opentx
OpenTX custom firmware for Transmitters (by opentx)
ExpressLRS
STM32/ESP32/ESP8285-based High-Performance Radio Link for RC applications (by AlessandroAU)
Our great sponsors
| opentx | ExpressLRS | |
|---|---|---|
| 5 | 111 | |
| 2,022 | 3,072 | |
| 0.7% | 3.7% | |
| 9.1 | 9.1 | |
| about 1 month ago | 6 days ago | |
| C++ | C++ | |
| GNU General Public License v3.0 only | GNU General Public License v3.0 only |
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
opentx
Posts with mentions or reviews of opentx.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2021-06-18.
- RxBt on radio showing different voltage than OSD
-
Are FLYSKY systems any good in 2021?
Yes. that Jumper T12 Pro is the one I have, and I highly recommend it! I personally had no problems with it at all, but I did have problems with the (much older) Jumper T16, but it seems they learned from their earlier mistakes and the T12 Pro was really perfectly fine for me. The reason I'm not using the T16 is that it's just so much bigger, and frankly the color screen seems like a nice idea (and it is), but it uses a lot of power (battery life) and is just harder to read is full sun light.All of thses transmitters (including FlySky) are some variation of "cheap chinese electronics", and the 'cheap' part is obviously the part we really like. The one problem I know of that it used to have was a software issue in OpenTX (related issues on Github #1 #2, if you're really curious). Basically, using voice output could stop it transmitting, which is obviously very bad (stuff falls out of the sky!), but has been fixed ages ago in OpenTX 2.3.8 (from about a year ago).
- I hope this is the right place, instructions say it should be in R9M ACCESS mode, but even after flashing the firmware to the r9m 2019 module, no such option appears. Transmitter is qx7 accst with r9m access mod, trying to bind to r9 sx
-
Setting Up An Auxilary Servo Controlled Gimbal
Oh man- that's way above my pay grade... I'm going to need some more experience before I can sort that out and it'll be a few days till I can even try since i'm travelling atm. Thanks so much for putting it together though! Pursuing it further- I had had made some progress on github. I loaded this config successfully onto my Taranis and yet I still don't know how to properly utilize it. Ahh well. I'll keep you posted if I ever succeed!
- New to the hobby, made a bad purchase, need help.
ExpressLRS
Posts with mentions or reviews of ExpressLRS.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2023-06-30.
-
ExpressLRS-Configurator rant
Just put the firmware builds under https://github.com/ExpressLRS/ExpressLRS/releases
- Release ExpressLRS V3.3.0 · ExpressLRS/ExpressLRS
-
Opinions Please
I didn't really find any reference material for setup, you can see it mentioned at #2060 here.
- Release ExpressLRS V3.3.0-RC2 · ExpressLRS/ExpressLRS
-
not enough space
For receiver Zlyden3D said flashing 2.0 then 3 through Betaflight passthrough worked for them.
-
Is it possible to connect elrs Jr module to rc car controller?
I think the controller is only going to have PPM output at best. There's a feature request for ppm input marked "not going to happen", so I think you are out of luck. https://github.com/ExpressLRS/ExpressLRS/issues/421
- Jumper T lite Elrs script not loading.
- Using a 868MHz system in North America
-
Connect Arduino nano to expresslrs transmitter
All you need to do is start sending Channels packets out a UART at 115200 baud and the TX will fire up and start sending them at whatever packet rate it is already configured for. You'll need to disable UART inversion on the TX though because external modules are half-duplex inverted (stupid legacy stuff!) The protocol I've documented here: https://github.com/ExpressLRS/ExpressLRS/wiki/CRSF-Protocol
- Release ExpressLRS V3.2.1 · ExpressLRS/ExpressLRS
What are some alternatives?
When comparing opentx and ExpressLRS you can also consider the following projects:
DIY-Multiprotocol-TX-Module - Multiprotocol TX Module (or MULTI-Module) is a 2.4GHz transmitter module which controls many different receivers and models.
edgetx - EdgeTX is the cutting edge open source firmware for your R/C radio