blood oximeter on cyton

brownjonkentbrownjonkent United States
in Cyton
does anyone have any pointers on collecting blood oxygenation data from the cyton?

thanks in advance!

Comments

  • wjcroftwjcroft Mount Shasta, CA
    Jon, Cyton and Ganglion have no hardware that can perform oximetry.


    There are some Arduino examples here, using external chips or breakouts. My suggestion is to NOT try to interface these with the Cyton PIC32 processor directly. But to use another Arduino on another serial port.

  • wjcroftwjcroft Mount Shasta, CA
    Then again, besides building one yourself, there are probably many Bluetooth oximeter devices out there, where you could directly receive the SpO2 readings on your laptop app.


  • brownjonkentbrownjonkent United States
    Yup, I was looking at those.  Ideally I wanted as many signals coming through the Cyton as possible as I have the nodeJS code working there already, but not a big deal.

    Looks like my ECG, EMG comes through Cyton and Oximetry comes through Arduino.  

    Not horrible for a POC :).

    Any thoughts on a Oximeter signal coming through Cyton in the future?
  • wjcroftwjcroft Mount Shasta, CA
    OpenBCI is mostly targeted at electrical body signals: EEG, ECG, EMG. Joel Murphy's Pulse Sensor (PPG ear lobe clip) has been used with Cyton, but the same info can be derived from the ECG. Pulse Sensor lacks the dual LEDs needed for oximetry and just gives raw data from the photosensor.

    Here's a note by someone using the MAXIM IC, who found that he had to make numerous fixes to the signal processing firmware,


    So, overall, if you consider your time and hourly rate, just purchasing a low cost Bluetooth oximeter would seem to be the best route. Especially as many of these are less than $100.
  • brownjonkentbrownjonkent United States
    Roger that and agreed... thank you!!!!!
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