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  1. superduke2007

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    Even though 3DR stopped support for Solo, Drotek has aded RTK injections functions on a latest firmware release for the drone. The firmware is available on our Github :

    [​IMG]
     
  2. Jhulz™

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    @Pedals2Paddles did you revert your MOT_THST_MAX parameters to the old value of 0.940000 from 1.3.1
    or did you stick with new value of 0.965000?
     
  3. fpvsteve

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    Yes. I ordered a month ago with still no delivery date in sight. Apparently there is a chip supply shortage for the m8p by ublox.
     
  4. Pedals2Paddles

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    I am at .94. but TBH I haven't researched much into that vs .965
     
  5. Pedals2Paddles

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    I was looking a little more at this today while eating thin mints and watching reruns of Star Trek. I've been watching the PWM output at various MOT_THST_MAX parameter settings to see where it takes us. We know the ESC saturation problem occurs at and above 1870. So we don't want to exceed that, either on purpose or by accident.
    • With MOT_THST_MAX set for 1, the motor output PWM goes to the throttle stick's corresponding maximum of 1897. Clearly higher than the 1870 point at which Wesley Crusher is finally killed off in an accident in engineering.

    • With MOT_THST_MAX set for .94, which is the "old" lowered cautious maximum, the motor output PWM stops at 1850. This is well below the core breach point. This is where the Solo's normal firmware stops.

    • With MOT_THST_MAX set for .965, which is the "new" default on 1.5.2 and 1.5.3, the motor output PWM stops at 1869. While on the razor's edge, that's still below the failure point. I have to assume this is not a random coincidence. It is intentional and still below the danger level.
    In the commit on github, it says "ROMFS: Allow use of full ESC output. Testing with Solo ESC's shows that saturation occurs at a PWM value of 1870." So it looks like they've done just that... allowed it to use the full safe range from 1000 to 1869 since the prior cut off at 1850 was unnecessarily low.

    This leads me to two conclusions:
    1. The new higher default of .965 remains safe and there's nothing to worry about.
    2. The Site Scan solos, at least some of them, still have same ESCs as the rest of us.
     
  6. Jubalr

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    Nicely done Matt. Makes sense too. I'll leave mine where it is until the next time I have to change something. I was going to ask you Kirk or Picard, but you answered that..
     
  7. Pedals2Paddles

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    lol. TOS never kept my interest. I like TNG and Voyager.
     
  8. Jhulz™

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    So is it pressumably safe to set MOT_THST_MAX to 0.965?
    I revert mine back to 0.94 but reading above comments, it leads me back to use the default figure of 1.5.3
     
  9. speatuk

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    I just knew, if I waited patently someone would get to the bottom of it.

    Well done P2P.

    As my son would say;

    "Your a ledge"

    That does actually make perfect sense.

    1869, yes it's very close to the bone, but its not 1870.

    You get my vote of confidence mate.

    :)
     
  10. Pedals2Paddles

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    It is indeed presumably safe. That said, the difference in thrust between 1850 and 1869 is very small. So if you've already changed it to .94, I also don't think you need to drop everything and go change it immediately to restore some long lost flight capability. I put mine back to .965 so I have maximum power, and because I eat my own dog food here.
     
  11. Jhulz™

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    Great advise, Thanks ;)
     
  12. fpvsteve

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    Thanks for putting substance to this topic Matt.
    I flew several packs with the 0.965 settings by now and everything is fine.

    I don't believe that the Sitescan Solos come with different ESCs. Otherwise we would have seen evidence in the forums in the meantime. ;-)

    So no reason for me to go back to the "consumer version "
     
  13. pyrate

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    LOL there would be no TNG or Voyager without TOS
    I'm actually very impressed with the new Kirk, they cast it very well
     
  14. Pedals2Paddles

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    And I'm eternally grateful for the oldies :)
     
    pyrate likes this.
  15. Joe Horn

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    "You've controlled my drone's every move. You've told it what to eat, think and say. Then, when it shows a glimmer of independent thought, you strap it down, inject it with firmware, and you call it an upgrade! You BET I'm agitated!!!" -- Riker, paraphrased (ST:TNG "Frame of Mind")
     
    speatuk, carpy and Pedals2Paddles like this.
  16. n8lbv

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    Thank goodness for ST reruns!!!
    And also thank you Matt!
     
  17. pater

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    Randy put video showing new feature drone following drone where Solo runs with ArduCopter 3.4.
     
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  18. DDUB806

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    Sorry but I'm having trouble doing update and hope I didn't install any harsh files by accident, please can someone post a video showing how to complete update, I hate computers with a passion! Please and thank you.
     
  19. carpy

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    See this video by @MaYHeM.vapes
     
  20. Greg Parker

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    Mine flew fine last fall above 12,000' ASL