I am using Phidgets Stepper Motor through a Bipolar HC controlelr with ROS. Essentially I am using phidgets22 library and following the example as here https://www.phidgets.com/?view=code_samples&lang=Python.
While, I could still declare the handler:
However when I create the handler:
It throws me the error as attached. [img]error.jpg[/img]
Could someone tell me what I am doing wrong.