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Problems with SleepyHead
Hello All

Because SleepyHead on the Mac cannot upload a recording taken on the CMS50D I've been collecting overnight recordings attached to the computer. But the data raises some troubling concerns. Two issues arise: 1) the SpO2 graph is inconsistent with the alerts, and 2) export does not provide any data.

Issue 1 is illustrated by my first two figures. The figure "SleepyHead - SpO2 drop events" shows 16 'drop' events during one night. However, zooming the SpO2 graph shows no drops at these events. I've looked at most of them, and they all look like figure "No drop event in SpO2 graph zoomed to 1-27-40", which shows no sign of the drop event reported at 01:27:40 or any change in SpO2 at this time. This raises the question Are these drops real or are they artifacts? If they're real, I'd like to know because they may have health implications. And if they're not real, the SleepyHead detection method appears to be buggy.

A related question is What is the sampling rate? By its flashing, it appears that the CMS50D samples at 1 Hz., but that's just a guess. The CMS-50E user manual does not report its sampling rate. The sampling rate is important because it would help understand the SpO2 graphs.

To investigate this further, I exported the data, which raises issue 2: export does not provide any data. I used the "CVS export wizard" with both Detailed and Daily options, and none of them contain any data. Please see the "Empty SleepyHead downloads" screenshot.

I know that SleepyHead is open-source software, and that support is not available. I'm a skilled programmer, but unfortunately I don't have time to work on SleepyHead. Perhaps I could find someone else to work on it.

I'm using SleepyHead v1.0.0-beta-2; Build Date: Apr 21 2016 11:02:02; Revision: cb213cc (master branch), and running it on OSX Yosemite 10.10.5.


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Hello All

I would like to resolve these problems with Sleepyhead. How might I get in touch with people who might be working on it?

SleepyHead appears to be written solely by Mark Watkins, AKA JediMark. He posted about it on 2016-04-18 and last committed SleepyHead code on 26 Apr, 2016. The source code is at https://gitlab.com/sleepyhead/sleepyhead-code.git

I messaged him from his SourceForge profile https://sourceforge.net/u/jedimark/profile/send_message

The SourceForge site points to a bug reporting page https://www.jedimark.net/tiki-index.php?...yHead+Bugs., but that does not exist. One contact page for Mark is at https://www.jedimark.net/contact but that does not exist. The http://bugs.jedimark.net/ pge does not work.

Unfortunately I do not have the time to work on the software. But I would like to help get the process going. I welcome any suggestions on how to do this and improve SleepyHead.

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Hit or miss with Mark. If you are on Facebook, try https://www.facebook.com/groups/sleepyheadcpap/

Using FlashAir W-03 SD card in machine. Access through wifi with FlashPAP or Sleep Master utilities.

I wanted to learn Binary so I enrolled in Binary 101. I seemed to have missed the first four courses. Big Grinnie

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Thanks Alan

Software that people depend on needs more than one person developing and maintaining it.
I've submitted a request to the FB group.

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Back to the original problems with uploading CMS50D+ data.
Silicon Labs released a new version of the CP210x driver in early May which may resolve your problems. I no longer have a Mac, and it couldn't run 10.10, so I can't test it.
The link is http://www.silabs.com/products/developme...cp-drivers

best of luck
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Thanks Alan

I asked to join but have not been added. Could you please post a link to my "Problems with SleepyHead" post to the FB group?

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