'm assuming you solved it?  What did you do?

  • T3
    Which channel are you using for both flight modes and for autotune?
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