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class objects (objects which interface with USB or serial ports). Port class
objects, in turn, “own” all of the instances of the Node class objects.
You would use Node class objects to create and execute positional
moves, and to query the node's real-time status (Is the motor enabled? Is
the move done?).
Port class objects let you manage individual ports and the collection of
all nodes on a given port. Port class objects also provide access to Port
level features such as group shutdowns.
Finally, a System class defines the manager object used to implement
system level functions, things like defining and configuring the USB or
serial ports in your system, accessing system timestamps, setting up
thread safe delays, and providing a safe thread-locking mechanism.