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FPV Video --> TX16s LCD
#1
So I've got a project:
1. Get video receiver output
2. Display it to the TX16s LCD
These are the resources I have so far, but they are a bit technical:
http://martin.hinner.info/vga/pal.html
https://www.rcgroups.com/forums/showthre...ic-diagram
https://www.nxp.com/wcm_documents/techzo...logies.pdf
I guess my current thought is to use a NTSC decoder chip, put that thing into a MCU (probably STM32), scale, resize, and process the video to then be displayed on an LCD.
If I'm not mistaken, this is basically just making the electronics in FPV goggles.
I know that people here are much smarter, and have much more experience in this stuff, and I am asking not so much for a ready-made solution, but rather, guidance and direction. Any help would be appreciated! Thanks!  Smile
If it ain't broke, DON'T FIX IT!
My YouTube FPV Channel
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  • hugnosed_bat
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#2
Before we even get into the technical details of any of this, the colour LCD screen on most of these newer radios are just not bright enough to view in daylight.

Even a good quality HD LCD screen can struggle without a hood in daylight.

Its a cool concept you are pushing for here and TBS did try this with their Tango 1 but unfortunately its not for everyone.
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  • raspberrypi33
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#3
i like the project :-) nothing needed, but nice :-)

i cant help, im here for watching your progress :-)
what resolution does the screen have? as the images for modules allows just very low resolution, what would be possible on the fullscreen?
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  • raspberrypi33
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#4
(28-Aug-2021, 11:21 AM)kafie1980 Wrote: Before we even get into the technical details of any of this, the colour LCD screen on most of these newer radios are just not bright enough to view in daylight.

Even a good quality HD LCD screen can struggle without a hood in daylight.

Its a cool concept you are pushing for here and TBS did try this with their Tango 1 but unfortunately its not for everyone.

I think my main thing is just kind of a proof of concept. Also, then spectators can see something...maybe  Big Grin
Plus, it's cool. That's the most important part!  Smile
If it ain't broke, DON'T FIX IT!
My YouTube FPV Channel
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  • hugnosed_bat
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#5
(28-Aug-2021, 02:32 PM)hugnosed_bat Wrote: i like the project :-) nothing needed, but nice :-)

i cant help, im here for watching your progress :-)
what resolution does the screen have? as the images for modules allows just very low resolution, what would be possible on the fullscreen?

Screen is 480 x 272. NTSC is 486 x ~440ish, so I guess we're kind of in a ballpark range.
If it ain't broke, DON'T FIX IT!
My YouTube FPV Channel
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  • hugnosed_bat
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#6
I'm all for neat projects, but as Kafie said you won't be able to see much of anything outside on that Tx screen. Those screens just aren't good in sunlight.

I would suggest a similar but different project : A Base station with a hooded LCD screen and antennas + batteries. This gives spectators something to watch, and gives you extra range of the base station antennas.

Just an idea.

As for your original plan, I am afraid I am no help there. Never cracked a tx16s open. Personally, it just sounds like too much headache for not enough payoff. That's why I suggested the base-station as a project. It will also come with headaches, but at least the pay-off at the end will be something more use-able.

Just my opinion on the matter. Good luck! You might want to try other forums not specifically for FPV quads, but for electronic projects. Electrical engineers would probably be a lot more help on this than FPV pilots.
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