I have the Controller software running OK on my Mac - but I cannot see a Serial Port to connect to. I've checked out the drivers and they look OK. I've tried different cables and different ports on my Mac too.

Then I noticed a whole stack of error messages are generated when I try to list the Serial Ports available (under the Setup tab). Copied below.

[Solved....... was an incorrect driver after all. CP210x USB to UART Bridge VCP Drivers were not properly installed]

Any thoughts welcome.

I might just see if I can dig out an old Windows machine and try on that tomorrow though.

The error log is as follows (for what it's worth)....

adding /dev/tty.Bluetooth-Incoming-Port
portNo: 2
Oct 16, 2018 7:23:28 PM controlP5.ControlBroadcaster printMethodError
SEVERE: An error occured while forwarding a Controller event, please check your code at button_mode_serialPortDialog
java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at controlP5.ControlBroadcaster.invokeMethod(Unknown Source)
at controlP5.ControlBroadcaster.callTarget(Unknown Source)
at controlP5.ControlBroadcaster.broadcast(Unknown Source)
at controlP5.Controller.broadcast(Unknown Source)
at controlP5.Button.setValue(Unknown Source)
at controlP5.Button.activate(Unknown Source)
at controlP5.Button.mouseReleased(Unknown Source)
at controlP5.Controller.setMousePressed(Unknown Source)
at controlP5.ControllerGroup.setMousePressed(Unknown Source)
at controlP5.ControlWindow.mouseReleasedEvent(Unknown Source)
at controlP5.ControlWindow.mouseEvent(Unknown Source)
at sun.reflect.GeneratedMethodAccessor5.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at processing.core.PApplet$RegisteredMethods.handle(PApplet.java:1236)
at processing.core.PApplet.handleMethods(PApplet.java:1431)
at processing.core.PApplet.handleMouseEvent(PApplet.java:2826)
at processing.core.PApplet.dequeueEvents(PApplet.java:2725)
at processing.core.PApplet.handleDraw(PApplet.java:2397)
at processing.core.PGraphicsJava2D.requestDraw(PGraphicsJava2D.java:240)
at processing.core.PApplet.run(PApplet.java:2256)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.ArrayIndexOutOfBoundsException: -1
at java.util.ArrayList.elementData(ArrayList.java:400)
at java.util.ArrayList.get(ArrayList.java:413)
at controlP5.ScrollableList.updateIndex(Unknown Source)
at controlP5.ScrollableList.setValue(Unknown Source)
at polargraphcontroller.addSerialPortControlFrame(polargraphcontroller.java:6220)
at polargraphcontroller.button_mode_serialPortDialog(polargraphcontroller.java:7106)
... 26 more