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  1. cannot get 500 or 1000 hz sample rate from Wifi Shield (or SD card)

    wjcroft
    by wjcroft · June 2018
    I guess I'm just trying to be helpful. Profeel did finally get his SD card recording to work, as well as his Wifi Shield. So that's progress.
  2. cannot get 500 or 1000 hz sample rate from Wifi Shield (or SD card)

    wjcroft
    by wjcroft · June 2018
    to play it back in realtime via a modified sound card output, that is capable of very low frequencies in the EEG range. This can be done by removing the output coupling capacitors that impose a high
  3. cannot get 500 or 1000 hz sample rate from Wifi Shield (or SD card)

    wjcroft
    by wjcroft · June 2018
    I'm not clear WHY you are using the Wifi Shield to initiate your SD card recording session. You can do that just with the serial connection / dongle. The serial connection will not see the faster samp
  4. cannot get 500 or 1000 hz sample rate from Wifi Shield (or SD card)

    profeell
    by profeell · June 2018
    I used the WiFishield and SD card and get 4000Hz data, but I still can't get 8000HZ and 16000Hz data.
  5. cannot get 500 or 1000 hz sample rate from Wifi Shield (or SD card)

    wjcroft
    by wjcroft · June 2018
    Did you get the SD card recording to work? That should work at the higher speeds, providing you have a decent brand sdcard.
  6. script to convert SD card file

    armz12
    by armz12 · June 2018
    Is there a script available (C, python, etc) to convert the SD card file (hex format) to voltages, etc without having to use the OpenBCI GUI?
  7. cannot get 500 or 1000 hz sample rate from Wifi Shield (or SD card)

    wjcroft
    by wjcroft · June 2018
    Dongle is not used when connecting GUI via Wifi. SDK codes for Cyton are primarily used for dongle serial port connection.
  8. cannot get 500 or 1000 hz sample rate from Wifi Shield (or SD card)

    profeell
    by profeell · June 2018
    1. The Openbci SDK give the information: IMPORTANT! The Cyton with USB Dongle cannot and will not stream data over
  9. cannot get 500 or 1000 hz sample rate from Wifi Shield (or SD card)

    wjcroft
    by wjcroft · June 2018
    You can get 2000 or 4000 with the SD card, did you try that?
  10. cannot get 500 or 1000 hz sample rate from Wifi Shield (or SD card)

    wjcroft
    by wjcroft · June 2018
    Regarding your SD card recording for 15 minutes, you need to send CAPITAL S, not lowercase s. Is that what you sent?
  11. how to handle dropped packets? [DIY-Cyton] LabVIEW.

    shadowphile
    by shadowphile · June 2018
    -I collected to the SD card while logging on my screen.  I'm having problems getting no files sometimes despite what seems to be quality 16gb Sandisk.  However, I finally logged a glitch on my screen
  12. cannot get 500 or 1000 hz sample rate from Wifi Shield (or SD card)

    profeell
    by profeell · June 2018
    EEG-data. I have two way to get it by your guide, one is record the data to SD
  13. cannot get 500 or 1000 hz sample rate from Wifi Shield (or SD card)

    profeell
    by profeell · June 2018
    [original thread title: "Do you release a standard configuration guide?"]
  14. The various versions of the data files - how to work with them

    GeneralFox
    by GeneralFox · May 2018
    During the same time I also used the CSV format (SDconverted-2017-12-25_19-40-26.csv), and I cannot recall what needs to be done with these.  I have to convert these using the OpenBCI interface, corre
  15. OpenBCI 3.3.0 doesn't work (WIndows 10, 64-Bit)

    Derek
    by Derek · May 2018
    One problem I ran into - and I do not know if it is related at all - was that while doing a test run with SD-card saving enabled, it only registered approx. 18 minutes instead of 30 minutes as I had c
  16. add a new bandpass filter on GUI to receive 1-100 hz EEG?

    profeell
    by profeell · May 2018
    Sorry, I tried many times, but I can't read know the EEG-data, I still use 8000HZ sample rate to get the eeg-date, please forgive my stubbor, I need convert the eeg-data to WAV format data next step i
  17. add a new bandpass filter on GUI to receive 1-100 hz EEG?

    wjcroft
    by wjcroft · May 2018
    re: changing serial port baud rate: NO, you will only get the faster sample rate to the SD card, not the serial port.
  18. add a new bandpass filter on GUI to receive 1-100 hz EEG?

    profeell
    by profeell · May 2018
    I have a questions about the SD card to
  19. add a new bandpass filter on GUI to receive 1-100 hz EEG?

    wjcroft
    by wjcroft · May 2018
    The hex format of the SD card data is explained here,
  20. add a new bandpass filter on GUI to receive 1-100 hz EEG?

    profeell
    by profeell · May 2018
    Sorry to much, my english is too bad, the second question is: how many ways can convert these hexadecimal files in the SD card to ‘normal’ data files?
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