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Mikado V-BAR Control Mikado V-Stabi/V-BAR Control Flybarless System Software and Hardware Support


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Old 07-05-2021, 06:38 PM   #1 (permalink)
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Default VBCT/Neo unconnect midflight and on bench

This has happened 3 times on the bench on my Logo 700 and once midnight today on my Raw. Vbar initializes fine then out of nowhere my vbct says unconnected and shows the log screen (just like someone unplugged the heli) My neo then starts blinking RED/GREEN.

I was hoping it was just a bench thing on my L700, but today it did in midflight with my Raw. Model cemetery shut down and fell out of the sky. My radio showed the model was off, but when I walked up to it, the NEO was flashing RED/GREEN.

I use a Kosmik in the Logo and a Kolbiri 140HV in the Raw - both on 12s.

Should I send the vbct or neo into mikado?
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Old 07-05-2021, 10:05 PM   #2 (permalink)
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As I commented in your other post please post the relevant logs.

TX too close to the Neo on the bench can result in telemetry disconnecting as the telemetry transmission is not limited in power by the NEAR function and this overwhelms the VBC, control side will still work perfectly.
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Old 07-05-2021, 10:34 PM   #3 (permalink)
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And red/green flashing means.....

Could your SBEC be insufficient?
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Old 07-06-2021, 12:01 PM   #4 (permalink)
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There was a bad batch of boards in neos a while back. If you pressed on the case it would power on/off.
On another note you state it powered off 3 TIMES on the bench!? Yet you flew it??
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Old 07-06-2021, 02:40 PM   #5 (permalink)
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Quote:
Originally Posted by MikeUSA View Post
And red/green flashing means.....

Could your SBEC be insufficient?
Yes that is possible. It may have been SBEC. I have talked to 3 other pilots who said they had issues with the BEC on the newer Kolbiri escs. I really really like the way the VBAR flies so I want to make it work

I have no idea what red/green flashing means. I was hoping someone could tell me. Another guy who was with me thought it was flashing more like pink or purple with the green. Could someone point me towards an index of these color codes?
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Last edited by wstuart; 07-06-2021 at 03:45 PM..
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Old 07-06-2021, 02:45 PM   #6 (permalink)
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Quote:
Originally Posted by jadams View Post
There was a bad batch of boards in neos a while back. If you pressed on the case it would power on/off.
On another note you state it powered off 3 TIMES on the bench!? Yet you flew it??


On my other model (Logo), yes I have been dumb enough to fly it after it unconnected on the bench. A couple people I trust said that this can happen when the radio is really close to the neo and you have just powered up. I've flown that logo without issue, but I did install a large back up capacitor on that model just incase - also because I'm worried about static on the logo.

I should have put a capacitor on this Raw too but I didn't. I think it would have helped. I'm going to switch to Jive Pro 120 and use a capacitor before I fly this again.

I'll see if I can get the log off the radio.
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Old 07-06-2021, 05:01 PM   #7 (permalink)
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Go to vstabi.com and ask there..
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Old 07-07-2021, 11:23 PM   #8 (permalink)
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"I have no idea what red/green flashing means."

Red/green flashing means that the NEO is waiting to be "bound" to the VCT TX.

This effect can be seen on the "bench".

If you apply power to your NEO....and wait 10 sec....the NEO will start flashing "red/green".

It's in the manual and in the videos.

What I was postulating was that you momentarily lost power to your NEO and then when its power came back....it was looking to bind.

This could be due to the SBEC that you use has insufficient power output....or your battery needs to be re-charged.
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Old 07-08-2021, 10:23 PM   #9 (permalink)
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Only the log from the Neo will tell the full story. Please post that.
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Old 07-14-2021, 05:21 AM   #10 (permalink)
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Only the log from the Neo will tell the full story. Please post that.

Yes, so I tried logging into my vstabi account and looking up the logs on the vbcy cloud, but they were only uploaded from July 1st and earlier (the crash was on July 5th). Is there some other way to get the more detailed log off the vbct. The log I can see on the radio just shows that the model shut off it doesn't say anything interesting.
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Old 07-14-2021, 05:42 AM   #11 (permalink)
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I think he said you had to get it off the NEO hooked to a PC with their software installed?
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Old 07-14-2021, 09:41 PM   #12 (permalink)
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Quote:
Originally Posted by wstuart View Post
Yes, so I tried logging into my vstabi account and looking up the logs on the vbcy cloud, but they were only uploaded from July 1st and earlier (the crash was on July 5th). Is there some other way to get the more detailed log off the vbct. The log I can see on the radio just shows that the model shut off it doesn't say anything interesting.
https://uroehr.de/vtube/cat/vbar-neo

Install the PC software and keyfile, use the software to get the logs off the Neo itself.
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Old 07-15-2021, 08:43 AM   #13 (permalink)
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https://uroehr.de/vtube/cat/vbar-neo

Install the PC software and keyfile, use the software to get the logs off the Neo itself.
When I go to "register" the neo with my vbct the "neo updater" is greyed out. I tried plugging it into my computer but I guess i need to hunt down some driver. Ill see if I can figure it out.

It would be super convenient if I could just see the "real logs" on the screen of the vbct.
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Old 07-15-2021, 09:21 AM   #14 (permalink)
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Quote:
Originally Posted by wstuart View Post
When I go to "register" the neo with my vbct the "neo updater" is greyed out.
You have to register with a smart phone. Have you never done that? They have a video about it: https://uroehr.de/vtube/cat/vbar-neo...tName=vbar-neo

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Originally Posted by wstuart View Post
I tried plugging it into my computer but I guess i need to hunt down some driver. Ill see if I can figure it out.

It would be super convenient if I could just see the "real logs" on the screen of the vbct.
This should tell you all about connecting it to the PC along with the necessary software downloads: https://www.vstabi.info/en/node/1995
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Old 07-15-2021, 09:40 AM   #15 (permalink)
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Quote:
Originally Posted by fiddle View Post
You have to register with a smart phone. Have you never done that? They have a video about it: https://uroehr.de/vtube/cat/vbar-neo...tName=vbar-neo



This should tell you all about connecting it to the PC along with the necessary software downloads: https://www.vstabi.info/en/node/1995

Yup that's the video I watched. So in the video he presses a button on the radio that I think was labeled "neo updater" . That button is grayed out on mine so I cant get the qr code. My vbct is on my home wifi and my neo is plugged in and working..... im not sure why the button is grayed out
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Old 07-15-2021, 09:43 AM   #16 (permalink)
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Quote:
Originally Posted by wstuart View Post
Yup that's the video I watched. So in the video he presses a button on the radio that I think was labeled "neo updater" . That button is grayed out on mine so I cant get the qr code. My vbct is on my home wifi and my neo is plugged in and working..... im not sure why the button is grayed out
are you connected to the model? The "updater" isn't available unless the model is powered up and the NEO is connected to the touch.
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Old 07-15-2021, 02:59 PM   #17 (permalink)
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are you connected to the model? The "updater" isn't available unless the model is powered up and the NEO is connected to the touch.
Yes fully connected. I can fly it, make parameter and setup changes and see telemetry values. I can't figure out why that button is greyed out.
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Old 07-15-2021, 03:08 PM   #18 (permalink)
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you installed the vbar firmware updater from the "shop" menu right?

So, in the same menu, when connected to your model, "Vbar NEO Updater" should appear. It isn't there at all if you aren't connected to a model. Is that the thing that is grayed out? If not, click that.

A new window will open. The QR code doesn't appear right away (won't appear at all if you aren't connected to WIFI). The "Check update" button will be grayed out I think unless your NEO is registered (is that the thing that is grayed out for you?). Once the QR code appears, you can use your smart phone to register and such.
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Old 07-15-2021, 11:10 PM   #19 (permalink)
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Quote:
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Yes fully connected. I can fly it, make parameter and setup changes and see telemetry values. I can't figure out why that button is greyed out.
If the Neo is still on older firmware which does not allow OTA updates then it needs to be updated once vis USB and VBC Manager with the bootplug installed. VBCt would have complained on bind that the Neo is not updated.

If it is updated to the latest firmware then the updater on the VBCt will also not be available.

https://uroehr.de/vtube/cat/vbar-con...ideo/02-en-neo
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Old 07-16-2021, 02:05 AM   #20 (permalink)
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I use a Kolbiri LV on my TDSF and have noticed that the BEC output voltage fluctuates a lot, much more than other Kontronik ESCs. I installed a 1st Capacitor buffer pack which seems to have smoothed it out a bit, but I still get alarms occasionally with the alarm value set at 1V below normal operating voltage.

To be fair to Kontronik they do say clearly in the manual (page 18) that a backup battery should be used (2s Lipo) connected in parallel with the BEC output. I suspect if you follow the manual there will be no issue.
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