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Lost..just lost
#1
First post here, although I have actually completed 2 quad builds, admittedly only after endless hours of frustration and searching thru forums and YouTube, I am at the end of a new build and stuck, bad.
I am sure I have read the answer to my problem several times over, but all this being very new to me, I seem to miss certain critical details.
Anyhow, As a total noob, having only a couple very simple builds worth of experience, I have made a serious error in selecting esc's for my 3rd project, a 3", iflight frame, with 1407-3500kv motors and these esc's
iPeaka Mini25A 32bit BLHeli_32 ESC OPTO (2-4s) DSHOT1200 Compatible

I have made every effort to use as high quality components as I could reasonably afford when building and these esc's and motors were purchased as a package.
My thinking being, I've read much praise of the BlHelis-32's and surely being sold as a package, the motors would be as near optimal pairing as anything I could hope to guess at buying individually.
Having completed the build, using an HGLTECH AIO F3 V4 FC, and a new Runcam Eagle 4:3, I find myself lost trying to set up thru Betaflight.
I understood going in that Dshot 1200 is not currently supported via the latest stable BF version, but had hoped I could run Dshot 600 or ?, until the stable version of BF DS 1200 came out, as I am not nearly a skilled enough pilot to appreciate the difference nor confident enough in flashing software unnecessarily.
I have used Blheli BF passthrough once to flash-the Littlebee esc's on a previous build, but had hoped to just sync these thru BF & use whichever version BlH they were shipped with.
Now, considering the investment sunk into this quad, I fear loosing all the smoke on startup.
I have built a light bulb smokestopper and verified that at least I havnt reversed any polarity, I think.
I am sorry for this rediculously long message, but, I have found no local source of information and after hours of YouTube and reading posts until my eyes have blurred.
There seems to be multiple ways this could be set up, but I have no idea what protocol I should use, or since the esc's packaging ONLY references Dshot 1200, do i have to import the pre-release version of Betaflight that isnt yet stable, but supports DS 1200, (I did run across a video detailing this procedure), can i just select Dshot 600, multishot, oneshot?
I have no idea what the results of choosing the wrong one could be.
I would be most grateful for any words or guidance you may be willing to give me toward finishing this last part of set up, as i am curgently very much regretting this build.
Thank you.
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#2
In theory, you should be able to run whichever protocol you want. If you can run D1200, you should be able to run D600, D300 or D150 if you want digital. Otherwise, you can run analog multishot or oneshot. D1200 would be the best. In real life, it would be hard pressed for you to be to tell the difference in performance between any of these.
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#3
(10-Jul-2017, 12:18 AM)voodoo614 Wrote: In theory, you should be able to run whichever protocol you want. If you can run D1200, you should be able to run D600, D300 or D150 if you want digital. Otherwise, you can run analog multishot or oneshot. D1200 would be the best. In real life, it would be hard pressed for you to be to tell the difference in performance between any of these.

That is what I had assumed, or at least hoped would be the case, however, in all my searching to understand my protocol options I read posts advising others to change to older versions of Blheli or BF to have the option to run multishot on their esc's.
I pray the day comes when all of this is as elementary and obvious to me as it seems to be for most , but I confess at the moment, I feel as tho I'm missing a large piece of the puzzle.
I have read most of the Wiki in BF, but it just doesn't seem to click for me.
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#4
You should be able to run any older ESC protocols on the latest BLHeli_32 firmware, you can select the protocol right in the Betaflight configurator and ESC's will detect what protocol is being used automatically.

Does that answer your question? sorry if i missed other questions in the long post Smile
Don't be a LOS'er, be an FPV'er :)  My Gear - Facebook - Instagram - Twitter
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#5
Thank you Oscar.
I think all is well.
I left oneshot as the protocol for a test drive, since I havnt been able to successfully flash BF 3.2 to the fc, each try left it bricked, and evidently, these 32bit escs require BF 3.2 for BlHeli Passthrough to work on them, so I flashed 3.1.7 & resoldered motor wires #1 & #4, for correct rotation, and synced the motors in BF.

With my only fpv race quad experience being a Wizzard, and two other 5" quads which I built, I don't have extensive knowledge and have never raced anyone, but to me this thing is mind blowingly insane quick.
As with the others I built, it isnt exacly a copy of anything particular, just a neat looking frame & a bunch of parts ordered, hoping for a good result, primarily thinking that a much smaller quad would be easier to manuver thru the dense trees where I live.
Boy was I wrong, I suppose since the copter seems to weigh the same & maybe less than the 1300 mah 4s batt it sits on, it hovers just about a 1/4 throttle and a blip sends it out of view in an instant.
The two packs I've flown Los so far has me excited for its potential.
Although the quad is extemely stable and we'll behaved, I think the sound of the motors could be smoother, not sure how else to describe it, but, I'm going to make another effort to flash 3.2 that will allow me to run Dshot 1200 since that is the selling point of the high priced escs, and meantime, play around with the Blade Torrent I just got to serve the actual purpose this quad was intended, less intense manuvering thru the forrest.
Cheers
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#6
by changing ESC protocol, looptime or anything like that, you do need to adjust your PID though to get the best result Smile
Not just adjust, maybe a "PID re-tune" is a better term Smile might help with "motor running smoother"
Don't be a LOS'er, be an FPV'er :)  My Gear - Facebook - Instagram - Twitter
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#7
(13-Jul-2017, 06:25 PM)Donfli2good Wrote: With my only fpv race quad experience  being a Wizzard, and two other 5" quads which I built, I don't have extensive knowledge and have never raced anyone, but to me this thing is mind blowingly insane quick.
 As with the others I built, it isnt exacly a copy of anything particular, just a neat looking frame & a bunch of parts ordered, hoping for a good result, primarily thinking that a much smaller quad would be easier to manuver thru the dense trees where I live.
Boy was I wrong, I suppose since the copter seems to weigh the same & maybe less than the 1300 mah 4s batt it sits on, it hovers just about a 1/4 throttle and a blip sends it out of view in an instant.
The two packs I've flown Los so far has me excited for its potential.
 Although the quad is extemely stable and we'll behaved, I think the sound of the motors could be smoother, not sure how else to describe it, but, I'm going to make another effort to flash 3.2 that will allow me to run Dshot 1200 since that is the selling point of the high priced escs, and meantime, play around with the Blade Torrent I just got to serve the actual purpose this quad was intended, less intense manuvering thru the forrest.
Cheers

If your ESCs work fine now, you can probably wait until 3.2 gets released or keep an eye out for a 3.1.7 release that supports BLHeli_32. I'm surprised nobody has made a version that supports this yet.

It's highly unlikely that changing to DShot 1200 will change performance in any way you are likely to notice unless you are an elite pilot.

Also, you have to remember that BetaFlight 3.2 is not currently in any officially released state. If you flash a hex based on a 'passing build' of the latest 3.2 source code there is probably a 100% guarantee that it will set your ESCs on fire, drop out of the sky, fly away or do otherwise terrible things to you and others. It's also not documented in any way.

Unreleased builds are for testers, experts and adventurers. You honestly don't need these new features right now and it's certainly no way to attempt to fix a problem!

Nice to hear how your tiny little 3" quad is scaring you! Smile With 1407 3500kv motors (on 4S?), jaw dropping speed is something you should expect. That's an extremely powerful quad which probably has a power to weight ratio of around 8:1!

My fastest 3" build has 1306 4000kv motors and runs with RotorX 3040 triblades on 850mA/h 4S batteries. It needs wide open spaces and gives three minutes of mind-bendingly fast flight!

[Image: IMG_20170306_234425_zpssu0n7j7h.jpg]

(Build thread: http://intofpv.com/t-deformation-insects-130-build-log)

You need something much calmer if you want to go flying around the trees!
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#8
From a few thread, to flash 3.2 successfully, you might need the development betaflight configurator. I have not been able to find this or can verify this to be true. Can anyone weigh in on this?
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#9
(14-Jul-2017, 02:18 AM)voodoo614 Wrote: From a few thread, to flash 3.2 successfully, you might need the development betaflight configurator. I have not been able to find this or can verify this to be true. Can anyone weigh in on this?

You probably do. You certainly need the development version of the configurator to configure the firmware.
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#10
Although not the same FC you're using I too was having issues getting 3.2 flashed onto my current build as well (Matek F405) it took quite a few attempts. I seemed to have better luck with it actually flashing loading Betaflight from the extensions screen through chrome vs my desktop shortcut. Be it a fluke or not it does flash with more success that way.
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