Finally trying out GPS Rescue mode in Betaflight for LONG RANGE FPV
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- čas přidán 29. 08. 2024
- I've been wanting to play around with the semi-autonomous features that betaflight has to offer, and then use the things that I learn to go on to different firmware like iNav to mess around more and more with those types of features. With this current state of life, I finally have the opportunity to mess around with those settings, and it's been a blast - even if it didn't go perfectly. Betaflight GPS rescue mode allows betaflight drones to have a *basic* return to home functionality, and I take it out to a field to test it out.
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#betaflight #returntohome #gpsrescuemode
Your not a failure. You have made some of the most entertaining videos, and I have learned lots from you.
Make sure you change the failsafe in BF from "drop" to "rescue" also helps to turn the sanity check off while testing so the distance limits are turned off.
Held your own With Neil and the gang! Great job...If there is anyone in the community that was spot on for that appearance it was you! I often fly out of video range and hit my gps return.. It's that reliable for me.. I do use Matek f-722's which have a great barometer.. And for best GPS I use the larger modules. They hook up better and faster, and are much more accurate when you toss the quad around..
I messed with gps rescue a lot, still not something I’m comfortable leaning on though. Some things I’ve noticed:
Even with an FC w/barometer the altitude control is quite bad
The return altitude default is to go 15m + max altitude of flight or your set altitude (whichever is greater)
There is what feels like a permanent change in the PID values until you restart the FC after you used rescue, don’t try Acro until after a land and unplug
@19:58 pretty sure if you failsafe twice without a reboot you get disarm on 2nd failsafe.
@24:23 100m + descent distance parameter is the min distance before gps rescue will engage. You can set the descent distance to the min value, which then causes the steepest descent, but most situations we retake control long before
@26:06 No idea here! Maybe that radio sends a disarm when it’s powered off gracefully?? I would really like to know why this didn’t work this attempt...
Please keep working on this! I know it’s frustrating, so much effort to figure it out when you have long walks and/or repairs after failed attempts 😆 It’s extremely valuable info though seriously! Thank you!!
I'm wondering were you simply not far enough away? When u were at over 1200 feet distance it seemed to work, but I'm crying thats a beautiful frame friend... n she can take a beating! Thanks nurk! N beta devs!
The pretty sure after second failsafe it will definitely disarm and you can’t rearm either. Ask me how I no🥴
Just curious.. I’ve never built or flown a drone, but I have programmed gps sensors on microprocessors. I can get fairly accurate altitude from gps if I have enough satellite locks. Also, why not use lidar or sonar to assist height measurements?
Pat John I don’t think there’s any issue getting accurate altitude measurements, 11+ satellites seems pretty capable, and the onboard barometer seems to to give even more stable readings. The problem seems to be betaflight guidance code ability to combine pitch and thrust values to achieve a vector while getting sensor data that’s probably very lumpy.
As far as combining more sensors, I don’t think lidar is helpful until you want accuracy down to centimeters, which we really don’t need. Barometer is cheap and does everything we need sensor wise, the gps rescue code just needs some more TLC from the betaflight devs
Jon Davis that seems like an easy problem to solve. Even on arduino you can handle gps updates a dozen times a second. They probably tone the refresh rates down on gps/barometer to conserve power during normal operation as their is no need for that much data. They could bump up sensor refresh during gps recovery and if there’s processor constraints maybe tone down things like controller inputs from antenna
Nurk, I really admire how honest your videos are. You're not afraid to show us your failures which makes your videos very real. Anyone who builds and flies drones knows we make plenty of mistakes, that's the only way we learn & evolve. Love your work.
It is fascinating! I remember testing it and having the same impression. I was up pretty high once and my Nirvana shut off completely. Should have checked the batteries beforehand. The quad stayed in the air and pretty much kept its position. I grabbed a new set of 18650 and replaced them, turned the TX on and was able to gain control. Scary as hell.
Ishy P which protocol was your quad on CRSF, SBUS, etc?
@@digilogic1812 crsf
Can it ever be frustrating to be a pioneer! paving a way for others is needed, but man can it be challenging. I was going to say how easy you had it with BF's new GUI easiness, but bless your gps, when you got in the field you had many of the same challenges the rest of us Pioneers have not been envious for some time. Keep at Bro!
Well, I'm not the only one who has had that happen to. I've tested GPS Rescue four times now, on two different quads. Twice on each quad it worked perfectly as it should and twice it has failed, identical scenarios, my quads nose diving, flipping upside down and free fall to earth. I've followed all instructions to the T and so far I've not been given a reasonable explanation as to why rescue failed, even Mr Know it All was unable to explain. My lesson learnt, have it setup, don't play with it, use it genuinely for fail-safe rescue only and fingers cross it works when needed
My conclusion exactly. It's just not consistent enough to count on.
@@JoshuaBardwell cheers, I’m glad you respond with your thoughts Joshua. Since we communicated about this I now have GPS rescue setup on my two long range cinema quads for emergency only, all my freestylers have loud buzzers. On my large 5-6 meter scale FPV cross-country gliders I use INAV.
Great video mate. I had this problem with a 7in I built up. Was running the full digital DJI system (radio as well) pushed it to the limit and lost contact. The quad never came back. Checked the last footage that was recorded on the googles and headed that direction. Luckily for me I found it as the Hellgate buzzer was working away and got it from down a steep bank in amounts bushes. That buzzer saved my $1000 drone. What I did do was play back the footage from the air unit and found when it lost radio contact it did failsafe 1 and then failsafe 2 did kick in as the motors started up again but not enough grunt to get it up. Hence back into betaflight and fount that the setting for the throttle in fail sage was set too auto which just resets to 0 throttle. I have set it to hold now but have not had the balls to rest it out. It's a bugger you have had the same issue as I was hoping all would be well. But looking at @Joshua Bardwell comments it looks like it's just not that reliable. Great video and thanks. 🤙🤙
This is the best of both worlds! I cant imagine "Fail safe-ing" as an FPV Quad but instead of falling out of the sky just safely returning to you automatically like a DJI! Awesome.
Can't wait for next attempt. Thanks for taking us along. I have been mess with the same stuff
I’ve just watched your other video, you’ve mastered it now. Topman well done.
This is a very helpful video for a guy who wants to fly safe and not lose my quad.
this is something i wanted to learn for so long ... thanks nurk, you all american stay safe !! a hug from italy
Hey, I'm also Italian
Reagan Films thanks we love you 🇮🇹 🇺🇸🇺🇸 🇮🇹 Italy. Although, I 🤔 think we’ll take a hard pass on that hug at least for a few months.
Yeah thx for the hug but I'd rather be alone tbh
An absolute great video Nurk.
Watching the way you behave the humble type of character you display connects to the average Joe out here..The drive to keep on pushing even after a few failures shows the commitment you express in your videos..
I’m glad you did not edit these parts, because
It really reminds us that try and try again to keep learning through the process.. The long walks to find our drones and hoping not to see them destroyed or even finding them is a treat!! Always love watching the human aspect you give us.. The highs and the lows..
It all matters!!!
Great Job!!!
Dude! Much appreciated for this video. You took the hits for us :) Was going to head out and do this for my 7 inch rig, now i am informed better!
Honest test. Brave. Honest like a man. Thank you
You're such a legend for doing all of this so I don't have to make as many mistakes
Not a failure. You’ve done some great research for us noobs! Thanx for your time, help and quad sacrifice.
damn. that's frustrating. Thanks for showing your frustration as well. It's so important to see these failures and learn from them. I appreciate your time. You were very brave to do that several times to the quad so we can learn from it. Hats off to you!
Man I was really rooting for you on that last attempt. Sometimes I miss my Naza equipped long range setup. It’ll be awesome if you get this working, the awesome flight performance of Betaflight with the safety of return to home / gps rescue. Thanks for putting in the work I’m staying tuned.
FinalMile FPV me too I’m staying toned also!
Always fun to see what Nurk is doing. Nice testing.
Just maidened my first 7" GPS rig. Very addictive! I set it up just as Bardwell recommended in his GPS vid. Works like a charm.
I've been really interested in this feature also.Looking forward to see you sorting it out.Thanks for posting.
I was considering getting one of those new micro-LRs that're all the rage right now.
Given GPS rescue is one of the headline features, seeing how to get it working well is a valuable thing.
Thanks for the video! (I've got your "I got it to work" video enqueued.)
Before this video even starts i legit ordered this same fc and esc well before seeing this. My stoke level is way high now!!
When Nurk said "That was not what I expected" it pretty much sums up my experience with BetaFlight GPS rescue..
Excited for part 2! This is good learning
Another useful video. I was just setting GPS rescue up today. Thanks!
Enjoying the content brother. Also love the fact that you show your mistakes like wrong way props, no prop tool, crashing in the mud, stuff like that. I definitely can relate. “Enjoyable failure” lol
the long pause before the walk 😂😂
Nice to see this video, I built a P399 dead cat for a friend of mine to do exactly what you are trying. First go around the GPS wasn't working so great. I think i had the GPS on not a good UART it would drop sats alot and the arrow to home was not consistent. Then on one GPS rescue the quad disarmed and pancaked upside down on the only small strip of hot top in the area messed up some motors and trying to fix it the ESC smoked. Not to be done with it, he got a new set of motors ESC & a FC. I rebuilt it and it seems to hold sats now and the arrow home seems to be more solid now, haven't had much more time to do more testing. We haven't tried the fail safe rescue mode yet, trying to make sure the switch activated GPS rescue is working solid first. Hope you get this figured out we could use some help before he trashes the quad or worse looses it. Good luck Nurk
Most realistic video ever
This is how normally things go down !
Gps is a must for me even onmy freestyle quads it just gives more info that comes in handy from time to time.
Fascinating. I understand what my HS720 is doing now. Thanks!
The failsafe switch is just that a fail safe. It’s made to drop the quad out of the air.
GPS rescue is a totally separate feature. I’ve been here before. Next time. Don’t have a fail safe switch set. Just turn the radio off with the Failsafe set to gps rescue. Then it’ll work by Turning the radio radio off.
That failsafe switch is an emergency stop switch.
Great video wise to choose an open area.
You can define what the failsafe switch does actually in the failsafe section.
That is just incorrect. You can define the failsafe switch to work the same as GPS rescue. What is different however is what the receiver is set to do when there is actual loss of radio link.
@@KristjanB Either I don't understand what you mean or you don't understand what I mean :) What I was saying is that you can define what the failsafe switch does (ie stage 1 or stage 2). I'm not talking about the failsafe action on an actual failsafe, I'm talking about the simulated failsafe via the switch.
You rock bro!! Even when if fails we are learning a lot
Thanks for posting this as is. Learning and experimenting as well and this helps.
I must say love these types of test videos, so interesting. I hope you manage to get it to do the fail safe RTH. Great video and great flying. Cheers and stay safe buddy. Total lockdown here in the UK! :)
Haha, wow, the drone left a mark in the field, literally. Amazing how tough they are nowadays. I always think it is in 100 pieces when I crash mine, and often it is just a prop, broken wire or the battery dislodged. I am amazed it survived 300+ ft, even though it is soft ground, THAT IS ONE HECK OF A DROP!
PERFECT TIMING!! I just got my micro long range 4in build done and maidened without gps rescue. Now to get that gps going! Thanks Nurk
Dude. Thank U! I just now discovered U and wish I'd stumbled upon U sooner, I just got into FPV less than a year ago and I've been trying to figure this shit out but people (at least around here) DON'T think like I do. However, U do. Whether that's good or bad, I'll let U know how that works out for me...
😘
I remember that look/feeling of frustration. I’d love to watch the follow up. I’m looking for it now
That defeated look at 26:20 I think we all know it too well. :(
Yes that’s the exact look and saying.
Love these long videos, keep it up!
I love these types of videos. I'd be really interested to see it working the way you wanted it to
This is very cool stuff thank you Nurk. It may not work perfectly for failsafe scenario but in the event that you just loose video it would be a nice insurance policy to have. At least if you do crash you have a record of the last known GPS position to help find the quad in the event that it is in a tree or wedged in some rocks or burried in the snow a half mile away.
What you need to do?... RTFM! It’s very well explained! I got it all working like a charm... One hint: fly out more than 100 meters to prevent disarm when Rescue kicks in...
My guess is that you've set a failsafe switch, and set it so that when Rx loss, the failsafe switch goes to failsafe, with the failsafe switch set to cause stage 1. Stage 1 has the failsafe switch set to failsafe, with the switch set to stage 1, etc etc etc.
Set the failsafe switch to fallback to hold like the rest. Plus set the switch to go stage 2, because that's what you want anyway.
This is a story I like, thank you for your effort.
FYI the stage one of the failsafe is what allowed your quad to drop i just turn that effectively off so it goes straight into failsafe gps-rescue after the radios guard time.
Sanity checks will drop you out of the sky if you enable Gps rescue too close i always make sure i am about 200m from home but then again i also turn sanity checks off as they annoy me tbh. Downside without sanity checks off motors wont turn off when it crash lands could burn an esc.
I get bitched at by the devs all the time but to me sanity checks are not worth it as they just keep disarming a drone if anything is not totally perfect. You drop a sat disarm thinks it hit something disarm enable rescue too close disarm its incredibly annoying and really needs turned off tbh.
I think its like VTX tables they put it there for liability sake not because its actually useful with sanity checks on.
I would not in a month of Sundays fly over water with sanity checks on.
jus getting back into FPV... great vid
Thanks for sharing even when it doesnt go they way you meant. I feel your pain, been through most of the things that happend too you. It sucks, but that only makes it feel even better when you get it working!
Super interesting topic @NURK FPV and fun to see how you accidentally dipped the drone in some mud before presenting it for the 1st time inthe Video... ain't that just typical :-)
Great video! You would have been a failure only if you never tried your gps fail safe experiment. It’s so cool that you tried this. Keep at it
The live feed at the end clearly indicated that when it lost the link, it simply disarmed rather than trigger failsafe. I think the Rx failsafe setting itself did that. Go into your Crossfire settings and see what failsafe method is selected. Position or Cut. I believe it should be Cut for BF to properly recognize it as a failsafe with its default settings. You could use Position, but then you'd have to record new failsafe positions to the Rx to tigger the failsafe mode in BF.
Also when you turned it off the first time, it sounded like there was a small delay before it stopped transmitting, which meant it saw your stick movements that flipped it over, then disarmed.
You’re a brave man for trying this. Always wanted to experiment with gps but never had the patience. Looking forward to part 2.
Nerd I mean Nurk lol I was listening to Star Talk and herd your interview with Neil and the gang. Awesome bro. Good job can wait to hear you again on another podcast soon. Shout out Brando in the dronaverse
Thanks for taking one for the team!
I really liked this video. I've never tried GPS rescue. The space isn't available for me, but the telmetery of GPS is really nice. I read all the docs on the wiki, i don't use a compass and the distance data isn't there for me at armed to work. Your transmitter is hot seems like it accepted that last one cammand before shutting off. Keep the vids coming.
Paul, all your videos are fantastic. Your production skill makes the video so easy and natural to watch. And of course great flying skills! I believe I know what the issue was with the failsafe. I went back in the video and your failsafe is set to stage 1. I believe this needs to be set to stage 2 so it can use the selected GPS function. I suspected this because when you used the RTH switch, everything worked perfectly. Great video!
...just glad to see you grow as a person - the flying is coming along nicely as well :-)
You def help keep me so interested in this hobby! Not that I've been in it for years or anything just love watching your content! Always keeps things interesting!
Glad you're here to watch!
Hi Nurk, A few friends and I have been playing around with these settings for some time, I am guessing that you might need to have a look at your sanity checks ie min distance for gps rescue to "kick in" also consider activating the osd function that show if GPS rescue is available or not. Hope that helps a little. Also something that helped us was to drop min Satelites to 5 as we had a lot of GPS drop outs from 15 down to 6.
never used it but i know that team at Brain is top shelf and they have awesome tech support aswell . Ive met them and can tell you these are very cool people to hang out with aswell
Possibly while experiencing loss of control link your RC receiver failsafe settings could to be overriding the flight controllers commands
I have had mine set up since last summer,,still have not tried/used the feature, but my 7in Cruiser is fun to fly..SO SMOOTH!
FWIW, the arrow didn't point where you expected initially because the arrow is based on direction of movement over the ground relative to home, not the compass, and you were moving
a little sideways or backwards at the time. Similarly, when it quickly turns its nose back toward home when you trigger GPS rescue.. that is also based on the arrow direction and your movement, so if you happen to be flying sideways or backwards when GPS rescue is triggered, the quad will snap its nose in the wrong direction and start flying forward some direction other than toward home.. Eventually it'll make a wide banked turn back toward home just as an airplane would, but it can be disconcerting to see it fly away. This can also happen if you're flying fast downwind at low level, having flow high somewhere earlier in the flight. It'll snap its nose toward home.. and start climbing way up to the highest point + 15m (or more), but the nose will drift off angle and the wind will keep pushing it further from home.. It may finally sort itself several hundred feet up, fly away from home for a while, and then slowly loop back toward home. I've seen it go a quarter mile or more away from home while it's doing all this.
BTW, I suspect that the altitude regulation issue is a conflict between the desired RTH ground speed, and the maximum pitch angle that's allowed. If the maximum pitch angle is not enough to achieve the desired speed, then when it tries to accelerate toward home it climbs instead.
Good video shows the leaning process
I really appreciate your content Nurk! Always interesting to watch.
Wow! thanks for making this video! I just got my GPS unit and ready to install them this weekend on my FR7 long rang rig.
Hey man, love the consistency: uploading very often, not wasting time. Keep it up (already subscribed)
Set your Crossfire failsafe to CUT to let Betaflight take over.
You are not a miserable failure you are Da Man and I hope you get all you wish for
Dude that roof awning is like a damn trampoline bro 😎 lol....Nice flying bro dope as f
Aweosme content man! Love the raw uncut stuff. It’s not always rainbows and it’s good to see the professionals go through the same as us beginners lol
Great timing. Got two fresh builds and GPS modul es
26:20 I know that feeling all to well...
Keep the videos coming! Just got done watching the DRL 2019 complete season this morning!
Super good content. Fun to watch and informative
awesome im looking forward to a part 2 to know what Im doing wrong.
Some one once said -just set a switch/mode to RTH in BF then fly far away to be safe, now bring the bird down to the ground to idle and flip the switch -oh wait pray first then flip da switch or turn off the radio, if all goes well it will rise up and come home like a prodigal child. If not back to the drawing board.... Still working on mine too....
love the camera work while flying
Look forward to seeing progress on this. I have gps rescue on my 7" quad, and like you can enable it via toggle switch and it works. But I haven't had the courage yet to do a full power-off on the Tx yet! :-) For your setup, it's gota be a configuration issue. Either betaflight gps rescue stages or Crossfire failsafe settings. BTW, get a Vifly Finder 2 buzzer. Well worth it!!
Hi, I had this issue last year, with my LR quad to solve it, it's simple in BF go failsafe tab,
and set your failsafe switch with the correct value" ON "(1500 , or 2000) otherways when you switch off your radio
the quad will just fall down, no failsafe activation. ;)
that's it you are good to go Hope this help !
cheers from France.
That is a very good point! I just now went and implemented your suggestion on my quad. Thanks!
@@keitharoo1962 Nice ,happy you found this tip usefull have à Nice Day and good flight 😉
I thank you for doing a gps recovering video was looking for one.
Thank you very much Nurk! Very helpful.
Thanks for your videos, and this test... good to watch, braver than I am. Good thing for the soft landing.
Great video do more on this subject no really covers it very deep. Plus I just flash my 7” to iNav gps/compass& barometer.
Inav IMO is tons better at return to home. Or failsafe return to home than BF!
Inspired to make my own now thanks!
That information is much appreciated, thank you.
Good information! I just wish I knew more about it, but I am learning by watching these videos.
On the last run you hit "failsafe" when you were only 320 feet out. It won't work that close. Another thing to be careful of, if it goes into "failsafe" because it gets out of range of the control radio, when it comes back into range it will switch back to the control radio and do whatever the controls are set to. You have to be ready to FLY it, especially if you leave it in acro mode and/or the throttle is too low. The best thing to do is switch your failsafe switch on if you loose the radio link so YOU have control of when the control radio is back in charge. That way you can be ready to take over.
It’s the stage 1 and stage 2 settings you need to adjust to instant and no delay otherwise it drops before kicking in , its around half a second which even if high enough it never recovers , lost a Cham 7 in exactly the same circumstance as I assumed it was the same settings as rescue switch
Hey Nurk, thanks for this vid. Helped me set mine up!
Keep on keeping on! I always seem learn something from you too. Thanks man.
@26:06 check how the failsafe is set up on crossfire, it has to be on cut
"Cut" is useful when the model has a controller installed which then executes its own failsafe
routine
- "Position" is intended for all other models or when the controller expects a certain channel
position
(source crossfire manual)
If yours is on position gps rescue can't kick in because the fc got the disarm signal
it's because of the delay of the crossfire failsafe. That's the only thing I can think of. I noticed that on the last 2, right before impact, it tried to recover, but it was too late.
On my Xfire rigs, failsafe takes 3 to 4 full seconds to actually register back at the transmitter. If you notice, it took roughly the same time for you to get the "THROTTLE" warning.
When you use the switch to failsafe, it's faster because it never actually lost signal. But when you completely lose the TX, it takes 2x the time to register as a failsafe because the RX is waiting for the signal just in case it can grab it back.
Nice was just thinking about this subject. Thanks and nice job well done. . PS love how you have the 4 angles up on screen
I am a beginner so I can't help, but better that you failed than me with my only quad. Thank you for testing, I hope it gets figured out soon, and with as little dmg as possible.
haha yeah there's a high potential for damage
15:55 - it didn't start dropping because it was too close but because it lost gps signal. That's why it stated "Rescue n/a" and you can see in the top-left the number of satellites locked was down to 5.