[theluxembourgishguy]

Hey, just to make it a bit easier, here is a video where the process is explained very well, starting from 9:30. https://www.youtube.com/watch?v=QeuSq71pYF0

Btw, if you are completely new to Betaflight, OpenTX etc, I highly recommend that you follow Joshua’s channel, granted he works with quads, but everything that relates to OpenTX, Betaflight etc is like 99% the same for Tris, so the quad community is a very helpful source for information, especially because it’s much bigger than our little Tri-family 🙂

Good luck 😉

[theluxembourgishguy]

If you used the KakuteF4 V2 and you’ve wired it up like in the video, just post the following lines into the CLI, type save and ENTER, there is a good chance your issues will be fixed afterwards.

resource MOTOR 1 A03
resource MOTOR 3 B00
resource MOTOR 4 NONE
resource SERVO 1 C08
resource LED_STRIP 1 NONE

There is a chance that it won’t accept the command immediately because every resource needs to be freed before it can be reassigned, in that case just free up the corresponding motor by typing “resource MOTOR “number you need” NONE”; ENTER; and then re-assign it.
You can also use the Diff that I posted on the first page of this thread, my LR flies perfect like that, and it was done with an LR that was wired up exactly like in David’s video.

[theluxembourgishguy]

Hi Flacke
Have you already tried putting props on (in save circumstances of course?). Does the quad flip out or is it able to take off?
For a Multirotor it’s quite normal to have the props spinning whenever it is armed, but you can change it in Betaflight Configurator (enable Motor Stop in the Configuration Tab). However I strongly discourage you to do this. Contrary to a wing, a multirotor constantly requires the motors to spin in order to stabilize itself. The speed at which you see the motors spinning is the idle throttle , which your Tri will never go below when it’s armed, hence also in flight. Personally, to enhance your Tri’s stability at 0 throttle during flight, I would even recommend slightly raising the Idle Throttle Percentage from the default value or avoid very low throttle positions.
For the strange noises and behavior you’re reporting, I can’t really tell from your video if there’s something strange going on. I’d recommend putting small props (like 5 inch props) on your LR and try hover it. It will struggle to take off with such small props, but at least you’ll see if it’s able to fly. If it flips out, check your motor-order and motor-directions 😉

[theluxembourgishguy]

Nice one!
If you have wired up your electronics in the same way as in David’s video, I suggest you enable current metering (Onboard ADC), especially for long range flights I find that very useful!
Have you had any luck with experimenting with the PIDs?

[theluxembourgishguy]

Thank you very much Claude, I have to admit, with BF 4.0.3 and your PIDs, the Tricopter LR flies like a charm!
I did the whole autotune and taletune process under dRonin, but this still flies a lot better! Only on very low throttle after a punchout (the kind of maneuvers the TriLR is not made for anyways), yaw control is lost near completely… I’m not a tuning specialist by any means, but tweaking Yaw PIDs, Airmode parameters, TPA and Idle Throttle may solve those issues.
To make BF work, I just had to readjust the throwangles and center on the servo and re-assign motor outputs (contrary to dRonin, BF expects Motor 1 to be the tale motor). Also, I activated Airmode and Anti Gravity, but I still have to test how the copter is doing with it enabled vs. disabled.
In any case, my first flight under BF4.0.3 was a plain success, I got 25 minutes of stable, moderately aggressive flying on a (quite heavy) 5000mAh battery and the recommended electronics.
Believe me folks, this firmware setup is definitely worth having a look.
My Dump and Diff configs are below, but all credits for the tune go to Claude 😉

Attachments:

1. TriLR-Config-Diff-1.txt
2. TriLR-Config-Dump-1.txt

[theluxembourgishguy]

Hey Claude

I would also be hugely interested in a complete Config Dump of your setup if you wouldn’t mind.
I’ve build the Tri LR with the suggested Electronics Pack, and it flies ok under dRonin, but I’m just not happy with that firmware, my FrSky Telemetry is buggy, Smartaudio seems to be doable but only with some programing skills which I don’t have, and overall the interface of the dRonin GCS drives me a bit mad… Apart from Autotune, I reckon there are mostly downsides to using dRonin instead of Betaflight. Ok the rant is over 😉
Merci beaucoup if you could share it!

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