What is the Betaflight RPM Filter?

00:00 - Start
00:18 - What the RPM Filter Enables
00:28 - How the RPM Filter Works
02:09 - Why use the RPM Filter?
03:07 - Why is there a DSHOT WARNING?
03:47 - RPM vs. No-RPM Filter Comparison
Want to support me?
---------------------------------
Sign up to be a Patreon: / uavtech
Donate to my Paypal: [e-mail]
Use this Amazon Affiliate Link: amzn.to/36okaf7 to purchase ANY products [hobby gear, household items, etc.]. As an Amazon Associate, I earn from qualifying purchases.
Use this Race Day Quads link to make a purchase: www.racedayquads.com/?aff=51
Free Resources:
------------------------------------
Presets and Tuning Training Content: theuavtech.com
Facebook: / uavtech1
Betaflight BlackBox Log Review Group: / 291745494678694

[@MCsCreations]

Excellent tip, Mark! Thanks!!! 😊 Stay safe there with your family! 🖖😊

[@dkieng]

Thank you for sharing. I learn something new today!!!!

[@samavella8831]

Thanks Mark! Great video and great (layman’s) explanation!

[@KwadLife]

Really noce explanaition! So now we need a video about the other checkpoint of low and high frequency 😊😊

[@uavtech]

just use what is in the presets. they restrict the range the notchs can work within.

[@phi-fpv]

thanks Mark!

[@Huck_FPV]

Thanks!

[@manski209]

Hi Mark, great learning videos, thanks for sharing. Out of all your presets in Betaflight, which one is good for a 5" quads and for 3" cinewhoops for just long range and smooth flying. I don't race, i just lke cruising and mellow flying. I'm running BF 4.3.2.

[@cinemoriahFPV]

I prefer to use dynamic notch only unless the build is a resonant headache then it's RPM to the rescue

[@wiratheos4638]

Helo how about esc Firmware Am32, like a NeutronRC, this filter support?

[@tweekFPV]

👍🏻👍🏻

[@DronemanfromNepal]

I hope you would do more video about 3.5 inch cinewhoop . Thank you

[@DronemanfromNepal]

My axis cinewhoop started flying bad after I changes from RYP to RP . Any idea why is that ?

[@matuka3755]

Modern BLHeli_S supports bi-drectional DSHOT? Cool! Thank you for the heads up, Mark :-)

[@uavtech]

bi-directional DSHOT.

[@pirateradioFPV]

Dunno, I enable stuff just to get the dynamic idle which I find more useful than the RPM filtering 🤷‍♂😄

[@aviatoFPV]

How does RPM filter impact the O3 stabilization? They recommend not using 24khz but 48khz and above.

[@uavtech]

it doesn't. It sounds like the camera sensor not being fastened to the inside of the housing well for the 03 is the main issue.

[@GinTonicFPV]

Hi Mark, what happens if I switch on Bi-directional DSHOT in a quad that doesn't have the firmware to support it?

[@uavtech]

The motors could ramp to 100% on arming. THAT SAID, BF now has a safety catch. If you turn on bi-directional, and the signal back from the ESCs is not detected, it will not arm.

[@reedfpv]

nowadays, i usually disable rpm filter. dynamic notch is working so good. i also noticed sometimes motors a bit warmer with rpm filter on.

[@662SSIPPI]

would one of your presets be good for my cinebot30.. that thing has mad shakes when off throttle coasting down to a lower altitude? great content i want to learn how to tune my quads better

[@uavtech]

Cinelog

[@662SSIPPI]

@@uavtech i have the cinebot30'

[@uavtech]

Correct. Cinelog preset. Make sure props-in config.

[@662SSIPPI]

@@uavtech ok thanks.i will have to change motor direction because they come props out stock

[@jessefpv4949]

​@@uavtech So I've got a 3.5 in aura with 2700 KV motor 6s and I'm running 3052 props with a decent pitch. It's a clean build. It's a new build. Everything on it is new I crashed. One of the motors was bad so I changed it to a new one. Went for a spin and the vibrations was there and I don't know exactly why it's it's causing vibrations. I've got bi-directional d shot on with blue. Jay config any recommendations that could fixed the oscillations or the vibrations in the OSD? With filters thank you 🙌

[@american7169]

I put this on a 3 inch build and had instant fly away issues. Not sure what's going on.

[@uavtech]

pick low build filter and/or move the Master Multiplier down by 0.5 points.

[@AirKhanFPV]

Betaflight RPM and Dynamic notch Filters are insane as hell! I mean i turned the LP1 off and my D-Term Slider is at "2" my props are beaten up BUT the damn thing flies smooth as hell, oh i have forgot to say thats the filter tune on my 65mm Whoop which is made from PLASTIC!!!

[@cinemoriahFPV]

I turn off lpf1 and lpf2 filtering on whoops they rarely have low spectrum noise because of the size and high revving motors.

[@AirKhanFPV]

@@cinemoriahFPV im running a mpu6000 on a f4 its downsampling from 8k to 4k is it still good to turn off the lpf2?

[@bertbeinaaf8314]

Propably I’m getting old. But i find the background music very distracting. And since English is not my native language it makes what you are saying much more difficult to understand. My five cents…

[@JDDupuy]

I agree the levels are too close together and it is just not needed. Imagine giving a speech on a technical subject and playing music in the background at the same time. Folks will not pay attention.