I am wondering if I can write a program to keep sending telemetry to Qgroundcontrol in mavlink format to show that on the map without connection to aircraft. Is that possible, does anyone have experience about that?
Many thanks if someone can give me a little guidance!
Should be pretty easy.
Basically, you’ll need your program to report itself as a vehicle, then send the relevant telemetry you want to display.
You will probably need to send a heartbeat, some initial “nice-to-meet-you” messages and then stream your telemetry.
You should head to mavlink.io to find documentation, and maybe a ready to use library in your favorite programming language.
Regarding the specific minimal messages required to display telemetry I can’t help you, maybe have a look at QGC’s source code.