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Open Ephys publisher/subscriber

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Shay Ohayon

23 Aug, 2017 04:42 PM

Hi Chris,

I am changing things in open-ephys to receive messages from multiple sources using a subscriber based protocol.
It would be easier if I can send messages from Mworks using a publisher protocol (i.e., instead of the reponse/request).
Can you please add publisher-style output?
It might be better to rename the existing "open ephys" modules in mworks as generic "0MQ" modules since they can serve many other purposes (i.e., have a publisher module, subscriber module, and a request/response module)

Thank you,

Shay

1. Support Staff 1 Posted by Christopher Sta... on 24 Aug, 2017 08:14 PM

   

   Hi Shay,

   I think this is a good use case for MWorks' Python actions (run_python_file and run_python_string). I've attached an example experiment and associated Python scripts that demonstrate how to do ZeroMQ PUB/SUB, where the publisher is MWorks, and the subscriber is an external process. (Note that it makes use of some very new MWorks/Python functions, so you'll need to use a nightly build from this week.)

   If you don't have pyzmq installed, you can get it like so:

   easy_install --user pip  # If pip is not installed
   ~/Library/Python/2.7/bin/pip install --user pyzmq
   

   To launch the subscriber process:

   python sub.py
   

   If you have any questions, please let me know.

   Cheers,
   Chris

   • zmq_via_python.zip 1.22 KB
   • Edit

2. Christopher Stawarz closed this discussion on 06 Sep, 2017 02:38 PM.