Im trying to build a Rpi arcade at the moment. So far so good, i got one joystick and some buttons working.
The problem i got is: I would really like to build it for 2 players, but I would not have enough GPIO pins.
I bought this https://www.adafruit.com/products/1171 at first, but actually that cannot work because it literally doubles the gpio pins, so that if i trigger one button for example, it would trigger the one connected to the pin right next to it as well. (correct me if im wrong, im a total noob in this regard)