Since I'm researching on this topic for quite a while, read all the old messages here in the forum it's probabely not something trivial like not being member of dialout. I am!!! But interesting is the output of a dmesg - command: usb 1-4.2: Manufacturer: FTDI [3303686.111831] usb 1-4.2: SerialNum…

Arduino Pro Mini, USB-Port doesn't work

pert October 12, 2017, 11:16pm 2

Does the issue still occur if the USB adapter is not connected to the Pro Mini?

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