Hi Patrick,
I wasn't sure that it wasn't a power issue so I even borrowed a powered USB hub but when I run it as root it attaches even without the powered hub. Purely a permissions problem.

Thanks for that.

John

I have an older Phidget 1203_0 (PhidgetTextLCD 2x20 White with PhidgetInterfaceKit 8/8/8) that communicates fine plugged into a Mac running Phidget Control Panel. Plugged int a new Raspbery Pi 4 B running Raspian on which I have performed the following installs: sudo apt-get update sudo apt-get inst...