Adafruit pigrrl 2 0 custom gamepad pcb only adafruit 3015 p the adafruit pigrrl 2 0 custom gamepad pcb powers up your pigrrl build by removing the need for point to point wiring for the buttons and switches the board needs a 40 pin header cable to connect all the gpio signals 2 x wires for the power and 4 x wires for the left and right shoulder buttons that s all the wiring you need to connect 12 x switches as you ll see from the tutorial there s still quite a bit to do but the gamepad