Raspberry Pi4 GPIO Extensions

Engineering 🇬🇧
ranmish
2021-02-01
2021-02-02

  • ranmish - 2021-02-01

    Hello all,

    I wanted to start a new project programming the Codesys Runtime on an RPI.

    The only problem is that I have to able to expand th GPIOs as it is just not enough for. I was not able to find and info on the net if CoDeSys supports different kinds of GPIOs extensions.

    Furthermore I was curious if any of you know a book or some serious tutorial on the subject of CoDesys generally and RPI with CoDeSys specifficaly.

    Thank you all!!!

     

  • ojz0r - 2021-02-02

    You might want to look into SPI/I2C for GPIO expander chips, like the MCP17S23.

     
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    1

  • ranmish - 2021-02-02

    Thanks for the quick answer. Do you know if Codesys supports this type of hardware?
    is there a XML file for it?

     

  • ojz0r - 2021-02-02

    There should be an example project in the installation. Otherwise i think there are examples in the drivers section of codesys forge.

     
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    1

    • ranmish - 2021-02-02

      Thank you very much

       

    • ranmish - 2021-02-02

      Thank you very much

       

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