'3d' reversible speed controllers
« on: February 05, 2019, 05:45:06 am »
I am building a quad with 4 Graupner '3d' reversible speed controllers (link below). These are matched to the motors that ship with the Graupner 300 alpha. Does libre pilot support these stunt '3d' speed controllers?

https://www.graupnerusa.com/ULTRA-CONTROL-20A-3D-ESC-OneShot.html

Re: '3d' reversible speed controllers
« Reply #1 on: February 05, 2019, 06:24:36 am »
Yes and no.  LP supports reversable ESCs, but I suspect this has mainly been tested on cars.

There may be some people here that have done this.  I haven't.

Arming usually requires throttle stick at the bottom, which is full reverse power for this setup.  Making sure that all works safely and correctly would be at the top of the list.  I would guess that you want to set up arming on a switch.

karla

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Re: '3d' reversible speed controllers
« Reply #2 on: February 05, 2019, 06:54:51 am »
I am building a quad with 4 Graupner '3d' reversible speed controllers (link below). These are matched to the motors that ship with the Graupner 300 alpha. Does libre pilot support these stunt '3d' speed controllers?

Cool. Are you attempting fly inverted with a quad?
Why not?
Mystery why no one tried that before.

Re: '3d' reversible speed controllers
« Reply #3 on: February 05, 2019, 06:19:31 pm »
My principal reason for this is that I happen to have 4 of these graupner 300 alpha quads that I want to outfit with a FC that supports full flight operations via telemetry. This is so I can fly with a companion computer that will handle higher level flight functions, while delegating the whole keep it in the air thing to the FC. Here's a link to some old demo video of the project's GCS. Right now, I have an orange pi zero onboard and I've worked out all the UAVTalk protocol I need. But I only just started working with Libre Pilot and ran into this issue with it's reversible escs.


(Turn on Closed captioning for text commentary) (Cliff changed youtu.be to youtube.com so it would display in forum)

I've evaluated clean/beta flight and found MSP to be lacking, (it can't replace a transmitter). Then I moved on to arducoptor, which would probably work but I found MavLink to be a mess of poorly defined messages that vary substantially between copter/plane and GCS implementations. Then I found LibrePilot and UAVTalk, which seems much cleaner and organized, so here I am. I am principally a java developer and am weak in the C world, so any help you can offer is greatly appreciated.

Mark
(Having a hard time getting the forum to display my youtube link, cut and paste youtu.be/cCmRFS-1aY4 to see the demo)
« Last Edit: February 05, 2019, 10:47:07 pm by TheOtherCliff »

Re: '3d' reversible speed controllers
« Reply #4 on: February 05, 2019, 07:12:44 pm »
Attached is a screen shot of my output configuration.. all the motors spin as expected when you adjust the sliders with live testing on. Still can't get the quad to arm via GCS joystick control. I've followed all the instructions given here..

https://librepilot.atlassian.net/wiki/spaces/LPDOC/pages/14221378/Control+vehicle+using+joystick