The GPS receiver antenna is actually the thin foil sticker on top of the ceramic block. Before wrapping it in tape, it's a good idea to cover it in heat shrink first to protect that foil layer. Otherwise, when pealing off the tape, there's a good chance the antenna comes with. The best lessons in life are learned through pain . . .
About the accelerometer drift, here is an old post I made describing how I fixed it on one quad if anyone is interested: My angle mode was broken, and I fought it for a whole year before I finally solved the problem just using betaflight settings. Here is the problem, I start flying the quad in angle mode, and at first it hovers very level. Then after 30 seconds it is drifting slightly. Then after 1 minute it is drifting a lot. Then after about 2 minutes, full stick deflection is not enough to keep it level. I would name this behavior "Worsening Drift". Here are the three settings that fixed it for me. This is the default: set acc_lpf_hz = 20 set accxy_deadband = 40 set accz_deadband = 40 This is what I changed it to: set acc_lpf_hz = 1 set accxy_deadband = 80 set accz_deadband = 80 Now it can hover very level for the whole flight. Its perfect. I don't fully understand why this worked. I suspect the increased accxy_deadband is the most important setting. I really needed angle mode to work on this quad because it is a small FlexRc Owl that I give to novices if they want to try flying a quad.
I've started having artificial horizon drift after upgrading from 3.5.7 to 4.1.7. Since the settings you have mentioned are no longer present in the BF dump (still there in 3.5.7 though) I'm wondering how could I solve the issue which is exposed in details also in this RCGROUPS post: www.rcgroups.com/forums/showthread.php?3661241-Matek-F405-CTR-vs-BF-4-1-7-%28or-4-2-0%29#post45028661 I only fly air mode but this issue is basically preventing the use of RTH on my 6"... Cheers
Hey Joshua, I just want to thank you for your in depth coverage of Betaflight GPS Rescue as well as all the other pod casts you have done. Flight training, build, setup, and etc... I also wanted to say how impressed I am with Betaflight rescue mode. I recently finished a 7 inch build, my first Betaflight build and have been working on getting rescue working. I am on Betaflight 4.1.2 and after some adjustment with the hardware (accelerometer was upside down). Rescue mode works like a charm. I love the fact that everything is displayed in the OSD. I always know when failsafe and or rescue is enabled. The behavior I am seeing is a return just past home and the begin some kind of circling before starting to ease down. Thanks again!
I've gone on from using zero protection (not even common sense sometimes). Now I'm adding an active buzzer/beeper to every quad (whether built by me or BNF). No longer am I buying any VTX that does not use some type of smart audio. My antennas got upgraded from omni to lollipops and I finally got a decent pair of goggles. My most recent build was built with the intention of creating a waterproof 5" racer. It turned out great! Probably the fastest and definitely the lightest weight I've got. Now I am considering building one more. I plan to add GPS to my next build, bringing the evolution of my build quality to a new level! Always need to check this channel to sort out or confirm/debunk something like quad build or quad pilot related questions and scenarios! It's like the online holy bible of quad!
Wow, talk about a timely video...I lost video on my quad last weekend and immediately ordered that very GPS module from RDQ, this video will save me tons of time researching how to set it up. Very well done.
First time ive ever flown a quad with GPS. Gotta give you Props! You had to study this to make such a comprehensive video. Thanks again JB! You Got my vote!
good topics, saved for later (when my little chimera4 arrives). you know that you have to start your video index with 00:00 for youtube to auto-add chapter marks on the red bar? makes it even easier to jump / search thru videos...
you are one of the best things in this hobby. I just want to know why you use that sad music at the end of your videos. It sounds nice but its so sad and cold. I think its time to fresh it up!
I've been tested this GPS . With remarkable results. It will have ultimate sats even sumerged into 3 inches of hot glue totally covered , also inside of a long range plane made of fiberglass totally in the bottom of the plane. In short it will work extremely well in just about any environment.
I like to set my min_sats to 0. This is because sometimes with heavy cloud cover or other sky obscuration you can't get enough satellites for a 3d fix and you are grounded. With min_sats sets to zero you can choose to fly without a 3d fix if necessary. When activated without a 3d fix, gps rescue will default to angle mode and can still help for momentary failsafes.
0 sats, is bad idea. Clouds have almost no effect on the signal quality and the number of satellites, only the power feed. Any bad gps have cold start 2,5 minute (max), if you have more than 2,5 you have bad build quad. Use ferrite ring on gps wire. Chanel and video about gps. th-cam.com/video/dsKz01WPppk/w-d-xo.html
Alexandr Bazanov and you won’t get a fix if you need to return to home, you need at least 4 sats before you arm to get a fix so it know where to return to. If you set it to zero no point in having the gps in the first place
@@gizzmomambo I also set it to 0, if I may need GPS rescue I wait until I have at least 8 sats. But if I fly in buildings, or hanging in a tree, the quad will arm without a problem, yes you have to think about it before you arm, but it don't prevent you from arming if you have not enough sats for GPS.
So with GPS the quad will not even arm unless it has a fix to your min_sats setting? That sounds potentially problematic in certain situations. What about turtle mode if you have no satellites?
From an experienced GPS flyer. A failsafe GPS is good when you fly in open area where you have space to a ascend to predetermined altitude. It will be horrible if you fly below tree canopy and lost signal. The quad will try to shoot itself into treetops and get stuck and continue to push until all motors are burnt or battery is completely drained if you can't find it. Another scenario is one of the motors/esc fails in-flight and the quad plunges into the ground, losing signal in the process. If you didn't disarm in time, GPS failsafe wii kicks in and push all motors to full until radio signal is recovered. Not to say GPS is bad, you just need to be caution.
@@JoshuaBardwell So pretty much it will only be bad if you strike a kid with the first hit? This is my main concearn.. hitting people with a 600gr carbon brick or hitting people with spinning rotors :-D Give the 0,001% chance either will happen.
27:55 is a good average for your videos and well worth watching. I've been waiting for this video sense I will be completing my build hopefully tomorrow and will be playing with GPS features. Speed is all i really want, rescue is just to play with. Thanks
The best GPS module video to date. No reason not to be integrating this into builds. It's so cheap and easy. I have it on one already, moving forward it will be on all my 5" builds.
I think its a good start but it doesnt do enough IMO for beginners. we need some of that dji goodness for redundancy to get peoples interest back, Noise is what causes accelerators to drift.
@@JoshuaBardwell the wires position specially if the power wires are in top of the flight controller, wires not twisted, flight controllers are not shield. Plus motors created magnetic fields too, some dji need to be degaussed in order to flight true.
Honestly, I feel like this gps-failsafe mode is more dangerous for beginners than the drop from the sky failsafe mode. Because when the quad drops from the sky, the behavior is completely predictable. It drops from the sky like a bullet and hits whatever is beneath it. The only unpredictable thing is how damaged your quad will be. But with gps-failsafe your home-point may be a "kinda close but normally safe enough" distance (like 100m) away from a road. Now you fly across the road and 100m further gps-rescue gets activated. The quad flies home, starts descending and descends right into a car because you fail to take over because you don't know that you really need to land manually because you are just a beginner who hasn't completely understood gps-failsafe-mode. Or if you are trying to copy Steele but you don't have his skill and are flying in a city between houses, gps-rescue gets activated - the quad ascends but not high enough and slams into a building. I am NOT hating gps-rescue mode. I think it is really good for some people. However it is one of the features that should never be on by default and that you should really learn about before turning them on. This video was great for exactly that!
This was actually one of the easiest improvements I've ever made to my quads. I do long range in the mountains (Alaska) and have been going on pure luck until now. Great video!
I lost my 200£ drone as well. It had only 1h flight time. Since that I installed loud lipo-buzzer & Bluetooth key finder for all other drones. Hope it will never happen to me again. This is an expensive hobby :(
Lost one quad to failsafe, and my current quad has bad signal for some reason with XM+. Will try this to save me some search and rescue missions... Thanks for the comprehensive info JB !
With my old Cheerson CX-20 GPS quad (what essentially started me out in this hobby), upgrading the GPS unit drastically increased the number of satellites it locked onto and reduced the lock time, further to that, shielding it from the flight controller with some foil helped it further. I wonder if the carbon plating of race/freestyle quads helps shield the GPS module from the flight controller noise.
love you man as always thanks a million for this!!! tx to rx and rx to tx i got this wrong!! a wealth of infomation!!!!! thanks again from a drunk english man!!!
As an hardcore INAV user (mainly wings) it is kinda funny to see a betaflight expert setting up GPS and talking about OSD elements to be bulky 😅 but nice explanation. Ever wondered how that works on beta. Nice to see it in action.
Once lost my quad and gopro for a week, I chopped all the Bush down to find nothing when I looked up it was stuck in a tree Haha GPS would've been amazing
GPS is awesome on racing quads. Saved my ass twice already. Hopefully some of the 3D print guys come up with some better mounting solutions than the ones currently out there.
I use a 3d printed tpu adapter to put the GPS on the lipo strap, works really god. You also can cage the position if you use bigger or smaller lips. Use a bn-180 on 2 quads.
OH FOR GOD'S SAKE.....HA HA HA HA! I've been working on this for the last two days. That's so funny. I stole a gps module from my old Phantom 2 and began experimenting with it. I also just (literally 5 minutes ago) got an old fc running on INAV (so cool to see the similarities to Betaflight) hooked up to a gps and a scratch built fixed wing to do things like auto launch, return to home, land, loiter above you, etc. What a blast.
I also set my mode switch channel in stage 1 failsafe to angle mode (in my case 1000) , throttle to hold and 1 second to engage stage 2. This will level the quad before GPS rescue is engaged. GPS rescue don't know what to do if you have a failsafe when you are upside down and will drop! Thanks to r9 flex firmware testing I know that this workaround is working :) It's also useful if you use 3d mode.
@@gwizzfpv6741 oh that is what you mean :) In modes tab you configure angle on let's say aux 1 and that the area where angle is active. Maybe 1000-1400 pwm (1000-2000 is the range for your transmitter) So if you have your angle mode on aux1 in the area between 1000-1400 (yellow slider to the left side) You set in the failsafe tab for stage 1: Throttle to hold And aux1 to 1000-1400 maybe 1200. This emulates your transmitter switch position in the first failsafe state. Hopefully I could explain it a little bit understandable.
Take a Digoo DG-KF30, it's an external GPS self powered with a battery. You can see your quad on your cellphone with that. And it do Buzzer also. Without the plastic case is really tiny.
Joshua Bardwell - On failsafe kicking in the concern isn't with anti-taz (it should already be deactivated due to flight), but rather with crash recovery. GPS Rescue uses crash recovery to trigger a disarm on crashes. So if failsafe is entered and stage 1 causes the quad to tumble (usually only if people have motor_stop enabled and no airmode), the self leveling when stage 2 starts could sometimes trigger a crash detection. This has been addressed in 4.0 with a crash recovery guard time whenever a self-level mode is entered. The correct fix is to make sure that stage 1 sets things properly to not enter into free fall with motors stopped though.
Great video JB. It's cool seeing the features come back again. These are basic GPS features in the Mult Rotor FC's beginning around 2005. The original MK FC did a lot more than this...But intended for gimbaled airframes. I flew my Okto's FPV regularly without the landing gear or gimbal. We also had basic RTH features in the fixed wing FC's. I remember when the KISS came out, options like this were removed to keep things...Simple. Rotor ON Joshua!
But, if you are looking for autonomous flight, landings, and even take off, then try iNav. iNav is a fork of cleanflight with extra features built in. Basically like betaflight. So it can run on standard f4 and f7 and even f3 (though not recommended) flight controllers. Pretty cool. Give it a Google search.
Awesome video, Joshua! Thanks very much for this! This video explained more than I anticipated but I've taken notes and I'm looking forward to the non-rainy days.
Nice video. A compass gets interfered by the magnetism generated by magnetic flux coming from the FC, battery, etc wiring. Not using a compass makes RTH much more robust. Not sure if Joshua mentioned it but beware not to engage RTH under a tree or roof, switch or failsafe.
I have a GPS on the quad since the beginning. Nice to see something resembling altitude and speed in the OSD, and transmitting the GPS coordinates through telemetry to the Taranis already proved very useful when I crashed in tall grass where you can only see the quad if you step on it. I mounted the GPS unit slightly further up the arm towards the motor, this eliminates propstrike risk. Those patch antennas are not durable; the silver on the ceramic is very thin. I have also been using the GPS rescue mode for a couple of months now and used it successfully once when I lost video after diving behind a damp hill. But I do have some issues with it. Sometimes the quad flips 180 degrees (that is, upside down) shortly after activation of the rescue mode. It is not 'thrust stops, quad tumbles down', but a 180 flip with the horizon level and the ground in the upper part of the goggles. Needless to say that this is usually unrecoverable :) I know that my accelerometer works fine (and it is calibrated); for precision landings I still prefer to do the last few meters in angle mode and that never let me down. Any idea what might cause this?
Heath Nielsen buying a buzzer should be enough. Video usually doesn’t go farther than 500ft so GPS might be over kill. Even more so when tinys are usually small area or indoor flyers.
Hi Joshua, According to the RaceDayQuads page, Vcc must be 3V3, acceptable range 2V7 to 3V6. You state 5V at 6:26. That will, apparently lead to failure after initially appearing to work OK.
That is correct. I have noted it here in the comments and it's noted on the RDQ product page. There isn't any way to annotate the video, unfortunately, as YT removed that function.
When wiring to JBF4 controller, is it possible to solder the black cable to the pad named "G" to the left of BUZZ pads instead of soldering it to the ESC- pad? Should be the same or am I wrong? Picture is at 6:43
Joshua how you feel now is how I felt a few months ago when i was like hey Joshua why dont you make a video on gps rescue ;).. It works best with a barometer how ever u do not need one, Rssi signal lost it enables gps rescue automatically :) This setting is the best part about gps rescue :) Be careful with the rssi signal recovery it enabling at close range or close to objects is a concern.
I got mad at you once and swore I'd never watch your videos again. But damn it... you're one of the few who knows what they are talking about. Thanks for the help...
Somewhere prominent in this discussion it should be made clear that the DTH is not adjustable in versions of Betaflight lower than 4, and that the consequences of switching to RTH is to drop from the sky if activated closer than min distance.
On my quad GPS works only using UART1, but now I don't have any video in the goggles, not even a gray background with OSD data on it. The VTX seems to be functional, is displaying the channel info A7. Did I disabled the video transmitter from Betaflight?? What shall I do? Thanks!
It's hard to imagine how installing the GPS could reset your vTX. If you see black screen and not static, then probably you are on the right channel. It sounds like the vTX may not be getting image from the FC.
The accelerometer drift is due to temperature changes, when it flight for few time, it's cool down and return a bit to normal, same for heat and cold. I experimented this with kakute f7 ;)
I have not been excited like this long time , may since my first APM wing that actually did work autonomously and returned home ! Just "converted" to GPS one of my quads. It got GPS lock on the "bench" inside my apartment! I have HGLRC Titan Plus F460 stack in it and seems to be not from the "drifty" ones. After enabling accelerometer, It does spins around Yaw witch I found strange but maybe normal considering that there is no compass on board...fingers crossed!
Learned a new reason for... Won’t Arm? GPS position and satellites have to resolve, before quad will arm. Also, using DJI and you can’t see the warning message, but CLI gave me the clue.
From what it sounds like GPS rescue mode is like most medicine, if you take some it will most likely help you but you also have a list of adverse side effects that that could possibly happen at random that will make you worse off then you would've been before you even took it.
You're the damn best FPV youtuber :D Yeah now the GPS Rescue is on the GUI of BF as you predicted :) Thanks for your help as usual. I couldn't even start flying without your videos.
I have those on both my smooth operators and the place to display the coordinates is the TX screen I also log Max speed min RSSI ect. I have found flying with home pointer lets me fly in really dense woods, It's good fun flying over the canopy diving in completely lost and follow the pointer and if it goes wrong I can put the coordinates into google maps I my phone.
Dang! I could not care less about those cheap JPS units... until I watched this and hear I am buying half a dozen, thank you JB! Cool T-shirt bytheway :)
@@JoshuaBardwell Hi...thanks for your reply...Since I am using acro with accel OFF, is it okay tu turn accelerometer ON? Does it effected with acro mode ? Thaks again Sir
I've been going further with my cinepro 4k lately. I converted it to 3" and added R9mm. VTx 25mw is already going over half a mile. Thinking if I go any further I should add a GPS. My buzzer isn't even loud. But not sure where to mount. Guess I can put on a arm . I run big batteries too film longer so not much room up top. Thought battery strap but after you said could break idk
Just had a thought.......it would be great if betaflight was able to detect the bitrate of the dji system so that for example if the bit rate hits 0 mbps for more than a pre set time then the gps failsafe would kick in. So a failsafe for Rx loss and also video loss!
I don't have the SDA and SCL pads on my flight controller, but I do have those pads on my Crossfire Nano. I assume I can put the SDA and SCL wires from the BN-880 to the Crossfire's SDA and SCL pads and the rest to the 5v, Ground, TX and RX on my flight controller?
Best alternative i've find is keyringer XL. I personnaly use Digoo DG-KF30, i can see my quad on my cellphone with that. I've a TBS Core pro, i think than i can plug the GPS of DG-KF-30 on it.
I am only able to get 2 or 3 Sats but normally just 0 Sats with Betaflight. However, when I flash INAV on the FC I have 10 to 14 Sats all day? Anyone know what could be causing this? Why is the INAV config working but not Betaflight? I have it wired just like Joshua in the video.
GS Rescue doesn't use a magnetometer because magnetometers get very easily upset by the quads electronics making the positioning of the gps module very critical when using a magnetometer. This often leads to a gps module mount sticking out like a sore thumb and being very much at risk from crash damage.
The GPS receiver antenna is actually the thin foil sticker on top of the ceramic block. Before wrapping it in tape, it's a good idea to cover it in heat shrink first to protect that foil layer. Otherwise, when pealing off the tape, there's a good chance the antenna comes with. The best lessons in life are learned through pain . . .
Also, receiving performance will drop because of the tape on the patch antenna will actually lowered its resonance frequency.
@Mark 0 I've learned something today ;-)
@@EWCHEEGUAN the antenna is probably tuned a little high to allow for that , nobody uses exposed gps antennas in commercial applications
The best lessons in life are learned through pain spoiler alert YUUUUUUUUUUUUP!!
pain
About the accelerometer drift, here is an old post I made describing how I fixed it on one quad if anyone is interested:
My angle mode was broken, and I fought it for a whole year before I
finally solved the problem just using betaflight settings. Here is the
problem, I start flying the quad in angle mode, and at first it hovers
very level. Then after 30 seconds it is drifting slightly. Then after 1
minute it is drifting a lot. Then after about 2 minutes, full stick
deflection is not enough to keep it level. I would name this behavior
"Worsening Drift".
Here are the three settings that fixed it for me.
This is the default:
set acc_lpf_hz = 20
set accxy_deadband = 40
set accz_deadband = 40
This is what I changed it to:
set acc_lpf_hz = 1
set accxy_deadband = 80
set accz_deadband = 80
Now it can hover very level for the whole flight. Its perfect. I don't
fully understand why this worked. I suspect the increased accxy_deadband
is the most important setting. I really needed angle mode to work on
this quad because it is a small FlexRc Owl that I give to novices if
they want to try flying a quad.
Do you have a link for your post?
That exactly happened to me !!! and i tought my FC was bad, do you have a link to your original post, Thanks A lot !!
I've started having artificial horizon drift after upgrading from 3.5.7 to 4.1.7.
Since the settings you have mentioned are no longer present in the BF dump (still there in 3.5.7 though) I'm wondering how could I solve the issue which is exposed in details also in this RCGROUPS post: www.rcgroups.com/forums/showthread.php?3661241-Matek-F405-CTR-vs-BF-4-1-7-%28or-4-2-0%29#post45028661
I only fly air mode but this issue is basically preventing the use of RTH on my 6"...
Cheers
@@bragee Wow, i didnt notice the settings were removed. i havnt had that same issue on any quads recently.
OMG!!! finally! not lose my quad? I just bought 4 to start. Thank you sir.
Hey Joshua, I just want to thank you for your in depth coverage of Betaflight GPS Rescue as well as all the other pod casts you have done. Flight training, build, setup, and etc... I also wanted to say how impressed I am with Betaflight rescue mode. I recently finished a 7 inch build, my first Betaflight build and have been working on getting rescue working. I am on Betaflight 4.1.2 and after some adjustment with the hardware (accelerometer was upside down). Rescue mode works like a charm. I love the fact that everything is displayed in the OSD. I always know when failsafe and or rescue is enabled. The behavior I am seeing is a return just past home and the begin some kind of circling before starting to ease down. Thanks again!
I've gone on from using zero protection (not even common sense sometimes). Now I'm adding an active buzzer/beeper to every quad (whether built by me or BNF). No longer am I buying any VTX that does not use some type of smart audio. My antennas got upgraded from omni to lollipops and I finally got a decent pair of goggles. My most recent build was built with the intention of creating a waterproof 5" racer. It turned out great! Probably the fastest and definitely the lightest weight I've got. Now I am considering building one more. I plan to add GPS to my next build, bringing the evolution of my build quality to a new level! Always need to check this channel to sort out or confirm/debunk something like quad build or quad pilot related questions and scenarios! It's like the online holy bible of quad!
It is usual growing order for FPV flying :) Same here.
Wow, talk about a timely video...I lost video on my quad last weekend and immediately ordered that very GPS module from RDQ, this video will save me tons of time researching how to set it up. Very well done.
Thanks JB! Follow up video might be how to log GPS coordinates in OpenTX radio for quad recovery. That way you don't need the coordinates in the OSD.
Joshua Cannon Do you know ? And if so, please tell us 😀👍
First time ive ever flown a quad with GPS. Gotta give you Props! You had to study this to make such a comprehensive video. Thanks again JB! You Got my vote!
This video is EXACTLY what I needed man. Completed a 7" build and you make the alternative (reading documentation) way better :)
Thanks man
good topics, saved for later (when my little chimera4 arrives).
you know that you have to start your video index with 00:00 for youtube to auto-add chapter marks on the red bar? makes it even easier to jump / search thru videos...
you are one of the best things in this hobby. I just want to know why you use that sad music at the end of your videos. It sounds nice but its so sad and cold. I think its time to fresh it up!
HaHaHa, I thought I was the only one that thought that😂
I've been tested this GPS . With remarkable results. It will have ultimate sats even sumerged into 3 inches of hot glue totally covered , also inside of a long range plane made of fiberglass totally in the bottom of the plane. In short it will work extremely well in just about any environment.
I like to set my min_sats to 0. This is because sometimes with heavy cloud cover or other sky obscuration you can't get enough satellites for a 3d fix and you are grounded. With min_sats sets to zero you can choose to fly without a 3d fix if necessary. When activated without a 3d fix, gps rescue will default to angle mode and can still help for momentary failsafes.
Good advice.
0 sats, is bad idea. Clouds have almost no effect on the signal quality and the number of satellites, only the power feed. Any bad gps have cold start 2,5 minute (max), if you have more than 2,5 you have bad build quad. Use ferrite ring on gps wire. Chanel and video about gps. th-cam.com/video/dsKz01WPppk/w-d-xo.html
Alexandr Bazanov and you won’t get a fix if you need to return to home, you need at least 4 sats before you arm to get a fix so it know where to return to. If you set it to zero no point in having the gps in the first place
@@gizzmomambo I also set it to 0, if I may need GPS rescue I wait until I have at least 8 sats.
But if I fly in buildings, or hanging in a tree, the quad will arm without a problem, yes you have to think about it before you arm, but it don't prevent you from arming if you have not enough sats for GPS.
So with GPS the quad will not even arm unless it has a fix to your min_sats setting? That sounds potentially problematic in certain situations. What about turtle mode if you have no satellites?
My dad is building an 8 inch long range quad now. This couldnt have been more perfect of an idea or timing. One last christmas present for him😂😂😂
From an experienced GPS flyer. A failsafe GPS is good when you fly in open area where you have space to a ascend to predetermined altitude. It will be horrible if you fly below tree canopy and lost signal. The quad will try to shoot itself into treetops and get stuck and continue to push until all motors are burnt or battery is completely drained if you can't find it. Another scenario is one of the motors/esc fails in-flight and the quad plunges into the ground, losing signal in the process. If you didn't disarm in time, GPS failsafe wii kicks in and push all motors to full until radio signal is recovered.
Not to say GPS is bad, you just need to be caution.
GPS currently has sanity checks thst determine if the quad has crashed and shut down.
@@JoshuaBardwell So pretty much it will only be bad if you strike a kid with the first hit? This is my main concearn.. hitting people with a 600gr carbon brick or hitting people with spinning rotors :-D Give the 0,001% chance either will happen.
27:55 is a good average for your videos and well worth watching. I've been waiting for this video sense I will be completing my build hopefully tomorrow and will be playing with GPS features. Speed is all i really want, rescue is just to play with. Thanks
the hellgate is awsome.. i found my quad after 3 days ..it was still beeping.. I live in the mountains
I bet the wildlife was like.. what kind of animal is making that noise?! 😂
The best GPS module video to date.
No reason not to be integrating this into builds. It's so cheap and easy.
I have it on one already, moving forward it will be on all my 5" builds.
I think its a good start but it doesnt do enough IMO for beginners. we need some of that dji goodness for redundancy to get peoples interest back, Noise is what causes accelerators to drift.
Feel free to contribute some code.
I know noise is why ACC drift but why do some do it terribly while others have no problem whatsoever?
@@JoshuaBardwell the wires position specially if the power wires are in top of the flight controller, wires not twisted, flight controllers are not shield. Plus motors created magnetic fields too, some dji need to be degaussed in order to flight true.
Honestly, I feel like this gps-failsafe mode is more dangerous for beginners than the drop from the sky failsafe mode. Because when the quad drops from the sky, the behavior is completely predictable. It drops from the sky like a bullet and hits whatever is beneath it. The only unpredictable thing is how damaged your quad will be.
But with gps-failsafe your home-point may be a "kinda close but normally safe enough" distance (like 100m) away from a road. Now you fly across the road and 100m further gps-rescue gets activated. The quad flies home, starts descending and descends right into a car because you fail to take over because you don't know that you really need to land manually because you are just a beginner who hasn't completely understood gps-failsafe-mode.
Or if you are trying to copy Steele but you don't have his skill and are flying in a city between houses, gps-rescue gets activated - the quad ascends but not high enough and slams into a building.
I am NOT hating gps-rescue mode. I think it is really good for some people. However it is one of the features that should never be on by default and that you should really learn about before turning them on. This video was great for exactly that!
I just think varying degrees of noise from my experience more noise more drift.
This was actually one of the easiest improvements I've ever made to my quads. I do long range in the mountains (Alaska) and have been going on pure luck until now. Great video!
I grew up not far from the BC/Alaska border and I would die to be back home and be able to fly the coast mountains. Fly on brother.
I also lost video and lost my $250 quad. Couldn't find it. Spent hours looking. I won't build without GPS anymore. $15 buys a lot of peace of mind.
I lost my 200£ drone as well. It had only 1h flight time. Since that I installed loud lipo-buzzer & Bluetooth key finder for all other drones. Hope it will never happen to me again. This is an expensive hobby :(
dark carbon frame, 4 motors and props? think i found it... 200+ shipping and it;s yours
Been there. The feeling sucks
Bluetooth key finder is useless because it has maximum range of 15m in ideal conditions...
poundcake2000 $1.99 beeper. Trust me they come in handy. Make sure you get a loud one not one of the mini ones for micro drones.
Lost one quad to failsafe, and my current quad has bad signal for some reason with XM+. Will try this to save me some search and rescue missions...
Thanks for the comprehensive info JB !
With my old Cheerson CX-20 GPS quad (what essentially started me out in this hobby), upgrading the GPS unit drastically increased the number of satellites it locked onto and reduced the lock time, further to that, shielding it from the flight controller with some foil helped it further.
I wonder if the carbon plating of race/freestyle quads helps shield the GPS module from the flight controller noise.
I’m learning a ton from you videos. Thank you. It’s a lot to learn for a first time FPV pilot.
love you man as always thanks a million for this!!!
tx to rx and rx to tx i got this wrong!!
a wealth of infomation!!!!! thanks again from a drunk english man!!!
As an hardcore INAV user (mainly wings) it is kinda funny to see a betaflight expert setting up GPS and talking about OSD elements to be bulky 😅 but nice explanation. Ever wondered how that works on beta. Nice to see it in action.
Once lost my quad and gopro for a week, I chopped all the Bush down to find nothing when I looked up it was stuck in a tree Haha GPS would've been amazing
Great noise rejection. I'm impressed that the EMI from the motor doesn't swamp the GPS antenna
GPS is awesome on racing quads. Saved my ass twice already. Hopefully some of the 3D print guys come up with some better mounting solutions than the ones currently out there.
I use a 3d printed tpu adapter to put the GPS on the lipo strap, works really god.
You also can cage the position if you use bigger or smaller lips.
Use a bn-180 on 2 quads.
Well,i dont care about 30minute,even i dont understand i still watch ur videos till the end.. love from indonesia..
OH FOR GOD'S SAKE.....HA HA HA HA! I've been working on this for the last two days. That's so funny. I stole a gps module from my old Phantom 2 and began experimenting with it. I also just (literally 5 minutes ago) got an old fc running on INAV (so cool to see the similarities to Betaflight) hooked up to a gps and a scratch built fixed wing to do things like auto launch, return to home, land, loiter above you, etc. What a blast.
Bill Revenaugh wait so you did or didn’t get a DJI GPS module to work on your beta flight 5”???
If you did I’m buying one now for mine lol
@@mrmidnight32 I did
OF COURSE IM GOING TO LEARN SOMETHING!! I'm watching this fans Favorite Joshua Bardwell!!!
I also set my mode switch channel in stage 1 failsafe to angle mode (in my case 1000) , throttle to hold and 1 second to engage stage 2.
This will level the quad before GPS rescue is engaged.
GPS rescue don't know what to do if you have a failsafe when you are upside down and will drop!
Thanks to r9 flex firmware testing I know that this workaround is working :)
It's also useful if you use 3d mode.
Oh, and set "gps_ublox_use_galileo = ON"
The first time I can use this expensive European navigation system :)
could you help has this worked well is it safe could you send a screen shot of your settings ,what dose in my case 1000 mean?
@@gwizzfpv6741 oh that is what you mean :)
In modes tab you configure angle on let's say aux 1 and that the area where angle is active.
Maybe 1000-1400 pwm (1000-2000 is the range for your transmitter)
So if you have your angle mode on aux1 in the area between 1000-1400 (yellow slider to the left side)
You set in the failsafe tab for stage 1:
Throttle to hold
And aux1 to 1000-1400 maybe 1200.
This emulates your transmitter switch position in the first failsafe state.
Hopefully I could explain it a little bit understandable.
Just tested gps rescue on my Nazgul after setting it up using this video and worked flawlessly first time, than for the amazing advice as allways! 😁
Did you install an external barometer? If not is it working fine without one?
Sadly, I have no more switches to assign GPS to...
Set it to same as buzzer?
Take a Digoo DG-KF30, it's an external GPS self powered with a battery. You can see your quad on your cellphone with that. And it do Buzzer also. Without the plastic case is really tiny.
Joshua Bardwell - On failsafe kicking in the concern isn't with anti-taz (it should already be deactivated due to flight), but rather with crash recovery. GPS Rescue uses crash recovery to trigger a disarm on crashes. So if failsafe is entered and stage 1 causes the quad to tumble (usually only if people have motor_stop enabled and no airmode), the self leveling when stage 2 starts could sometimes trigger a crash detection. This has been addressed in 4.0 with a crash recovery guard time whenever a self-level mode is entered. The correct fix is to make sure that stage 1 sets things properly to not enter into free fall with motors stopped though.
Thanks for the clarification Bruce.
Joshua, excellent video Helped me. I bought the GPS by your link! Thanks from Peru 🇵🇪
cool, me too 😁🙏🙏🙏❤
Nice video. You convinced me. Will use INAV.
Thank you for taking the time to teach so many Including myself to build & fly FPV. Your the man!
Joshua Bardwell is a gift none of us deserve
Great video JB. It's cool seeing the features come back again. These are basic GPS features in the Mult Rotor FC's beginning around 2005. The original MK FC did a lot more than this...But intended for gimbaled airframes. I flew my Okto's FPV regularly without the landing gear or gimbal. We also had basic RTH features in the fixed wing FC's. I remember when the KISS came out, options like this were removed to keep things...Simple. Rotor ON Joshua!
Joshua, yet another fantastic video! You have made adding a GPS so clear! I'm doing this! Thank you!!!
But, if you are looking for autonomous flight, landings, and even take off, then try iNav. iNav is a fork of cleanflight with extra features built in. Basically like betaflight. So it can run on standard f4 and f7 and even f3 (though not recommended) flight controllers. Pretty cool. Give it a Google search.
Not that good at flying yet. Really good at losing the quad. I've been waiting for something like this. Thank you!
Awesome video, Joshua! Thanks very much for this! This video explained more than I anticipated but I've taken notes and I'm looking forward to the non-rainy days.
Nice video.
A compass gets interfered by the magnetism generated by magnetic flux coming from the FC, battery, etc wiring. Not using a compass makes RTH much more robust.
Not sure if Joshua mentioned it but beware not to engage RTH under a tree or roof, switch or failsafe.
I have a GPS on the quad since the beginning. Nice to see something resembling altitude and speed in the OSD, and transmitting the GPS coordinates through telemetry to the Taranis already proved very useful when I crashed in tall grass where you can only see the quad if you step on it.
I mounted the GPS unit slightly further up the arm towards the motor, this eliminates propstrike risk. Those patch antennas are not durable; the silver on the ceramic is very thin. I have also been using the GPS rescue mode for a couple of months now and used it successfully once when I lost video after diving behind a damp hill.
But I do have some issues with it. Sometimes the quad flips 180 degrees (that is, upside down) shortly after activation of the rescue mode. It is not 'thrust stops, quad tumbles down', but a 180 flip with the horizon level and the ground in the upper part of the goggles. Needless to say that this is usually unrecoverable :) I know that my accelerometer works fine (and it is calibrated); for precision landings I still prefer to do the last few meters in angle mode and that never let me down.
Any idea what might cause this?
Awesome as always.
Building micro quads. Even easier to lose close by.
Looking for nano size gps, battery-buzzer, barometer, etc.
Heath Nielsen buying a buzzer should be enough. Video usually doesn’t go farther than 500ft so GPS might be over kill.
Even more so when tinys are usually small area or indoor flyers.
CK_32 thanks
I’m experimenting with a bunch of different things. If you know of a good company to get really small parts that would be great.
only if it falls close. Depending on the location the surrounding noise may muffle the buzzer sound.
Hi Joshua, According to the RaceDayQuads page, Vcc must be 3V3, acceptable range 2V7 to 3V6. You state 5V at 6:26. That will, apparently lead to failure after initially appearing to work OK.
That is correct. I have noted it here in the comments and it's noted on the RDQ product page. There isn't any way to annotate the video, unfortunately, as YT removed that function.
When wiring to JBF4 controller, is it possible to solder the black cable to the pad named "G" to the left of BUZZ pads instead of soldering it to the ESC- pad? Should be the same or am I wrong? Picture is at 6:43
Thanks!
Joshua how you feel now is how I felt a few months ago when i was like hey Joshua why dont you make a video on gps rescue ;).. It works best with a barometer how ever u do not need one, Rssi signal lost it enables gps rescue automatically :) This setting is the best part about gps rescue :) Be careful with the rssi signal recovery it enabling at close range or close to objects is a concern.
Anything to make our hobby safer! Nice Unit RDQ!
I forgot how good your video tutorials are, I kinda stopped watching because I’ve built a few quads and was happy with what I knew 😂. 👍
You're the best Joshua, Thanks again as always!!
Always there when we need ya..
I got mad at you once and swore I'd never watch your videos again. But damn it... you're one of the few who knows what they are talking about. Thanks for the help...
Thanks for posting this Joshua! Should help lots of pilots get started with GPS Rescue.
Thank you soooo much for all the super informational videos. I really do learn something new everytime I watch your videos
Somewhere prominent in this discussion it should be made clear that the DTH is not adjustable in versions of Betaflight lower than 4, and that the consequences of switching to RTH is to drop from the sky if activated closer than min distance.
On my quad GPS works only using UART1, but now I don't have any video in the goggles, not even a gray background with OSD data on it. The VTX seems to be functional, is displaying the channel info A7. Did I disabled the video transmitter from Betaflight?? What shall I do? Thanks!
It's hard to imagine how installing the GPS could reset your vTX. If you see black screen and not static, then probably you are on the right channel. It sounds like the vTX may not be getting image from the FC.
In the end the problem was elsewhere, the antenna cable's base was touching a component on the VTX, almost a short circuit. Now it's working! Thanks!
If you take off from a large open field, it will do a fairly good job of "landing", with a very delayed motor shutoff.
Thank you Joshua for all this.!! Your tutorials are valuable ...
Great video! Thanks for that! It helped me a lot! Best regards from Germany! 👍😄
I like your videos on FPV very much. They always give you an excellent overview.
The accelerometer drift is due to temperature changes, when it flight for few time, it's cool down and return a bit to normal, same for heat and cold. I experimented this with kakute f7 ;)
I have not been excited like this long time , may since my first APM wing that actually did work autonomously and returned home ! Just "converted" to GPS one of my quads. It got GPS lock on the "bench" inside my apartment! I have HGLRC Titan Plus F460 stack in it and seems to be not from the "drifty" ones. After enabling accelerometer, It does spins around Yaw witch I found strange but maybe normal considering that there is no compass on board...fingers crossed!
Learned a new reason for... Won’t Arm? GPS position and satellites have to resolve, before quad will arm. Also, using DJI and you can’t see the warning message, but CLI gave me the clue.
Thanks! Very informative Josh. Appreciate it.
SUPER DUPER COOL! Love the info! Thanks! WAYYY cheaper and easier than I would've thought!
From what it sounds like GPS rescue mode is like most medicine, if you take some it will most likely help you but you also have a list of adverse side effects that that could possibly happen at random that will make you worse off then you would've been before you even took it.
You're the damn best FPV youtuber :D Yeah now the GPS Rescue is on the GUI of BF as you predicted :)
Thanks for your help as usual. I couldn't even start flying without your videos.
Thanks Joshua 50m is great, that will save a lot of quads.
I need to learn how to setup baro mode like with the brain redux. If you ever have time for that. Love the content and always want more! Thanks big J!
I have those on both my smooth operators and the place to display the coordinates is the TX screen I also log Max speed min RSSI ect. I have found flying with home pointer lets me fly in really dense woods, It's good fun flying over the canopy diving in completely lost and follow the pointer and if it goes wrong I can put the coordinates into google maps I my phone.
I must say, Matek gps unit performed much better than the others I tried!
thanks joshua you are very precise in the explanation 😊👍
Great explanation like always, Joshua!
Your full of knowledge Josh. Thanks buddy.
Dang! I could not care less about those cheap JPS units... until I watched this and hear I am buying half a dozen, thank you JB! Cool T-shirt bytheway :)
i appreciate the work you put into these videos
wow, this is one of the best video ... I'm going to install an gps next week! Thanks.
when using the GPS, should we activate the Accelerometer = ON, since there will be angle to be knowned by GPS ?
Yes, absolutely. You need the accelerometer for this to work.
@@JoshuaBardwell Hi...thanks for your reply...Since I am using acro with accel OFF, is it okay tu turn accelerometer ON? Does it effected with acro mode ? Thaks again Sir
I've been going further with my cinepro 4k lately. I converted it to 3" and added R9mm. VTx 25mw is already going over half a mile. Thinking if I go any further I should add a GPS. My buzzer isn't even loud. But not sure where to mount. Guess I can put on a arm . I run big batteries too film longer so not much room up top. Thought battery strap but after you said could break idk
I’m gonna have to do this project. Seems super handy.
Yes yes I do part 1 part 3 where the F is part 2 and why is there a part 5 but wait it's not even about the same subject ... thanks JB you da MAN!
Just had a thought.......it would be great if betaflight was able to detect the bitrate of the dji system so that for example if the bit rate hits 0 mbps for more than a pre set time then the gps failsafe would kick in.
So a failsafe for Rx loss and also video loss!
Awesome video as always. Thank you Sir👍👍
I don't have the SDA and SCL pads on my flight controller, but I do have those pads on my Crossfire Nano. I assume I can put the SDA and SCL wires from the BN-880 to the Crossfire's SDA and SCL pads and the rest to the 5v, Ground, TX and RX on my flight controller?
I owe you so much.
Prefect timing! Just got my GPS in the mail.
Best alternative i've find is keyringer XL. I personnaly use Digoo DG-KF30, i can see my quad on my cellphone with that. I've a TBS Core pro, i think than i can plug the GPS of DG-KF-30 on it.
I am only able to get 2 or 3 Sats but normally just 0 Sats with Betaflight. However, when I flash INAV on the FC I have 10 to 14 Sats all day? Anyone know what could be causing this? Why is the INAV config working but not Betaflight? I have it wired just like Joshua in the video.
Awesome video 👌
GS Rescue doesn't use a magnetometer because magnetometers get very easily upset by the quads electronics making the positioning of the gps module very critical when using a magnetometer.
This often leads to a gps module mount sticking out like a sore thumb and being very much at risk from crash damage.
Thank you JB. Excellent as always.
The racedays one is actually a bn220 with a diffetent sticker. I reccomend buying the bn220 directly from banggood since its less than half the price.
Thank you very much, Josh. Excellent GPS class.
Excellent video. So clear and informative.
Thank you for what you do and who you are . You made my FPV
Amazing video! Thank you. I’m a rubbish pilot I need all the help I can get. Any word on altitude hold? Or should I stick with my mini?