SLO-scope and Unhandled exception

[DavidEGrayson]

I’m glad you got it working!

We have experienced a very similar problem with that same model of hub:

RC Servo controller doesn't work through a USB hub

I actually resolved the issue shortly before you responded. The issue was a power problem. I am using the computer’s USB for power to both the maestro and the motor since both use under 500mA of combined current. If I use the hub’s external power supply, which sources 2A, the maestro and the motor return to normal operation. It seems as though hubs must not use a general power plane from which all ports can draw power, that rather they ration off power to each port even if the ports aren’t b…

–David