Raw data with positive values only

igalBrainigalBrain israel
in Software
Hi all,
Is it possible to change the code of the OpenBCI so that the values of the raw data extracted from the system will be all positive?
As far as I know, it has to be connected to the offset. 

Comments

  • wjcroftwjcroft Mount Shasta, CA
    Hi Igal,

    I'm not sure I understand your question. After processing the raw data with a high pass filter (at around .5 hz), you will end up with EEG data that ranges from say approximately plus and minus 100 microvolts. This is the normal range of EEG data values and represents the differential voltage measured between the channel electrode and reference electrode.

    Regards,

    William

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