BLHeli_S: (Mostly) Everything You Need To Know
ฝัง
- เผยแพร่เมื่อ 21 ก.ย. 2016
- What is BLHeli_S? What's the difference between BLHeli_S and BLHeli? Is BLHeli 16.x the same as BLHeli? Can you flash BLHeli_S to your BLHeli ESCs? Does BLHeli support multishot or oneshot42? Why can't you adjust damped light on your BLHeli ESCs? Is BLHeli_S really better than BLHeli? Have you ever said a word so many times that it lost all meaning? BLHeli BLHeli BLHeli BLHeli BLHeli?
www.rcgroups.com/forums/showth...
I've found a significant improvement with S. Mostly in low speed motor control, it's so precise and smooth!
Rest in peace brother. You had amazing content.
Hey Joshua, just wanted to tell you that you are the best :) I was so busy the last few months that I couldn't keep up with the new developments in rc copter tech but you are making it a breeze for me to catch up now! Thank you so much for these videos!
+PatrickFPV glad to be some help.
Is it possible to flash an older version of BlHeli on a BlHeli_S ESC as I really need some features of the old BlHeliSuite?
If not, is there and advanced mode on the BlHeli_S Suite that can invert Input Polarity?
Many Thanks
Jonno
BLHeli_S ESCs cannot run older BLHeli firmware. It's not possible. If you don't see input polarity in BLHeli configurator, I don't think it's possible. BLHeli_S removed a few options to make life simpler for users. Maybe input polarity was one of them.
Ohh Mann!! your channel is full of info abt quadcopters really appreciate it these videos has helped me to know so much about everything motors, softwares required and everything is soo.. clear short and easily understandable to a noobie like me :)
Perfect timing, I just got new 30a Racerstars and im excited to try them!
Hey Joshua, is it ok after you calibrated in betaflight and go over to check the settings in BLHeli suite I have 4 esc load, 2 not synced with master. The values of 3 and 4 have different Max and min throttle. Is this going to cause any issues or is this just how it is? Thank you
if you look at channel output on the taranis while you move the throttle you can see the indexing is not firm enough to limit you to the resolution of the clicks, although I agree there is more resolution than we can deliberately use.
I think we actually are hitting the erpm limit on 5" props. I can't remember the technical details, but I've heard QMF say that BB1 can be limiting on some setups depending on motor type and motor update speed. Its something like erpm/poles. If running 2600kv 5x4x3 and 16k update you will have upper rpm issues.
I hit the limit on an xm20a trying to run 16k. When I go max throttle the topend speed drops off fast.
Hi Joshua what sort of loop time can I run on beta flight I can I run them at 8k/8k
Once again, Bardwell pulls through. Thanks again brotha.
silly concern, but I noticed how quiet the boot sound is on KISS 24A ESC. Any way to get rid of the obnoxious startup tone on my LittleBee20A (Bl_Heli_S), yet maintain a high volume on the "find my copter" feature?
+Pablo Contreras I don't think the startup tines are adjustable.
Hello all, Can I use this blhelis esc for 920kv motor? Did it plug n play for 2212 920kv motor with dji naza or pixhawk fc ?
I am by no means a pro flyer but I definitely noticed a difference between my 390's and _S. Not massively but have found more of a connection between my TX and the quad. I did need to desync though as I was getting fast oscillations on punch outs
Joshua. I'm got pleasantly suprize and I think this is something you'd like to know. I went ahead and got the runcam swift and to my suprize, unlike my last one, this runcam swift had the piece of foam behind the plate on the camera and the whole front of the board is epoxied so the crystal and light sensor don't break off. these are the things that make me happy.
You are a God sent Brother, for this and not limited to just this once. You always come through, Every F#$in time, I am lost wandering in darkness, frustrated, with 4 windows, 37 tabs of agony, you show up out of nowhere, like a buddha with a flashlight and a much needed butt kick to suck it up and get going with the next puzzle.
On towards Enlightenment Brother. Lots of Love.
Cool :) That was clear & insighfull :) Thanks for that! Helped me out :)
g'day Joshua, thanks for the video. So not just blheli suite but in betaflight config, we also treat them the same, like min throttle etc. And do blheli_s benefit from top end calibration? cheers
BLHeli and BLHEli_S both have improvements to the throttle calibration routine, but I still calibrate manually just because I like to. That being said, when I am in a hurry, I have used Motors Tab calibration and not had any problems.
I used to use blheli multi firmware for my 250 gram single rotor direct drive copter. Now the demped light is trying to actively brake my main rotor and the motors get really hot, and I dont have the option to turn it off. Also blheli_s removes PIDs governor from the esc. It is useless for single rotor or big prop variable pitch projects. Wish I had watched this episode of yours before I bought the Es .
Commonly Bleheli_S is disussed for Racer. I have another aim: I want to drive 22-Pole Pancakes with stable MINTHROTTLE as low as possible - just because I like it very much starting up 17" Props really slow (saw this several YEARS ago with Mikrokopter really smooth).
Do you think Blheli_S has advantages driving high-pole-low-KV(390)@low Speed?
+Götz Leimann yes absolutely.
Biggest difference I noticed with BL -heliS, I can run my min throttle much lower without risking Dsynch issues. This allows better inverted hang time with slower turning props. Also I no longer have to have 2 PID profiles for when Ai run with or eithout a GoPro...I love it and to me, totally worth the upgrade to S!
hi, can I flash an f390 ESC with multishot and continue using oneshot125,42 or pwm protocol on betaflight
There is no OS42 build of regular BLHeli as far as I know. You can have BLHeli with PWM/OS125, or you can flash the MS firmware and get BLHeli with MS. Not sure if the MS firmware also supports PWM.
Wow, I guess I didn't actually finish editing this one. Sorry about the sniffs and gaps towards the end of the video. Not sure how I flaked that so bad. I actually think I might have uploaded the raw recording by accident, but I don't hear any re-takes. Anyway, enjoy!
Joshua do you have a cold? Get Well Soon.
I am usually a little bit snuffly, but right now I have mild allergies.
try local honey it might help , unless it's pet allergies
I would try some honey with some local moonshine whisky.. And stand with one foot in cold water bucket and the other foot
In a warm water bucket.
lol, that should do it :)
Hey Josh, how would i go about updating BLHeli_S on a 4in1 ESC, like the Aikon 30a? Would i be able to pass through my FC (Dodo)?
No difference at all with a 4-in-1 vs separate ESCs. The FC can't tell the difference. I don't know if the Dodo specifically does or doesn't support passthrough but I suspect it does.
Thanks brotha. Have a good night.
What is the"brake on stop" option?
great video josh. just finished a qav-r LB30a blh_s rs2205 build. flies great. but i did have an issue with BF2.8.1 and blh 16.1 when i changed the PID settings its caused the quad to be unflyable. update to 16.3 and bf2.9 solved it! do you have a video explaining the use of each of the blheli adjustment options?
th-cam.com/video/0Bi1XcdpnQI/w-d-xo.html
thanks buddy! ill give it a watch now
Joshua how do you decrypt blheli_s firmware code name for example a-h-40? why can't they have a proper name?
+Jack Truong the name indicates the FET layout and dead time. Many ESC's share layout so instead of using the ESC name, blheli switched to a name that is descriptive of the layout.
You had me howling with 'big fat stupid fingers', totally caught me by surprise listening while editing pics.
Thanks the info and chuckle :)
I'd also add that I can clearly tell the difference between blheli and blheli S and I can't tune well at all. I'm totally sold on Blheli S, even on a cheap setup they make it so much smoother and feel like twice the resolution. I just don't feel this feeling is down to how well you can tune a quad, more on throttle stick finesse which is pilot skill.
Get some lemsip down ya, quell those sniffles :)
So i have littlebee 30A blheli s escs, can i just flash latest 16.5.. then select multishot in betaflight? i don't need to download a special multishot file?
Yes. BLHeli_S supports multishot out of the box.
Joshua Bardwell Thankyou
where i download this blheli S?
i'm trying to troubleshoot a dys xm 20a esc, it intermittently doesnt beep or run, have i damaged something? should i just buy another one and assume this one is haunted? i have checked the power solder work, all good, signal wires are buried in hot glue, would a bad signal wire stop it beeping? does it beep on its own without any signal wires?,
you might not be able to reply to 'a' comment
Hi Joshua,
When you reverse motor direction on blheli suite, is it 100% reliable or can there be some sync problems at high throttle ?
Thanks,
Hamza
+Hamza Bendahou there are a couple of DYS ESC's with a bug where the motor stops if you use reversing. Other than that no issues I know of.
Joshua Bardwell Thanks for you Quick answers !
will a blheli s esc work with 3 other blheli. all are dshot-600
Yes.
I thought I was getting a good grasp on all of this but now I'm confused again.
I realize this video is over 6 months old, but how does D Shot fit into this?
I have Speedix 30A Blheli_s esc's. Can they run DShot or am I talking apples and oranges?
+D Rock 75 dshot is a motor protocol. Blheli_s ESC's support dshot.
Joshua Bardwell , Gotcha! I was slowly putting that together in my mind. Thanks Prof. Bardwell!
Thanks for the video Joshua. You cleared up some thoughts I had around blheli on littlebee pros. I think I need to flash them with multi shot now
Definitely. Even at only 2k motor update rate, I believe there is an advantage to Multishot.
I'll have watch your "flashing multishot" video again.
I have blheli-s littlebee 30-S and i want to apply a multishot but i dont know how , any sugestions ? please ..
BLHeli_s supports multishot natively. You don't need to do anything special.
Thank you my friend .
Are any ESC able to damped light, considering that they have FETS? Or do some ESCs have an alternative to FETs to handle damped light?
In theory any ESC can do regenerative braking, it have nothing to do with FETs (MOSFETs) it is due control scheme how pass element (FETs) are driven (and in case of FET from FET driver).
Joshua stated that FETs can't switch fast enough, or did I miss hear him?
All ESCs have FETs, the question is how fast these FETs can switch.
Nicholas Heidl
Speed of MOSFET switching is limited mostly by MOSFET driver.
In theory you can make regenerative braking on even slowest switching MOSFET, but you then you will limit PWM frequency, which will in end have pure resolution ...
There are some ESC that drive MOSFET directly from MCU, MCU have limited sink/source current on output pins (more 50 times less then worst dedicated MOSFET drivers, and 500-1000 times less then modern one), which limit speed of switching (turn on/off time is inversely proportional to driving current) and for PWM speed that are used for ESC there is "impossible" to do regenerative braking.
I thought so too, this is why I question Joshua's statement
Do you know what happened to closed loop mode? I just purchased a new ESC from ReadytoFly quads that looks like a strict improvement but I need closed loop mode to implement a fancy controller on the FC.
+Brandon Robinson I guess it was removed in blhel_s?
The hardware should still support it though right? It just might not be exposed in the UI or implemented in the new firmware.
Do you know where I could look to find out?
Can I flash Bl-heli on a BL-heli S esc?
Thanks a bunch for responding :D
It's been pretty tough to find real information and this channel is great.
Especially because the RPM power protect setting still exists. That means the ESC is still aware of the RPM on the motor. So the loop could be closed.
If you were to dig into BLHeli_S's assembly code, you could potentially write your own closed-loop mode. That would be beyond the skills of even most coders.
I'm definitely not qualified to do that. Just wondering about backwards compatibility with BLHeli. If I can change from BLHeli_S back to BLHeli I should have closed loop back, I'll just lose out on some of the newer code changes.
Joshua Bardwell Hiya josh I got the 4IN1 30A blHeli racestar esc and racestar BR2205 2600KV motors would these be ok to put on a QAV-R 180 FRAME josh
Sure. Why not?
+Joshua Bardwell hiya thanks josh I stared this month's ago iv had it half built up but put it aside till I got circuit board cleaning spray to remove residue from on the tabs there's a golden yellow colour on 2 tabs and it's not taking the solder josh
but I was thinking maybe these esc & motor mite be to much power for this small frame lol but this is only my 2nd build josh but yes thanks very much that's made me feel a lot better now buddy what size of props and batteries would be suitable for this setup josh I think iv got two packs of 40-40 try props hopefully but I'll have to get batteries but I'm not sure if this will be a 3s or 4s setup I don't have a clue josh lol and thanks again for your help and advice josh
joshua hello, I have a problem with the racing has 01 engine that sometimes it gets hot and not consigui program the esc with blheli will be I have to program the esc by BLheli.
If only one motor gets hot, then check that the motor screw is not touching the windings.
joshua already checked the bolt and ta not touching the bearing, my engine and EMAX RS 2205 the esc are Littlebee 20A 2-4s battery 4s eachine.
Did you check the bolts with a multimeter, or visually? Only a multimeter can really tell. Check for continuity between the ESC output pads and the motor screws. Check every pad and every screw together.
Other things that can cause one motor to get hot: bad bearing, out of balance bell or shaft.
my dear friend Joshua Bardwell, my problem was the engine screw even I switched the screw motor and it worked thanks for the tip owe you one.
No problem. Glad you got it solved!
Too bad we don't have the imperial theme with BLHeli_S, i will miss that when i will start using them :'(
I just built a mini tri-copter from rcexplorers.se and it came with the Emax 2205 KV2300 motors and Aikon SEFM 30A ESC's. I seem to be having sink issues unless the fact that i'm running the motors without any props is the problem. I kind of doubt it but you tell me. I have the latest version of BL Heli Suite and when trying to use Silabls Cleanflight passthrough it works great up to the point where I click the "Check" button. And then the ESC goes kind of crazy. sounds like they are starting the calibration process and the rear tail motors spins in a real jerky fashion. The ESC never stops and goes on and on with a series of double beeps. then BL Heli times out with an error 31 or an error 121. Like I said...it works fine when I first plug it in. It sees the three ESC's and when I plug in the battery i get the three beeps. But when I click the "Check" button the blue circle just spins and the ESC beeps are not anything like yoru video shows. I have the lastest version of Cleanflight that you can get. I use the one that is an app on Google Chrome. I'm also using a Spektrum DX18 with an AR7700 using SRXL / Spektrum 2048. I'd appreciate any advise you could give.
If you hit "check" and the ESC does anything at all, it's not in programming mode. It's not detecting the programming signal from the board, and it's mis-interpreting it as throttle signal or something. I don't know what the fix is though.
hey Josh I know this doesn't have anything to do with this but my receiver went out and my satellite lost bind I have tried and tried to do it in cleanflight I've tried the number 5 and 9 in the CLI and I cannot get that Spektrum satellite to Blink is there a trick I am using a DX8 and an orange RX satellite
+Ultimatevapor918 I don't know anything about Spektrum, sorry.
They removed the bind feature on the rev6 :( WHYYYYYY lol. Yea Im about to make the switch soon as I sell my dx8.
NOOOO!! dx8 is life!! Anyway, get a standard rx and bind the satellite with it, super simple.(you dont even have to desolder if you stab needles through the heatshrink)
whats the difference between gyro notch and d term notch
gyro notch is applied to the gyro data directly after the gyro lpf and thus all terms get the effect with dterm notch the filter is only applied to the data used for the dterm.
when i try BLHel 1 wire arduino boot loader it works fine i try with the BLHl_S esc it wont connect. any idea ?
Change the interface type from Arduino 1wire to Cleanflight Passthrough.
ok thanks, i was using the afro/turnigy usb linker with my UNO for non s . i will give this a try after work. thanks!
that says connection to flight controller failed. i plug in my dys blheli and it works fine on USB/com but not on clean flight either. connected to pin 0 on the uno
the micro possessor chip looks to be different on the s version EFM8BB2x looking at the pin out in-relation with the pogo pads. the four pads consist of I/o, Ground,vDD,rst the memory type is flash. this looks to be what most new esc Blhel s version are using now. maybe no single wire boot loader.
Joshua Bardwell www.rcgroups.com/forums/showthread.php?3139559-programming-ttsrc-20a-blheli-s
this is how i got it to work dont even need a lipo just the uno.
Could you elaborate on the different firmware choices for blheli_s? What do the numbers and letters designate?Are they interchangeable with different blheli_s esc's?
As always keep up the good work!
The different firmware choices like what? Give me an example?
www.dys.hk/Uf-pro/201663017177637.jpg
if you look at the link I posted, you should see what I'm talking about, otherwise just click flash firmware and look at the files available, most of them start with a letter then a dash then another letter then a dash and then a number.
Those are the different models of ESC, which require different firmware builds because they have different types of FET and different physical layout.
i have the racestar 4in1 20amp. i flashed it with 16.3 and did one flight. changed the stand off to shorter one and now i lost one esc. blheli isnt seeing it.
fast fwd 3 days later trying to get the one esc to connect blheli osnt seeing any esc. how do i reflash these. everyrime i try it ask to cycle esc power.. no matter how many times i try nothing happens.
Does the ESC actually work? Like does it spin the motors?
yes just 3. if blheli sees it i can flash and what not. takes like 30 tries to have blheli even see it
I'm sorry I still don't understand the answer. Does the ESC work? When you said "just 3" I'm not sure what you meant. Only 3 ESCs spin, or only ESC 3 spins, or what?
yes esc still work and it can spin the motors, but one 3 out of 4 will work.
I'm sorry, but I'm still not clear.
3 out of 4 ESCs work to spin the motors?
4 out of 4 ESCss spin the motors, but only 3 out of 4 can be seen in BLHeliSuite?
Unless it's maintained by the same developers, you should be very, very careful with claims that a fork obsoletes the upstream. Developers don't take too kindly on this kind of thing.
It seems like it's just a hardware specific port of BLHeli to 8-bit SiLabs controllers. The reason such port would naturally have a reduced number of options is because of conservation of effort - some options no longer make sense on the new target platform. For example high-resolution hardware PWM deprecates Dither functionality. Performance conserving trade-offs may have also been obsoleted because they have little impact on the SiLabs platform while they may have had significant impact on AVR.
Everything bound to exotic hardware doesn't have the best long term odds though, in my opinion. I think wind is blowing towards ARM Cortex M3 and M4 microcontrollers - they are cheap, power-frugal, and there are multiple competing sources for them. I think STM32 embedded peripherals are particularly attractive, but no big deal.
Not watched this yet but I hope the calibration process is the same as 'old' blheli.
Identical.
Okay Joshua, you convinced me, Where is download the BLHelice_S? Send me Link. I didn´t find in Github
Blheli32 is the latest now.
@@JoshuaBardwell But miss the "S"
@@JoshuaBardwell Where can i download?
hi Josh, the S stands for "smooth". Imho, the significant change is the one you mentioned, hardware PWM.
I agree hardware PWM is huge. The additional memory is also nice. It's why we can have OS125, OS42, and MS in the same ESC now.
Best Quad engineer.
and i run 16.6 version of firmware ..
Ну все как я и предполагал, и заметил что легче настроить. И нельзя отключать damped light.
you said blheli instead of blheli_s way too many times...if i was a newbie i would have been confused as hell
D-Shot 600 here.
I know this vid is old but "no significant difference"? Wow... BLHeli_S is smooth as silk out of the box and the motor sound changes like from night to day.
another video with no audio! i know it may just be me, but this is so strange
I really have no idea... There is literally no difference in my production process, and I've never had it happen myself.
I don't want to risk getting another community guidelines strike by directing you to do anything in violation of TH-cam's TOS, so I don't suggest that you find any other way of watching the video, especially not as a strictly diagnostic tool, to see if the raw file has audio in it.
If i play back on my iPad it is fine. Ive tried an incognito window and the same thing happens. One reason I made the comment is because i am wondering if anyone else has this issue
Maybe you have some browser extension that is breaking it. Extensions are disabled in Incognito mode.
Try firefox you might have an old version of chrome as they have stopped supporting some operating systems now.
Misleading title, this did not answer any of my questions about BL Heil S
+Pete Busch this is a pretty old video and a lot has happened since then. So what did you want to know that wasn't in the video? I can't help you if you don't ask.
Sorry Josh just frustrated getting BL Heli to read my esc. All the video's that explain BL heli and Beta flight are greatly appreciated but when things go wrong, and it seems common, then were SOL LOL. I tried updating the driver on my esc using zadig as explained on another you tube channel, not yours, and it failed and won't let me do anything at this point. The esc is this, pirofliprc.com/HGLRC-XJB-F428-TX20-Omnibus-F4-Flight-Controller-28A-2-4S-BlheliS-ESC-25100250mW-Switchable-VTX_p_4210.html
"S' means sport. It always means sport in everything in life.
And Sport is obviously better.
Actually the _S is a Silicon Labs trademark symbol. So I'm assuming the Atmel's esc's won't be getting BLHeli-S...
Thanks!
When I learn something I need to know your the guy that educates me. Thanks!
I flipped out on castle they are sending me a free upgrade cable and it will run 125 shot :) yay
Stupid big fat fingers. Lol, I love it.
evolution not revolution....
Please stop calling "damped light" active braking it is regenerative braking, active braking is totally different technology.
Goat
Simple NO.
Active braking is not category of braking, it is just one of methods of braking, same as regenerative braking or dynamic braking (...) in terminology of BLDC motor drive (and that terminology are in use long before they was used in RC applications and it is inherited from PMSM).
Active braking is a method of braking obtained by reversing the applied supply voltage so that the input voltage assists the back emf in forcing armature current in reverse direction (sometimes also called "Plugging" and you can look at it simple as slamming motor in revers).
On other hand regenerative braking is method of braking where power generated during retardation is fed back towards the source i.e., the motor works as a generator developing a negative torque which opposes the motion and the generated energy is supplied to the source (contrary to dynamic braking where power is wasted in some resistance on heat).
Active braking is most efficient in terms of braking, but it use energy from source for braking, on other hand dynamic do not use energy from source or return energy to source during braking and regenerative braking return energy to source during braking, but dynamic and regenerative braking are less efficient in terms of braking.
edit: Using your division (if something like that would be valid for BLDC) regenerative braking will be in passive braking category.