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This page has a few of my blog entries about linux, but my main linux page is here
Picture of Linus

Here is a list of older linux event reports I made before my blog was started, then the rest are below
1996/11/18-21:Linux Pavillion Comdex Fall 1996 (photos only). I've been going since then to help at the linux pavillion.
1997/11/18-21: Linux Pavillion Comdex Fall 1997 (photos only)
1998/05/28-30: Linuxexpo 1998 (photos only)
1998/11/16-20: Linux Pavillion Comdex Fall 1998 (full report)
1998/11/11: Silicon Valley Tea Party (report with pictures)
1999/02/15: Windows Refund Day (report with pictures)
1999/03/20: SVLUG KTEH night (photos only)
1999/03/01-04: LinuxWorld Expo Winter 99 (complete report with many pictures)
1999/03/31: Mozilla Party one year anniversary (photos only)
1999/05/18-22: Linuxexpo 1999 (complete report with many pictures)
1999/06/07: June 99 Balug meeting with Linus
1999/08/09-12: LinuxWorld Expo Summer 99 (complete report with many pictures)
1999/11/15-19: Linux Business Show at Comdex Fall 1999 (full report with pictures)
2000/08/14-17: LinuxWorld Expo Summer 2000 (complete report with many pictures)
2001/01/17-20: Linux.conf.au/LCA 2001 (complete report with pictures)
2001/07/25-28: OLS 2001 (photos only)
2001/08/25: Linux 10th Anniversary (report with pictures)
2001/09/27-30: LinuxWorld Expo Summer 2001 report with pictures)
2001/11/05-10: ALS 2001 (photos only)
2002/06/26-29: OLS 2002 (photos only)
2003/01/20-25: LCA 2003 (photos only)
2003/07/23-26: OLS 2003 (photos only)
2004/01/12-17: LCA 2004 (photos only)
2004/07/21-24: OLS 2004 (photos only)
2005/04/18-23: LCA 2005 (photos only)
2006/01/24-28: LCA 2006 (photos only)
2007/01/17-21: LCA 2007 (photos only)

Here is a list of all the talks I've given:

And below are my blog posts:



Table of Content for linux:

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2011/12/17 Zeo Raw Library Simple Callback Example
π 2011-12-17 01:01 in Linux, Osa
The MyZeo folks definitely deserve credit for releasing open firmware and instructions on how to interface with their bedside Zeo device via a custom made serial port: http://zeorawdata.sourceforge.net/starting.html

Since I had been working on arduino, I happened to have one of those 3.3V FTDI USB-serial converters, and was able to make a cable that connects my bedside Zeo to my server closer via a custom cable going through my existing Cat-5 wiring.

The example code they gave is however, while very fancy, not that simple to borrow from for a more simple application that simply needs to keep track of the sleep stage.

So, after finding the relevant info, I compiled the code below, which I'm posting for others to use (you can also download it here: zeo raw data code sample).

#!/usr/bin/python

# This is based off the Zeo Raw Data Library at the bottom of # http://zeorawdata.sourceforge.net/starting.html # This script is a much simpler version of how to log basic data than the cool # and pretty GUI_Viewer from http://zeorawdata.sourceforge.net/examples.html # This script is an easier example to steal from for simple logging/integration.

# By Marc MERLIN <marc_soft@merlins.org> / 2011/12/17 # License: GPLv3.

#gandalfthegrey [mc]$ ./logsleep.py # 2011-12-17 12:19:10: HeadbandDocked # 2011-12-17 12:19:15: HeadbandUnDocked # 2011-12-17 12:19:22: Sleep state: Undefined # 2011-12-17 12:19:52: Sleep state: Undefined # 2011-12-17 12:20:22: Sleep state: Undefined # 2011-12-17 12:20:52: Sleep state: Undefined # 2011-12-17 12:21:22: Sleep state: Undefined # 2011-12-17 12:21:52: Sleep state: Undefined # 2011-12-17 12:22:22: Sleep state: Undefined # 2011-12-17 12:22:52: Sleep state: Undefined # 2011-12-17 12:23:22: Sleep state: Undefined # 2011-12-17 12:23:52: NightStart # 2011-12-17 12:23:52: Sleep state: Awake # 2011-12-17 12:24:22: Sleep state: Awake # 2011-12-17 12:24:52: Sleep state: Awake # 2011-12-17 12:25:22: Sleep state: Awake # 2011-12-17 12:25:52: Sleep state: Awake # 2011-12-17 12:26:23: Sleep state: Awake # 2011-12-17 12:26:32: HeadbandDocked

# System Libraries import time import sys

# Zeo Libraries from ZeoRawData import BaseLink, Parser from ZeoRawData.Utility import *

# User customizable variables port = '/dev/ttyUSB0'

class Callbacks: def logtime(self): return time.strftime("%Y-%m-%d %H:%M:%S: ", time.localtime())

def SliceCallback(self, slice): if slice['SleepStage']: print self.logtime() + "Sleep state: " + slice['SleepStage']

def EventCallback(self, logtime, version, event): print self.logtime() + event

if __name__ = "__main__": link = BaseLink.BaseLink(port) parser = Parser.Parser()

callbacks = Callbacks()

# Add Callbacks and Start the Link link.addCallback(parser.update) parser.addSliceCallback(callbacks.SliceCallback) parser.addEventCallback(callbacks.EventCallback) link.start()

# Infinitely loop to allow the script to run continuously while(True): time.sleep(5)


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