We implemented support for stepper motor controller KST101 from Thorlabs. Similarly to the Picomotor controller, the communication is based on PyLabLib Python package. See Thorlabs APT/Kinesis devices web page for more info.

The communication with the controller was tested under Linux using USB connection. After plug in a new device is created, e.g. /dev/ttyUSB0, use dmesg | tail commands to figure this out. This is then used as device address. See thorlabs-stepper.py