Pulse Waveform

[bpk323]

Hello,

I am using this shield as part of a larger device and I am relatively inexperienced with Arduino. I have somewhat of an understanding of the code, however, I was wondering if you could provide some guidance for the extraction of the raw pulse waveforms? I am trying to graph the waveform along with waveforms from two other probes (one ear PPG and one ECG). Any help is much appreciated! Thanks!

[joicetm]

Hello,
please have look at line 221,

      IRtemp = (unsigned long) (IRtemp<<10);
      seegtemp = (signed long) (IRtemp);
      seegtemp = (signed long) (seegtemp>>10);  
         
      REDtemp = (unsigned long) (REDtemp<<10);
      seegtemp2 = (signed long) (REDtemp);
      seegtemp2 = (signed long) (seegtemp2>>10);

here we are storing raw values of IR and RED to these variables.

[bpk323]

Great, thank you!