Akira 5.0.1

Discussion in 'MōVI M15' started by Juan Lima, Jul 31, 2016.

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  1. Juan Lima

    Juan Lima Member

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    Hi guys! Ready to upgrade to 5.0.1 Just waiting cause I have two big commercials this week.
    Want to know your impressions about this release prior to upgrade.
    By the way one of the commercial has a lot of POV shots so I made this gadget (pic). Some kind of Mimic POV viewfinder. I tried FVP glasses in the past but DPs don't feel comfortable with those so we are trying this.

    Best
     

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  2. Andy Johnson-Laird

    Andy Johnson-Laird Administrator
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    Juan: My advice (which may be worth precisely what you're paying for it! :) ) is that, whatever you do, do NOT upgrade to new firmware before your two big commercials this week. Regardless of the state of Akira 5.0.1 (and as far as I know there are no major issues with it), it's just not worth the risk. Do the upgrade after the gigs when the pressure is off.

    Make sure you have a copy of the prior version of the firmware and a MoVI jumper cable so that if things go awry, you can regress back to the prior firmware version.

    This is not advice specific to MoVI -- it's just what I believe to be "best practice" when it comes to firmware (or software, for that matter) upgrades.

    Hope this helps!
    Andy

    Forensic Software & sUAV / Drone Analyst : Photographer : Videographer : Pilot (Portland, Oregon, USA): Trees=2, Ground=1, Props=11. :(
    The Ground Is The Limit™
    ---------- Forensic Drone Analyst : Forensic sUAV Analyst : Forensic Unmanned Aircraft Analyst : Forensic Drone Expert
     
  3. Steve Maller

    Steve Maller UAV Grief Counselor

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    To add to what Andy said, if your MōVI is working, do not update yet. Give yourself a week (or more) of downtime to get used to the new firmware. There are a lot of new options, and your currently-saved configurations may not work, meaning you can count on doing extensive re-balancing and tuning. I've been where you are...and it can be a world of hurt.

    That said, the Akira upgrade is well worth the time to get running. But make sure you have the time.
     
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  4. Andreas Riem

    Andreas Riem Member

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    Steve, what are your first impressions on the official Akira? How does it go now with the lightweight set-ups, is it still required to put some extra weight onto the M5? We are now able in Germany to fly without single permit up to 10kg - so Alta6 for smaller jobs now is possible.
     
  5. Steve Maller

    Steve Maller UAV Grief Counselor

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    As per my advice, I have not yet changed the firmware on mine. I've been running the Beta version for quite some time, and it's great.
     
  6. Dylan Glockler

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    Installed it earlier this week, had a test flight with the ALTA 6 with no issues. Did basic ground work tests, majestic and time-lapse with no issues. The only thing I've noticed is that when I connect the app while inverted, the motors experience about two seconds of erratic behavior before settling into normal operation.
     
  7. Graham Futerfas

    Graham Futerfas Well-Known Member

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    I've noticed the occasional 2-second Movi freak out when I connect the app, too. It's not every time I connect the app, but sometimes when I'm in the app, quit out to the desktop screen, and then re-start the app -- the Movi vibrates and oscillates for a few seconds when it connects. One of my grips was holding it the other day when I engaged the app, and it really startled him when the Movi went nuts.
     
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  8. Tuukka Ylonen

    Tuukka Ylonen Member

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    I upgraded mine into Akira and I am not happy with it. On my drone I have a perfectly balanced Red Epic and M10. I did the autotune on 75 per cent and I have very bad jitter problems that I did not have with the earlier firmware with the same setup.

    The Movi also drifts a lot when the drone is waiting for takeoff. The Movi is on remote in this case. Not happy at all unfortunately.
     
  9. Graham Futerfas

    Graham Futerfas Well-Known Member

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    Hi Tuuka, you may need to work on your expert tuning, most likely, to get rid of these problems. Freefly's given us more control and tuning options, but they take a bit of work and trial and error. With new firmware, you'll probably need to go through all of your settings.

    With your Autotune set pretty high at 75%, your Pan, Tilt, and Roll stiffness values are probably set very high, so you may try to manually individually decrease them a bit if they're buzzing and\or oscillating.

    Your Output and Gyro filters may need adjusting, as well, depending if you're getting high frequency buzzing or low-frequency oscillations. With Output Filter set to 1 overall, you can adjust individual Pan, Tilt, and Roll values. If you change the Output filter # to a higher value, you lose individual control.

    Here's a link to the Akira Manual, which details tuning procedures and expert controls, starting on page 18:

    http://d27w8s76bjlz9v.cloudfront.net/wp-content/uploads/2016/07/29095401/Akira-Manual_B_011.pdf

    What remote control are you using, that's giving you a lot of drift? Movi Controller? Mimic? I've always seen some slight drift from the Mimic, especially noticeable on longer lenses.
     
  10. Graham Futerfas

    Graham Futerfas Well-Known Member

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    I just noticed Freefly released a completely new video tutorial on tuning in Akira. Definitely worth checking out:
     
  11. Tuukka Ylonen

    Tuukka Ylonen Member

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    Yes, was aware of this and did the tuning accordingly. Mine just kept jittering heavily even after perfect balancing and 70% autotune. I tried the filter values but all I got at any value was this fast jittering, not the slow one in the video with bigger filter values.

    I am using a Futaba RC transmitter as the remote controller.

    Downgraded FW and works much better now.
     
    #11 Tuukka Ylonen, Aug 11, 2016
    Last edited: Aug 11, 2016

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