Pixawhk & OneShot125 for KISS ESC?

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Clifton Hipsher July 30, 2016 at 5:07pm

Why all the fuss over OneShot? I can see it if you are flying a racer. I have a racer with a CC3D and a set of the new BLHeli_S ESCs. Compared to the "regular" BLHeli ESCs I was using, the new ESCs perform significantly better. But even so, I really cannot see any reason to add OneShot or Multishot support to a Pixhawk.

Racers get the benefit of "smoother" throttle control, which translates into quicker and more precise attitude and speed control which can shorten your lap times, but on an AP rig flying an autonomous mission, who cares?

And as a final note, I believe this new batch of "mini" APMs and Pixhawks are just a marketing gimics.
Cala April 9, 2016 at 7:21pm

It's possible to use oneshot escs with pixhawk after it's being supported or they don't work?
David Cook November 12, 2015 at 12:42pm

I really would like to have an option to at least enable one-shot. I have a feeling my Tali H500 would handle MUCH better in the wind if the ESC's were one-shot enabled. and had active braking. oh well
GadgetGeek July 8, 2015 at 2:42pm

It would be nice to see this on apm and pixhawk.
- Bartek Wawrzynkiewicz > GadgetGeek July 9, 2015 at 12:11am
  
  looks like no way for oneshoot.
  
  Don't know why but they are not interested.
Nico T. February 3, 2015 at 5:20am

I'd like to see it too, especially on Mini APM FC used on small UAV.

Please consider adding it to next release.

Thanks.
- robert mcintosh > Nico T. March 31, 2015 at 10:56pm
  
  Any progress on this? oneshot is obviously the gold standard right now. Don't get left behind pixhawk.
  - Bartek Wawrzynkiewicz > robert mcintosh April 29, 2015 at 12:43am
    
    I'm also interested. Would be great to have this feature.
    
    Planing to build medium quad on 9" props. Have 3DR Pixhawk. But also love how my quads perform on Naze32 with OneShot.
Stian Indal Haugseth January 27, 2015 at 9:25pm

I would also like to see this in ArduCopter. I think any improvements should be considered even if it looks miniscule. It might turn out not to be miniscule in the longer run. Many small improvements here and there might give big results in the end.

I am also a believer of synchronous commands with less delay.
Andre K. January 18, 2015 at 5:53am

KISS ESC already supports 50-500hz PWM - what's supposed to be the advantage of "oneshot125 PWM" ?

APM/pixhawk is not for the super-smallest toys, - and no bigger motor/propeller can respond anyway to anything close to 500 changes per second - (and that's before I mention necessary calculatinos should be done that fast, not only PWM output - that does not make any sense)

So - while it's a nice marketing gimmick: common PWM goes between 900us 2100μs - and would give a nice resolution on most microcontrollers- this suggested protocol operates between 125-250μs - requireing a very accurate sampling to even ,maintain resolution.

I think this fous on speed is something more needed in smaller toy-quads, where APM/pixhawk is too large anyway. (or am I wrong ?)

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Pixawhk & OneShot125 for KISS ESC?

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