AmatYr

AmatYr is a personal weather station display software project.

The software is a modern HTML5 "single page app" using JavaScript to fetch data from SQL via JSON from Postgresql + Lua backend. Then the data is transformed into pretty visualizations by the brilliant (D3.js)[http://d3js.org] library, giving the data life!

Primary goal of the project is bringing modern and responsive design, suitable for desktop, tablet and mobile-sized screens. A secondary goal is just playing with new technology because it's fun :-) And I guess a goal is to display some pretty graphs and such for local weather!

Frontend Components

D3 js
jQuery
Rivets js
Watch js
Path js
Wind rose chart from Windhistory.com
Bootstrap css + js
Cal-Heatpmap from Wan Qi Chen http://kamisama.github.io/cal-heatmap/

Backend Components

Openresty (nginx + luajit)
PostgreSQL

Getting weather data into SQL

The frontend is somewhat loosely coupled with the backend, but it fetches data via JSON from the backend, so to get data displayed it must be accessible in that manner. There's 3 different ways to achieve that. Use one of these methods:

Included with the project is a small python utility to read Davis Vantage .txt-logs and insert into SQL (davislogparser.py)
Inlucded with the project is a smal python utility to read the output from Weather Display Live and insert into SQL (wdparser.py)
Included is a patch (scripts/weewx-2.1.1.postgresql.patch) for (Weewx)[http://weewx.com] to be able to store data in PostgreSQL.

Installation of the frontend

Clone this repostory
Add bootstrap resources
Add fontawesome resources
Compile and install openresty, with LuaJit and Postgresql support. Grab source at Openresty

Run:

./configure --with-luajit  --with-http_addition_module --with-http_dav_module --with-http_geoip_module --with-http_gzip_static_module --with-http_image_filter_module --with-http_realip_module --with-http_stub_status_module --with-http_ssl_module --with-http_sub_module --with-http_xslt_module --with-ipv6 --with-http_postgres_module

And follow Openresty's own installation docs.

Configure postgresql

Configure the virtual host for nginx like this:

lua_package_path '/home/yr/amatyr/?.lua;;';

server { listen *:80; server_name yr.no;

 set $root /home/yr/amatyr/;
 root   $root;
 access_log /home/yr/amatyr/access.log;
 error_log /home/yr/amatyr/error.log;

 location /api {
    lua_code_cache off;
    content_by_lua_file $root/pgrouter.lua;
 }
 location /static {
     root $root;
 }

 location / { try_files $uri @lua; }
 location @lua {
    lua_code_cache off;
    content_by_lua_file $root/amatyr.lua;
 }

}

Install the resty postgresql driver from https://github.com/azurewang/lua-resty-postgres One simple way to do this is put the postgres.lua in the default openresty folder:

wget -O /usr/local/openresty/lualib/resty/postgres.lua https://github.com/azurewang/lua-resty-postgres/raw/master/lib/resty/postgres.lua

Live demo

My personal installation of this project is running at http://yr.hveem.no It has a blog post to go with the setup at http://hveem.no/raspberry-pi-davis-vue-weather-station-with-custom-frontend

License

AmatYr uses a BSD 3-clause license.

Copyright (c) 2013, Tor Hveem or Project Contributors.
All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:

* Redistributions of source code must retain the above copyright
  notice, this list of conditions and the following disclaimer.

* Redistributions in binary form must reproduce the above copyright
  notice, this list of conditions and the following disclaimer in the
  documentation and/or other materials provided with the distribution.

* Neither the name of the AmatYr Project, Tor Hveem, nor the names
  of its contributors may be used to endorse or promote products
  derived from this software without specific prior written
  permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.