@Rawdha-R @tom

SO, I used ffplay and was able to see the stream successfully. A quick google about vlc/rtsp brought up many issues in the community after some recent updates. I am not sure how I was able to do this before and cannot now, but I did find a fix for windows

https://www.reddit.com/r/reolink/comments/yzhlxp/found_a_solution_for_rtsp_blackno_video_in_vlc/#:~:text=In VLC%2C under the Tools,video stream in VLC player.

In case that link is ever deleted, I will paste the instructions here
"In VLC, under the Tools menu, go to Preferences (or Ctrl+p), open the Input/Codecs tab, and at the bottom in the Network area, the selection for "live555 stream transport" should be moved from "HTTP (default)" to "RTP over RTSP (TCP)". This worked, I can now view the video stream in VLC player."

This resolves the RTSP stream for windows. Those config options are not available in the linux version of VLC but I did see some config options you can build VLC with. I did not venture too far down that path

@RSAUser1 you should not need to download any drivers to do the steps I listed, in fact I almost advise against it unless you know what you're doing. I certainly didn't and still don't. I found my workaround much easier. The idea of outdated drivers is a theory I have, but modalAI never confirmed if that was the case. Probably @tom or Travis could speak more to that

@RSAUser1 yeah i'd probably pass to @tom . The modem is seems connected, otherwise you wouldnt see wwan0 come up. Once I had access to AT commands I ditched QMI which I think is more or less a wrapper for those commands anyway.

@Alex-Kushleyev Alex, I am commenting this here so as to not clutter your main thread. To whomever contributed to the page in the docs, it is very well written. It is evident from the granularity provided that ModalAI has taken this seriously. I appreciate you guys publishing your initial findings and I hope for continued success.

If it is of any interest, my good friend has spent years in industry working as an EMI specialist. He is working through his PhD now and is always looking to take on fun challenges. If you are interested in him as a consult, let me know and I can connect you. I have Travis' email from a while back so I will follow up there too with some more personal information.

@colombe-ai There is a long-standing GPS issue ModalAI is working to solve. Depending on when you purchased the drones, there was a disclaimer on the purchase site. You can see in my last commented on post one of the devs promised status in the coming days. There is another post here where people have made mounts/shielding to reduce EMI, which is almost certainly the issue.

@Alex-Kushleyev It is disappointing to see some tickets—like this one—go unanswered for many weeks and require bumps, especially when this forum is pitched as the de facto way to contact the team. That said, I understand this is probably a stressful situation for the company. I appreciate you chiming in and look forward to hearing from you!

@groupo sorry that was a bit terse. I meant to say I would like to know if there is updated status. TIA

@groupo bump? Looking at purchasing new drones and would like updated status

@kgn-mdlai bump

@Capstone-0 Our drone crashed and we ditched our project but has ModalAI added support for AT commands for the 5G (I assume EM9291) modem yet? If not, I figured out how to do it and posted instructions here

https://forum.modalai.com/post/19131

Once you get those commands, you can set up a service to query the modem for its signal strength and pump the output somewhere. Someone else in that forum discusses it a bit.

@bendraper One idea I had is to change the bands of the modem so that it will only search for signals on specific 5G bands. I did this with my modem for LTE B3 through the use at AT commands. I linked a post where I provided a way to use these commands on the drone

https://forum.modalai.com/topic/3738/monitor-sierra-wireless-5g-signal/11

I would go to Sierra Wireless website and download the AT command reference guide to understand how to use them. there are probably some other commands that could help you too, but the BAND one sticks out to me. Sierra also has a really good forum I would recommend.

@tom , this is the 3rd/4th I've linked the AT commands post to forum users. Is there any expected AT command support for the EM9291 like with previous modems? It is a functional workaround, but could save people a lot of time/trouble if it was available upfront. It really 'unlocks' the modem for more configurability, don't you think?

@buem799 Hi, no worries, I am also very new to this space. ffplay is separate thing, part of the ffmpeg program, not something inside VLC. This is the reddit link that I posted in the thread I listed above

https://www.reddit.com/r/reolink/comments/yzhlxp/found_a_solution_for_rtsp_blackno_video_in_vlc/#:~:text=In VLC%2C under the Tools,video stream in VLC player

If you read through it, the fix was for a windows machine, which I was using at the time. It states further down in the reddit post that live555 support was removed in newer versions of ubuntu (linux operating system). From your screenshots, it looks like you are using ubuntu, so it could make sense that VLC may not work. I believe it is more a ubuntu issue rather than VLC. Don't try to dig into that, especially if you are new to linux. I would install ffmpeg on your system and try to access the RTSP stream using that. I just asked ChatGPT for the commands to do that and will paste below:

sudo apt install ffmpeg

Id recommend asking Chat how to access an RTSP stream using ffplay, or read the documentation

The other thing you could do, if you had a windows laptop, you could connect the windows laptop to the drone wifi and try to access the RTSP stream via VLC on windows and do the fix included in the reddit link

@Eric-Katzfey @buem799

@buem799 I had some RTSP VLC struggles a while back. Check out the link I posted at the bottom of this post here

https://forum.modalai.com/post/19409