Long range UAV link 100mw for 60KM was designed and tested

No not really,sometimes slow to upload,have you uploaded the latest tower I think it is 5.7 now,can check latter

I’m using a laptop, not a tablet or cell phone, so I have used Mission Planner, primarily, but also Q Ground Control. I will try my cell phone with Tower to see if there is a difference.

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just checked Kenny it is Skydroid Tower 5.8 please give that A try and look forward to hearing your results and good luck

The Skydroid Tower app did upload the full 400+ waypoint file successfully. It was very slow and there is no progress indicator, but it eventually announced that it was successful. I then downloaded in Mission Planner over my 3DR radios and saw that all waypoints were present.

But, in Mission Planner, just simply receiving normal telemetry, I have a ton of lost packets happening. (You click “Stats…” in the upper right of the screen to see.). I posted about this and posted a short video at Errors uploading missions. So, how do I get support on this type of thing?

Is anybody else using the M12L with Mission Planner who can try this?

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I’m no RF expert nor a programmer but I think you need to consider that Skydroid uses Bluetooth vs. the 3DR radio that has a higher bandwidth. I would definitely recommend that if you’re uploading that much, use the telemetry radio, or better yet a USB cable for the highest throughput and accuracy it can muster.

Good luck.

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I appreciate that, Matthew. I uploaded it to this post: Errors uploading missions (Post #4).

Also, if you are using Mission Planner, I am curious what the “stats…” window shows for you just when you are monitoring the system, not uploading anything. Mine is showing a lost packet about once a second.

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Thanks for jumping in with thoughts!!! Bluetooth is used between the PC and the handheld “remote control” and then it is a 2.4GHz signal of some type from the remote control to the receiver on the vehicle. From what I can find, even the older bluetooth 1.2 or so had a bit rate of 1 Mbps and in practice could transmit 700 kbps, so that should not be the trouble. The 3DR radio is only about 64 kbps and the serial connection to each end is running at 57.6 kbps. So theoretically, the Skydroid should be capable of a lot higher speed.

But, I don’t really know. It could be a Bluetooth issue.

You do make me think… I need to hook up via USB instead of Bluetooth to see if that changes anything. I will do that!
Thanks.

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Hello Kenny, I try to upload your mission by usb and works perfect, then I delete the mission and upload from the dron to check and no problem with Mission planner, I try to upload a video to show you. M12L

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Thank you for doing that. I will try USB later this evening, in case it is somehow related to Bluetooth. I also I have a complete 2nd system that I bought a few months ago for another project. I may take it out to see if it gives any different response.

If you click on the “stats…” link in the upper right corner of the screen, do you see many lost packets?

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https://www.dropbox.com/s/vfpj7lyc0msigrx/20190811_201354.mp4?dl=0

this a short vers, then I retry erasing the mission and uploaded from drone.

upload 400+waypoint ,with usb or Bluetooth?If missionplanner or QGC gets the confirmation information of flight control and then sends the next waypoint, the problem will be solved. Because the bandwidth of the radio is much lower than that of Bluetooth and USB.

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Hello , I have the same tablet and was curious to know if fit also in horizontal position. I have a Samsung S2 9.7 maybe is the same . Can you help me ?

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Yes Domenico, its fix perfect and you can rotate in any position.

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Great ! The radio is very interesting… Thank you

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This system looks very interesting! If I wanted to connect a Sony A6000 instead of the FPV camera is it the serial converter I need or would using Gstreamer with a raspberry be good way to go?

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Its a great system but you need to wait on Cao or Ricky to answer your question

@ausphoto there are two systems discussed here the M12L and the T12.
The M12L is the first unit that came out to the public and it used analog video. Basically a standard 5.8ghz transmitter. So you could easily connect your sony to that.

The T12 uses digital video and the camera is a serial output camera. So currently there is no way to connect up a sony to it so Gstream would be the way to go. Unless you know how to use a raspberry to convert analog video to digital serial video. Then you could use the Sony or any other camera for that matter.

Hope that helps.

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@rickyg32 Thank you for the info it helps a lot. So I am thinking this is where a hdmi to csi bridge board comes in. https://auvidea.eu/b101-hdmi-to-csi-2-bridge-15-pin-fpc/

  1. Connect camera via hdmi to csi bridge
  2. Connect hdmi to csi bridge to raspberry
  3. H264 video from raspberry to T12 receiver (via a wire splice?) This section I am not so clear on.
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The camera is serial…transmit and receiver lines.(tx-rx)
Not sure you can splice in as suggested.
T12 is looking for that serial type connection.

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This is the part I am not sure of. I am thinking that the hdmi to CSI 2 bridge with a 15 pin ribbon (slots in where the Raspberry camera normally goes) does the h264 format conversion which is the serial format required? Then I am assuming the signal needs to be connected to the T12 receiver link. In the Skyroid T12 instruction video


at 8.10 it shows the FPV camera being connected to the receiver. If using a raspberry - how would one connect?
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