PiGRRL Gamepad
The PiGRRL Gamepad PCB is designed for use in portable gaming projects like the PiGRRL 2 but it's basically a set of buttons wired between ground and select GPIO.
All button inputs should be configured with their corresponding internal pull-ups. Note that there are no protection circuitry, so be sure not to drive the GPIO high and short them to ground via button actions!
Details
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