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<!DOCTYPE html>
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<html>
<head>
<title>Node Power</title>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link rel="shortcut icon" href="/favicon.png" type="image/x-icon" />
<style>
body {
background-image: url("static/chalk.jpg");
}
h2 {
font: bold 24px arial, sans-serif;
}
h4 {
font: bold 16px arial, sans-serif;
}
p {
font: normal 14px arial, sans-serif;
}
#mainContainer {
width: 740px;
text-align: center;
margin: auto;
}
#datetime {
padding: 10px;
font: bold 22px arial, sans-serif;
/*border: 1px solid black;*/
}
#notes {
font: 17px arial, sans-serif;
text-align: left;
padding: 10px;
}
.rowContainer {
display: table;
width: 100%;
/*border: 1px solid black;*/
}
.currentDataCell {
width: 50%;
padding: 10px;
font: bold 18px arial, sans-serif;
text-align: center;
display: table-cell;
vertical-align: middle;
/*border: 1px solid black;*/
}
.dataItems {
padding: 2px;
text-align: left;
line-height: 130%;
display: inline-block;
vertical-align: middle;
/*border: 1px solid black;*/
}
.chartContainer {
padding: 2px;
/*border: 1px solid black;*/
}
img.chart {
width: 100%;
}
span.chartNav {
margin: auto;
}
ul.chartNav {
list-style-type: none;
margin: 10px;
padding: 0;
overflow: hidden;
background-color: #bbb;
text-align: center;
}
li.chartNav {
display: inline-block;
font: bold 18px arial, sans-serif;
color: black;
}
text.chartNav:hover {
background-color: #333;
cursor: pointer;
color: white;
}
text.chartNav {
display: inline-block;
padding: 8px 12px;
}
</style>
</head>
<body onload="main()">
<div id="mainContainer">
<h2><a href="https://github.com/fractalxaos/ham/tree/master/nodepower"
style="text-decoration:none" target="_new">
Node Power</a></h2>
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</div>
</div>
</div>
<div class="rowContainer">
<div class="currentDataCell">
<div class="dataItems">
Charts update every
</div>
<div class="dataItems">
<text id="period"></text> minutes.<br>
</div>
</div>
<div class="currentDataCell">
<div class="dataItems">
Status:
</div>
<div class="dataItems">
<text id="status"></text><br>
</div>
</div>
</div>
<span class="chartNav">
<ul class="chartNav">
<li class="chartNav">Select charts:</li>
<li class="chartNav"><text class="chartNav" onclick="setChartPeriod(1)">
24 hours</text></li>
<li class="chartNav"><text class="chartNav" onclick="setChartPeriod(2)">
4 weeks</text></li>
<li class="chartNav"><text class="chartNav" onclick="setChartPeriod(3)">
12 months</text></li>
</ul>
</span>
<br>
<div class="chartContainer">
<img class="chart" id="current_g">
</div>
<div class="chartContainer">
<img class="chart" id="voltage_g">
</div>
<div class="chartContainer">
<img class="chart" id="power_g">
</div>
<div class="chartContainer">
<img class="chart" id="battemp_g">
</div>
<div class="chartContainer">
<img class="chart" id="ambtemp_g">
</div>
<div id="notes">
<b>NOTES:</b>
<ul>
<li>Node sensor project plans and software available at
<a href="https://github.com/fractalxaos/ham/tree/master/nodepower" target="_new">
<i>Github.com</i>
</a>.</li>
<li>Project plans include detailed instructions on how to use a Raspberry
Pi Zero to add power bus and battery temperature monitoring
for your AREDN node.</li>
<li>Displayed data may be delayed by as much as 2 seconds from
time of actual measurement.</li>
<li>Project sponsored by
<a href=https://willamettevalleymesh.net/ TARGET="_NEW">
<i>Willamette Valley Mesh Network</i></a>, Salem, Oregon.</li>
<li>Designed by Jeff Owrey, KA7JLO, 2021.</li>
<li> Released under Creative Commons License.</li>
</ul>
</div><br><br>
</div>
<script>
/* Global constants */
var sensorDataUrl = "dynamic/powerData.js";
/* Global DOM objects */
// Chart Elements
var current_g = document.getElementById("current_g");
var voltage_g = document.getElementById("voltage_g");
var power_g = document.getElementById("power_g");
var battemp_g = document.getElementById("battemp_g");
var ambtemp_g = document.getElementById("ambtemp_g");
// Text Elements
var date_t = document.getElementById("date");
var time_t = document.getElementById("time");
var current_t = document.getElementById("current");
var voltage_t = document.getElementById("voltage");
var power_t = document.getElementById("power");
var battemp_t = document.getElementById("battemp");
var ambtemp_t = document.getElementById("ambtemp");
var status_t = document.getElementById("status");
var period_t = document.getElementById("period");
/* Global objects */
var httpRequest = new XMLHttpRequest();
/* Global variables */
var graphPeriod;
function main() {
// Register call back function to process client http requests
httpRequest.onreadystatechange = function() {
if (httpRequest.readyState == 4 && httpRequest.status == 200) {
var dataArray = JSON.parse(httpRequest.responseText);
displayData(dataArray[0]);
} else if (httpRequest.readyState == 4 && httpRequest.status == 404) {
displayOfflineStatus();
}
};
httpRequest.ontimeout = function(e) {
displayOfflineStatus();
};
getSensorData();
graphPeriod = 1;
getSensorGraphs();
setInterval(getSensorData, 2000);
setInterval(getSensorGraphs, 600000);
}
function getSensorData() {
httpRequest.open("GET", sensorDataUrl, true);
httpRequest.timeout = 3000;
httpRequest.send();
}
function setChartPeriod(n) {
graphPeriod = n;
getSensorGraphs();
}
function getSensorGraphs() {
var d = new Date;
var pfx;
switch(graphPeriod) {
case 1:
pfx = "24hr_";
break;
case 2:
pfx = "4wk_";
break;
case 3:
pfx = "12m_";
break;
}
current_g.src = "dynamic/" + pfx + "current.png?ver=" + d.getTime();
voltage_g.src = "dynamic/" + pfx + "voltage.png?ver=" + d.getTime();
power_g.src = "dynamic/" + pfx + "power.png?ver=" + d.getTime();
battemp_g.src = "dynamic/" + pfx + "battemp.png?ver=" + d.getTime();
ambtemp_g.src = "dynamic/" + pfx + "ambtemp.png?ver=" + d.getTime();
}
function displayData(dataItem) {
displayTime(dataItem);
current_t.innerHTML =
(Number(dataItem.current).toFixed(2)).toString();
voltage_t.innerHTML =
(Number(dataItem.voltage).toFixed(2)).toString();
power_t.innerHTML =
(Number(dataItem.power).toFixed(2)).toString();
battemp_t.innerHTML =
(Number(dataItem.battemp).toFixed(2)).toString();
ambtemp_t.innerHTML =
(Number(dataItem.ambtemp).toFixed(2)).toString();
period_t.innerHTML = dataItem.period / 60;
status_t.innerHTML = "online";
status_t.style.color = "green";
}
function displayOfflineStatus() {
displayHostTime();
current_t.innerHTML = "";
voltage_t.innerHTML = "";
power_t.innerHTML = "";
battemp_t.innerHTML = "";
ambtemp_t.innerHTML = "";
period_t.innerHTML = " -n/a- ";
status_t.innerHTML = "offline";
status_t.style.color = "red";
}
function displayTime(dataItem) {
var date, time, hourminute;
var localDateObj, localTimeZone, timeZoneShift;
date = dataItem.time.split(" ")[0];
time = dataItem.time.split(" ")[1];
hourminute = time.split(":")[0] + ":" + time.split(":")[1];
localDateObj = new Date();
localTimeZone = localDateObj.getTimezoneOffset() / 60;
if (Math.sign(localTimeZone)) {
timeZoneShift = "-";
} else {
timeZoneShift = "+"
}
date_t.innerHTML = date;
time_t.innerHTML = hourminute + " <small>(UTC" + timeZoneShift +
localTimeZone + ")</small>";
}
function displayHostTime() {
var d = new Date();
var localTimeZone, timeZoneShift;
localTimeZone = d.getTimezoneOffset() / 60;
if (Math.sign(localTimeZone)) {
timeZoneShift = "-";
} else {
timeZoneShift = "+"
}
date_t.innerHTML = d.getMonth() + "/" + d.getDate() + "/" +
d.getFullYear();
time_t.innerHTML = d.getHours() + ":" + d.getMinutes() +
" <small>(UTC" + timeZoneShift + localTimeZone + ")</small>";
}
</script>
</body>
</html>
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