mirror of
https://github.com/wezm/wezm.net.git
synced 2024-12-23 12:39:53 +00:00
38 lines
1.9 KiB
HTML
38 lines
1.9 KiB
HTML
Two weeks ago when I [installed my weather station][install] I setup the wview
|
|
software to log the current conditions and generate and upload
|
|
HTML and graphs to [the weather page][weather]. wview seemed like the
|
|
perfect tool for the job but unfortunately it proved unreliable, even with the
|
|
built in process monitoring. After a few hours of running fine it appeared the
|
|
HTML generation process would hang, preventing any further updates to the
|
|
website.
|
|
|
|
[install]: /personal/2010/09/weather-station/
|
|
[weather]: /weather/
|
|
|
|
wview has a lot of functionality and thus a lot of code, which turned me
|
|
off trying to track down the bug. I looked around for
|
|
alternatives and found [Open2300][open2300], which is a core collection of
|
|
functions for communicating with a LaCrosse WS-23xx weather station and a set
|
|
of tools. wview logged its observations to an SQLite database, which seemed
|
|
appropriate for this application. There were tools in Open2300 to log current
|
|
conditions to MySQL and PostgreSQL databases but not SQLite. So last weekend
|
|
I spent some of the afternoon learning enough of the SQLite C API to add
|
|
such a tool. The result is in my
|
|
[git mirror of the Open2300 SVN repo][open2300git]. Once the SQLite tool is
|
|
tidied up a bit more I'll submit it upstream.
|
|
|
|
[open2300]: http://www.lavrsen.dk/foswiki/bin/view/Open2300/WebHome
|
|
[open2300git]: http://github.com/wezm/open2300
|
|
|
|
Now I had a database of observations I needed to replace the HTML pages
|
|
that wview was previously generated. To do this I wrote a small
|
|
[Lua tool][weather-tools]
|
|
to query the database and output the results to a [JSON][json] file. The
|
|
JSON is used on the new [weather page][weather], which is largely populated
|
|
by Javascript and uses the [flot][flot] and [dygraphs][dygraphs] libraries
|
|
visualise the weather data.
|
|
|
|
[json]: http://www.json.org/
|
|
[flot]: http://code.google.com/p/flot/
|
|
[dygraphs]: http://dygraphs.com/
|
|
[weather-tools]: http://github.com/wezm/weather-tools
|