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FIVE Common INAV questions, answered
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- Опубліковано 7 сер 2024
- 🔗 www.MrD-RC.com 🔗 / mrd_rc
In this video I answer 5 common INAV questions. Some of which seem to turn up after each new release. The questions are:
- What do I need to do to update INAV?
- What does AUTO LEVEL do?
- What is saved when I save settings or disarm?
- Is continuous servo trim safe on a V Tail?
- How can I put a servo on a different output pin?
✈️ Contents ✈️
00:00 Introduction
00:49 How to update INAV
10:34 What is saved when you disarm or use stick commands?
12:22 What does AUTO LEVEL do and how should you set it up?
14:20 Is continuous servo trim safe on a V Tail or other twin elevator craft?
15:32 Can you move a servo to a different output in the mixer?
17:23 Conclusion
You can find INAV release notes at github.com/iNavFlight/inav/wiki
Thank you for watching this video. Time is precious, so I hope that you got some benefit from this video. If you have any questions, please leave a comment and I'll do my best to answer. Please try to keep questions relevant to the video in, as they may also help others who have the same question.
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✈️ Supporting me and other resources ✈️
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Thank you for your time, and don't forget to fly it like you stole it!
#inav
Appreciate you Darren and all the INAV devs 🙌🏾🙌🏾🎉🎉
You’re welcome Ian 👍🏻
Thanks Darren. Another video chock full of important information.
Thanks Andrew 👍🏻 No leafy sea dragons though. I’d have to go to a public aquarium to get some footage of those beauties.
Must be cold in UK today looking at Darren hat 😂
It does get chilly in that room. That day it was windy too. That window doesn’t seal properly.
just updated to inav 6 yesterday and wondered about the Diff vs Diff all... now I can stop worrying i screwed up lol. Thanks for what you do!
No worries Scott. Glad the video was helpful 👍🏻
Thank you for this sir Daren!! It made understand inav 6 better
Very helpful video Mr. D. Thanks for all your hard work!
Thank you very much for the super thanks JD. I’m glad the videos are helpful 👍🏻
Awesome vid, been needed for a while. Thanks
Glad I could help
Excellent Darren excellent!!
You're welcome Jason
Thanks for the explanations Darrin..😉
Thanks, glad it was helpful 👍🏻
Always fantastic.
Thanks 👍🏻
That thumbnail! But then i found out you can actually buy that t-shirt, haha, omg.
Yep. I tend to think of t-shirts that I’d like. Set it all up on that company so I can order one. Then add it on the store in case anyone else would like one too.
@@MrD Yes i really like that one, so there's one on it's way. Thanks Darren.
Love having continuous servo trim working on my mini talon. Now just need some way to have it work with thermal gliders
Hello again mr D....couple of questions if u don't mind gvg some tips
1.why inav throttle starts at 20%?
2.how to limit maximum throttle in inav
Fyi im using 6.1.1
1. Where the motor starts spinning is defined by the idle throttle on the outputs page. This should only be 5% no I believe. Certainly for fixed wing.
2. Personally, I’m not a fan of software throttle limits. I prefer to use the right motor and prop setup. But, if you really want to go that route. Also on the outputs page is the option to scale the throttle. 1.00 is the default. This is 100%. If you wanted your max throttle at 80%, set this to 0.80.
Thanks!
Thanks again. It’s most appreciated 👍🏻
@@MrD nothing compared to your efforts. 👋
Great tutorial as always. How do you save the auto level tuning? Disable auto level after tuning in flight, land, disarm and then save with stick commands?
Yes, if you don’t have something active that saves when you disarm.
Thanks for the INAV instructional. I was wondering How do you make additional profiles? And how do you select a profile?
You can’t make additional profiles. But there are 3 control and battery profiles you can use. Just switch them at the top right of configurator, near the connect button.
Hey Darren thanks for another great video, I'm no longer confused about auto level, it looks like a ar wing pro in the back ground i would love to see you set it up and maybe do a autotune on it, just curious why i never seen you fly this bird? Thanks again
I’m still finishing it off and need to build the battery packs for it.
Thanks Darren.👍
You’re welcome Mark 👍🏻
Hi Darren! congratulations on the video! I would like to answer some questions if possible. 1- You said to fly a little with Auto Level and then turn it off after getting the parameters. But can I always leave it on together with Angle or Horizon and only turn it off when switching to a mode that doesn't use Auto Level?
2- Auto Level saves the parameters automatically on each flight or should I save them at the end of each flight? Thank you very much in advance!
1. It’s not great to do that IMHO. It’s better to just use it when you feel like the level needs updating.
2 The autolevel does not trigger a save. If you see ** SETTINGS SAVED ** in the OSD, they have been saved. If not, you will need to save them via stick commands or through save and reboot in the OSD menu.
Lovely t-shirt 😂, I know that cruise mode is course hold + altitude hold, can you let me know if the auto level will work with cruise mode or only with angle, horizontal, and course hold? Many thanks
Auto level won’t work with cruise. It needs althold disabled to work.
as always another great video 👍👍👍, what happens if by accident I flip the arm/disarm switch while flying ? can it be quickly be rearmed ? and save the plane from crashing ?
Perhaps it makes more sense to rename auto level to something more descriptive, like LEVEL TUNE.
I did bring that up on GitHub a while ago. But it wasn’t seen as necessary. I may just make a PR to change it, as people do still think it is for self levelling. Especially if they’re new to INAV, it could be confusing.
Hi Darren
Is there a sound pack that includes a track for AUTO LEVEL.
Still great videos, please keep up the great work.
Yes. The INAV Fixed Wing Group sound pack has auto level. It’s at INAVFixedWingGroup.com
@@MrD great, thanks Darren. Quick responce 👍🏻
Maybe it's a basic question, but when updatting from 5.1 to 6.0, shall I prefor the 90% elevon tunig compairing whith the manual movements?
Not needed if you’ve already done the autotune. You only need to do that before your maiden and autotune.
can you change the order of motors the same way as changing the servo order?
No, the motors are fixed. There is a motor order wizard for quads. But I've never used it.
Hi Darren, is it true that continuous autotrim of the servo could damage the fc eprom? because it records and rewrites permanently. I congratulate you for your videos!
No, not at all. It doesn’t do anything different to any other save. It just saves every time you disarm. EEPROM is good for around 100,000 writes. That would take 192 years to get to, if you had 10 flights a week. I think the EEPROM’s ability to write will outlast the flight controllers in most cases.
@@MrD perfect Darren, thank you very much!
Hi Darren, your videos are great. Question: Is it wrong to use Mixed AutoLevel together with Horinzon, Angle and CRUZ modes? Or in INAV 6.0 is it recommended not to have them mixed and only activate it by Switch? That is, is it correct if I have them mixed or should I have it in a switch?
It was always really recommend to have autolevel on a separate switch. Its only really needed for tuning. With INAV 6 its better to have it on a switch. As there is now an onscreen message when autolevel is used.
@@MrD Perfect !!!. Thanks
ive read the wiki particularly the modes section. i havent found acro mode which if i recall correctly is a default mode if no other modes are set. Is there a way to see "acro" in blue somewhere in the related tab?
Yes, at the bottom of the modes page. Acro is always visible.
@@MrD I just realized that il if I connect my plane with inav on my pc “acro” is visible as you said, if I use the speedybee app it is not. Who knows why.
Question: if auto level does the job, what is the reason for adjusting the angle of attack in “mechanics tab”? Thanks.
You can enter a value before doing the auto level trim. A lot of people add 4 degrees for the maiden.
@@MrD just to understand better: if I add 4 degrees, should I then perform auto level or those 4 degrees make the job?
The 4 degrees are just an estimated starting point. Performing the auto level trim will get it right.
@@MrD wonderful. 🙏
Does a brand new Matek F405 wmn also need a Diff all before i update to 6.0?
fresh out of the bag, no model loaded on it or anything.
Does ANY brand new FC for fixed wing need a diff all if it's never been used/just taken out off the box?
No. A brand new FC should be treated as a new installation, not an update. The update is when you have already set up the flight controller for your model.
@@MrD Thanks!
Hello Friend how are you? I tell you that I have MATEK 411 WTE with Continuously trim servos on Fixed Wing active. I have flown 15 minutes straight on ANGLE and it does not register any correction value. What could it be due to? On the other hand, my wing has a tendency to go upside down but the autolevel does not compensate for it. The INAV version is 6.1.1. I would appreciate your prompt response. Thank you!!!
Hi Darren, your videos have been very helpful to an Inav newbie on my skyhunter. I do have a small problem with a 3* roll to the left only with cruz active. Flies strait and level in acro, angle, and manual with continual sevro trim on. Otherwise, no problems.
Could there be a simple adjustment that I'm overlooking? Thank you
That sounds strange. It would be worth making sure there is no trim on the transmitter. Though I'd also expect this to show up in other modes. When in cruise, were you flying with a cross-wind? If so, that little angle could have been to maintain the correct heading.
Hello Darren, yes transmitter trims are zeroed and a constant 3* bank to the left no matter which direction I flew. I have adjusted 3* of board alignment in roll axis just to see what happens. I'm currently waiting on better weather to test. I will report results. Thanks for your interest and response. @@MrD
@davidtaylor9508 if that was off, you should see it on the setup page in configurator, if the wings are level.
I will put a level across the wings and double check the alignment there. Thanks for the tips! Hopefully I get to fly tomorrow and retest.@@MrD
Hello again Darren, I got some flight time in today and some testing. With the board double checked at 0* wings level the plane transitions into a 3-4* left bank roll switching from angle into cruise. I tried adjusting 3* either left or right which only changed the displayed numbers but still had an induced left roll switching into cruise. It is my understanding Inav uses the GPS in cruise mode for course hold. Could this be a GPS issue? @@MrD
Hi Darren, great video!
I have a question. Can I controll a servo by the home arrow in Inav? It would be a great option to build a long range UAV with an antenna tracker with a patch antenna on the plane. What do you think?
Thx
People often come up with this idea. But it’s really not good or practical. A patch antenna on the plane would cause a lot of drag. Also, it wouldn’t address tilt. The best option is a decent quality, mild, CP antenna on the plane, around 3dBi. Then have the patch on a tracker on the ground. You can easily fit a more substantial, higher gain antenna on the ground. Plus, you would have a much lower chance of being out of beam or hitting a null; compared to having patches at both ends.
Thank you for the quick response, Darren.
I 3d print my UAV's. I could design a dome for the patch. When you take a 180 degrees patch you wouldn't have the issue with tilt.?
I would love to test that :).
A 180 degree patch wouldn’t have much of a gain advantage over an omni. Even with the dome, you would still get additional drag.
Darren (or anyone that might be able to help), I have a question about Auto Level. I have followed your procedure for this tuning mode, on 2 crafts now. It feels like it is making corrections to the AOA but where can I see the results of this tune? I thought that it would adjust the Fixed Wing Level Trim, Level Trim [deg] (in the Mechanics tab) but on both models this field is still 0. Am I looking in the correct location for this or is there another way/place to see the results of the Auto Level tune? I just thought it odd that 2 boards are both still showing 0 adjustment after having ran the procedure.
Yes, it should be changing Fixed Wing Level Trim in the PID Tuning->Mechanics tab. If its not changing. Are you saving after you land?
@@MrD , thank you for the response, I have Continuously trim servos on Fixed Wing turned on, which should be saving at each disarm. When I noticed that the level trim was not changing I also began issuing stick commands to save just to make sure, still same results. The strange thing is that I saw it actually correct the pitch trim in flight on both models during the Auto Level process. Once I got home and checked, both models are showing changes from Servo Trim and Auto Tune but 0 degrees for fw_level_pitch_trim. Unless you have any suggestions I will just manually adjust the pitch trim and send it. Thanks for this awesome channel and your website!
@@MrD as a follow up, I ran the same procedure on a perfectly still morning and it corrected one board by +1 Degree, so it is working perfectly as it should. I guess I did a good job with the install and the boards are mounted very close to level. Now I can enjoy the fruits of my labor and get to the fun parts. Thanks for the huge amount of helpful content that you have provided for the community!
Awesome Chris. I’m glad it’s all working as expected 👍🏻
Just confirming. Even when you perform Auto Tune or Auto Level it will be saved automatically? No need to put the sticks on each corner to save? Thanks.
It depends what you have set up. Neither of those two will save on disarm. But, if you have continuous servo trim or stats enabled, they do save on disarm. That save will save everything.
Easy way to look at it. If the OSD shows ** SETTINGS SAVED ** in the system messages or stats screen, a save has happened. If not, you will need to save with stick commands or through the OSD CMS Menu.
@@MrD Thanks for that. How do you enable STATS? Have not seen any option for that. Thanks
Its an option you can set in CLI.
@@MrD Thanks. can tell me what line? Do you have a video for it?
Hi Darren would it make sense to have autolevel and angle mode acivate together?
I personally don’t think so. It only needs to be used when you tune angle of attack. Also, you would have an ** AUTO LEVEL ** message on the OSD the whole time.
Thanks very much for the clarification Darren, keep up the good work 😁
Thanks Darren for all the hard work on inav, so I've been combining auto level with horizon on same switch but if I understand correctly I now will fly in horizon, land and save using stick commands? Also in inav 5.0 should altitude hold be combined with cruise mode or is cruise fine without doing this? I've been flying with inav 3.0 and never combined these two. Thanks again
No, you don’t need althold with Cruise. To be honest, althold isn’t needed with any mode on fixed wing now.
As the comments above. I would have auto level separately on my tuning switch. Then I can enable is as needed in Angle or CRSH. It also works in Horizon, but I don’t use that mode. It can be disabled in flight. That has no effect on saving when it’s disabled, the value is remembered until you unplug the battery. When you land, saving depends on what you have set up. If it saves automatically (continuous servo trim or stats enabled), there is no to save with sticks. If not, you will need to save with sticks or through the OSD menu. 6.0 will display a message when the settings are saved.
If you’re still on INAV 5. I would highly recommend updating to 6.1, which is released today. INAV 6 has huge improvements in the flight dynamics. Plus helpful things like the saved message.
@@MrD thanks for all the help, I'm almost done with my 3rd ar wing pro build and trying to understand fully how to tune correctly, so I guess I'll have servo trim,auto level and auto tune all on separate switches fly enabling these in this order one at a time then disable modes then land and save settings. I haven't seen this done like this but what's your opinion? Thanks again
nOOb question: why should I use auto level? If mechanically the plane is all set it should fly ok!
Just asking.
The angle of attack can vary with airspeed. Flying slower will need a greater angle of attack than flying faster. Having a mechanically well set up plane is great. But auto level will fine fine tune this.
@@MrD subscribed!
Watched the while video. So very clear also for non mother language. Thanks.
A question please: let’s say I have my plane’s lights on ch 9 on the radio. How can I assign that channel on inav? In the various tabs i can see modes, killer switch, auto tune etc but there’s no light button or so. Can you enlight me please?
You would need to set that up in the mixer. External lights would need a PWM switch to power them. Such as the MenaceRC switch.
Or you could use WS2812 LEDs, which can be hooked up to the LED pad for signal.