ExpressLRS telemetry explained

Подписаться 172 тыс.

Просмотров 14 тыс.

50% 1

Huge thanks to Simion for helping with this video!
www.expresslrs.org/3.0/info/t...
www.expresslrs.org/3.0/quick-...
Time codes:
0:00 Intro and scope of the video
2:15 ExpressLRS telemetry NORMAL, RACE, LINK and DATA explained
5:14 How ELRS Telemetry Ratio Works
8:11 How changing the telemetry radio changes the time you wait for a telemetry packet
10:00 Ardupilot setup tips for ELRS telemetry
11:21 LUA Telemetry Script setup tips (inc. experimental mode in Yaapu for ELRS)
13:33 Summary
Thank you for taking the time to watch the video. You can find me on social media at / painless360
/ painless360
www.thingiverse.com/painless360
R/C is one of my hobbies and I do this for fun. I don't do this to replace a day job so if you have found the content useful then and want to support the time I spend helping others and creating content then please consider liking the video and subscribing. It helps a lot!
If this video helped you and you want to support the channel you can use these links:
/ painless360
paypal.me/painless360.
Remember that reviews are subjective. Don't rely on one persons opinion - watch reviews and make your own mind up. Where-ever you can support your local R.C resellers and shops, they need your support more than ever.
If you liked this you can see more R/C related videos on the channel - / painless360 , use the playlists to find entire series on topics you might find interesting.
Be aware that any comments that are rude, disrespectful or use bullying or threatening language will be deleted. Pedantry isn't encouraged either. This channel is all about helping others and passing on advice and ideas so please comment in that spirit. Comments that don't adhere to these simple rules will be deleted.
Thanks again for watching, support each other and the hobby as we have enough external drama without making more for ourselves.
LIKE and SUBSCRIBE and above all - Happy Flying!
#drone #painless360 #review

Опубликовано:

2 июн 2024

Ссылка:

Скачать:

Готовим ссылку...

Добавить в:

Мой плейлист

Посмотреть позже

Комментарии : 48

@deadbyteDrones Год назад

Way to go, Simion! For most users, Std (Standard) Telemetry Ratio would suffice (it'll adjust depending on what RF Mode or Packet Rate you're using, to ensure you have sufficient update rate for your telemetry without sacrificing your RC Packet send rate) There's Race Telemetry mode for Racers, which stops Telemetry sending once you're armed, maximizing the entirety of the packets for control. Worst that could happen with insufficient Telemetry ratio: Sensor Lost. EdgeTX 2.8.0 with internal ELRS modules have eliminated the Telemetry Lost/Recovered call outs, for me at least.

@MCsCreations Год назад

Really fantastic information, Lee! Thanks a bunch!!! 😃 Stay safe there with your family! 🖖😊 Merry Christmas and happy new year!

@litterbug4023 11 месяцев назад

Just jumped on ELRS and ran into this exact thing on my first use case with ArduPilot! As always, awesome job keeping us informed on all the latest!

@jwc4520 Год назад

Just a quick line to wish you and yours a Merry Christmas, and prosperity in the new year.

@pierholtrop5432 6 месяцев назад

Very informative channel !

@beefybeef1326 Год назад

Very interesting. Thanks for this video. I actually had this jerky issue while running the yaapu script on the RTF version of the xiake800. As soon as i tried to change to 100hz-full from the default 333hz-full there was alot of lag on yaapu.

@afterburnerrc6333 Год назад

Hey, first off Merry Christmas! This is a great video, I am curious, for the Telemetry Lost reporting couldn't you just set the Telem Ratio to Std (1:128) and let the system adjust itself or is that not correct?

@Painless360 Год назад

That would be step one. Issues arise with certain telemetry heavy applications.. Happy flying

@petrokey Год назад

Finally someone from ExpressLRS team! Can you please advise if there is any document on elrs phisics/protocol? How does it handle interferrence, packets structure, etc...

@Painless360 Год назад

If you want that level of detail I would strongly advise you to get involved with the project via Github as a lot of the detail is in the code. Best of luck

@petrokey Год назад

@@Painless360 You've gave me the same answer as Joshua ;) I've already posted few questions there, entered the discord etc... however I'm still looking for easyer way of getting info :)

@JaWizard 6 месяцев назад

So would I be safe with 333hz with 1/32 telem packet? Tx power 500 is a good middle ground?

@natlozzz Год назад

Hello there, question: Will there be a 868 MHz and/or a 900 MHz version of these transmitters for European / US users?

@Painless360 Год назад

Of enough ask RadioMaster, maybe..

@pav2k Год назад

Why does GPS data seems like it doesn't fit the ratio? It updates much slower than something like RSSI

@blooskyy7 2 месяца назад

Great topic. I'm currently having an issue with one of my ELRD RX where only 10 telemetry sensors are received on the TX (TX16S MII),. Do you possibly know why this may be? I've tried two different rx with the same result. FYI the FC is a Speedybee F405 mini v3, running Rotorflight v2 (latest version).

@Painless360 2 месяца назад

I'm not familiar with Rotorflight yet, so I'd assume it's something to do with it... Happy flying

@RCwithSohel Год назад

Is there any way of using the telemetry data received from ardupilot+elrs rx setup to use it on a pixhawk based DIY ardupilot antenna tracker on ground? Basically feeding the pixhawk of antenna tracker, the required telemetry data from a ardupilit+elrs rx to operate Is there any way of doing so?

@thirdpartycookie Год назад

I wanted to build the same. But the only way to acces the data is to try to get the telemetry directly out of your transmitter

@Painless360 Год назад

Check out github.com/ExpressLRS/ExpressLRS/discussions/1352

@thirdpartycookie Год назад

@@Painless360 we will have to wait some time till we can access telem via wifi/Bluetooth

@carloujosephtorres2647 11 месяцев назад

Can we use an FrSky telemetry module like the FrSky LiPo battery sensor to an Express LRS Receiver. If yes, how will it be connected?

@Painless360 11 месяцев назад

Nope. Happy flying

@Rcfishingagadir Год назад

Hi which packet rate and telemetry ratio is best for rc long range fishing boat thanks. Im using jumper t pro...and matek pwm receiver..thanks

@Painless360 Год назад

Not sure for boats. I'd guess you don't need super fast resposes so a low packet rate would be the place to start. 100 maybe? Best of luck

@Rcfishingagadir Год назад

Ok thanks a lot . what about ratio....should i put std.

@Painless360 Год назад

I'd start there and follow the advice in the video... best of luck

@nestwolfsteiner2292 Год назад

is it planned to have a MAVLink connection via ExpressLRS?

@Painless360 Год назад

Looks like it. See github.com/ExpressLRS/ExpressLRS/discussions/1352

@nestwolfsteiner2292 Год назад

@@Painless360 "full MAVLink" over ExpressLRS will be a game changer for many applications, e.g. camera drones or autonomous VTOL applications

@Painless360 Год назад

So would SBUS ;) happy flying!

@maixechrys6264 4 месяца назад

Hello community! Is it possible to get the battery data from an Frsky x9slim+ receiver using a Mlvss Mini Lipo Voltage Sensor connected to the smartport? Is the function lost when transitioning to Elrs?

@Painless360 4 месяца назад

ExpressLRS recievers have something similar in the way... Stay tuned

@maixechrys6264 4 месяца назад

@@Painless360 Well Lee, thing is that im currently switching to Elrs using the r9 tx and r9slim rx. Trying to set it up using sbus but the telemetry from s port is lost and the voltage sensor no longer provides telemetry. Am i doing something wrong or the sport sensors loose functionality when using Elrs? Pixhawk is receiving sbus fine through the rc port, and the receiver is supposed to transmit s port data right?

@Painless360 4 месяца назад

If you are talking about when you flash an R9M receiver with ExpressLRS, then I don't know. I'm not aware that using Smartport sensors will work. Telemetry from the flight controller via CRSF should work fine so I'd use that.

@maixechrys6264 4 месяца назад

Yes exactly im talking about r9 slim+ flashed with elrs, its quite a pitty as I have not found any other reliable way to measure total as well as individual cell voltage to prevent any bad battery misshaps. Is there any other way to measure individual cells? It was convinient having many spare MLVSS laying around.. @@Painless360

@Painless360 3 месяца назад

Telemetry from the flight controller via CRSF should work fine so I'd use that

@madladdan Год назад

Can ELRS TX output Telemetry via wifi? (Mavlink)

@Painless360 Год назад

I've not seen that done... Best of luck

@madladdan Год назад

@@Painless360 Thanks

@neilfpv Год назад

I was unlucky switching to ExpressLRS Happy Model. I encountered failsafes less than 100ft. HappyModel helped and tried their best to troubleshoot the issue but they can't figure it out. Inside the house, I am able to arm it. However once I am outside the house(temps below 15-20f), I am unable to arm it. They wouldn't connect. Sometimes I am able to arm it and fly but it will failsafe within 100ft. The ELRS developers also helped me debugged the issue and they think the issue is on hardware specifically the clock. It is documented very well in 2 or 3 of my youtube videos. I just restored back my TBS crossfire hardware.

@Shauny_D Год назад

me too

@JustinHunnicutt Год назад

There's a big section about that on the ELRS website and it shows which combinations need to be avoided and also in a move to try and mitigate that a lot of happy models new stuff have temperature controlled oscillators. But I've seen essentially that same comment multiple times that someone would switch over to elRS have problems and go back to crossfire. It seems like if you value simplicity or reliability untested ELRS setups and especially anything happy model is probably never going to be able to compare to things like TBS crossfire or TBS anything.

@christhorney Год назад

I have a happymodel ep1 and ep2 and have had no issues with a jumper t pro internal elrs, I went out to 1.5km today at 250mw I was at between -85 and -94bdm when I did a circle to check antenna placement, on the ep2 ceramic thing I went out to 1.2km and was touching -100dbm and it's really not well placed

@neilfpv Год назад

@@christhorney Nice! The Happy Model engineers and ELRS Engineers worked with me and they can't figure out for a week why I was having issues. The only last thing they can think that's a possible culprit is the crystal chip and the very cold weather. They said it could be from a bad batch.

@christhorney Год назад

@@neilfpv is that in the receiver or like the transmitter module? i went out to 2.5km today its truly amazing whats possible i feel like im just scratching the surface lol. if you already have crossfire gear then its not like thats terrible lol i just had the emax d8 before this so you can imagine how amazed i am lol, its terrible your having issues thats the problem when you have great software and technical but manufacturing seperatly, hopefully your crossfire works flawless?