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    Cardputer & Sensors

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    • B
      Bipman
      last edited by

      Hi all

      Not sure if this is the correct forum but I have had my Cardputer delivered and wondered if I could use my Core2 and 3 sensors with it? It doesn't seem to have a Port A,B etc.

      Steve

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      • felmueF
        felmue
        last edited by

        Hello @Bipman

        the Cardputer does have a Port A on the side like most cores. See documentation here.

        Thanks
        Felix

        GPIO translation table M5Stack / M5Core2
        Information about various M5Stack products.
        Code examples

        1 Reply Last reply Reply Quote 0
        • B
          Bipman
          last edited by

          Hi

          Some sensors only use port B,C etc. so not sure how I would connect those.

          Steve

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          • felmueF
            felmue
            last edited by

            Hello @Bipman

            by default Port A is meant for I2C, but it can be used for I/O (Port B) or UART (Port C) as well.

            Note: But please be aware, that it can be only one type of port at any given time. Also, since its default use is Port A (I2C) there are internal pull-up resistors (10 k) in place on both lines which might have a negative effect when used in a different mode.

            If you need Port A and Port B at the same time there is the PbHUB unit which can be used to connect some of the Port B units.

            If you need all three types of ports (A, B and C) together then I am afraid M5Cardputer is the wrong device to use as core. There are simply no more GPIOs available for a dedicated Port B and/or Port C. Please see schematic here.

            Thanks
            Felix

            GPIO translation table M5Stack / M5Core2
            Information about various M5Stack products.
            Code examples

            1 Reply Last reply Reply Quote 3
            • B
              Bipman
              last edited by

              Thanks for the replies everyone.

              1 Reply Last reply Reply Quote 0
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