Just recieved my tx and rx from happymodel. The reciever is so tiny!! I have seen the reviews but still amazed when I saw them irl.

I plan to put the tx inside my x9 lite and convert my TP3 first.

(04-May-2021, 04:06 PM)voodoo614 Wrote: FS-i6X doesn't have a JR bay to accept external module like Crossfire or R9M. So it will not work. You will need a transmitter with runs OpenTX and have a JR bay.

Thank you for answer. 
What about?



So I get it wrong that these module take the PPM signal from the controller and convert it to HF signal in modulation according to the appropriate protocol according to the module type? I was based on this logic.

Happymodel tx inside my x9 lite, super easy mod and fits great in my backpack with antenna on.

Mounted the EP2 rx on my TP3, amazing to not have to deal with any antenna on this quad.

Test flight in a couple of days when it stops rain

(04-May-2021, 07:05 PM)psicho100pro Wrote: Thank you for answer. 
What about?



So I get it wrong that these module take the PPM signal from the controller and convert it to HF signal in modulation according to the appropriate protocol according to the module type? I was based on this logic.

Cool mod. I am unsure if you flash the R9M module with Express LRS, that the PPM will work. You probably have to try it to find out.

So im going back in the hobby after being away a year. I noticed this ExpressLRS. From what i have seen it seem to be the right thing for me. 

But i have a few questions, i hope u guy can help me with. 

1. What unit will be best for RC FPV Car's ? (They offcource are always low to the ground.)

2. Also im looking to replace the firmware on my 2 mirco quads that are using FRsky R-XSR and a XM+ 

3. I also want to do some long range FPV with my airplane wing (15km/10miles or something) My wing now has a XM+  


Everything is running from my Taranis X9D+ 


The whole frsky firmware update stuff made my head explode so i would like to flash everything to ExpressLRS and be done with it. I dont realy mind the flashing but when i do flash something i want it to just work and my that is not my experience with flashing and FRsky... 


I don't have any R9M stuff only 2.4Ghz. Should i buy the happymodel 868Mhz(EU)? Or the 2.4Ghz model? 
I'm not sure what to do, and if i can use my FRSky receivers of if u should buy the ExpressLRS reveivers?

(Im not sure if this is relevant, but i also have some chinese brand quads/rc car/boat that runs on a 4in1 protocol module to i can run all chinese protocals on my X9D)

Just received the rest of my 2.4GHz ELRS gear in the mail a month after ordering from AE. If I had known Pyrodrone, GetFPV, and RDQ would all carry the gear I would've just waited to order and had everything a week or two ago. Oh well

Really impressed with the hardware. It's tiny, especially with the built-in ceramic antenna! The devs are doing an awesome job getting the 1.0.0 RC polished for release. There have been a few issues, but they always seem to trace back to dodgy hardware (quirks of Taranis radios, broken Super 8 antennas) or the bleeding edge software needed to support the crazy rates ELRS is capable of (OpenTX nightlies). The devs have been proactive on this front as well, going as far as developing their own handset and OpenTX fork!

The WiFi update built into the ESP32 based TX and RX is really slick and works well. Makes it trivially easy to keep things up to date without having to resort to passthrough or STLink. Once you get everything setup the link is solid and fast! I haven't flown the 500Hz system yet, but stress-tested it the bench for an hour with no issues. 

(09-May-2021, 12:34 PM)jorrick Wrote: So im going back in the hobby after being away a year. I noticed this ExpressLRS. From what i have seen it seem to be the right thing for me. 

But i have a few questions, i hope u guy can help me with. 

1. What unit will be best for RC FPV Car's ? (They offcource are always low to the ground.)

2. Also im looking to replace the firmware on my 2 mirco quads that are using FRsky R-XSR and a XM+ 

3. I also want to do some long range FPV with my airplane wing (15km/10miles or something) My wing now has a XM+  


Everything is running from my Taranis X9D+ 


The whole frsky firmware update stuff made my head explode so i would like to flash everything to ExpressLRS and be done with it. I dont realy mind the flashing but when i do flash something i want it to just work and my that is not my experience with flashing and FRsky... 


I don't have any R9M stuff only 2.4Ghz. Should i buy the happymodel 868Mhz(EU)? Or the 2.4Ghz model? 
I'm not sure what to do, and if i can use my FRSky receivers of if u should buy the ExpressLRS reveivers?

(Im not sure if this is relevant, but i also have some chinese brand quads/rc car/boat that runs on a 4in1 protocol module to i can run all chinese protocals on my X9D)

1. ELRS doesn't support PWM output, so I'm not sure how you'd use it with your R/C car. There are serial to PWM converters, but I don't know if they've been tested yet. I'd check the ELRS Discord and see if anyone has tried yet, and if you decide to go for it the Discord will be a great resource for troubleshooting as well.

2. ELRS will far outperform those RX, but you'll need new hardware. The R9 system can be flashed to 900 MHz ELRS, but the FrSky 2.4GHz stuff is not supported. Luckily you can get a full setup with TX and 2 RX for <$60.

3. ELRS will perform way better than XM+ for long range. Check out Wezley Varty's videos where he flies 40+km at the lowest power level. 

If you're in the EU, I'd just go with the 2.4GHz ELRS system and avoid the limitations of running at 868MHz. You'll need an ELRS 2.4GHz TX module & case, antenna, and a 2.4GHz RX. The EP1 and EP2 are slightly cheaper and have built-in WiFi for updating. A future version of ELRS will also enable using the WiFi as a Speedybee like interface to allow wireless BF configuration. The EP1 RX has an IPEX connector for running an external antenna, while the EP2 has the built-in ceramic antenna. Both are incredibly tiny and light, and are available for ~$12 in the US.

HappyModel just announced the 2.4GHz version of the AIO whoop FC. Not many details yet, but likely just a 1S 5A FC. Supports 500Hz ELRS though!
   

This is starting to get really tempting now for micro quads. I just want them to bring out a 2S version so I can put one in my Eachine Trashcan 

I'm also considering getting one of the 2.4GHz modules and a ceramic receiver for my GEPRC Phantom. I was going to put Crossfire in it but the antennas are so freaking big for such a small quad that I never got round to doing it. I think a 2.4GHz ELRS receiver with a ceramic antenna would be a perfect fit.

Do you think the actual module and receiver hardware itself is "finalised"? The main reason I'm still holding off is because we all know what "version 1" hardware in this hobby is usually like. So it's generally better to leave version 1 gear to people who are happy to beta test the new bleeding edge technology and then jump in on the version 2 gear once any issues have been discovered and rectified.

So far my hardware is holding up, update via wifi was super easy and everything works great. I will report if I have any issues

AliExpress has HappyModel ELRS 2.4 starter kits for 61.99.
Module and 3 receivers with case.
There’s a choice of either 2.4G EP1 or EP2 RX.
I don’t know the difference between each brand or the ELRS module/receivers but the price point and the performance makes it almost a no brainer.

I received the 2.4GHz transmitter kit and an EP1 (with external antenna) today. Wow, these are incredibly small indeed! I'm putting the TX in my Taranis Q7. My plan is to put this RX in my new 4" LR quad, but I ordered from eBay an EP1 (ext antenna) for my 5" and an EP2 (ceramic antenna) for my 2.5" quad.

I plan to dig into this tonight. Pretty exciting how awesome this performs for so cheap.

I finished setting this up last night. Here are a few notes if it helps anyone.

ES24TX with Taranis QX7 (old one)
I did not mod the radio at all. It will run at 115200 baud with a 250Hz frame just fine. This is good enough for me. I flashed the TX with 1.0.0RC7 via wifi and it worked as expected.
Once you're linked up to the RX, be sure to delete your old telemetry sensors and rediscover new ones if you're using an old "model" in the radio.

EP1 RX connected to old DALRC F405 FC UART2. Previously I had an XM+ attached to TX4/RX1 or something like that. Its was the SBUS ports.
I found a few hiccups here. First I could not get Betaflight passthrough to work. It turns out the firmware version shipped with the RX doesn't support it. Instead, simply use wifi. To do this you simply power up the RX and wait for the orange light to blink really fast. Then you'll see the wireless AP and it flashes just like the TX.
I also had serial_halfduplex = ON in Betaflight from using the SBUS on my XM+. I finally figured that problem out and turned that off.


I haven't flown it yet, but everything bound and showed up in Betaflight immediately. I kept my quad in my office and walked around the house and my backyard with the radio and no signal issues.

Just published a tutorial on how to setup ExpressLRS 2.4GHz TX and RX.
It's still a bit more work than using Crossfire, so it's probably not for everyone, hopefully it'd only get easier from here

(17-Jun-2021, 12:16 PM)Oscar Wrote: Just published a tutorial on how to setup ExpressLRS 2.4GHz TX and RX.
It's still a bit more work than using Crossfire, so it's probably not for everyone, hopefully it'd only get easier from here

Very nice work. That is probably the most comprehensive ELRS setup guide I've read 

I've seen a few reports of people getting some failsafes on some of the release candidate firmware versions of ELRS, even the latest V1.0.0 RC8 version, so there is clearly still a few bugs to be ironed out. I'm sure ExpressLRS will become more and more reliable as time goes on, but people just need to keep their eyes open and be aware of the risks of running unsupported Open Source software that is still relatively new and is constantly evolving, especially the non-final firmware releases. I probably wouldn't run an expensive quad out to a long distance on it just yet.

I also read something about improvements to the hardware, so it appears that the hardware is also still evolving to make it more reliable / stable.

I will probably think about jumping on the bandwagon myself once things level out and have stabilised

(17-Jun-2021, 12:16 PM)Oscar Wrote: Just published a tutorial on how to setup ExpressLRS 2.4GHz TX and RX.
It's still a bit more work than using Crossfire, so it's probably not for everyone, hopefully it'd only get easier from here

Thank you so much Oscar !!! always beautiful guides  and LOTS of interesting information.
I was looking for additional information on how to best set RC SMOOTHING and ff_interpolate.

I use 868, and I guess it needs to be changed a bit.
how about ff_interpolate_sp = AVERAGED_2
and RC Interpolation Interval to 12ms (for 200Hz) ??