Does the SD card allow multiple data collections to be saved?

profeellprofeell
in Wifi Shield

I'm planning to use the Wi-Fi Shield and Cython board to collect data and also want to save it to an SD card. However, I've noticed that the SD card only records data for a single session. If I stop and restart the session, the second data collection isn't written to the SD card. Is this normal, or did I do something wrong?

Comments

  • wjcroftwjcroft Mount Shasta, CA

    Note that the Wifi Shield is no longer supported, as it has been deprecated.

    re: multiple SD card sessions

    Mentioning GUI developer Richard @retiutut and @Shirley.

    William

  • profeellprofeell

    If I only use the CYTHON board and not the WIFI board, can I record EEG files multiple times on one SD card?

  • wjcroftwjcroft Mount Shasta, CA
    edited August 2025

    Are you sure you are initiating a NEW session for each recording to the sd card? That is compatible and documented.

    https://docs.openbci.com/Cyton/CytonSDCard/#openbci-formatting

    You write in your initial post:

    "If I stop and restart the session...."

    This sounds like your issue. To get multiple recordings on the card, you need to start a new session for each new file. The file naming, numbering scheme is outlined in the above link.

    If you have further questions, I suggest you email to (contact at openbci.com), where a ticket will be assigned to an engineer.

    William

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