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    CORE2, LAN Module W5500 with POE and RS-485

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    • H
      hbenkel
      last edited by

      Hi,
      The RS-485 board of the LAN Module W5500 with POE works fine only
      if the PORT.A.I2C of the CORE2 is not used. If the external I2C port
      is in use the RS-485 communication looses the RX signal, because
      of the G33 asignation for both purposes, RX and PA_SCL.
      Somebody knows how to fix this?
      Thanks!

      1 Reply Last reply Reply Quote 0
      • felmueF
        felmue
        last edited by

        Hello @hbenkel

        the only way I see is to rewire RX to an unused GPIO. Maybe this GPIO overview I've put together a while back will help you.

        Thanks
        Felix

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

        H 1 Reply Last reply Reply Quote 0
        • H
          hbenkel @felmue
          last edited by

          @felmue Thanks Felix for the reply. I wired the pin 27 for RX and now both RS-485 and I2C works fine.
          Regards

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          • felmueF
            felmue
            last edited by

            Hello @hbenkel

            you are welcome. I am glad to hear you got it working to your liking.

            Happy Stacking!
            Felix

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

            1 Reply Last reply Reply Quote 0
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