FRSKY FPORT HOW TO | SBUS and SmartPort on One Wire

[@marinehm]

JB; as you probably have seen. I had struggled this entire weekend trying to get the receiver configured. UGH! Even went out and purchased another RX thinking mine was AFU! This video solved my issue. Thank you so much! Now, I can call PriroFlipRC and tell them to cancel my order. Nah! I'll have a receiver to give to someone when they need one. I was given a whole bunch of free GOOD advice when I started. It's the least I can do to help another individual just starting out.

[@sukhrajhothi1542]

worked! had to try each serial Rx for all UART ports until i got live receiver values in betaflight !

[@shaiss1]

thx for the video. for anyone that this doesn't work. if you dont have a telem/sp labled pad and using a generic uart, make sure you're on the TX pad and not RX. If you are using an rxsr and a generic tx pad you will need to use the uninverted p pad on the rxsr to get telemetry to work

[@nevinleiby]

It's still not working for me on HGLRC XJB F428. I've tried all 4 combinations for inverted/half duplex as well as inverted and un-inverted hacks...No change. Not receiving any stick input on BF 3.3.2

[@coetele]

Nevin, i had the same problem, you have to disable serial on the sbus ,

[@pippifpv]

Holy moly, opentx looks so complicated, each time you are trying to setup anything. So Many menues and setup options

[@DopeJohnny]

I guess that's the price for a massive, powerful, feature loaded piece of software that can run on even very simple (and cheap) electronics and can be controlled by just 6 buttons. When I got my Taranis I tried to not change anything that I had no clue of... that worked well for me.

[@gabefpv3624]

Quick tip I love: long press on page button moves backward in the menus. So telemetry screen is easily accessible after short pressing menu then long pressing page. :)

[@shinuza]

Also, be careful not to accidentally enable PPM when first binding your receiver. Otherwise, you gonna have a bad time. On the R-XSR if your inputs do nothing in the receiver tab, check that you a blue led and a green led, both solid.

[@braydensnedigar2352]

Dude, THANK YOU, have been troubleshooting for the past two hours trying to get my receiver bars to do something in Betaflight, working great now!

[@BMWSUPERCOOL]

Is that cppm on the receiver? Mines off and I'm still not getting stuck inputs in BF

[@leznets91]

YES the intro is back, I'm so happy.

[@petehelme7714]

Hmm, this is cool. Joshua, please keep these great videos coming! I just did added SmartPort capability on a Flycolor S-Tower (F3), using Pin 6 of the PWM (10-Pin) connector to a FrSky XSR. Supposedly on this FC, if you use the supplied SmartPort pad, it's shared with the USB bus and complications ensue using them simultaneously, so better to use a free TX pin and SoftSerial. I'll have to try this F.Port mod soon, but since everything is working now, I'll wait. ;)

[@fastfred529]

Have never got telemetry to work on a F4 with a FrSky XRS. Have tried on a CLRacing F4S and RTFQ Freestyle F4. Considering changing this Quad to a Omnibus F3 which I have working a few older quads. Will try this f port first, thanks for this video.

[@marinehm]

Hahaha. Subjected to watching videos while I'm saving for my new build. Yes, I lost my 1st one. I think someone snagged it faster than I could get over to where it went down. But in my setup, I was having trouble with the telemetry. It kinda worked. This explains what I did wrong and how to set it up correctly. Thanks JB! Hense "FPV knowitall". Title well earned.

[@eee.1013]

Bought some R-XSR last week, this "HOW TO" video is on point ! :D

[@fastfred529]

set serialrx_halfduplex = OFF got rx to work. set tlm_inverted = OFF Set tlm_halfduplex = OFF got telemetry to work. Thanks JB

[@JoshuaBardwell]

Glad you got it working!

[@kosti116]

Hi Joshua. First of all, I am very grateful for all the work you put into your videos. I gained a lot of useful knowledge from them! I have a rather unusual problem. My fc is AIRB/OMNIBUSF4SD(STM32F405) BF version 4.3.2 (it doesn't work at all on other newer BF versions) Radio X9D+ se, soft RF module XJT_ACCST_2.1.0_FCC FrSky XSR ACCST receiver (X4RXSR_ACCST_2.1.0_Fport_FCC) s.port not modified, connected to FC on a dedicated s.Bus pad. The controls in the receiver tab work (sliders move) but telemetry does not work. As for CLI, I checked all configurations. The set serialrx_inverted option doesn't change anything in my case. The set serialrx_halfduplex option must be set to OFF for the control to work. I'm at a loss because before updating to the latest BF version, everything worked fine, I had all the telemetry (it worked normally on software 3.2.2). I will be grateful for any help :] Regards !

[@Athiril]

Finally got it working on a r-xsr and omnibus f4 v3... solder the p tab on the r-xsr and connect it to header rx1 for uart1

[@mark1944]

right i have resolved the problem. sorry for the confusion but hopfully it might help somone. it looks like frsky had the latest firmware package as 191112 and had fport and sbus versions inside as usual but like i said the 191112 fport version would not work with fport in betaflight. as of today 29/11/19 the same 191112 package says (191128 Fport) in the description and contains 191112 for sbus and 191128 for Fport so it looks like some kind of screwup form frsky. 191128 is working fine following this video. many thanks

[@reckonsin_fpv]

Thank you Joshua from the past. This video saved me a lot of time.

[@WendysNuts4u]

can you please review and setup the frsky R9 receiver with the R9M module and compare that system to the crossfire one? thanks!

[@JoshuaBardwell]

Yeah I have it on order.

[@WendysNuts4u]

Joshua Bardwell sweet, thanks! being that everyone seems to be sold on the crossfire system, I think it would make a great video.

[@RADERFPV]

droneXcursion I'd love to see this as well, awesome.

[@ChakoFPV]

+1 to this... specially with the new Frsky X lite and R9M lite module coming out!

[@mr-abdullahalshmmri2873]

droneXcursion +1👆 how setup telemetry r9 pleas

[@Project314]

I'm trying to use a Jumper R8II controller (which is like the R8 but has a duplex pin for RX/TX, plus Sbus RX port) to make LUA telemetry work on my TX16s.

[@d.8362]

Thanks Josh, was stuck for a while with a R-SXR on a babyhawk r pro. FC wasn't like anything in the manual and (Mini Magnum F4 v2 lite? ) I couldn't find any open pads for smartport, but fport is working on sbus wire. Awesome videos!! Thanks again.

[@RockTouching]

A bit off-topic here but damn look at those perfect solder joints, haha

[@JoshuaBardwell]

Credit where credit is due: Armattan built this quad.

[@AerialImagery]

While adequate, they are far from perfect. The green wire is about the only one that does not have excessive solder.

[@HDgodfrey]

So cool Josh! I need one extra uart and run an x4r. I Can't wait to get home and give this a try. I can't say thanks enough. Going to start using your links for all my shopping! Thanks so much!

[@vedasticks]

got my r9mm working on s port on an omnibus f4 FC had to use the cli commands. wonderfail range had failsafe at well under 100m

[@harrygibson2910]

hey can you make sure you are one of the first to review the ev200 eachine goggles when they come out, they actually don't look half bad

[@JoshuaBardwell]

I'm seldom the first to review these things but I try to be as thorough as possible. My money would be on Stew to get the first video out as he seems to have connections to get product on the day of release and he is very quick to produce content about it.

[@harrygibson2910]

thanks man

[@ntc7335]

There is no Stickmovement on my Armattan Quad. Same Hardware&Wiring in the video (FC: CL FRacing F4S) What I did: 1) I have flashed the FrSky R-XSR with the newest Firmware: R-XSR_FPORT_LBT_190311.frk Since I use an European TaranisQX7 i changed the receiver firmware to LBT and in addition with FPort! 2) I flashed my TaranisQX7 with the newst firmware: opentx-x7-noheli-lua-luac-en-2.2.3.bin 3) I updated the newst Flightcontroller Firmware: CL_2.5.0_CLRACINGF4.hex I also made the changes needed for the F4 and FPort. set serialrx_provider = FPORT set serialrx_halfduplex = OFF set serialrx_inverted = ON -> Now the binding process went well. I see the green LED on the R-XSR and I also get the telemetry information on my transmitter. YUHU! BUT: I don’t see any stick movement in cleanflight! And i cant figure out what’s the problem. Did I screw up with the new firmware? Or is Fport not the right thing for this quad? Would be awesome if I get a little help from you guys… I hope it’s not a big thing. Can you help?

[@JoshuaBardwell]

I would double check the wiring. Yellow Smartport wire to T pad on the FC right?

[@ntc7335]

@@JoshuaBardwell hey Josh. Thanks for the answer! Actually Armattan Support had the right clou. My R-XSR was not using the SBUS protocol for whatever reasons. So I had to push and hold the bind-Button on the RX for 30sec until the blue LED indicates it. I went back to SBUS and Smartport for now anyways. Now everyhting works fine. I'm diving in this fpv-hobby with an incredible pace and deepness. And you are absolutely the best, fun and most waterproof dive instructor I can imagine! 👍 I will follow up! Thank you

[@testpipedh22a]

spektrum did it like a year ago ;) glad to see the frsky guys catch up :) thinking of getting a qx7 to go alongside my dx8 gen 2 so I can get some crsf action going :D

[@christopherkaldenberg6800]

Great video. This is super exciting news about Fport. I'll be trying this tonight. Fingers-crossed.

[@Richocet83]

Thanks for this video!! I feel like you made it just for me after our conversation about freeing UARTs for GPS. Regardless, thanks for the great info JB!!!

[@hateeternalmaver]

When I got my X4RSB I was looking into using Fport because I have an F4 but I found the uninvert hack less of a hassle than flashing new firmware to the receiver.

[@brownster4865]

Worked great except the PWM page on Lua Script. It was recently fixed with receiver firmware: 180827 My config below. FC: Kakute F4v2 betaflight 3.5.1 RX: R-XSR FPORT Firmware: 180827 TX: FrSky Taranis Q X7S (with OpenTx 2.2.2)

[@Gosuminer]

I spent several days trying to get telemetry to work on a Matek F405-STD natively without using softserial. Among my attempts was switching to FPort and I did get control input to work but no telemetry, with all combinations of BF flags and uninvert hack / no hack with several R-XSR receivers. As far as I know the F405 does not have a bidrectionally uninverted (or inverted? It's confusing as duck) UART which is required to fully get FPort to work. Has anyone had success getting telemetry to work on an F405 without using softserial, FPort or not? If so, how? Please no theoretical suggestions since I am pretty sure I tried all of them several times.

[@lo4wai]

github.com/iNavFlight/inav/issues/3194 Due to resistors exists in the F405-STD uart ports, you can either use softserial with normal inverted smart port output or use the uninverted pad with a wire to bypass (short) the resistor.

[@Azim196]

Trying the 4 possible configurations in cli finally fixed my issue with my newest build. Thank you =]

[@christera2686]

Anthony Jones before you tried the 4 possible cli config, was there no reactions in the reciever tab? Maybe I should try this. I gave up the whole thing eventually 🙄

[@Azim196]

@@christera2686 I believe there were no reactions, hope it works

[@elis51501]

I like the display page Vfas setting I am going to set that up, thanks Josh

[@Super73VW]

Hey Joshua, I am using your RDQ F4-AIO, and the FrSky R-XSR. I have quadruple check my wiring, and it seems correct for the setup. In Betaflight I have set UART3 with Serial RX on, and UART 1 serial RX disabled. Receiver configuration is set as serial based and FrSky FPort. My XD9+ and the receiver are bound as indicated by the solid green light. On my transmitter my channels are set as AETR, and in the outputs they all put out the correct uS range when going through the throws. My problem is on the Betaflight screen when on and connected, my channels do not move. All channels are at 1500uS except throttle, Aux 13, and Aux 14. I am just coming over to FrSky from Spektrum, so there are quite a few new features to me. I also went through the New Taranis+ setup video to see of I was missing something on my initial radio setup. Edit: Using Betaflight 3.3.2, and configurator 10.2.0

[@mark1944]

I meant the RXSR-FPORT_FCC_191128.frk firmware for Fport doesnt work with betaflight but R-XSR_FPORT_FCC_190311.frk does for some reason

[@renedevries143]

Great info. I got my r xsr hooked up to my kakute F7 (f port) and it works awesome. I did remove the sbus from the r xsr, Problem is the barometer on the F7 is now not recognized in betaflight and not showing. Any thought how to recover the baro?

[@KuriOSS]

Thx. for sharing great inf. but i just wanna know does it make the latency slower than before? If it is not, this is pretty much cool!

[@TheLightningStalker]

It's supposedly a little slower than S.Bus but most people probably won't notice.

[@jasonshiner2006]

Whats up bardwell? I need some help with getting my qx7 to work with my r-xsr. Im using the pyro f4 osd fc and flashed the firmware to the r-xsr for fport and lua scripts. Im bound to the rx and appear to get telemetry but dont get any stick movement in bf. I tried the tele pad and tx4 on the fc and neither worked. I've also tried the serialrx permutations in the cli. I'm new to taranis and not getting any help from my fb groups that I'm a member of. Please help me! Thanks bud

[@Project314]

Can I do this same thing using Mission Planner? I can't get betaflight connected to my PX4.

[@dronedoutrc5970]

Canb we get rssi to osd with f.port?

[@robbinkoot2154]

Can't get the Lua working on fport. I'm also only got rssi and rxbt

[@JoshuaBardwell]

Go to telemetry screen in the Taranis and "discover new sensors".

[@robbinkoot2154]

@@JoshuaBardwell I already did that. But I use fport for a reason. The reason is that the normal sbus doesn't work anymore. Also I wired the fport to the SBus pad on my F4 so that could be the problem

[@Smiercius]

@@JoshuaBardwell tryed that , but no new sensors shows up :/

[@philippeglur]

I wonder if Joshua or anybody else can help. My new Archer GR8 receiver does not allow me to plug a sensor using the standard servo plug anymore. I had it working with the pre-ACCESS RX8R Pro as the Smart Port plug was for standard servo plugs. Do I have to use that new 4-pins F.Port connection now? If so, I guess I need to change the plug on the sensor side. Just a bit unsure, as it is, as usual, difficult to get clear info from FrSky. Any help is highly appreciated.

[@constantelev8tion1]

On the New Mamba F411 AIO 25A ESC, they have both, RC tx pad and Inverted pad(s.port) on UART 1. Do I have to desolder the RC signal for f port to work?

[@Ninjafluff]

So are you using F Port on all of your personal models? I ask as I'd imagine that it essentially halves your input signals now. Is that right? Or am I looking at it wrong?

[@imothy]

I have an x-lite running opentx 2.2.4 and a crazybee F4 board trying to add an R-XSR. I can bind and fly the quad using sbus with the rxsr firmware 191112, but when I flash the fport firmware 191128 I can bind but I can't get activity in the receivers tab. I'm using the "inverted" pad on the R-XSR and set serial inverted off as well as half duplex on. Telemetry is turned on in betaflight as well as fport is selected as the protocol. Not sure if i'm missing something...

[@HausJan]

Thanks for your great content. I have the problem, that even if set up correctly, at first both reciever values AND telemetry values work just fine. After some seconds, Reciever still reacts to stick inputs, but the telemetry (only the stock values RSSI etc. keep refreshing) loses connection. In Betaflight, however, RSSI is still picked up, telling me, taht at least the communication RSXR-->FC is still active. When i repower the FC, the same thing will happen over and over. Anyone else had this WEIRD behavior?

[@tomvanvelthoven3368]

Hi JB, at 3m04s, you still have 2 wires connected, the sbus and the telemetry (yellow and green). Isn't the point of Fport that you only need 1? Like here oscarliang.com/ctt/uploads/2017/12/kakute-f7-flight-controller-fc-r9mm-mini-rx-receiver-wiring-connection-smartport-fport-1024x503.jpg

[@TEA-mg5eb]

yeah, but if you were using s.port + sbus in the past you can just leave the wires because if the r-xsr is set to fport it wont use them, saves you time from unsoldering + cutting the old sbus wire

[@oligarcia1]

Hey Bud! Thank you for all the videos you are always such a great help. Unfortunately I have not been able to bind my RXSR to my QX7. I've updated the firmware on my transmitter and have tried flashing almost all of the firmware updates for RXSR. I've tried all the ACCESS updates because thats what my transmitter asks for. The closest Ive gotten to binding is up to the register point but then it won't bind. This is my second receiver because i busted the first one which was a diatone msr. PLEASE HELP. Thank you very much!

[@-xk140-2]

Dear Joshua, thanks for all you do for us. I finally succeeded to wire the f.port. I still have a question. As I use the tele pad for fport, I wanted to use the the sbus pad to wire a gps beitian bn220. For doing this a need a free rx tx. I currently use tx4 for my tramp, rx6 for esc telemetry. Is there a solution to wire it on your fc. By the way the design of your board is awesome. So easy to wire.....thanks. Florent from France. Take care....

[@JoshuaBardwell]

The SBUS pad on my FC has a switchable inverter so you can use it as a generic RX. But the corresponding TX is not broken out so it's not as useful as you might prefer.

[@alphapapa77]

Have you ever seen where the Receiver tab isn't live but stutters? First time ever I have seen this. Just flashed my XSR to FPort since I needed to update it anyway. previous was SBus and I didn't see the issue then. Going to try and go back to see if it helps. Doesn't help I am on a Matek F405 AIO

[@alphapapa77]

Went back to SBus and SmartPort config = back to normal. Not too bad because I was already wired this way.

[@mrtokyo1989]

Thank you :D

[@djwilson48625]

Type SAVE after them commands. I missed that and it drove me nuts why nothing worked. Also, on my xlite, I don't show the vfas change in display page.

[@JoshuaBardwell]

XLite can't show VFAS on the display because it has a smaller display.

[@rickhunter1984]

Can you please make a radiomaster zorro yaapu vid???

[@mchevalier77]

I tried Fport on a quad a couple months ago. X4RSB rx and Beerotor F4 fc. RSSI displayed really low numbers but the quad flew fine, for a couple minutes, then it just dropped out of the sky. I was only a couple hundred yards away and had been farther.

[@JoshuaBardwell]

IMO there is something wrong with your receiver or setup. I don't think FPort should cause failsafes if SBUS does not.

[@XPSyan]

Same for me die you find a solution? My range is low about 200m. The drone droped From Sky. Using fport and Flex Firmware.

[@mchevalier77]

@@XPSyan I've used Fport on other receivers and flight controllers and it worked fine. Just that one was a problem.

[@JamesHavoc84]

Mamba Mini (F4) and F.Port seems to be a miss. R9MM inverted s.port pad to FC TX6 pad doesn't want to send telemetry despite CLI tweaks and R9MM being flashed and Set in telemetry modes. Radio link works and it discovers all senors, not no current draw updates, been trying to not figuring it out so far..

[@JoshuaBardwell]

If sensors are discovered but current does not update then it sounds like telemetry is working but current sensing is not. Go to power and battery tab and make sure current sensor is set correctly. Make sure the osd shows current flowing.

[@JamesHavoc84]

​@@JoshuaBardwell Thanks for your help, you were right! The telemetry was coming through okay, I mistook the lack of current sensor updates as an f.port tele issue but in fact it was the BF power and battery tab configuration that needed some tweaks. All working now, thanks again!

[@anubisdeathangel1093]

Hello sir I bought a super viper I have a controller fsi6 and a gyro reflex v2 for some reason I don’t know how to make the gyro (reflex v2) put in safe mode. I have the safe mode options in my remote (fsi6) but the gyro will still led flash instead of bing just on (safe gyro) Also I didn’t connect any ibus pmm Just the servos the reciver is a fs ia6b Is it why I can’t turn it on? Because I didn’t connect the ibus ? Help please

[@RB-kg4eu]

Hey josh. Can you please do a video on the R9mm with the SpeedyBee fc please. I can’t figure this out any help would be great. Thanks man. Iv already download the software thanks again for what you do man.

[@sparrow082]

So I just did the fport conversion on my Matek-f405 with my r-xsr on urat 2, the S Bus pad. I'm running inav and everything seems to be working except telemetry I'm only getting the r-xsr telemetry. My taranis is only running open TX 2.1.8 I'm guessing that this is the problem but I'm leery to upgrade to open TX 2.2 when previously updating my radio open TX prompted me to update my internal module and then bricked it and I had to replace it.

[@sunshynff]

On your other F-port video you said you only need 3 wires from rxsr, how come here at 3:05 it shows you have 4 wires, the green still being connected to the sbus pad. I'm trying to connect an RSXR to a Talon F7, I can get my QX7 to bind to rx, but I can't get any stick inputs through betaflight and getting an RX_Failsafe error. Using Tx4 as my fport . Thanks for the video though it still helped answer a few other questions.

[@JoshuaBardwell]

I left it connected since there was not benefit to removing it. I was originally running SBUS and it was required.

[@sunshynff]

Joshua Bardwell, thank you sooo much for the quick response! i found my problem, must have read pinout wrong, but had signal wire connected to TX1 not TX4. Btw. since the quarantine, catching up on quad repairs, my newly made JB smoke stopper saved two different quads from magic smoke. Thanks again!!

[@mrjusten100]

Can I connect the Fport from a R9mini to the SBUS pat on a f4? Both are inverted, so it should work? Okay maybe dumb question, but I'm very new... Inverted TX pat is not = RX pat? So there are 4 option Tx inverted/uninverted Rx inverted/uninverted I have an old DYS f4 AIO with just an SBUS pat... so it won't work with Fport?

[@knightshado]

Excellent video. did you also remove the sbus wire from the harness.

[@JoshuaBardwell]

I didn't. But it's not hurting anything.

[@dirwood4365]

Hey Josh. I'll be building my first quad later this summer. I have a Frsky X-Lite and an R-XSR on order and I'll be using an HGLRC F4 Flight controller+ESC combo. If I use the F-Port method, does this mean I won't have to do the uninvert/invert solder hack on the R-XSR's tiny solder pads? I haven't touched anything RC since the mid 80's when I raced 1/10 scale on/off road cars(a carbon fiber Predator) and buggies(Tamiya Hornet)with crystal radios,pot style servo controlled speed controls, and brushed motors(who remembers "Reedy" in a can? Haha I'm trying to do tons of research way ahead of my build(getting my ducks in a row) I'm so thankful for KZbin and all your videos! I can't wait to get on a sim and then fly FPV!!

[@JoshuaBardwell]

If the HGLRC F4 has a smartport pad then you do not need to do the uninvert hack. From the question, I am guessing it does not have a smartport pad, and then you have to do the uninvert hack.

[@bigdatapimp]

Joshua, I am having a very similar issue to @Snorkl FPV. I am brand new to FrSky from Spektrum as well. I have the R9M with the R9MM rx. I have it connected with the f-port pad on the RX and he sbus bad on my hobbywing omnibus f4. The RX responds and I can fly the kwad, but I get no Telemetry on my Qx7. Telemetry is enabled in BF and I do get RSSI, but that is it. I feel like I am missing something simple... Also I still want to send you a kwadgrabber!

[@JoshuaBardwell]

The SBUS pad is receive only. You need to use the SmartPort pad on the FC.

[@bigdatapimp]

@@JoshuaBardwell If there is no SmartPort pad on the FC, that means I would need a UART tx then right? in that case, would I need the "inverted s.port" pad on the RX?

[@saittafpv5846]

my sbus stop working when i tryed it only will work on ppm i tryed to even use sbus wich diff reciver not even f port just at less work it was just fine be for this

[@B-K-A-D]

Hi Joshua , I just try it on F745 contoller and R9 slim+ OTA , i flash FCC fport , i get telemetry RSSI , and reciever bound ok but it is not responding to X7 transmitter i change TX2 to TX3 I try all CLI serialrx_ half and all others but ?????? please help

[@Ex0DuCeAtLOL]

Hey everybody :) I followed everything in the video, but it still does not work. The weird thing is: it is not saying "no telemetry" when i enter the telemetry tab in the taranis qx7... Does anybody have a solution?

[@briand3239]

If you didn't change the wiring from an old board, that was set up for Sbus and Smart Port telemetry, then you didn't save any UARTs because you would have had it wired to use two different UARTs in the first place, right?

[@JoshuaBardwell]

That's kind of the point. On an F4 board you may not save anything because the UARTs are inverted for SBUS and Smartport.

[@FPVish]

Thanks for the info once again, but im having issues w getting the battery voltage on the Taranis, I dont have a page 13 of 13 (Display) from the PAGE tab to get the voltage to switch over to Vbat instead of Current, i only have 12 of 12.

[@davidemartinello327]

Hey Joshua do you think it's possible use an r-xsr with fport firmware a gps and a tramp with telemetry with a mamba f405 flight controller? Great video, I learned something today, thanks!

[@JoshuaBardwell]

You would need three UARTs for that. The Tramp Telemetry could be handled with softserial so only 2 hardware UARTs needed. The FPort requires a hardware inverter or you can use the RXSR P pad which outputs inverted smartport. I think probably it can be done.

[@derekdebie5885]

Hi Joshua, I did my first build with Fport ... and it works great ...exept the Lua script ?!?! I did all the same you did in the video ... fpvdontknowitall :-) maybe you got a tip. btw F722 mini board with an RushTank and a R-xsr @ firmware November of 2019 ... I tried the 2.0 version ... can't bind it .. Taranis 9 is showing everthing except the Lua stuff .. regards Derek

[@divingfalconfpv4602]

Installing r9mm on betafpv f4 20a thinking I'm have to do f.port or else it's sbus only no smart port

[@subzero674]

I found a R9MM, flashed the firmware R9Mini_FCC_Fport.frk, and connected the Inverted SPort to TX1 on a new F411-Wing (flashed with the F411 softserial firmware). I set Fport as the serial receiver source in iNav, and now the Taranis X9D works the channels on the Receiver tab in iNav. However, I can't get the telemetry to work. My R9M is flashed with R9M_FCC.frk, version 20190117. Per the Matek Fport page, I have entered: set serialrx_provider = FPORT set serialrx_inverted = ON set serialrx_halfduplex = ON Per Oscar Liang, I have also tried turning serialrx_halfduplex off and on again. Same with serialrx_inverted. I have gone to the Taranis telemetry page, deleted all sensors, but when I choose Discover New Sensors, it doesn't find any. Does anyone see what I'm doing wrong?

[@JoshuaBardwell]

Did you enable the Telemetry feature in the Configuration tab?

[@subzero674]

I finally got it working by going to an earlier version of the F411-WING firmware and trying a newer version of the R9MM firmware. Thanks for your reply!

[@MCsCreations]

Awesome, Joshua! Great info! 😊

[@roboticsjoe3181]

Unfortunately I bought the r-xsr based on your website/video recommendation. I never used a frsky receiver before and had no idea I needed a Frsky transmitter to use the receiver. I have spektrum, flysky, futaba, traxxas, and radiolink. None of these receivers require a firmware update to work out of the box. This was a poor recommendation and leaving out that detail without looking at an unlinked video is not cool.

what pad to connect r9 slim+ smart port with matek f405 ctr? please!

[@joeyt1948]

Hi Joshua, thanks for all the great videos. Do you ever see issues binding for the first time with an f-port setup? I just set up an r-xsr on my matek f7 and I cannot get it to bind to my QX7. I am about to rewire it to s-bus and try again but I wanted to get your thoughts. All my firmware on my QX7, FC, and receiver are all up to date

[@joeyt1948]

I figured it out! Needed to update internal XJT module. Didn’t realize that was a thing. Hope this helps someone else.

[@gpletcher70]

So I’m wondering should I try to reflash the rxsr receivers or should I update the firmware on my x lite radio And see if that helps me connect and get good signal out of the receivers

[@65chacal]

hi JB, what I'm missing. I have no telemetry apart from RxBt and RSSI after Discover new sensors. I've installed an R9 MM with latest firm FLEX_20190201. and OpenTx 2.2.3 on my Taranis Qx7. The channels are working great. The problem is the lack of sensors in the telemetry

[@JoshuaBardwell]

It means that SmartPort is not working. Did you use the FPort firmware or the regular firmware?

[@65chacal]

Thank you for your fast answer. I have flashed FLEX_20190201 on R9 MM and R9M_FLEX in the TX module (Taranis QX7). My FC is a HAKRC Flying F4 v3. I have telemetry selected in BF. I don't have UART selected because I'm using F.port. Is it necessary to assign UART with F.PORT? I'm using the S.PORT/F.POT pin on R9 MM.

[@philthayer4087]

Had to change sbus wire from rx pin to tx pin on uart.

[@JoshuaBardwell]

You mean SmartPort right? SmartPort goes to TX for FPort protocol.

[@philthayer4087]

@@JoshuaBardwell At first I just plugged the rx fport into my SBUS input (Rx), selected FPORT and the RC worked but I only got the Rx's telem. Switched to TX pin and it worked.

[@MarcelloScardi]

Great video as always!!! What if I use the uninverted SmartPort pad on the R-XSR and wire it to a TX pad of an F4 FC??

[@JeffreyJudy]

Did that work?

[@MarcelloScardi]

@@JeffreyJudy yes

[@xuxusito]

Is there any drawback for using this like increase of latency since now 2 types of signals are being communicated with the same wire? This seems just too good to be true?

[@JoshuaBardwell]

Actually, Fport has lower latency than SBUS.

[@SomethiingClever]

I have f port working soldered on the pad on r-xsr and have serial rx UART 1 and connect that wire to sbus on mamba f405 mini. In your reciever tab you have telemetry set to aux 3. It's that because you're using uart3 or... What? I don't know what to set that aux to. I have an x-lite so I need to do something with that? I get rssi and vbat but don't know if I'm missing something out...? I also did nothing with inversion. I have no clue about that. It works and flies so it didn't fry anything...

[@JoshuaBardwell]

If you are using FPort, don't wire to the SBUS pad on the FC. Wire to the SmartPort pad.

[@SomethiingClever]

@@JoshuaBardwellThanks for the reply. On the mini mamba or any other f4 fc I've come across there's never been a pinout titled 'smartbus' so I guess I'm not understanding it. In the ports tab I need to select and solder to the corresponding UART port and just select serial rx. And not select smartport on that selected port. Currently it's working as far as I can tell going through sbus. It flies and I have telemetry. Is betaflight not telling the fc that the sbus port is being used as fport in the configuration tab? goo.gl/images/qbJqnP

[@ridesoftail]

Can you show me how to do it on Ominbus F4 V2.1 with a R9mini flashed with fport. I don't think it can be done.

[@marko-ej6nd]

Hi joshua Jumper r1 f-port receiver fault as on most i have seen online when binding both lights light up but you have green led on outer edge of board and red on inner which flashes in bind mode and green goes solid after power cycle the receiver i have was got last week and when i put in bind mode red is on outer edge of board and green on inner when binding green light flashes and after power cycle red light goes solid it seems to be connected Another point was to get it to bind i had to change RF fine tune freq to -15 it will not bind at RF fine freq at 0 should i trust this receiver i have heard of other people having problems with bind procedures on this reciver

[@JoshuaBardwell]

Needing to frequency fine tune is normal for the multiprotocol module. You can find a tutorial on how to do it on Grayson Hobby youtube channel.

[@veithseeliger4984]

Hey Dudu ! I dont know what Can i do ? I have the mamba f4 mk2 Stack with the 40a esc with the crossfire nano ! In the Description is that i Connect the Tbs Nano to rx6 and tx6 ! My taranis is Connect with the Nano but i dont know how can i get the uart or get the Signal to betaglight! Can you give me please a tip how Can i realise or fix it ? Regards from Germany

[@JoshuaBardwell]

Make sure you connected TX to RX and RX to TX between the Nano and the FC. A lot of people get the wires backwards. Enable Serial RX on UART 6 in the Ports tab In the Configuration tab set serial receiver protocol = CRSF

[@mark1944]

great video as always. i tryed this without any luck for days. I ended up flashing an older Fport firmwate for my R-XSR and it worked! dont know why the latest FW-RXSR-ACCST_v191112 didnt work know matter what i did. Any ideas?

[@peterowland1552]

Which one did you use? can't get my rsxr to bind..

[@fastfred529]

Got telemetry working with FPort firmware, but still no rx movement. Noticed that the firmware for the XRS is a beta version. Maybe that the problem.

[@JoshuaBardwell]

Try serialrx_halfduplex in the CLI?

[@doktordrone]

thank you very much 👍😁🙏👍❤

[@mareksettle]

Flashed my rxsr and my qx7s accst. Works for that particular drone, but now none of my other drones will bind to that transmitter. They are all xm+ and a Mobula 6. What do I do to get them to work again?

[@JoshuaBardwell]

kzbin.info/www/bejne/ZmrKZoCcicmcr9k Does this explain it?

[@Jord0699]

I used to use the same model for all until recently as mid and end points would always be exact. Do you play with this? I imagine you could adjust it from with FC instead of controller if you wanted?

[@ChrisFloyd]

Saved me with this one!

[@bobmarleyduzit]

Joshua I added a r-xsr to my babyhawk r. I watched 3 of ur videos to help so I upgraded firmware and setup fport. I get rssi and rxbt telemetry and it works but I cannot at all arm the quad or setup switched on betaflight. I did cli status and just says RXLOSS. not sure what i missed since u am getting telemetry signal I know it's wired correct. thx!

[@franksura134]

I think you still need the sbus wire hooked up

[@bewing77]

Hey Joshua, thanks for all great videos, they are really great when you are new to this hobby, even me as an embedded software engineer for two decades stumble on these things sometimes. I have a question about this, which may be to specific, IDK. I have a Diatone GT M530, which has their Mamba F405 FC. It's good, but it's woefully lacking in documentation. It has three UARTs, none of them specifically labeled for a specific use - I've been able to discern that UART1 seems to be able to handle inverted signals since I can hook S.Bus directly to it and it works: So currently I have S.Bus at UART1 and SmartAudio on UART3. For SmartPort I had to solder a wire to the non-inverted pad on my R-XSR receiver, It had me scratching my head for a while since it got delivered with a harness wired up seemingly to fit an R-XSR, but with SmartPort going to the normal, inverted SmartPort pin on the receiver. Anyways, given this FC, which has no Telemetry/SmartPort/Whatever name for an inverted UART, do you think F-Port would work if wired to UART1, which now is wired to S.Bus without any external inversion? Cheers

[@JawaPaul]

This is a good question, and would answer my dilemma also with the DYS F4 Pro V2 ..... Should we just flash F.Port FW to R-XSR , then connect the S.Port wire from R-XSR to the same TX-1 pad that is working out of the box with Sbus ??? (And modify BetaFlight etc) But as it's an old video, I don't think Joshua Barwell will hear our cry's in the wilderness that is KZbin. He must get literally thousands of notifications every day :) Joshuaaaaaa ;)

[@teddykristiyan1053]

Sorry out of topic.. I see you use a single coper wire, for your Rx wire... is it any special reason? which is better, compare to the common use 28AWG multi filament coper ? Thank you...

[@macelius]

2020 calling, can we have f-port standard now please.

[@robbinkoot2154]

I don't understand. I've got a Diatone gt-r90 and a frsky R-XSR. Where I've to wire the SBus and s.port from my receiver on my flight controller? Both to the SBus pad on my flightcontroller?

[@fulltimejunglist9534]

Saved me much annoyance, thanks man. :)

[@fuzzwad5049]

I WAS WORKING ON THIS YESTERDAY. Are you some sort of omnipotent quad-god? Either way, I got it working on one quad, and killed an RX trying to be smart and hook up the uninverted s.port pad to the sbus-in pin (on the RX, not on my FC.) so I could just use the connector. I don’t know if it’s just bricked or totally fried.

[@ndcapper]

I got F.Port setup in Raceflight Revolt V2 running Butterflight. Hit me up if there are any question on the setup.

[@itsjustchill93]

ndcapper any issues with flashing butterflight to a revolt? Also can you go back to RF firmware if you want to without any hassles?

[@ndcapper]

@Just Chill I had to jumper the boot pins to flash BuF and use the the Impulse Driver Fixer. I think you should always be able to flash back to RF. At most you might need to jumper the boot pins. I will tell you if you want to use sbus on uart 1 or uart 4 there are some pads you might need to jumper because on the board they are TX(RX is needed for sbus). Betaflight github has a good some notes on what''s required. just google "betaflight Revolt (V1 & V2)".

[@GibitStylin]

Only cause im curious... why run butterflight on a revolt that supports raceflight? only reason i ask, is the kalman filters, which is what makes butterflight, butterflight, are basically from raceflight to begin with? (i run both raceflight and betaflight on all my quads.)

[@ndcapper]

TrueStyle fair question. There are a bunch of small reasons I guess. The biggest reason is my build of RF is so old it doesn't have turtle. Everytime I look to flash a new RF build I went to slack or now discord and there seems to be reports of issues I'm not comfortable with. Long ago it was an arming issue and most recent YSTTM. I have been happy with the flight performance I'm getting from RF. Mainly I just want to try BuF. I do have 2 identical builds and the other I'm likely going to try the newest RF... just to compare

[@VilleF1N]

How are the stock antennas on R-XSR? Is it a good idea to straight up just strip them to 33mm instead of leaving them however short they come out of the box?

[@damijanlikar1973]

kzbin.info/www/bejne/bp-pnIWhqJeXhdU

[@Ununpentius]

Joshua if I flash my X4R-SB for F.Port will I still be able to use the original SBUS connection on the end of the receiver for controlling a gimbal for example?