Arcaduino rev.2 is finished.
The arcaduino code now supports a toggle switch that changes the function of the joystick. You can now choose between sending keys, or moving the mouse.
The buttons can also be programmed to be mouse clicks (this requires re-flashing the arduino).
I’ve ordered some parts, which should arrive in the next few weeks, planning is to build a prototype when everything has arrived. Stay tuned!