Feature Request: Blutooth connectivity for simple telemetry data

[jelehmann]

I politely apologize if this is not the appropriate place for an idea, suggestion or feature request.

I've been wishing since my first DJI FPV flights that I could see the quad's telemetry data directly on my smartphone. More specifically, the serial quad data packages (srt file data) coming into the goggles would be passed through to a simple Bluetooth module, and the Bluetooth module would send that data to a connected Android or Apple smartphone. The data could be received and stored there with a simple smartphone app.

Use case:s

• GPS data would be displayed in real time on the smartphone: Where exactly is the quad at the moment? The GPS data could be forwarded directly to Google Maps. The flight path could be displayed as well. Where exactly is the last received GPS coordinate and where is it likely to have crashed based on the flight path? So: no more copying coordinates from your glasses and typing them into Google Maps.
• Lost eye on Li-Ion voltages? Configure an acoustic alarm on your smartphone.

Would that be possible?

[bri3d]

We've discussed this idea quite a bit. A few notes:

• Goggles V2 support USB OTG, so this could be done by plugging in a USB Bluetooth adapter, IF we could get the Linux kernel drivers for one to work. Unfortunately we have not yet been successful building kernel modules for the DJI kernel.
• Goggles V1 do not support USB OTG, so that's a dead end for Goggles V1 and an alternative route would need to be pursued, for example soldering to an internal debug UART or some kind of trick with the audio out jack.

This is also a fairly niche use case as most DIY users get these same functions through their radio Tx, but that doesn't mean it's not still worth pursuing.