Hi!
I have more or less the same setup for my controller, only difference is that I am reading the serial (IBUS) signal instead of reading the PWM. However, FPV Freerider does not recognize my arduino micro as a usb-device. Or something similar.. There is no stick response in the calibration setup. It used to work before, and works in other simulators (Velocidrone). It is also recognized as a USB-game controller in Windows, where all axis behave as expected.
Would love to this controller in FPV Freerider as well, as it runs a lot better on my lower end computer than other simulators.
I have uninstalled vJoy and SmartPropoPlus which I used with an older audio trainer cable.
Is there any other known fixes out there? Otherwise it would be great if there was an option for choosing which USB device to use for input, in case there are more devices connected