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Warning: Flybar Acro Mode

Posted by Rob_Lefebvre on February 2, 2014 at 11:11am

Warning of an important bug.

Do not use "Flybar" mode with Acro mode.  When these are combined, the servos stop responding to cyclic input.  If you switch to acro mode in the air, you could crash.

Use of Acro mode with Flybarless selected is totally fine.

I will look into this bug and fix it for the next release.

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Replies

  • Rune Eide Hansen July 29, 2014 at 8:45am
    Not in Acro mode, but it still does it in stab and alt hold mode.
  • Rune Eide Hansen July 29, 2014 at 5:26am

    Acro mode works with your fix

    • Rob_Lefebvre > Rune Eide Hansen July 29, 2014 at 8:39am

      But are the servos still stuttering?

  • Rob_Lefebvre July 28, 2014 at 10:50am

    3.1.4 contains an important bug fix for PX4/Pixhawk only.

    3.1.5 contains a couple more bug fixes for PX4, and one fix that applies to all hardware, but it's importance is up to you:

    Bug Fix to ignore roll and pitch inputs to loiter controller when in radio failsafe.

    That applies to the final stages of landing on RTL.  Couple guys had flyaways on radio-off RTL because their Tx were programmed to output roll and pitch commands on failsafe (went to 1000 PWM).

  • Rune Eide Hansen July 28, 2014 at 8:08am

    I assume its this one: Who wants to alpha test Flybarred Acro code?  ?

    It's based on V3.1.3 will I loose something else important downgrading from V3.1.5?

  • Rob_Lefebvre July 28, 2014 at 7:52am

    I did make a binary that fixed it, but it was never officially released as there wasn't enough participation from the community.  If you look around here, you'll see another thread where I posted a binary to try, and one guy did try it, and it was working.  But I didn't want to push a stable release that fixes it based on only 1 guy flying it.

  • Rune Eide Hansen July 28, 2014 at 5:34am

    I'm still having this issue with the newest firmware, hasn't it been fixed?

  • Gokay Akdoru March 14, 2014 at 2:01pm

    You didn't fixed it on 3.1.2 yet. Everything is okey on stabilize mode but there is one more problem with swashplate pitch angles. If i changed flying mode swashplate goes instantly down in every mode accept stabilize. May i do something wrong? Is it possible to limit maximum negative pitch angle -2 degree ?

    Here is my video
     

  • Andrew H February 3, 2014 at 11:37am

    Darn,  this spells trouble for my flybarred heli.  Will this be fixed in the future or am I going to have to switch heads?

    Andrew

  • Developer
    Randy February 2, 2014 at 4:39pm

    I've added this as Warning #6 on the AC3.1 release notes as well.  It's fallen off the "top content" section now that support is done in the APM Forum but hopefully some people will see it.

This reply was deleted.

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