A BETTER way to quad PID tuning? | My experience with PIDToolBox!
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- Опубликовано: 23 авг 2024
- I've always taken a more experimental approach to PID tuning by trying different Betaflight PID slider values and seeing how the quad reacts to each incremental setting. As you can imagine, this is a tedious and lengthy process. In this video I check out PIDToolBox to see if I can improve on what I feel is already a fairly good tune on the QAV-S Mini 3" freestyle quad.
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Items suggested in this video
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DJI FPV Goggle V2:
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DJI FPV Remote Controller 2:
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SpeedyBee F7 Mini 35A 3-6S 8-bit Flight Controller Stack:
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XING2 1404 4600kv Motors:
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Happymodel EP1 ELRS Receiver:
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HQ T3x3x3 Props
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Caddx Nebula Pro Nano Vista Kit
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Lumenier QAV-S MINI 3" Freestyle Quadcopter Frame
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Links
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PIDToolBox GitHub:
github.com/bw1...
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Videos you may want to check out
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#djifpv #fpv #drones
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New too quads and pid tuning is still intimidating me. Thanks for taking the time to make this video! 🇨🇦
Don't be intimidated, you can always try making little adjustments out in the field through the Betaflight OSD and then see whether the quad flies better or worse and keep refining. That's how I used to do myself.
Nice video and nice to see a growing interest in Ptb. One quick tip, sometimes the step resp is thrown off using FF (Eg the dc offset as well as exaggerated overshoot). To mitigate this I typically recommend just using the tool to get the optimal P to D balance. After that I analyze FF by looking at the drop in sp-gyro latency using the raw traces and the sp-gyro latency estimator (under the spec tool where you see the filter latency drop down). Happy tuning!
Thanks for the feedback and great job with the tool, quite helpful!
Thanks for your share. I found something similar chart line wave, maybe I should try low I to figure out what the best point.
Something similar to PID Toolbox??
Looks like you can add some more FF. Also worth setting dynamic idle if possible, I would try a value of 34.
I tried higher FF and the plots showed overshoot.
Nice video and a good looking build you got there! Im doing similar sized build on a Tadpole hd xing2 1404 4800kv caddx vista. How did you set up the filters in the filters tab ??
I reduced the filter sliders nearly to the end and then ensured that the RPM filtering was on. This quad is fairly noise free and I get the best results that way.
Thanks for the video. Although the analysis is very interesting, it would have been more beneficial and complete if you included the part on how you used the toolbox to adjust your settings.
Honestly I was going to do that initially but the videos from PIDToolBox themselves are so good that there's no further value I can add. I've linked to the how-to video in the description.
I suppose I’m still one of those flash defaults and enjoy. Tuning I figured by now was supposed to become easier. Seems tune chaser pilots have become harmonic engineers these days. Then again anyone who’s flown my quads all say “how do you get such smooth flights? This things tune is horrible” lol!!! I suppose it’s all in the sticks.
PIDs are very setup and pilot style dependent so what may work for my quad most likely won't work for yours. Perhaps you got lucky and the defaults are a close enough match for your type of flying and setup. That's never been the case for me, especially with me being on 4s. I've heard that the defaults are more geared towards 6s.
@@Mangorille
Good video.
P, D, FF actually have proper values that they should be, for me. But “I” controls how much drift/locked in control you prefer. You can also raise or lower PIDs to preference after finding the proper balance ratio, that’s super personal too.
Some hate the overturned feel, and others love it, to the point of having a switch change to a conservative tune, on prop issues, and run at the limit at all other times.
Also options outside of PIDs are more dependent on preference like idle, airmode, crash handling, thrust stuff, and others.
Definitely more than one way of doing it, and feel in the air can be massively different I can make my 5” feel like a locked in 65mm whoop or a 10” drifty boy. All that is definitely preference.
@@lemonsquareFPV For sure, pilot preference plays a big role. I remember looking at the PIDs used on the Rotor Riot HD1 and you see that the RR pilots run massively different PIDs
@@Mangorille yeah, all this changes through the Betaflight version as well.
I found long ago that some numbers just don’t transfer between some of the versions and I make sure to retune all my quads with every major change of part or firmware.
Personally I just do filters, P:D balance/MAX, and FF on blackbox, everything else is by feel… a perfect tune from scratch is generally less than 15 minutes and changes are usually less than 5, the more you practice the easier and faster it gets, and the more you find what you like.
Unless your build is identical with exactly the same parts, and you prefer exactly the same feel… the tune will be different…
Putting better bearings on my motors and certain props change my tunes significantly for example. Especially P:D balance and filtering.
Also depends if you want just good enough flight or a specific feel and performance, that’s obviously huge.