ExpressLRS V3.3: Now supports SBUS! (ELRS)
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- Опубликовано: 11 янв 2025
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To see examples of both ways that ExpressLRS PWM recievers use to enable SBUS or CRSF outputs, check out the video on it ruclips.net/video/REdKNOwgNN8/видео.html
Many thanks, answered my confusion on buying a radiomaster pocket with ELRS module+ER6 PWM receiver. Pretty cool can configure outputs on the receiver!
I haven't gone to ers for not having sbus for stabilizers, plane flyer , Got to re-think it now, thanks you Lee !
Me too
Great news! Thanks, Lee! 😊
Stay safe there with your family! 🖖😊
It's nice to have for all the old stuff.
I haven't had much luck though, tried converting an old Vortex 285 to ELRS for a friend. A Sbus to CPPM adapter are needed for those. So flashed 3.3 to the receiver tried and got a Sbus signal on my battery checker, but when connecting to the CPPM adapter nothing happened.
Ended up having to use CRSF and have a Matek CRSF to Sbus converter in-between the receiver and CPPM adapter for it to work.
Got it up in the air with ELRS in the end, but had hoped to not need the Matek board in-between.
Never figured out why this wouldn't work, but he's happy in the end and the end result is still smaller than he's old Duplex receiver.
@@WartornNOR Yes, I did try both.
Sounds like an issue with the SBUS setup or something on the converter. Log a problem with the project.. Best of luck!
Got me a superp on the way from china, it has been the longest wait time ever and ive never been so excited waiting for something
Awesome 👌 content. It's a learning channel.
Thank you for this video. I just reconfigured my radiomaster receiver per instructions and pixhawk 6c/px4 fc began to receive commands per Qground control. I was trying to customize PX4 firmware to make work, but not so easy task for a beginner. Next need to figure out how to get return telemetry to transmitter. A video on this would be super.
Use CRSF as the protocol to the PixHawk and the telemetry will come back... I have a video on how to setup Ardupilot for CRSF. Best of luck.
_"Insert Xzibit meme"_
OK!
Now my ELRS rigs all have 3-wheel motion, Neons, and at least 2 Wings. Tupac discographies loaded on SD cards, sorry BlackBox. Oh, and my FPV camera is mounted on a popcorn maker, for some reason.
But on the serious, I have a bunch of Omnibus F4 equipped planes, currently with FrSky Rx's. This will invigorate the fleet, and I can stop being nervous about range and Freq Tuning FrSky Rx's using a Multi-Protocol module
I replaced the rx with the er8gv which works perfectly on its own. taking the 4-wire plug directly from the rx and inserting them into the sparrow2 using the crsf or sbus protocol does not make the connection (express 3.3.1)grazie
Nice! Finally can use it as sbus 🎉
My ER8GV wont let me pick any channel for serial tx. figured it out - dedicated port only. all good & working now.
See ruclips.net/video/REdKNOwgNN8/видео.html
@@Painless360 Thank you Sir :-)
I found Chrome did not open the web page, Safari did. Not sure why, but definitely browser specific.
I'm pretty new to RC flight and even newer to ELRS. I've got a TX16S 4-in-1 version and a BetaFPV micro ELRS module. Watching videos I know that CRSF is the default for ELRS, but when I look at the other options to choose on the BetaFPV module, I can see SBUS, DSM, PWM and I can even see Multi as an option. I've tried looking around online, but I can't seem to find anything about these other protocols.
manual.edgetx.org/color-radios/model-settings/model-setup/internal-external-rf
Where you almost diving in turkey at any chance? Greetings
I have a Radiomaster ER6G that I was hoping to use in a glider to replace a FRSky system. My setup is three PWM channels in the Fus and S-Bus to the wing where I breakout to four PWM servos. Whilst I can replicate this setup with the ER6G I find that the Fail Safe does not operate on the S-Bus channels to the wing - an important safety feature for a glider. Is that a “feature” or am I missing something in the setup.
I'd try with the latest firmware are there are notes about this in the GitHub - github.com/ExpressLRS/ExpressLRS/issues/2175
I have been doing all of this since3.1 came out at least 2 months ago?
Youre the best ❤
Hi Lee, thank you for this video - Great news. I have a speedybee FC. I am going to use a ELRS now with SBUS. I have the normal controls for the AtomRC Swordfish (4 channels just for the surfaces), but i use switches for alt hold, arm, RTH and auto trim, do I need a channel for all of these functions? So I was thinking of getting a 8ch ELRS, but if a 6 will do then great.
SBUS has more than 6 channels so if you use SBUS as the protocol you should have plenty for what you're trying to do... Best of luck
Pretty Cool 😎
La radiomaster pocket tiene que ser multiprotocolo o elrs actualizada a 3.3?
Tous les détails sur le site Web - www.radiomasterrc.com/products/pocket-radio-controller-m2 - disponible en ELRS et CC2500. Il sera mis à jour vers ELRS 3.3 au fur et à mesure que Radiomaster travaille en étroite collaboration avec le projet. Une des raisons pour lesquelles je les aime.
Good morning, I followed your explanation preciselyI have the same RX, I took the bus from pin 2 and inserted it on Sparrow 2 in the right position. The TX is the pocket and the commands come out of the RX but when I increase the motor, the servo elevator also moves What did I miss at the same time I have no signals on the rc toolkit Thanks, I hope for your help
That is normal on some stabilisers. I'd check the manual for the one you are using.. Best of luck.
Great video. Thanks. Does this mean I can connect to a Matek FC via SBUS to leave the UARTS free for GPS and HDZero (F411 Wing) thanks
Yes Happy flying
Complete newbie here, if you can use pins for serial does that mean you could instal a 3rd party GPS that way. As still no GPS for it as far as I can see on the RadioMaster site?
The GPS will have to be setup for the port so not sure if any old GPS would work... Happy flying
Hi. Is SBUS supported by the RP1/RP2 type receivers? All examples use PWM-type receivers. Thanks again for your great work.
Check if the option appears after you update the ones you have... Best of luck
have a question im looking to use a cam tilt servo on my 7" inav quad build on a speedybee f722v3 fc with elrs but after a little digging seems people have struggled to get servos working with that speedybee fc ,either just from the available hardware or inav configuration, cant remember exactly but im under the understanding that i could use one of these type pwm receivers alongside my fc to control the servo directly just not entirely sure what that entails and what to buy exactly but cant find much info on many people doing that,
any chance you or anyone could point me in the right direction?
Can you not use Betaflight resource remapping for something like the unused motor outputs?
Hi, Geprc Elrs dual diversity receiver connect with SBUS protocol to FC, its giving only 10 sensor telemetry, can I get telemetry with if receiver Rx connection to FC telemetry TX ? Is this possible?
If you want telemetry from the flight controller, then use CRSF not SBUS... Best of luck
Is it possible to show us SBUS connected to one of those old flight controllers? Namely the ZOHD Kopilot as im having some difficulty connecting the ER8GV to my Kopilot via Sbus. The pwm connection works but not sbus.
Thanks in advance.
What specific issues?
Can you help me with binding of EPW6 To radiomaster tx16s with crossfire axis thor via ELRS LUA
Please see my video on binding... Best of luck!
Can you get s.port telemetry with this ?
Sadly not. Frsky seem to be very litigious about that.. Happy flying
Is this Futuba SBUS or FrSky inverted SBUS?
5:15 shows it, both is possible
It is even more than that from this option now.. See ruclips.net/video/REdKNOwgNN8/видео.html
Another great video, Lee. I Just got a new ER8 and flashed it to 3.3.1. For some reason I don't get the Serial TX option on any channel for SBUS? I even tried flashing to the GIT branch Master firmware and and flashing back to 3.3.0 and still no SerialTX on any channel. Am I missing something? Thanks!
@Painless360 ...Hey Lee....just an update to this thread...I got SBUS working on the ER8 receiver! It outputs SBUS through the UART port on the end of the receiver! Hope this helps other viewers.
ruclips.net/video/REdKNOwgNN8/видео.html
@mironuw6917 ..on the opposite end from the servo connections, there is a port underneath the little red plug that the antennas come out of on the ER6 and ER8. That is where your SBUS signal comes from. There is an adapter in the receiver box that has that UART port plug on one end and a servo connector on the other end that you can use for SBUS. You still have to log into the receiver and tell it to output SBUS. Hope this helps.
So can you use the Sbus on the FC with Elrs reciever as the main control of the model? I was just thinking to use the new recievers to update my old fcs from d16 to elrs. Do you need any specific version of Betaflight to be able to run this? Thank you for this video, it was very interesting.
Any BF version should be happy as the change is in the setting of the ELRS Rx, nothing to do with the FC setup (apart from making it SBUS!)
I have the RadioMaster ER4 receiver and changed the settings like in your video but I get chatter when it powers on. I have a RadioMaster ERLS Pocket also but I don't have a screen you are showing around :34 timeframe. Is there something I need to do on the Pocket?
What do you mean by chatter?
@@Painless360 It's jitter I should say where the servos are twitching constantly.
I'd try different PWM speeds.... Best of luck
I have a tx16s wich is 16 channels
I can only find receivers up to 8 channels
So I need 8 more, so I need a Decoder right? But I
can't find a Frsky Servo Channel Changer anywhere
online! Is there any other way to get more
channels?
Or bind two receivers at the same time - see my video on how to do that..
@Painless360 Broo thank you! I spent over 3h trying to work this out and you can actually 2 rcs connected and running at the same time thank you for the idea!!! God bless you and your family!
Can a phone connect to the Receiver and configure it if you do not have access to a laptop?
I'd guess so. Let me know if it works!
Hi, I have been enjoying your videos over the last year as I am getting into whoop flying. Do you have any videos or tutorials on how to flash CrazyF405 HD AIO. I am using the latest Betaflight configurator 10.9, but after trying to swap to an analog camera turtle v2. This ports reset to blank, but originally UART1 MSP should be enabled with VTX(MSP+Displayport). I am tearing my hair out, so appreciate any advice you can give.
If the port tab resets then that is an indication that the configuration isn't supported. Try adding the port settings one by one of see the one that causes it all ot be reset... Best of luck
@@Painless360 Thanks for the suggestion. But the experience I get, is that I can no longer connect to betaflight with my FC using USB at all. I think it is similar to the issue where you can mistakenly disable USB VCP which then renders the USB port on the FC undetectable. Good thing is that the Serial UART2 built in ELRS still works, as the WIFI signal switches on shortly after the USB of FC is connected to computer. Some suggest trying to use ST-Link V2 to flash the STM32 chip with the correct 405 betaflightf4 firmware. So I have ordered one to try today. I did try using the betafpv ELRS recovery dongle to connect G, 5v, rx6, tx6 and try to connect to BF, but although the usb port shows up as cu/SLAB/CP2102/210X... it fails to connect when trying to update firmware in BF, so unsure if the ELRS recovery dongle is the correct one to use for connecting that way. It is a real shame as the CrazyF405 HD AIO on the Mobula8 you reviewed is a great whoop and flies beautifully. This issue makes me think twice about buying that FC again. I think someone on a forum or video mentioned your channel and named you had a fix or workaround for a similar problem which lead me to asking you here. No giving up yet, but still tearing my hair out.
That could be a few things. I'd try another USB cable and disconnect all of the attached devices on the FC. Best of luck!
@@Painless360 Thank you for the tips. The problem is now solved. After having tried soldering all available rx/tx and trying to connect using ftdi usb. I got a response only after 6 hours directly from HappyModel support in China. I believe the information is missing from most websites that sell the CrazyF405 HD AIO used in the Mobula8 HD as the wiring diagram doesn't include details of STM32F405 boot solder pins that need to be shorted for DFU mode. HappyModel emailed me a phot highlighting boot pins to enable DFU mode to reflash latest firmware. I just wanted to include this, as although HappyModel aren't seen as the highest quality fpv component producer, they have been around for a very long time and my experience of their Mobula series of whoops is just 100% reliable cost friendly. Plus their customer after sales service is extremely efficient.
Nice video, what about Ch 5 when running sbus? are there only 2 positions still. Asking because I'm helping a friend with an OMPHobby ZMO VTOL, not Pro. Can I use the DJI RS Pro?
Sadly this is still one of things that you need to work around with ELRS. You can remap the MODE channel in Ardupilot and setup the CH5 value to go high when you ARM the model as normal.. Best of luck!
@@Painless360 Thanks for your answers, but is not only the Pro version that can be connected to Ardupilot, this is not Pro ?
If you can't change the mode channel in Ardupilot then that won't work... Happy flying
@WartornNOR have you know of a way to re-upload the Ardupilot setup into the non Pro version of the OMPHobby ZMO VTOL? I'd be very interested if you've figured it out. I have a few things I'd like to tweak on the original model...
Surely that'll change only the physical pin used on the reciever to output SBUS, not the channel order in the SBUS signal itself?
Thx
I don't know what I am doing wrong. I have an ER8GV and flashed with 3.3.1. ver. when I enter in wifi mode and go to MODEL and CH2 I can't see Sbus option. What do you thing is going wrong? Thans in advance
What troubleshooting have you already done? You also need to select that you want a serial protocol..
@@Painless360 I have flashed ER8GV with 3.3.1 ver but entering with wifi in the RX and selecting CH2 doesn't appears SBUS option. I have selected SBUS protocol too, but nothing appears. Onli 50HZ to ON/OFF options in ch2. Where I must select serial protocol ? Thanks
How odd, next time I have this out I'll check..
@@Painless360 thanks. I'm crazzy with this issue in my ER8GV
How did you update yours?
sbus2 support any time soon?
Check out the project Github for the latest... Happy flying!
Great regards
OH SNAPPPPP
Nice!!!
Great information as usual. So does this mean I can throw a EP2 into a Goosky using the sbus port.? Just ordered the S1 in hot pink 🩷
Not really. That pesky Ch5 only being high or low could be a headache. Until ExpressLRS drops that daft need for CH5 to be used in that way (or allow it to be missed in the SBUS data) it's an issue for systems like this...