ExpressLRS: Installation and Setup Overview for 2.4GHz Transmitter and Receiver

[@mazlansazani7735]

Great tutorial.You got a new sub bro...all the best in coming videos!

[@ATXAirborne]

Thank you!

[@justainereid5]

dude you a hero rn...Keep doing this and you will reach far!

[@t.ticklesfpv]

Just had to stop the video to say thank you!!!! Big big thanks. This feels easy with you by our sides!

[@JoshHardie9]

Thanks for another great video. I had issues with an rx and the ppl in the discord were really friendly and helpful. I received replies pretty quick after posting in the help section

[@morpheusone7755]

Thanks fella this will come in handy to watch again. When I've received mine,

[@h2o40fpv]

This was a good video I'm ready to update my radio with ELRS so I'm watching videos to learn on how to do it I'm waiting for the receiver bought me two and the modul that go in the back of the radio I got it from Happymodel it should be on my hands soon . So for now I'm watching videos to learn on how to do it thank u.

[@dronepilot260rc]

Wow this was not explained in other videos. Thank you!

[@loukasdrones3038]

Nice walk through-it would be nice for an update now things are much easier and with 2.0 released

[@ATXAirborne]

Good point, I should do that. I think for many people even with 2.0 they’ll need to follow these steps the first time. Because you need to connect to the receivers using the older method if they don’t already have 2.0 on them. Once more receivers are shipping with 2.0 firmware, this guide should be updated.

[@nyclassic4ever130]

Great video! Explained well. Several videos are very vague, you even explain exactly what lua script is exactly. I just took the plunge. Module on its way along with a bnf with elrs and also an elrs aio fc I will use on a separate build. 🤞🏼

[@ATXAirborne]

Glad you liked the video and I think you’ll enjoy ELRS! I have all of my stuff on it now and I love it.

[@brandonmoon6563]

Oooo s#@! Going to give Bardwell a run for his money once you get in your grove keep it up simple and straight to the point

[@bulgogi19]

Thanks for making this video! I'm fairly new to RC and am building my first toothpick with ELrs. I coincidentally also have a Jumper12Pro ! Liked and subbed for sure

[@ATXAirborne]

Welcome to the hobby! ELRS is a great thing to go straight for. I’ve spent way too much time worrying about range.

[@quadswithmods]

Good job with another 👏

[@p.i.engineer398]

nice shirt!

[@crddrones3457]

Really cool I just got a wait till they gets a little more user-friendly , although I probably could do it but I’d Rather just buy yours lol 😂. all jokes aside though ,let me know if you ever sell any of your drones . I appreciate All your knowledgeable contact .Just subscribed God bless !

[@SeeFPv-qm6ie]

how do you flash factory reset on your betafpv expresslrs micro module

[@raydesheles9205]

Just curious my computer is down,so therefore my jumper t lite,I ternal module has now took a big dump "cant get the antenna wire to soilder back ,will not connect,&do not know were to get the antenna receiver module that replaces the lrs ,main ,or internal moduel,so I firstly need an answer?

[@TheFlash8889]

In my understanding it still is possible to connect the ELRS receiver to an SBUS pad on the FC, you have to check the "Invert TX" box in the elrs configurator however. Is this right?

[@ATXAirborne]

That’s correct! They added that option a while back.

[@wavesummit]

when you updated opentx did you lose any of your previous models?

[@DougEfresh.]

I imagine now that some radios have built in elrs, this would simplify some things as far as Lewis script and whatnot? Also there's drones with elrs receiver's installed, so another shortcut I imagine. But I am considering the zorro radio with elrs ,the version that comes with a couple receiver's and t type antennas because I have quite a few drones with xm+ receiver's and want to convert them to elrs. Such as the shadowfiend and others. I'm just wondering since the radios already have elrs this should make it much easier to get my drones converted from Frsky to elrs? Or do I still have alot of setup to do? I'm not that good with computers and hate getting new files set up and whatnot. Not a problem with betaflight, just the Lewis script is my big fear. I've never had to mess with it.

[@ATXAirborne]

The radios with ELRS built in do simplify things a little bit, but not significantly so. You still have to load the Lua script onto the SD card for the radio. It's really nothing to be afraid of, though! If you download and use the ELRS Configurator to flash the ELRS firmware on your radio and receivers, the configurator has a button to "Download Lua Script" and that will download it to your computer. Then you just put it in the Scripts\Tools folder on the SD card for your radio. If you can handle Betaflight, I promise you can handle this :)

[@DougEfresh.]

@@ATXAirborne okay thanks for that. I just always get nervous or worried when I try something new, but afterwards I'm like oh, that was easy. Lol

[@MadDragon75]

Wild guess but that's a jumper T12 Pro am I wrong? I just ordered Express LRS for mine. It should be here tomorrow.

[@ATXAirborne]

Yep that was a T12 Pro! I don’t have it anymore, but it’s a great radio.

[@MadDragon75]

@@ATXAirborne it was the last one I bought. I still use it daily.

[@bertbeinaaf8314]

It isn’t necessary to update OpenTX with the nightly build version. Only when you want to have the lowest latency, and it has something to do with displaying the packet rate in the right way. Don’t know all the ins an outs of it, but i thought i should mention it here Btw: nice video series about ELRS👍

[@ATXAirborne]

Actually yes, I think that since I released this video, the newest release of OpenTX actually does support ELRS, although as you said perhaps not in the 500hz mode. I should check into that and post a more detailed update. Thanks for the clarification.

[@micsherwood4930]

When binding. i add power and my RX LED never goes out, so it doesn't get into bind mode. What are my options?

[@ATXAirborne]

Try removing power as soon as the RX light goes on. Then do that again. Then plug it in a third time and you should see the double blink for bind mode. I typically set a passphrase in the ELRS configurator when I build the firmware and bind that way. It’s so easy so I recommend that. But the method I mentioned first should work. Let me know if it does not.

[@micsherwood4930]

@@ATXAirborne i tried both methods. the configurator build keeps crashing too.

[@micsherwood4930]

@@ATXAirborne sadly i tried that a couple times. that process bricked a dji air unit,so i have given up on that method.

[@oihdnuoc679]

Thx, it was helpfull

[@360vroomers]

Re firmware does that mean that if you use pp rx you cannot connect to an ep rx? All quads have to use one or other?

[@ATXAirborne]

That was what I understood to be the case when I set mine up, but another commenter seemed to think it was not the case. I haven’t investigated it again yet but probably will soon because I’m getting some EP receivers in a week or two. If you’re buying new, I’d get the EP2 instead of the PP.

[@360vroomers]

@@ATXAirborne ok thanks. personally i prefer the fact that PP has no exposed antennas. Fewer things to break. :)

[@ATXAirborne]

EP2 also has the ceramic antenna! It’s EP1 that has an external antenna.

[@360vroomers]

@@ATXAirborne Ah, my mistake I thought I got the PP RX but actually it is EP2. Thanks!

[@360vroomers]

@@ATXAirborne And re PP RX vs EP RX compatibility, I asked on the Discord and someone said that if you are using the latest firmware for the TX, then that's not an issue. You'll be able to use any 2.4 RX.

[@afkcnd2395]

Can it run on a TX without opentx? Like a Tango 1? Or a spektrum nx6? +1 sub btw

[@zlachannel8674]

any clue to be used in tango2

[@ATXAirborne]

You'd need a lite-size module for that. The current one out (www.banggood.com/custlink/3DKYOkjl8C) is made for the Jumper T-Lite. There's some reference to using it on the Tango 2, but it seems to require changing a connector to make it work. I believe I've seen that Happymodel is working on another version of the lite module which should work on the FrSky X-Lite and (presumably) the Tango 2. Hopefully that will be out before too long.

[@zlachannel8674]

@@ATXAirborne i truly want it so badly, and not much tutorial on how to swab firmware in tango 2,,i guess the price will double when someone has upload the tutorial🥲🥲

[@markogania1891]

What is the standard size of wire should i use?

[@ATXAirborne]

For this, use the smallest thing you can. It’s not high current by any means, and larger wires just add weight. I typically scavenge leftover wires from camera cables or flight controller wires.

[@markogania1891]

@@ATXAirborne thank you.

[@arthurtorricer4544]

Can I use this on Eachine Novice IV drone with Tx12 remote?

[@ATXAirborne]

You should be able to, and it’d be a good choice for that one since that drone seems to be designed for long range. I’d get the EP1 RX with the external antenna if you do it. You also will need the transmitter module so that the TX12 can communicate over ExpressLRS.

[@jamesceastep8874]

Please make clear which ELRS frequecy system you are documenting (915mhz or 2.4ghz) in the title and video description.

[@ATXAirborne]

Thanks, good idea. I've updated it. For what it's worth, for anything other than specifically long-range flying, I can't imagine 915MHz being worth it. I'm getting range out of the 2.4GHz that should be more than sufficient for what most people do with micro quads. If you're flying a fixed-wing plane or doing long range quadcopter flights, 915MHz might start to make sense. I also believe the setup process for both versions is very similar, although I haven't set up the 915MHz gear yet.

[@zbirdman777]

Seems like half the work was just updating firmware on everything. I’m really surprised there is specific firmware for each version of the receiver, even if they’re all 2.4ghz. That’s pretty annoying.

[@ATXAirborne]

I agree, it’s a big downside right now. I think if they don’t release a universal firmware, the answer will be to use the EP1 and EP2 receivers from happymodel. The EP1 has an external antenna and the EP2 has the ceramic antenna. Both have WiFi for firmware updates, as well.

[@JoshHardie9]

@@ATXAirborne I think if you use the expresslrs configurator to flash you can use all happymodel rx’s :)

[@ATXAirborne]

I’ll have to look into that, the Happymodel site didn’t seem to indicate that, but I’d love to be wrong!

[@jklong03]

@@ATXAirborne just get the EP1 or EP2 and install the Configurator. Simple to build firmware and specify the binding phrase you use. Then simple Wi-Fi connection to each and install the RX and it binds immediately on power up 👍

[@bertbeinaaf8314]

@@jklong03 When you use a binding phrase the connect-disconnect sequence 3 times doesn’t work anymore. It just binds automatically. Took me a while to figure that out…