#ELRS Setup

149 messages · Page 1 of 1 (latest)

dapper hollow
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Having a few problems with setting up my radio and other elrs equipment. The issue is primarily that it disconnects from the connected device after 10 seconds or less, and when it is connected it doesn’t comply very well. I’d appreciate any help thanks!

pastel quest
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Have you installed the configurator yet?

dense sage
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The issue is primarily that it disconnects from the connected device after 10 seconds or less
are you talking about wifi?

dapper hollow
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Yes

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I’ve followed @twilit lance he was very helpful and we got the radio and drone connected

dense sage
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what are you using to connect to the wifi?

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oh so what do you need wifi for then?

limpid kayak
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Reflash via USB/passthrough

dapper hollow
dense sage
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iphone will ignore wifi without internet if data is on

dapper hollow
dapper hollow
dense sage
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but anyway

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if the're talking, what do you need wifi for?

dapper hollow
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Well em said I should have it available to setup or manage

pastel quest
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they were using wifi because usb didn't work lol

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and naw I didn't

dapper hollow
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So I should just leave it?

pastel quest
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you should flash both the transmitter and the receiver to the newest version with a binding phrase set

dapper hollow
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We tried but it kept disconnecting

limpid kayak
dapper hollow
limpid kayak
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Flash it via USB, post the log if you get an error

dapper hollow
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Okay well I’m away from it for the next few days so I will and send logs

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Just wondering how common the disconnection problem is and if there’s any fixes

dense sage
limpid kayak
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It happens if the flash didn't complete properly, and the fix is to flash via USB or FTDI

dapper hollow
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Nothing I can do about that

dapper hollow
dense sage
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USB-Serial adapter

limpid kayak
dapper hollow
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Okay well I can try flashing via usb again

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But the WiFi thing shouldn’t be an issue

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It’s weird

limpid kayak
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Did you flash via WiFi previously?

dapper hollow
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No I got the phrase in so I could get them to pair

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So technically I solved it to where I can fly

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With WiFi

solar grotto
limpid kayak
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Yes, there are several

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BetaFPV and Radiomaster both sell them, as do Amazon and AliExpress

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https://www.radiomasterrc.com/products/radiomaster-expresslrs-usb-uart-flasher
https://betafpv.com/collections/rx-tx/products/expresslrs-recovery-dongle
https://www.amazon.com/HiLetgo-FT232RL-Converter-Adapter-Breakout/dp/B00IJXZQ7C

RadioMaster RC
RadioMaster ExpressLRS USB UART Flasher

When upgrading ELRS receivers, there are primarily two options: Wi-Fi and Serial Port. While Wi-Fi upgrading is very user-friendly and doesn't require additional accessories, it can be susceptible to failures caused by unstable networks. For a more reliable and professional upgrade experience, RadioMaster ExpressLRS UA

BETAFPV Hobby
ExpressLRS Recovery Dongle

ExpressLRS Recovery Dongle is an FTDI USB to TTL module based on the CP2102 bridge controller, which is applied to the firmware upgrade for the ESP32&ESP8XX chip. The ExpressLRS Recovery Dongle is compatible with many ELRS receivers in the market such as ELRS Lite Receiver, ELRS Nano Receiver, ELRS Micro Receiver,

HiLetgo FT232RL Mini USB to TTL Serial Converter Adapter Module 3.3...

HiLetgo FT232RL Mini USB to TTL Serial Converter Adapter Module 3.3V/5.5V

solar grotto
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@dapper hollow Get one of these and force flash via UART once you are home. The dongle comes with pins that you have to match and press onto the ELRS receiver. You have to get the configurator ready first before you press on.

Don't say I never helped you man

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That is the best recovery that you can get and the easiest as it is just prodding the pads itself. If you glued/heat shrinked the RX, you will need to cut it and do it that way.

limpid kayak
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Or just flash via passthrough...

solar grotto
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He had problems with that in the beginning I believe. I came in late to the convo

limpid kayak
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I would not be surprised if they were not following the directions

solar grotto
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I will keep my mouth shut and just nod

limpid kayak
solar grotto
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Doesn't like reading documentation

pastel quest
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I don't think they ever tried it

dapper hollow
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So I’m going to purchase/try a few more on the radio and see the results

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At the moment I want the WiFi working otherwise yes I can try manually fixing it with the adapters but my 140$ radio should be working as per spec otherwise I’m going to get a refund

pastel quest
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bruh you are clueless as to what's going on

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you just need to flash it using usb

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and you can

dapper hollow
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I’ll flash it or try to again :/

solar grotto
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Either flash via USB passthrough on betaflight, or get the UART USB ELRS and use that

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Simple

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Your radio is not the problem... yet

nova carbon
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I keep getting Build Errors and have no idea why. Radiomaster wont help me and I am about ready to just throw $2000 in the trash. My TX16S Bricked about a month ago when i turned it on for the first time in a few months. Ive gotten it finally flashed to 2.9.4 but ELRS wont update to 3.3.2 and now I may have bricked my External BetaFPV 1W Micro Module

📎 ExpressLRSBuildLog_20240321202302694.txt
pastel quest
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did you unplug it?

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did it say it failed?

nova carbon
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No unplug, it said it failed, and now its not leaving the little controller signal startup screen

pastel quest
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the module or the tx16s?

nova carbon
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the module

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the tx16s is ok for now

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and the navigation button on the module wont do anything at all

pastel quest
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did you follow all this?

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including the DIP switches?

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this is why I hate BetaFPV

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lol

nova carbon
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i just realized the dipswitches... if its too late can i go back after switching them to the correct possitions

pastel quest
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in what way?

nova carbon
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Ok I got that to work for the external module... how do I get the tx16s and the nano rx to the latest firmware

pastel quest
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TX16S is a lot simpler

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are you wishing to update EdgeTX or internal ELRS?

nova carbon
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ELRS

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I got Edge TX finally updated after 2 days of repetition

pastel quest
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it requires a little bit of first-time setup

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as for the nano rx: you plug it into the flight controller and select "betaflight passthrough" in the expresslrs configurator

nova carbon
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ill give it a shot, if i have any other issues ill reach back, thank you so much

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OMFG my Silicon Ports Driver got deleted and I had to reinstall!

pastel quest
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that's a Windows moment

nova carbon
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I used to be on Linux for the longest time until it stopped working with Betaflight and COM Ports, I uninstalled because Windows is so damn big and crapped out my laptop, but now I have tiny11 and its proving that windows sucks for me

pastel quest
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yeah Betaflight doesn't care much about us

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I can usually get it to work though

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just running as root

nova carbon
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not for mine, it wouldnt allow my drone to auto detect and had to run like 4 lines of code in terminal before betaflight would recognize the connection

pastel quest
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obnoxious WebUSB and Chromium garbage frankly

nova carbon
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huh

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I appreciate the knowledge and assistance

pastel quest
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Do you have Betaflight configured?

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you basically need to configure Betaflight to be set up for the receiver and only then can you flash it using passthrough

nova carbon
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Lemme screenshot what its set up to

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in the ports tab right

pastel quest
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Ports and receiver tab

nova carbon
pastel quest
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So the receiver is getting power and hooked up to uart2?

nova carbon
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Thats how I have had my ports set since first building this quad, i did just notice that ESC is enabled on Sensor Input

pastel quest
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Receiver protocol is CRSF with serialrx_inverted = off and serialrx_halfduplex = off.

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try putting this in the CLI

# 
serialrx_inverted = off
serialrx_halfduplex = off
save
nova carbon
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Ok

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It didnt change anything it doesnt look

pastel quest
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WARNING: Pre-connection option "no_reset" was selected. Connection may fail if the chip is not in bootloader or flasher stub mode.

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unselect that maybe

nova carbon
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Lemme try, where did you see the no reset selection

pastel quest
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It's in the log you just sent

nova carbon
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oh sorry, i keep just seeing the dots at the end, how would I unselect when its not even an option

pastel quest
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Could you confirm your wiring?

nova carbon
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ooops that was the same file as before

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And yes, Uart 1 is VTX, Uart 2 is RX

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I know its an ugly build, but its my first one ever

pastel quest
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tx -> rx

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rx -> tx?

nova carbon
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correct

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I just found that i pinched my ground wire under my camera brackets... its still intact for the most part, but there are exposed wires i just covered with electrical tape. I dont have access to my soldering iron nor do i have any spare wire leftover to use

limpid kayak
nova carbon
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One was the sbus for dji

limpid kayak
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That should not be connected

limpid kayak
nova carbon
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Ive been running it like that since i started and originally was going to get the dji rc controller but just left it and never ran into issues

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But if i need to clip it i can, i guess i also dont need the sbus gnd connected either

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And now its connected and working after i walked away for 15 minutes

nova carbon
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Tested motors, all good... tested radio to drone with props off and all good

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Idk what happened and what i did but its working again somehow

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A lot of it wouldnt have been without your suggestions

pastel quest
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well, go out and have fun!

nova carbon
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Im gonna wait for tomorrow to back everything up because ive been doing this for 2 days straight and im exhausted

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I cant fly right now either... im just not mentally ready after all this

pastel quest
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that really is how it feels sometimes

kind steppe
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@nova carbon is this cart?

nova carbon
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Cart?

kind steppe
nova carbon
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Glad to know the community doesnt want me as well... later

kind steppe