'''How to setup the NOAA Weather GSD'''

=Device Template=
* Description - NOAA Weather
* Implements DCE
* Device Category - Environment Climate Device #83
* Comm Method - Ethernet
* Commands - Ruby internal commands

=GSD Code=
* #395 Check for updates
<pre>
check_weather()
</pre>

* #396 Check for updates done
<pre>
check_weather_done()
</pre>

* #373 Private Method Listing
<pre>
### Logging function
def log(word)
$logFile.print( word + "\n" )
$logFile.flush()
end

### Weather check function
def check_weather()
log("Backing up previous data")
oldweather = $weather
oldtemp = $temp
oldpressure = $pressure
olddew_point = $dew_point
oldheat_index = $heat_index
oldwindchill = $windchill
oldhumidity = $humidity
oldwind = $wind
oldvisibility = $visibility

log("Checking for weather updates")

### Get xml file from NOAA
# xmlPath = "www.weather.gov/data/current_obs/"+$identifier+".xml"
# h = "GET "+xmlPath+" HTTP/1.0\r\n"
# log("HTTP Request: #{h}")
# conn_.Send(h)
# resv = ""
# while(true)
# buff = conn_.Recv(16384, 5000)
# if buff.length() == 0
# break
# end
# recv = recv + buff
# end
h = Net::HTTP.new('www.weather.gov', 80)
data_loc = "/data/current_obs/"+$identifier+".xml"
resp, data = h.get(data_loc, nil)

if resp.message == "OK"

# if recv =~ /^HTTP[^\r\n]+200\sOK.+?\r\n\r\n(.+)$/m
# data = $1
# log("Recieved:\n#{data}")

data.each_line {|line|
if line =~/location>(.*)<\/location>/
$location = $1
end
if line =~/observation_time_rfc822>(.*)<\/observation_time_rfc822>/
$obs_time = $1
end
if line =~/weather>(.*)<\/weather>/
$weather = $1
end
if $units == "F"
if line =~/temp_f>(.*)<\/temp_f>/
$temp = $1
end
if line =~/pressure_in>(.*)<\/pressure_in>/
$pressure = $1
end
if line =~/dewpoint_f>(.*)<\/dewpoint_f>/
$dew_point = $1
end
if line =~/heat_index_f>(.*)<\/heat_index_f>/
$heat_index = $1
end
if line =~/windchill_f>(.*)<\/windchill_f>/
$windchill = $1
end
else
if line =~/temp_c>(.*)<\/temp_c>/
$temp = $1
end
if line =~/pressure_mb>(.*)<\/pressure_mb>/
$pressure = $1
end
if line =~/dewpoint_c>(.*)<\/dewpoint_c>/
$dew_point = $1
end
if line =~/heat_index_c>(.*)<\/heat_index_c>/
$heat_index = $1
end
if line =~/windchill_c>(.*)<\/windchill_c>/
$windchill = $1
end
end
if line =~/relative_humidity>(.*)<\/relative_humidity>/
$humidity = $1
end
if line =~/wind_string>(.*)<\/wind_string>/
$wind = $1
end
if line =~/visibility_mi>(.*)<\/visibility_mi>/
$visibility = $1
end
}
end

### Send out events for weather changes
if $weather != oldweather
ms = "/usr/pluto/bin/MessageSend dcerouter "+device_.devid_.to_s+" -1001 2 75 13 \""+$weather+"\""
system(ms)
log("Message sent: #{ms}")
end
if $temp != oldtemp
ms = "/usr/pluto/bin/MessageSend dcerouter "+device_.devid_.to_s+" -1001 2 25 13 \""+$temp+"\""
system(ms)
log("Message sent: #{ms}")
end

check_weather_done()
end

### Post weather check
def check_weather_done()
log("Weather data from: "+$obs_time)
log("Weather check complete")
end
</pre>

* #351 Process IDLE
<pre>
### Auto check weather every quarter past the hour per NOAA
t = Time.now

if t.min == 15
t -= (60 * 60)

if $obs_time =~/(\d\d):\d\d:\d\d/
obs_hour = $1
end

if t.hour != obs_hour.to_i
log("Quarter past the hour and weather update needed")
check_weather()
end
end
</pre>

* #355 Process Initialize
<pre>
###
# NOAA Weather check
# 2008 Jason Speckman
###
require 'net/http'

# Init Vars

$logFile = File.new("/var/log/pluto/NOAA_Weather.log", "w")

### Change these values to match device data values
$DEVICEDATA_ICAO_CONST = 249
$DEVICEDATA_UNITS_CONST = 250

$units = ""
$identifier = ""
$location = ""
$obs_time = ""
$weather = ""
$temp = ""
$pressure = ""
$dew_point = ""
$heat_index = ""
$windchill = ""
$humidity = ""
$wind = ""
$visibility = ""

### Check for identifier and units
if device_.devdata_ != nil
if device_.devdata_[$DEVICEDATA_ICAO_CONST] != nil
$identifier = device_.devdata_[$DEVICEDATA_ICAO_CONST]
log("ICAO identifier: "+$identifier)
else
log("No ICAO identifier specified")
end
if device_.devdata_[$DEVICEDATA_UNITS_CONST] != nil
$units = device_.devdata_[$DEVICEDATA_UNITS_CONST]
else
$units = "F"
end
end

log("Units in degrees "+$units)

if $units == "F"
$press_units = "in. Hg"
else
$press_units = "hPa"
end

### Tell DCE we are a climate device
log("Starting NOAA Weather Check")
log("Setup message intercept for DCERouter")

###
# devIDfrom: device_.devid_ = my device id
# devIDto: -1000 = dcerouter
# priority:
# type: 1 = command, 2 = event
# id:

$devIDfrom = device_.devid_
devIDto = -1000
priority = ""
type = 2
id = ""

#cmd = Command.new(devIDfrom, devIDto, priority, type, id)
#cmd.params_[x] = y
#SendCommand(cmd)

#ms = "/usr/pluto/bin/MessageSend dcerouter " + device_.devid_.to_s + " -1000 8 0 5 2 4 10"
#system(ms)

log("Init complete")

### Initial weather check
check_weather()
</pre>

* #356 Process Release
<pre>
if ($logFile != nil) then
$logFile.close
end
</pre>

=Device Data=
(These variable numbers may be different, be sure to update them in the ruby code)
* #249 ICAO Location Indicator(string) - Comment: Local airport identifier for weather info - (Required and Allowed to modify checked)
* #250 Units(string) - Comment: Degree units. Either (F) or (C) - (Required and Allowed to modify checked)

=Events=
* Temperature Changed #25 - Comment: Temperature has changed since last update
* Weather Changed #75 - Comment: Weather has changed since last update

=Issues and TODO=
* Does not respond to events
* Only send weather info when there is a change from the previous weather check
* Only sends weather conditions and temperature changes
* No way to ask for weather data from the device

[[category: tutorials]]

2008-06-18T22:23:17Z

Jspeckman: New page: Here's how to setup squeezeslave to run on the core. It's fairly straight forward. One small issue is that because squeezeslave uses the OSS interface you will need a separate sound card...

Here's how to setup squeezeslave to run on the core. It's fairly straight forward. One small issue is that because squeezeslave uses the OSS interface
you will need a separate sound card for each instance of squeezeslave you want to run.

First download a version of [http://sourceforge.net/project/showfiles.php?group_id=105169 Squeezeslave]. I'm running the latest version as it fixed some playback bugs I was having, but any version that works with you're setup should be fine. You'll want to put it somewhere in you're path. I have mine installed in /usr/local/bin

Next add the following to /etc/rc.local (this is my setup for two)
/usr/local/bin/squeezeslave -m 00:00:00:00:00:01 -o 0 -s -r &
/usr/local/bin/squeezeslave -m 00:00:00:00:00:02 -o 1 -s -r &

* the MAC address can be whatever you want
* the -o option specifies which OSS output device ie /dev/dsp1
* the -s option tells squeezeslave to wait for a signal to quit rather than control-C
* the -r option tells squeezeslave to keep retrying to connect to the server, useful if the server is not running yet.

Next make sure all the volume levels in the mixer (alsamixer) are set correctly

Next step, manually add the squeezeslave to linuxmce as a squeezebox using the mac address you gave it. Assign it to a room and entertainment
area. Regen your orbiters and reset the dcerouter.

That should do it.

2008-06-16T13:27:15Z

Jspeckman:

Upgrading SlimServer

2008-06-16T13:09:18Z

Jspeckman: New page: Upgrading SlimServer Here are the steps needed to upgrade the SlimServer that comes with LinuxMCE to the latest version of Squeezecenter.

Upgrading SlimServer

Here are the steps needed to upgrade the SlimServer that comes with LinuxMCE to the latest version of Squeezecenter.

User:Jspeckman

2008-06-16T13:07:15Z

Jspeckman:

User:Jspeckman

2008-06-16T03:24:00Z

Jspeckman: New page: My Setup Hardware Dedicated Core Dual Pentium 3 (1ghz) 2 Gb ram Onboard 100mb ethernet (external) 64bit pci 1gb fiber card 2 SB Live! cards 1 ati rage 128 (just ...

My Setup

Hardware
Dedicated Core
Dual Pentium 3 (1ghz)
2 Gb ram
Onboard 100mb ethernet (external)
64bit pci 1gb fiber card
2 SB Live! cards
1 ati rage 128 (just enough video for a dedicated server)
1 80 Gb drive (system and audio media)
1 250 GB drive (video media)

Media Directors
None ( I use XBMC on an Xbox to watch videos)

Orbiters
Web orbiter on an iPhone

Automation
1 CM11A
A couple of X10 switches and outlets

Audio
2 zones of whole house audio completed so far (this system is being designed for background music)
Zone 1 - first soundcard -> amp ->ceiling speakers on first floor. Manual volume control in each room
Zone 2 - second soundcard -> car amp ->pair of car speakers in outdoor housings on patio

Software Setup
LinuxMCE 704 (haven't had time to upgrade to 710)
Latest Squeezecenter (replaced SlimServer shipped with LinuxMCE) (more on installation later)