60a61dffae
The BeagleBone Weather cape enhances the BeagleBone's capabilities by providing environment sensors (temperature, humidity, pressure, and ambient light level). The weatherstation demo is a port of the bonescript weatherstation to Minix. It provides a nice visual display of the sensor data in a web browser. The code is installed to /usr/share/beaglebone/weather on 'earm' and an embedded web server is started at boot time on port 80 when the cape is attached. Further details are provided in the README.txt file. Change-Id: I1596a2b66b213762ace26c0c750c8154c76b5c6e
98 lines
2.4 KiB
HTML
98 lines
2.4 KiB
HTML
<!doctype html>
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<html lang="en">
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<head>
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<meta charset="utf-8" />
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<title>Weather Station - Powered by Minix and BeagleBone</title>
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<link rel="stylesheet" type="text/css" media="all" href="style.css"/>
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<script type="text/javascript" src="jquery.js"></script>
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<script type="text/javascript" src="processing.js"></script>
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<script type="text/javascript" src="spin.js"></script>
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<script type="text/javascript">
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// Refresh weather data every 3 seconds.
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var weather_fetch_interval = 3 * 1000;
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// Location of the weather data.
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var weather_json_url = 'weather.json';
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// Loading animation while the initial fetch is being performed.
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var spinner = new Spinner().spin();
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// Callback for fetching weather reports.
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function weather_cb_fetch() {
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var now;
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var url;
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// Make the URL of every request unique to help ensure
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// that the browser doesn't cache the JSON data.
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now = new Date();
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url = weather_json_url + '?timestamp=' + now.getTime();
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$.getJSON(url, weather_cb_process);
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}
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// Callback for processing weather reports.
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function weather_cb_process(data) {
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set_lux(data.illuminance);
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set_temp(data.temperature);
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set_humidity(data.humidity);
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set_pressure(data.pressure/100); // Pa to hPa
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// hide the loading message once everything is loaded
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$("#loading").fadeOut("slow", function(){
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spinner.stop();
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});
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// weather station is initially hidden
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// fade in after first paint.
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$("#weatherstation").fadeIn("slow");
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// Queue the next server request.
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setTimeout(weather_cb_fetch, weather_fetch_interval);
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}
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function weather_init() {
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// Start the loading animation spinning.
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$("#loading").append(spinner.el);
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// Fetch the initial weather report.
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weather_cb_fetch();
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}
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// Start getting weather reports.
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$(weather_init);
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</script>
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<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1" />
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</head>
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<body>
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<!--
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Page loading animation (spin.js).
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Hidden after weather canvases are loaded.
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-->
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<div id="loading"> </div>
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<!--
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Thermometer, gauges, and light level dot.
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Initially hidden while loading/painting.
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-->
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<div id="weatherstation">
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<canvas id="barometerCanvas"></canvas>
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<canvas id="thermometerCanvas"></canvas>
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<canvas id="lightCanvas"></canvas>
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</div>
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<script type="text/javascript" src="weatherstation.js"></script>
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</body>
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</html>
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