Betaflight 4.3 Filters Tab | COMPLETE WALKTHROUGH PART 13

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Watch all the videos in this series at: • Betaflight 4.3 Install...
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00:00:00 - Welcome to the Filters tab!
00:00:41 - Start tuning with sliders!
00:02:31 - What's a lowpass and notch filter?
00:03:36 - Why do we need filters at all?
00:05:47 - Gyro and Dterm filter multiplier sliders
00:06:52 - Gyro Lowpass Filter
00:08:21 - Gyro Lowpass Filter - Min and Max Cutoff Frequency
00:08:44 - Gyro Lowpass Filter - Static vs. Dynamic
00:09:50 - Gyro RPM Filter
00:10:59 - Gyro RPM Filter - Harmonics Number
00:12:03 - Gyro RPM Filter - Min Frequency
00:12:46 - Dynamic Notch Filter
00:14:40 - Dynamic Notch Filter - Min and Max Frequency
00:15:43 - Dynamic Notch Filter - Q Factor
00:16:08 - Dynamic Notch Filter - Notch Count
00:16:33 - Gyro Notch Filters
00:17:33 - Now we move from gyro filters to dterm filters
00:18:32 - D Term Lowpass Filters
00:19:56 - Filter Type: PT1 vs BIQUAD
00:21:31 - Yaw Lowpass Filter
00:22:26 - Profile Independent Filiter Settings
00:23:21 - Sliders On/Off selector
00:23:51 - If you want an in-depth PID tuning guide, go here
Chris Rosser's PID tuning guide: • Betaflight 4.3 Complet...

Пікірлер: 70

@PIDtoolbox 2 жыл бұрын

Great great overview of the filter tab! Great series too! Thanks for this. One thing most people don’t know is the yaw lowpass filter is actually filtering yaw Pterm. This has essentially the same effect of filtering the yaw gyro except you won’t see it’s effect in the post filtered gyro (gyro_scaled) because that debug is a stage before P is filtered.

@KingFPV 2 жыл бұрын

Thanks again JB for another excellent, detailed video that I will likely have to watch again beginning to end a few times more!

@MCsCreations 2 жыл бұрын

Really fantastic info, Joshua! Thanks a lot! 😃 Stay safe there with your family! 🖖😊

@dasppg9737 Жыл бұрын

Have an apex 5” and 4”. Left pids alone and turned filters way down. They fly so much better! I’m not good at tuning but these frames have great resonance characteristics

@willpowerfpv3246 2 жыл бұрын

Thanks for this series, Jb! Been loving 4.3 on most of my rigs since rc3, and it's incredible. Your tuning guide got me the best tune I've achieved on my own. I started building last year with the Xilo kit.

@MrSabram07 2 жыл бұрын

I still don't get PIDs and filters but thanks to this video I dont get these a little less, if that makes sense. Thanks for these type of videos Mr Bardwell

@hateeternalmaver 2 жыл бұрын

tbh 4.3 flies already pretty well for me with defaults... ;D just did a little test today and was very impressed. cheers

@CappielloFPV 2 жыл бұрын

Thanks so much … learning everyday something new !

@skyflowfpv Жыл бұрын

Yoooo, If we could see a visualizer like you used while watching black box logs, it would be a game changer. Visualization is key to understanding and you showing that made way more sense in how filters work

@findler 2 жыл бұрын

Thanks, definitely going to watch it at some point! :)

@zg6038 2 жыл бұрын

what a awesome series of Videos

@calebnehrbass4838 9 ай бұрын

Thank you so much for covering the filter values outside of the sliders anyway! I just pulled out a 6 year old build with an spracing f3 v1 and it doesn't support any version of betaflight that has access to the sliders, to my knowledge at least.

@olegostap7991 4 ай бұрын

Thanks!

@darkness1943 2 жыл бұрын

Thank you very much...🤟🏻

@mikemarucci913 2 жыл бұрын

I think this issue with people not going after black box data is that they believe it’s too complicated or too time consuming when in reality it takes all the guess work out, makes everything easier and quicker…thanks to Chris Rosser he pushed me into looking at black box data, before I saw his videos on 4.3 tuning guide I always thought about it, but looked at it as too big of a mountain to climb but it really isn’t rocket science it’s just science.

@sylvanlight120 2 жыл бұрын

With 4.3 filter tuning has never been easier... I just opted for a preset and it works very well... Warm motors at default PID's so I think I can still push the tune.

@leoponce82ponce Жыл бұрын

15:54 , I think the narrower the notch the higher the delay. Higher precision in the filter comes at the cost of latency.

@velvix 2 жыл бұрын

Hello JB Would you make a video about modifying the betaflight fonts that woud be very cool .awesome video.

@MushFPV 2 жыл бұрын

Can you do a video on building the AOS 3.5 V2? Btw this video is very helpful!

@415bryant 2 жыл бұрын

I think it's a rabbit trail and not a bunny trail. hahahaha. Thanks again for the great video!

@glytch5 2 жыл бұрын

turning down filters makes me think of overclocking a CPU. How far can you push the overclock? and how long can the quad take it?

@hboost1 2 жыл бұрын

Great content! Question when I input full yaw to either left or right, it shoots up full power. Is this normal! I have a geprc mark5 running 4.3. Thanks

@leoponce82ponce Жыл бұрын

If I boost the D-gains and decrease the D term filter multiplier, could that help reduce the risk of hot motors introduced by the higher D-gain?

@stopmobro4332 2 жыл бұрын

I just updated my drone to 4.3, it flew incredible the first flight, but the second flight it seemed way worse, I didn’t crash, change anything in BF, or anything if the sort. Any clue why this would happen anyone?

@brettalexander.studio Жыл бұрын

My setup keeps turning filters all the way up everytime I save? Not sure why it won't allow me to change my filter settings 😕? (Bi directional dshot is enabled) kakute H7 2x hobbywing 60a escs

@JB-cq2wo 2 жыл бұрын

so only use sliders and turn down min frequency in dynamic notch filter to 90 ?

@sqb3832 2 жыл бұрын

Greetings, a question when I put some rates or profiles of the presets, I deactivate the sliders of the filters, is it normal?

@nickrich710 2 жыл бұрын

I am hoping someone can help me I am trying to put air mode on my radiomaster tx16s don't know how to do it is it a video on how to do it

@duncanpope2899 2 жыл бұрын

finally some good content

@idfpv6510 2 жыл бұрын

🤘🤘🤘🤘🤘

@velkrofpv6654 2 жыл бұрын

hey Joshua ive been wondering why Betaflight doesnt have an AUTO TUNE feature.. i feel like it could definitely be possible with the correct code.. any thoughts on an AUTO TUNE feature you could set your quad on and fly a set amount of time while your pids and filters set themselves for perfect flight characteristics? this has to be possible.. right?

@JoshuaBardwell 2 жыл бұрын

It has been tried in the past. In short, it doesn't work very well. At least not yet.

@velkrofpv6654 2 жыл бұрын

@@JoshuaBardwell will be an exciting future for newcomers when that day comes. Thanks 4 all your knowledge sir

@paulblase3955 10 ай бұрын

In my case my (fairly heavy) quadcopter immediately flips upside down when I rev up the throttle. I definitely need to work on the filters.

@JoshuaBardwell 10 ай бұрын

Insta-flip is likely to be caused by one of these things. I don't think it's filters. Here are the things i suggest you check: 1. Clockwise prop installed on counter-clockwise spinning motor or vice versa. Double check the motor direction is as expected and then double check that the correct prop is on each motor. 2. Flight controller not facing forward. Go to the Setup tab in the configurator. Tilt the quadcopter on all axes (pitch, roll, yaw) with your hands. The 3D model in the configurator should move the same as you move it with your hand. If it does not, use the Board Alignment parameters in the Configuration tab to fix it. Do not use the "GYRO/ACCEL" parameter. Use the "Roll Degrees", "Pitch Degrees", and "Yaw Degrees" parameters. 3. Motors not wired correctly. TAKE OFF YOUR PROPS. Plug in a battery. Go to the Motors tab. Use the "Reorder Motors" wizard to ensure that the motor order is correct. 4. Motor spinning wrong direction. Do the same as step 3 but use the "Motor Direction" wizard to ensure that all motors are spinning the same direction as shown in the diagram.

@paulblase3955 10 ай бұрын

@@JoshuaBardwell Thanks. #2 was backwards! I had checked it, but it's hard to see under fluorescent light - it strobes. Had to touch it. I do have to tweak the filters, though. The props are big and slow and BetaFlight Explorer says that the motor frequency is around 85 Hz.

@paulblase3955 10 ай бұрын

@@JoshuaBardwell Do you know if a Mamba F50 ESC supports bi-directional DSHOT?

@paulblase3955 10 ай бұрын

@@JoshuaBardwell Or, the flight controller board is upside down. Sigh.

@anthonygrec0 2 жыл бұрын

moar gooder :D

@osmankeskin9140 2 жыл бұрын

Can I use any 3.7V 900mAh 18350 battery in my radiomaster zorro ? or do i have to use the one from radiomaster ?

@JoshuaBardwell 2 жыл бұрын

You can use any 18350 cell.

@osmankeskin9140 2 жыл бұрын

@@JoshuaBardwell thank you 👍

@clazy9222 2 жыл бұрын

I have a peoblem with my elrs. My lq dops after 500 meters down like to 70-50 ( at 250 mw, 200 packet rate. On an r9m module, the rssi dbm is good, new reciever and antenna on reciever and module) does anyone know what can it be?

@pressurefpv 2 жыл бұрын

Low LQ, high RSSI = Noisy RF environment

@JB-cq2wo 2 жыл бұрын

I have 6s 5inch drone. Should I turn down min frequency in dynamic notch filter or leave at 150 ?

@pressurefpv 2 жыл бұрын

Just choose a filter setting in the presets and leave it be mate. They good enough for most 5 inch builds. I always select 'Clean build with RPM' If you want to dial in the filters, you will need blackbox logs..

@JB-cq2wo 2 жыл бұрын

@@pressurefpv Thank you bro

@pressurefpv 2 жыл бұрын

@@JB-cq2wo Not a problem mate. The defaults pids and filters are great on 4.3 BF. The only thing i tinker with is the master multiplier. On a clean build you can crank it up a few notches for more pid authority..

@JB-cq2wo 2 жыл бұрын

@@pressurefpv That's what I was thinking. Sliders are high now after applying filter preset. very good lad. Thanks

@verona1pirate 2 жыл бұрын

just updated to 4.3 and i lost all my betaflight osd and even if armed stuck in low power mode =[ it all worked before damn , searchin everywhere.

@verona1pirate 2 жыл бұрын

after tons of reading i found that my port for msp communications between osd flipped it on and it fixed it.

@cinemoriahFPV 2 жыл бұрын

I'm very disappointed I flashed 4.3 I did a flight on stock PIDs and stock filtering without RPM filtering. I loaded the BBL into PID toolbox and it's was 90% on the money. I used to enjoy tuning now what?! 🤣

@00fluxone 2 жыл бұрын

tooo funny 100% now we just fly

@boominfree7408 2 жыл бұрын

I have a mob6 with a mockingbird tune(emuflight) If I was to put BF4.3 is there anything particular I have to do?

@TimeFadesMemoryLasts 2 жыл бұрын

No, just make sure you have an ESC firmware with bidirectional DShot so that you can use RPM filtering. The tuning presets will set your quad up in no time. Just make absolutely sure you are using an RC link preset that about fits your RC rate

@boominfree7408 2 жыл бұрын

@@TimeFadesMemoryLasts thx I have that as part of the mockingbird tune

@willpowerfpv3246 2 жыл бұрын

Why you'd want to do that... Isn't the whole selling feature of that quad the fact that it has the Mockingbird tune dialed-in already? Not hating, I love 4.3 and I've not had good experience with Emu, I'm just curious..

@boominfree7408 2 жыл бұрын

@@willpowerfpv3246 mockingbird ok seems a bit twitchy for me and I wanted to try out the crash recovery mode Joshua recently recommended also I have a video transmitter issue where when I swap battery’s between flights it’s like it gets stuck in pit mode (I loose vid quality)I have to go in to goggle menus and switch vtx power to fix it

@willpowerfpv3246 2 жыл бұрын

@@boominfree7408 oh hell yeah, that sounds like a royal pain in the dick. And yeah the crash recovery feature is awesome. Not sure if you have much experience with tuning, but I had really luck with UAVtech's whoop preset on my custom whoop on a mob6 frame and 25k HM motors...Bluejay 48k on the esc's.. lots of power, really smooth, and my motors even sound better. Good luck, bruv 🤘

@ghettogardens1 2 жыл бұрын

Why don't my filter sliders work? How do I turn them on?

@JoshuaBardwell 2 жыл бұрын

There is a pulldown menu at the top of the section that enables and disables the sliders.

@ghettogardens1 2 жыл бұрын

@@JoshuaBardwell Thanks. But that wasn't the problem, I down loaded the latest version of Betaflight and for some reason the filter slider section wouldn't work at all. I uninstalled everything and reinstalled the new version again and it is now working fine. Thanks again!

@danielnoname8352 Жыл бұрын

hi Mate, to be honest I am disapointed because in fact you have explained nothing in this video, To have such video valuable you should explain how each filter works with diagrams and what you did is sth like - this is the filter for low/high frequency but I do not how to use it, leave it on default settings. This is not the Bardwell's style we are used to ;)

@JoshuaBardwell Жыл бұрын

I made that video. This is not that video. This isn't a how to pid tune video. It's a "here are the settings here is what they do" video. The goal of this video is to briefly touch on every setting, not to go in depth about how to configure them. Here is my pid tuning video kzfaq.info/get/bejne/qZaUgbWWlb67emw.html If you want more charts and graphs, here's a great one kzfaq.info/get/bejne/islirJSlqbbHqoU.html

@danielnoname8352 Жыл бұрын

@@JoshuaBardwell ok, I just was expecting the video like you do for radios, you describe funcion and present how it works. Anyway, I appreciate what you do for FPV community, thanks a lot 👍