In order to create an overview of how the joystick will work, we have created a simple drawing, which illustrates the proces.
The question is being send from Arduino 1 to Arduino 2, which the joystick is connected to. The options are listed on the screen, and the joystick is being flipped according to the answer in one of the four directions in X-Y-coordinates. If ,for an example, A is chosen for an answer, the joystick is flipped 45 degrees upward and the answer is being saved on the Arduino 2.
Arduino 2 then sends the answer back to Arduino 1, where the answer is being registred.