Thank you Jeremy for fast reply. Using Teensy would be a easiest way but at the moment I’d like to play with the Arduino. I hope I can do sth creative based on yours and other people projects.
To analyze FGv1 code I’m looking for the hardware specifications. I found topic from 2014 in Firmware modding section you wrote:
I have no plans to release the whole board spec, but maybe in the future.
but if the project is closed maybe you can share now more details about connections, modules and other hardware stuff you used. It would be useful.