Hey guys I have a Happymodel ES24TX Slim Pro on the way. It's supposed to be plug and play for the X lite's and I have been reading about the ELRS configurator and LUA scripts and am starting to get it, I think anyway. What I am really wondering about is that I only recently dusted off my FPV gear and got back into it and I have a X Lite that I never used that I'm going to use for the module but the only problem it's on Open TX Version 2.2.2, circa 2018. Will this affect my my flashing of the module and transmitter? All the tutorials I see seem to be on Edge TX so I'm not really sure what to think. Maybe just flash the latest OpenTX FW to my X Lite and then start the ELRS configurator?? I'm getting way ahead of my self as the module hasn't even arrived yet but I want to be ready to go the day it arrives. I have been looking up info on expresslrs.org and I understand all that information about the configurator and how to flash the FW to the module. It's the X  Lite and OpenTX I'm worried about.

(06-May-2024, 12:19 AM)NYCDiesel Wrote: Hey guys I have a Happymodel ES24TX Slim Pro on the way. It's supposed to be plug and play for the X lite's and I have been reading about the ELRS configurator and LUA scripts and am starting to get it, I think anyway. What I am really wondering about is that I only recently dusted off my FPV gear and got back into it and I have a X Lite that I never used that I'm going to use for the module but the only problem it's on Open TX Version 2.2.2, circa 2018. Will this affect my my flashing of the module and transmitter? All the tutorials I see seem to be on Edge TX so I'm not really sure what to think. Maybe just flash the latest OpenTX FW to my X Lite and then start the ELRS configurator?? I'm getting way ahead of my self as the module hasn't even arrived yet but I want to be ready to go the day it arrives. I have been looking up info on expresslrs.org and I understand all that information about the configurator and how to flash the FW to the module. It's the X  Lite and OpenTX I'm worried about.

I can't speak of the compatibility of your X Lite but I am running OpenTx 2.3.15 (that's the lastest version of OpenTx) on my Taranis X9D+ 2019 with an ExpressLRS module. No issue there.

The version of OpenTX that your FrSky X-Lite is currently running is too old to support ExpressLRS, so you are going to need to upgrade it. ExpressLRS makes use of the CRSFshot protocol which was only implemented in OpenTX 2.3.12, so you are going to need to update your transmitter to at least that version. If you decide to stay on OpenTX then you may as well update to the very latest version which is OpenTX 2.3.15. If you don't care about your existing models and settings then you can simply just upgrade to the latest version of EdgeTX, but if you want to retain your models and settings you are going to need to "hop" through a few versions. Details about the versions you will need to hop through are detailed in the last paragraph of the post linked to below...

https://intofpv.com/t-should-you-update-...#pid217432

Damn am I happy I joined this board. Appreciate the responses. If all I have to do is upgrade the fw then I'm all set, in fact I'll do it now since I'm BSing anyway.

Okay so I installed open tx 2.3.15 and copied over the lua scripts 1.7.0 and ran the betaflight setup in the tools menu and it ran but now when I go to the betafflight setup in the tools menu it says waiting for connection? I didn't do any of the ELRS module setup yet is that maybe why?

(15-May-2024, 03:03 AM)NYCDiesel Wrote: Okay so I installed open tx 2.3.15 and copied over the lua scripts 1.7.0 and ran the betaflight setup in the tools menu and it ran but now when I go to the betafflight setup in the tools menu it says waiting for connection? I didn't do any of the ELRS module setup yet is that maybe why?

Do you have an ExpressLRS module yet? You need to have the module connected. Then you need to match your Lua script version to the ExpressLRS firmware on the module. Then you need to setup a model with the external module turned on. Then you can click on the Lua script under tools to manipulate the module.

Yeah that was exactly it, after going to the elrs tab in the tools page and now theirs a new page that says HM ES24TX PRO at the top then packet rate, telem ratio, switch mode, model match, tx power, vtx administrator, wifi connectivity, backpack [BLE Joystick] and bind. This is the lua script from what I understand so I'm good there.

Much thanks for the response Seismic, really digging this place

So I have two of the HGLRC XJB 145s with FC's like this:

https://pbs.twimg.com/media/DMQuAlsVAAEdvd4.jpg

So I just wire the rx from the ELRS receiver to the tx6 on the FC, tx to rx6 on fc, turn on serial receiver on uart6 in BF and it should be gtg right? I just flashed both stacks to BF 4.5 with CRSF protocol and i want to solder it up now but it's getting late. Would really appreciate some input.

(15-May-2024, 03:38 AM)NYCDiesel Wrote: Yeah that was exactly it, after going to the elrs tab in the tools page and now theirs a new page that says HM ES24TX PRO   at the top then packet rate, telem ratio, switch mode, model match, tx power, vtx administrator, wifi connectivity, backpack [BLE Joystick] and bind. This is the lua script from what I understand so I'm good there.

Much thanks for the response Seismic, really digging this place

So I have two of the HGLRC XJB 145s with FC's like this:

https://pbs.twimg.com/media/DMQuAlsVAAEdvd4.jpg

So I just wire the rx from the ELRS receiver to the tx6 on the FC, tx to rx6 on fc, turn on serial receiver on uart6  in BF and it should be gtg right?  I just flashed both stacks to BF 4.5 with CRSF protocol and i want to solder it up now but it's getting late. Would really appreciate some input.

Good that you got the Tx module working. 

If you are using an external serial ExpressLRS receiver you can do one of two things. 1) connect Tx to Rx and Rx toTx pins between the receiver and the FC as you have described. I cannot see the picture very clearly so I assume you have found Tx6 and Rx6 pads empty on your FC. You go to the Ports page on BetaFlight configurator and turn on UART6 serial receiver slider.

Then you need to bind the receiver to your transmitter module. That is done easily as a BetaFlight pass through. You connect the FC with the receiver to your computer. Open ExpressLRS configurator. Choose a target (what ever your brand of receiver you are using) and Device, pick the receiver best describe which receiver you have. Scroll down and flash firmware using BetaFlight pass through. You can add a bind phrase which I highly recommend and flash the firmware to the receiver. Then you need to plug in your transmitter module or use wi fi to connect the transmitter module and flash the ExpressLRS firmware onto the module with the same bind phrase. Once you have the same bind phrase set on the receiver and the transmitter module and set your packet rate on your transmitter module to 250 Hz the Rx and Tx will bind as soon as you power up.

2) This is only an option. Since I see some sBus pads on your Fc you can also configure your ExpressLRS receiver to output sBus data and only use 3 wires instead of 4. However let's not complicate the issue if you have Tx6 and Rx6 available on your FC.

Thank you for the help man, I was going to do the 3 power up binding procedure but if you think that the BF pass through is the way to go, I will definitely try that first. Appreciate the detailed instructions, will update ASAP.

(15-May-2024, 10:51 AM)NYCDiesel Wrote: Thank you for the help man, I was going to do the 3 power up binding procedure but if you think that the BF pass through is the way to go, I will definitely try that first. Appreciate the detailed instructions, will update ASAP.

I never liked the 3 power cycle bind feature. If you are flying a high cell count machine and don't have a spark arrestor you wind up making a lot of sparks. I rather plug my battery in one time for each flight.

LOL, that makes sense. So I wired it up to this fc :



on the tx6/rx6 pads but couldn't get the receiver to power on, the elrs receiver's have a LED that lights up when it's powered up right? I didn't see any light and their instructions are extremely vague. Another thing I noticed is that my receivers are on ELRS 3.2. and my module is on only on 3.0. This is why I think  I'm having an issues, I'm going to update the module FW and see if that helps. Thanks again for any help.

(16-May-2024, 05:14 AM)NYCDiesel Wrote: LOL, that makes sense. So I wired it up to this fc :



on the tx6/rx6 pads but couldn't get the receiver to power on, the elrs receiver's have a LED that lights up when it's powered up right? I didn't see any light and their instructions are extremely vague. Another thing I noticed is that my receivers are on ELRS 3.2. and my module is on only on 3.0. This is why I think  I'm having an issues, I'm going to update the module FW and see if that helps. Thanks again for any help.

Did you connect the power and ground from the receiver to the FC? All told you need to connect 4 wires from the receiver to the flight controller. Connect to an empty 5V pad and ground. Yes, receiver has an LED that needs to come on.

(16-May-2024, 05:14 AM)NYCDiesel Wrote: So I wired it up to this fc :



on the tx6/rx6 pads but couldn't get the receiver to power on, the elrs receiver's have a LED that lights up when it's powered up right? I didn't see any light and their instructions are extremely vague.

I've got one of those HGLRC XJB FC's. The 5V pads on that FC don't get powered up with just a USB cable plugged into the FC which is by design (not a fault). You need to apply LiPo voltage to power up external peripherals that are connected to any of the 5V pads.

(16-May-2024, 05:14 AM)NYCDiesel Wrote: Another thing I noticed is that my receivers are on ELRS 3.2. and my module is on only on 3.0. This is why I think  I'm having an issues, I'm going to update the module FW and see if that helps.

While it's preferrable to try and keep your receivers and modules on the exact same versions, Minor version differences within the same major version will still be compatible with each other, so the V3.0 firmware on your module will be compatible with the V3.2 firmware on your receiver.

Yes I connected all four wires, I used some old xm+'s to get a couple of my quads flying so I know how and where to solder. I'll look it over tonight and update.

(17-May-2024, 10:53 PM)NYCDiesel Wrote: Yes I connected all four wires, I used some  old xm+'s to get a couple of my quads flying so I know how and where to solder. I'll look it over tonight and update.

The other thing to check will be to use a multimeter to see if you get voltage going into the receiver.