Connecting a Cython directly with a Raspberry Pi

PMK89PMK89 Clausthal, Germany
in Cyton
Hello,

Are there any resources how to directly (wired) connecting a Cython board with a Raspberry Pi?
There are multiple reasons to do it:
- having a wearable device for neuro feedback with additional sensors on the Raspberry Pi
- using the higher sample rate
- I am more experienced in Python than C++ so want to do the processing with it
- I can make a webinterface that allows controlling the device by every other client like a smartphone or Linux computer.
I have a few ideas how to do it but that will result in a lot of trial and error so I wonder if someone has done this or something similar before and where I can find information about it.
Best regards
Patrick

Comments

  • wjcroftwjcroft Mount Shasta, CA
    edited December 2018
    Hi Patrick,

    Did you look through some of the search results (using the search tools in the right column?)


    You don't actually need a wired connection, the dongle plugs directly into the Raspberry usb port. Another option for higher sample rates is to use the Wifi Shield with your Cyton.

    The page with the most info on wired usb is here,


    Based on our exchanges on this thread,


    But to be frank, the Wifi Shield will be a much easier and faster way for you to get your desired features. Winslow's wired usb experiments were done with a laptop, and Raspberry latencies / timing delays, may differ; since there is less CPU power available.

    Regards,

    William

  • PMK89PMK89 Clausthal, Germany
    Hi William,

    The GitHub Link seems to be what I am looking for. I will try it and post when I got some results. Thank you.

    The problem with all bought products is that I have to pay the double price due to insane shipping costs, custom fees and additional fees for getting it through the customs. Even with the cheapest shipment option it is at 200$ and the custom fees are also on the shipping. Additionally as I bought the Cython the delivery got postponed multiple times with the false statement nobody was home. So ordering at the shop is a really unpleasant and expensive experience from Germany.

    Regards,
    Patrick
  • wjcroftwjcroft Mount Shasta, CA
    Have you just tried plugging the Cyton dongle into your Raspberry? Does that work? What application are you considering that requires higher than 250 Hz sample rate? In general 250 Hz is fine for most EEG. Only certain EMG work benefits from say 500 Hz.

    Python interface to the Cyton dongle serial port stream is done very easily,


    Regards,
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