I'm trying to understand how one software such as Mission Planner or APM2 or QGroundControl works from beginning to end.
So, each application/software source code does not directly execute passing mavlink protocols, correct?
Are the mavlink protocols embedded in the library packages, which are being used in the program?
If so, I still can't find any mavlink protocol on each command, such as isArmed() or isConnected(), in the library source code.
Essentially, I want to create my own java library with mavlink so that I can create my own ground control station software which is not tracked by a company, such as DJI.
Thank you.
Perhaps you'll find dronefleet/mavlink useful. It allows reading/writing mavlink messages and provides an abstraction layer from the low-level stuff.
Disclaimer: I am the author of this library.