TL;DR — How can I communicate with my APM 2.5 in a HIL simulation FROM A DIFFERENT COMPUTER using the 3DR radio (wireless telemetry interface)???
I noticed here that I "cannot connect via the radios when [my] APM 2 is also connected via USB [because] they share the same port"... and to use the APM 2.5 in a harware-in-the-loop (HIL) configuration, I must be connected via USB (right??)... so:
HOW can I communicate via 3DR radio with my APM 2.5 in a HIL (connected via USB) if they use the same COM port?
I want to use the APM 2.5 in a HIL simulator (FlightGear) because I do not have an airframe... and I want to "control" the APM 2.5 from a DIFFERENT system than it is using for the HIL...
Any suggestions on how to accomplish this???
For APM2.5 you can connect your radio through the UART2 on the side of the board, it's part of the single file headers.