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    M5Stack Mini Can Termination resistor issue

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    • J
      Johnmholmes
      last edited by

      The M5Stack Mini Can does have a built in termination resistor. The schematic shows R1 as 120 ohm. If this is fitted to every unit on a Can bus IE more than 2 we will end up going out side of the spec for approximately 60 ohms. One could attempt to remove the small SMD resistor from the board which I think is the one high lighted in this picture.

      (Screenshot 2025-02-15 095511.jpg

      Can someone confirm this is the correct one. It would have been good if the unit had a jumper so you could enable it if required. I know a lot of board on the internet have also followed this trend of adding the terminator resistor.

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

        Hello @Johnmholmes

        given that there is only one 120 Ohm resistor listed in the schematic I'd say that is the one. You should also be able to follow the traces from the resistor to the connector to confirm.

        Please note: I do not have the M5Stack Mini Can unit so I cannot confirm / measure it myself.

        Thanks
        Felix

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