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cumulusdata_xml.php
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cumulusdata_xml.php
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<?php
// Mats A 2017-01 metzallo@gmail.com
// For the weathertemplate https://weather34.com/homeweatherstation/
// this program uppdates the Cumulus realtime.txt after a call to Davis Weatherlink website with a XML answer
// Documentation is available at http://pysselilivet.blogspot.com/2017/01/install-weather34-with-weatherlink.html
/*
MIT License
Copyright (c) 2017
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
*/
// File layout http://wiki.sandaysoft.com/a/Realtime.txt
// 2017-01-29 To get better trend values for temp and pressure the csv files in chartswudata is used as history info.
// Now trend calculation is using the measures 2 hours ago ->sub(new DateInterval('PT2H'))
// 2017-03-29 Changed filesuffix for files in folder "chartswudata" to .txt
// added cumulus[34] wich is used in Barometer view
// 2017-04-25 Due to a change in W34 it's impossible to use the history files in chartswudata as a base for trendata.
// Extending the file realtime.txt so fields $cumulus[60-63] is used to store the history for press and temp
// 2017-05-04 Added fields min barometer => cumulus[36] and windrun => cumulus[17]. Onlinefil realtime.txt is created if missing
// 2017-05-20 Added fields uv-index => cumulus[43] and solar radiation => cumulus[45] wich will be updated if available, otherwise set to 0
// Change in validation of data from Davis Weatherlink due to that they allways returns an answer even if wrong credentials
// 2017-05-26 Added fields temp high/low time => cumulus[27/29] and wind high/max time [31/33]
// W34 changed use for cumulus[5/6/40] so updated app.
// 2017-06-21 Added an extra temperature sensor, Davis 6372, which in our case mesures water temperature in the sea.
// cumulus[22], inside temp is used if $water_temp is true and value is valid
// 2018-03-19 Davis is updating Weatherlink to WL 2.0 with new host and user is Device ID
// ******* Weather Link credentials. Check documentation !
$wlink_user = "XXXX";
$wlink_pass = "YYYY";
$wlink_apiToken = "ZZZZ";
$water_temp = false;
ob_start();
error_reporting(0);
@ini_set('display_errors', 0);
chdir(dirname(__FILE__));
include('../settings1.php'); // The best schould have been to store the Weatherlink credentials here, but easyweathersetup.php cleans up
date_default_timezone_set($TZ);
$file_templ = "../add_on/realtime.templ"; // Template file
$file_realt = "../add_on/realtime.txt"; // Realtime/Online file
$cumulus = array(); // Current observation data
$cumulus_l = array(); // Last observation data
if (file_exists($file_realt)) { // Create the online file if don't exist
//NOP
}
else {
copy($file_templ,$file_realt);
}
// Fetch template data
$file_wrk = file_get_contents($file_templ); // echo readfile("../add_on/realtime.templ");
$cumulus = explode(" ", $file_wrk); // var_dump ($cumulus);
$handle = fopen($file_realt, "r"); // Fetch last realtime data
$file_wrk = fread($handle, 1024);
fclose($handle);
$cumulus_l = explode(" ", $file_wrk);
// ******* Get the current "conditions" from Davis Weatherlink ******* //
// $xml = simplexml_load_file('http://www.weatherlink.com/xml.php?user='.$wlink_user.'&pass='.$wlink_pass.''); // URL to old API
// ******* URL for Weatherlink 2.0 ******* //
$xml = simplexml_load_file('http://api.weatherlink.com/v1/NoaaExt.xml?user='.$wlink_user.'&pass='.$wlink_pass.'&apiToken='.$wlink_apiToken.''); // var_dump($xml);
// $xml = simplexml_load_file("../add_on/WL.xml");
// If wrong "conditions" data no file update
if ($xml->{'davis_current_observation'}->{'DID'} == $wlink_user) {
// Please note Field no in the Cumulus spec. -1 => array no
$cumulus[0] = date_create($xml->{'observation_time_rfc822'})->format('d/m/y');
$cumulus[1] = date_create($xml->{'observation_time_rfc822'})->format('H:i:s'); // Observation time from Weatherlink
// echo ("$cumulus[1] $cumulus_l[1] \n");
if ($cumulus[1] <> $cumulus_l[1]) { // Update file, not same time/observation as last
// ******* Direct values ******* //
$cumulus[2] = $xml->{'temp_f'};
$cumulus[3] = $xml->{'relative_humidity'};
$cumulus[4] = $xml->{'dewpoint_f'};
$cumulus[5] = $xml->{'wind_mph'}; // Used by W34 for trend calc. Wind this moment
$cumulus[6] = $xml->{'davis_current_observation'}->{'wind_ten_min_avg_mph'};
$cumulus[7] = $xml->{'wind_degrees'};
$cumulus[8] = $xml->{'davis_current_observation'}->{'rain_rate_in_per_hr'}; // Rain rate in/h
$cumulus[9] = $xml->{'davis_current_observation'}->{'rain_day_in'}; // Rain in inches(in)
$cumulus[10] = $xml->{'pressure_in'}; // Pressure inches
// $cumulus[11] = // Current wind direction, calculated by W34 from $cumulus[7]
// $cumulus[12] = // Wind in Beaufort, not used by W34
$cumulus[13] = "mph"; // Windspeed unit
$cumulus[14] = "F"; // Temp unit
$cumulus[15] = "in"; // Pressure unit
$cumulus[16] = "in"; // Rain unit
$cumulus[19] = $xml->{'davis_current_observation'}->{'rain_month_in'}; // Rain acc. Month inches
$cumulus[20] = $xml->{'davis_current_observation'}->{'rain_year_in'}; // Rain acc. Year
$cumulus[22] = $xml->{'davis_current_observation'}->{'temp_in_f'}; // Inside temp
$cumulus[23] = $xml->{'davis_current_observation'}->{'relative_humidity_in'}; // Inside humidity
$cumulus[24] = $xml->{'windchill_f'};
$cumulus[26] = $xml->{'davis_current_observation'}->{'temp_day_high_f'};
$cumulus[27] = date_create($xml->{'davis_current_observation'}->{'temp_day_high_time'})->format('H:i');
$cumulus[28] = $xml->{'davis_current_observation'}->{'temp_day_low_f'};
$cumulus[29] = date_create($xml->{'davis_current_observation'}->{'temp_day_low_time'})->format('H:i');
$cumulus[32] = $xml->{'davis_current_observation'}->{'wind_day_high_mph'};
$cumulus[33] = date_create($xml->{'davis_current_observation'}->{'wind_day_high_time'})->format('H:i');
$cumulus[34] = $xml->{'davis_current_observation'}->{'pressure_day_high_in'};
$cumulus[36] = $xml->{'davis_current_observation'}->{'pressure_day_low_in'};
$cumulus[40] = $xml->{'wind_mph'}; // Windgust avg. 10 min(not avail via XML) use wind this moment instead
// ******* Calculated values ******* //
$hour = date_create($cumulus[1])->format('H'); // Create an save, in realtime.txt, values for trend caculation every hour
$hour_l = date_create($cumulus_l[1])->format('H');
// echo "\n $hour $hour_l \n";
if ($hour <> $hour_l) { // If new hour save data for trendvalues
$cumulus[61] = $cumulus_l[60]; // Save the 1 hour old temp value
$cumulus[60] = $cumulus[2]; // Save current temp F
$cumulus[63] = $cumulus_l[62]; // Save the 1 hour old press value
$cumulus[62] = $cumulus[10]; // Save current press
}
else {
$cumulus[60] = $cumulus_l[60]; // Else, overwrite template data
$cumulus[61] = $cumulus_l[61];
$cumulus[62] = $cumulus_l[62];
$cumulus[63] = $cumulus_l[63];
}
$cumulus[18] = round((floatval($cumulus[10]) - $cumulus[63]),4); // Barometer trend, current - history
$cumulus[25] = floatval($cumulus[2]) - $cumulus[61]; // Temp trend // echo "$cumulus[25] $cumulus[18] \n";
if ($cumulus[0] == $cumulus_l[0]) { // Same date "d/m/y" ?Current and last
// Windrun calculation http://wiki.sandaysoft.com/a/Windrun
$diff = date_diff(date_create($cumulus[1]), date_create($cumulus_l[1])); // Observation time current - observation last
$hours = ($diff->h) + ($diff->i)/60 + ($diff->s)/3600; // Diff, hours + minutes + seconds in hours. var_dump ($hours);
$cumulus[17] = round($cumulus_l[17] + ($cumulus[6]*$hours),4);
// Daily max wind calculation
if ($cumulus[6] > $cumulus_l[30]) { // Same date and if current wind 10 min avg > daily max avg => update daily max wind avg. and time
$cumulus[30] = floatval($cumulus[6]);
$cumulus[31] = date_create($xml->{'observation_time_rfc822'})->format('H:i');
}
else {
// else, update with last data, owerwrite template data
$cumulus[30] = $cumulus_l[30];
$cumulus[31] = $cumulus_l[31];
} // End max wind calculation
}
else { // New day
// Windrun calculation
$hours = date_create($cumulus[1])->format('H') +
date_create($cumulus[1])->format('i')/60; // Hours + minutes, since midnight in hours. var_dump ($cumulus[6]);
$cumulus[17] = round($cumulus[6]*$hours,4); // Ten min avg wind * hours. var_dump ($cumulus[17]);
$cumulus[30] = floatval($cumulus[6]); // Daily max wind calculation. Set daily max wind average and time to current observation
$cumulus[31] = date_create($xml->{'observation_time_rfc822'})->format('H:i');
}
if ($xml->{'davis_current_observation'}->{'uv_index'} == NULL) { // uv-index, if mesure not is available set to 0
$cumulus[43] = 0;
}
else {
$cumulus[43] = $xml->{'davis_current_observation'}->{'uv_index'}; // uv-index OK
}
if ($xml->{'davis_current_observation'}->{'solar_radiation'} == NULL) { // solar radiation, if mesure not is available set to 0
$cumulus[45] = 0;
}
else {
$cumulus[45] = $xml->{'davis_current_observation'}->{'solar_radiation'}; // solar radiation OK
}
$cumulus[46] = round((($cumulus[7] + $cumulus_l[7])/2),0); // Wind direction average, no decimals
if ($water_temp) { // Water temp.
if ($xml->{'davis_current_observation'}->{'temp_extra_1'} == NULL){
//NOP // Inside temp. is used
}
else {
$cumulus[22] = $xml->{'davis_current_observation'}->{'temp_extra_1'}; // Use inside temperature field to show watertemp
}
}
// ******* Update the realtime.txt file ******* //
$file_live = implode(" ",$cumulus);
$handle = fopen($file_realt, "w");
fwrite($handle, $file_live);
fclose($handle); // echo readfile("../add_on/realtime.txt");
} // New date END
} // Wrong "conditions" data END
?>