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OSD Setups

Jackson T

Well-known member
#1
Hi all, I've been having a great time flying my scratch built 4 meter glider recently. It's heaps of fun to fly FPV, and I've recently been learning to thermal LOS with it. It would probably be hard to thermal it with FPV because it would be hard to notice the subtle changes in rate of sink/climb, so I started looking into OSD/telemetry. An audible variometer would be the best, but altitude OSD would be almost as good. The only problem is I have no idea how all that stuff works or how to set it all up. Could any of you OSD/telemetry users out there point me in the right direction please? I'm using the FT Marvel Vision II FPV goggles, a Quanum Elite 600mw vtx, and my radio is a Turnigy TGY-i6. I'm pretty sure the TGY-i6 can do telemetry, but I don't know if it can make audible telemetry noises for the vario. It's just an idea at this point, but if it doesn't cost too much I would love to give it a go. Any help would be much appreciated!
 
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Fluburtur

Cardboard Boy
#2
You could put a flight controller with inav in there, would give you all the flight parameters you want to know and it doesnt even require a gps since most of them have a baro now (at least all the matek plane ones)
Im not sure the flysky can do that however (the tgy i6 is just a rebranded flysky i6)
 

Jackson T

Well-known member
#4
I'm interested in this too but I'll probably just throw $ at it. I did find this on Banggood which sheds a little more light on the problem. A plus is that this one comes with the pin outs for plane servos. I've got a FlySky too so I'll try to do a little more digging on that.

https://www.aliexpress.com/item/400...VoD2VMv33EhjjBicz4kaAug-EALw_wcB&gclsrc=aw.ds
Thanks! Would I be able to use that to get altitude OSD in my FPV feed? Looks like a pretty good price. Would connecting the servos to it allow me to use it for stabilisation/auto level?
You could put a flight controller with inav in there, would give you all the flight parameters you want to know and it doesnt even require a gps since most of them have a baro now (at least all the matek plane ones)
Im not sure the flysky can do that however (the tgy i6 is just a rebranded flysky i6)
Thanks for the reply. I no absolutely nothing about this stuff, what does the flight controller do in a fixed wing?
 

ElectriSean

Eternal Student
Mentor
#5
Thanks! Would I be able to use that to get altitude OSD in my FPV feed? Looks like a pretty good price. Would connecting the servos to it allow me to use it for stabilisation/auto level?

Thanks for the reply. I no absolutely nothing about this stuff, what does the flight controller do in a fixed wing?
The link posted is for a flight controller. It can do all sorts of things, from stabilization to auto leveling to autonomous flights and return to home, depending on what firmware you flash. You can get altitude to display from the built in barometer, or connect a GPS for full location and heading display.

Don't just plug the servos into the FC though, they must be powered separately or you will kill the board :)
 

Jackson T

Well-known member
#7
The link posted is for a flight controller. It can do all sorts of things, from stabilization to auto leveling to autonomous flights and return to home, depending on what firmware you flash. You can get altitude to display from the built in barometer, or connect a GPS for full location and heading display.

Don't just plug the servos into the FC though, they must be powered separately or you will kill the board :)
Thanks for the info, that really helps. Would the boards have a built in compass to display heading without need for a GPS? Would I be able to program a vario through INAV or something with the altitude info coming from the FC? Thanks for your help everyone!
 

ElectriSean

Eternal Student
Mentor
#8
Magnetometers require distancing from the power system, they are usually packaged in a combo unit with a GPS. You can get standalone ones as well, but I'm not aware of any FC's that have them built in.
 

Jackson T

Well-known member
#9
Would I be able to us this FC that @danskis linked for just OSD, with all stabilisation and other features disabled? I'm only after OSD at the moment, I can experiment with the other features later. Also, would I be able to program the FC to send a beeping signal through the FPV feed from the altitude sensor to act as a vario?
 
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ElectriSean

Eternal Student
Mentor
#10
You can use the FC for OSD only, but I don't think it's possible to make it behave as an audible vario. I believe that requires a standalone vario sensor set up through telemetry with the audio produced by the transmitter. I'm not familiar with your radio, so I'm not sure if it's capable or how to set it up if it is.
 

Fluburtur

Cardboard Boy
#11
I think some inav guys made a hack to use a pwm output to make sound but I dont think anyone uses that, opentx radios can do an audio vario but I doubt you can do it with the i6 even with modded firmware