While similar to the “2 PCB in one joystck” thread question its not the same.
I need to know if this will work.
I have a 2 player control panel: 1 joystick & 7 buttons for each player.
This is going to be interfaced with 2 hacked dreamcast gamepads via a DB25 connection.
I had planned on only having one ground wire chained to every button on the CP.
So thats 22 signal wires and 1 ground wire.
The question is, when using 2 gamepads can the ground be common between them? Or will I have to use another one of the DB25 pins and run a separate ground for player 2 controls?