Using serial ports under Ubuntu 18

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    • #231463
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      When I attempt to communicate with serial devices using PowerShell in Ubuntu 18, I get an “access denied” message when I try to open the port.  I can create the port object with no problem:

      $port = new-object system.io.ports.serialport ttyACM0

      And I can verify the created port:

      Echo $port

      …yields all the specifics.  But when I try to open the port so that I can begin reading or writing:

      $port.open()

      …access is denied.  Is this a procedural error on my part, or a short-coming in the cross platform PowerShell itself?  I’ve tried this with onboard serial ports as well as USB to serial devices with no success.

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