Hi Tom,

So there was no such file. I created it using sudo -s and here is what I put in it:

# Arduino Uno Rolloffino Roof controller roofCtrl. Shown as Arduino SA - Arduino Uno.
SUBSYSTEMS=="usb", ATTRS{idVendor}=="2341", ATTRS{idProduct}=="0043", MODE="0666", SYMLINK+="roofCtrl"

# Arduino Nano weather/met station controller.  - Shown as QinHeng Electronics CH340 serial converter
SUBSYSTEMS=="usb", ATTRS{idVendor}=="1a86", ATTRS{idProduct}=="7523", MODE="0666", SYMLINK+="metCtrl"

I restarted and it doesn't seem to make any difference. Do I need to register the file
99-observatory.rules
? Or point to it in some way, or is everything in rules.d automatically registered.

Tx.

Steve.

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