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Prop Audio with this combo??
#1
Hey pros,

I have an audio question.  I would love to get audio of what my props are doing through my headset while flying FPV.  The problem is that I don't know enough about FPV audio systems to figure this out on my own and haven't had much success with searching the topic on google(I learned about smart audio though).

Gear;

HGLRC F4 V5 Pro FC/VTX
Foxeer Monster V2
Eachine Goggles Two with audio out.


The monster has one audio out line (from what I understand is a built in mic).
The F4 V5 doesn't say anything of relavance dealing with how ports work for noobs in their 6 page manual, but I have a bunch of spare ports.
The Googles two don't say if the audio out jack only applies when using an hdmi in.


I'm kinda lost.

Any insight would be great.

Jos325
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#2
I don't see an audio input on that flight controller, but it's possible that the VTX module that's soldered onto the flight controller does have an audio input on one of the pins...

And so it does! See: http://www.sinopine.com/upload/file/1499506037.pdf

It would seem that pin 4 on the module is the audio input, but I've read that others have tried the input without success. It may be that the input is pulled to ground on the flight controller (which is what you should do with an unused audio input).

There may be a visible track going to that pin. If there is, check to see if the pin is connected to ground with your multimeter. If that's the case then you should be able to cut the track and connect the Monster's audio wire directly to the module.
[-] The following 2 users Like unseen's post:
  • Jos325, Tom BD Bad
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#3
(25-Sep-2017, 06:17 AM)unseen Wrote: I don't see an audio input on that flight controller, but it's possible that the VTX module that's soldered onto the flight controller does have an audio input on one of the pins...

And so it does! See: http://www.sinopine.com/upload/file/1499506037.pdf

It would seem that pin 4 on the module is the audio input, but I've read that others have tried the input without success. It may be that the input is pulled to ground on the flight controller (which is what you should do with an unused audio input).

There may be a visible track going to that pin. If there is, check to see if the pin is connected to ground with your multimeter. If that's the case then you should be able to cut the track and connect the Monster's audio wire directly to the module.

Thanks Unseen!!  It didn't even occur to me to go straight for the VTX data sheet.  I will investigate this pin(through dissection) tonight after my post-work flight session.  I posted a msg on their site too.
[-] The following 1 user Likes Jos325's post:
  • unseen
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#4
(25-Sep-2017, 01:00 PM)Jos325 Wrote: Thanks Unseen!!  It didn't even occur to me to go straight for the VTX data sheet.  I will investigate this pin(through dissection) tonight after my post-work flight session.  I posted a msg on their site too.

Hi jos325,

Was your investigation successful?
Did you manage to get the audio link from hglrc f4v5pro?
Reply


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