PropCR provides a device implementation of the Crow serial protocol for the Parallax Propeller P8X32A. More information can be found on the project's source page at https://github.com/chris-siedell/PropCR.
The PyCrow project ("crow-serial" on PyPI.org) provides a Python host implementation that can communicate with a PropCR instance. PyCrow can be installed
using "pip install crow-serial", or it can be download from https://pypi.org/project/crow-serial/.
The Crow serial protocol's homepage is at http://siedell.com/projects/Crow/.