Expanding GPIO pins

This topic contains 2 replies, has 2 voices, and was last updated by Profile photo of mexeroser mexeroser 1 year, 12 months ago.

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  • #100897
    Profile photo of mexeroser
    mexeroser
    Participant

    Hey guys!
    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)

    My question is: If my assumption is right, and the perma proto board that i bought does not work, what would help/ might this be something worth buying:
    https://www.abelectronics.co.uk/products/3/Raspberry-Pi-Model-A-and-B/18/IO-Pi

    Thank you in advance, i really appreciate help from anybody!

    #101099
    Profile photo of midimax
    midimax
    Participant

    ControlBlock ? (with some additional features)

    ControlBlock: Power Switch, Game Controllers, and I/O for the Raspberry Pi

    Or if you want to build it completely yourself using MCP23017 like ControlBlock or the “IO Pi” from your second link does is the correct way.

    #101154
    Profile photo of mexeroser
    mexeroser
    Participant

    Thank you very much!

Viewing 3 posts - 1 through 3 (of 3 total)

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