Arduino Press Buttons
Only arduino pro micro have Gamepad native support, if you want to get it recognized as a controller within the game, make sure to use arduino pro micro. Otherwise only SimHub will see inputs
Any momentary switch will do the trick.
On nano avoid A6, A7 as they don't have digital capability. And D13 due to arduino on board led
Set how many buttons are wired and pins used then upload the sketch
Buttons can be used in simhub for any arduino board, or be seen as Gamepad for arduino micro (when enabling the option)