You can read the state of a button using Arduino and a few lines of code. The actual state is shown in the Serial Monitor window as 0 or 1, 0 meaning the button is not pressed and 1 that the button is ...

The Arduino board receives analogue inputs from the throttle lever, brake valve, reverser switch, and emergency control system, as well as digital inputs from various buttons on the panel, as well as ...

This is confirmed by the fact that the pin numbering on the Arduino schematic matches the pin numbering on the datasheet. In fact, even the label names partially match but the GPIO numbering is ...