Hi red_car.
Yes the buttonbox is connected to the arduino and both buttons and encoders work when testing them using the serial monitor of arduino ide and the joy.cpl (joystick configurator) app of windows.
But for the encoders, they are not recognized in the joy.cpl app, as well as in the simulator itself.
I think i may have figured it out. I think i need to add a joystick.button command somewhere. Still figuring it out. 