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  1. can I use cyton daisy extension board without the main board?

    wjcroft
    by wjcroft · September 2023
    TI has this eval kit,
  2. Bias feedback

    wjcroft
    by wjcroft · March 2023
    If you examine the Cyton schematic, or the TI Eval Board schematic, you can see a separate low pass filter installed on EACH input pin. This is a requirement of delta-sigma ADCs. The bandpass of the R
  3. could OpenBCI support Texas Instruments ADS1299EEGFE-PDK ?

    wjcroft
    by wjcroft · September 2020
    The TI eval kit was examined for specifications in the design of the original Cyton. But the current Cyton has many features that the TI kit lacks:
  4. possible to connect multiple devices to one computer with a USB hub?

    andrewtang
    by andrewtang · September 2020
    Hi William, thanks for your quick response. I am trying to facilitate an EEG experiment that involves monitoring 10 people simultaneously in the same room. I recently purchased a ganglion eval kit and
  5. Differential input filtering deviance from datasheet

    wjcroft
    by wjcroft · November 2018
    Here is my unofficial observation. The per-channel front end RC filter (regardless of exact schematic placement) is a low pass filter, intended to dissipate / block environmental-noise high frequencie
  6. Differential input filtering deviance from datasheet

    Nate
    by Nate · November 2018
    Interesting, I took a look at the eval board schematic and as far as the datasheet is concerned it would also be in violation. So our hardware engineer took a look at the TI forum and found a thread w
  7. EEG Single-channel minimum electrode montage

    mark.o.s
    by mark.o.s · February 2018
    I still wonder, if only 1P and 1N are included in the bias, and they are only 3cm apart (roughly distance between C3-C4), then surely in addition to the offset, 50Hz, etc., there is EEG signals common
  8. GSR & OpenBCI

    wjcroft
    by wjcroft · December 2017
    This EDN article shows the circuit and algorithms used by the Maxim dev kit GSR developer eval module. It is using AC drive.
  9. Brain Controlled Wheelchair with TI Eval module > Arduino Uno > PC

    biomurph
    by biomurph · April 2016
    When I used the TI eval board years ago, I set up a level shifter to make the 3.3V compatible with the 5V arduino. At the very least, you will need a voltage divider going from 5V to 3.3V. The other d
  10. Brain Controlled Wheelchair with TI Eval module > Arduino Uno > PC

    wjcroft
    by wjcroft · April 2016
    > using variations of Chip's code, it does not really seem to be working.
  11. Brain Controlled Wheelchair with TI Eval module > Arduino Uno > PC

    wjcroft
    by wjcroft · April 2016
    If your Arduino sends out packets in OpenBCI format, all of the other OpenBCI compatible apps should work, such as neuromore, etc.
  12. Brain Controlled Wheelchair with TI Eval module > Arduino Uno > PC

    gokul_96
    by gokul_96 · April 2016
    since your Open BCI isn't available here we had to go with the TI eval module. we wanted to use the same technique 
  13. Front end filtering: ESD, CMRR, RFI

    wjcroft
    by wjcroft · August 2015
    @AgustinS , hi.
  14. Daisy chain ADS1298 TI Eval board to OpenBCI board?

    wjcroft
    by wjcroft · July 2015
    My perception of the TI Eval kit (from reading material on the web), is that it is kind of awkward to work with. Contains both the ADS129x board and a 'mother' board with usb interface. Firmware on th
  15. Daisy chain ADS1298 TI Eval board to OpenBCI board?

    wjcroft
    by wjcroft · July 2015
    David, the hardware interconnection and firmwares on the TI and OpenBCI boards are completely different. So you cannot put OpenBCI firmware on the TI Eval board.
  16. Daisy chain ADS1298 TI Eval board to OpenBCI board?

    wjcroft
    by wjcroft · July 2015
    > Can I daisy chain an ADS1298 board from TI to the OpenBCI board to get from 8 to 16 channels, or from 16 to 24?
  17. Daisy chain ADS1298 TI Eval board to OpenBCI board?

    mrbaba
    by mrbaba · July 2015
    Can I daisy chain an ADS1298 board from TI to the OpenBCI board to get from 8 to 16 channels, or from 16 to 24?
  18. ADS1299 with Arduino DUE Sampling problem

    wjcroft
    by wjcroft · June 2015
    http://openbci.com/forum/index.php?p=/search&Search=ti+eval
  19. TI Eval Kit: isolation, RLD, Reference, and BIAS

    wjcroft
    by wjcroft · January 2015
    There are two levels of EMI filtering. RC filters on each channel pin, and a Sinc filter inside the ADS1299. See the TI data sheet. There are several other threads on the forum that discuss EMI issues
  20. TI Eval Kit: isolation, RLD, Reference, and BIAS

    Deepaksen
    by Deepaksen · January 2015
    a) I hope BIAS helps to avoid floating of the voltage level of the body. Then what about the EMI that the body is affected by? (As a large amount of EMI should be coupled to the patient's body.)
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