I wrote a small program named Oximon a few months ago to extract data from CMS-50x pulse oximeters and generate Gnuplot graphs. I use it to detect REM sleep and

I wrote a small program named Oximon a few months ago to extract data from CMS-50x pulse oximeters and generate Gnuplot graphs. I use it to detect REM sleep and it does the job with a nice accuracy so maybe it could help someone suffering from sleep apnea as well: https://github.com/vinc/oximon https://github.com/vinc/oximon