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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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