v3_firmware/payload/index.html

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<!doctype html>
<html>
<head>
<title>AttNode v3 Payload Decoder Generator</title>
<meta name="description" content="AttNode v3 Payload Decoder Generator">
<meta name="author" content="Stefan Brand">
<style>
body {
background-color: #e9eaec;
font-family: Roboto, sans-serif;
font-size: 1em;
padding: 24px;
}
div {
background: #f8f8f8;
border: 1px solid #ccc;
padding: 1em 2em;
margin-bottom: 40px;
}
pre {
border: 1px solid black;
font-family: monospace, monospace;
font-size: 1em;
padding: 4px;
}
</style>
</head>
<body>
<div class="title">
<h1>AttNode v3 Payload Decoder Generator</h1>
</div>
<div class="header">
<p>Please choose the Sensors that you have enabled in the Firmware. The Payload Decoder code below will change accordingly.</p>
<p>Notes:</p>
<ul>
<li>You can set arbitary combinations of Sensors here. Not all of them are useable / technically possible</li>
<li>Enable only the sensors in the decoder, which are enabled in the firmware for a particular device. The Decoder does not detect which sensors are present in the LoRa paket. You can set a payload decoder per device in TTN v3 to have nodes with different sensors in one application</li>
<li>The Payload Decoder shown here is for TTN v3 / The Things Stack v3. If you use other LoRa Stacks you may have to change the <b>decodeUplink</b> function and its return value.</li>
</ul>
</div>
<div class="chooser">
<h3>Sensors:</h3>
<form id="chooserForm">
<label>
<input type="checkbox" value="mhz19c" onchange="updateDecoder();">
MH-Z19C
</label>
<label>
<input type="checkbox" value="sg112a" onchange="updateDecoder();">
SG112A
</label>
<label>
<input type="checkbox" value="sensairs8" onchange="updateDecoder();">
Sensair S8
</label>
<label>
<input type="checkbox" value="scd30" onchange="updateDecoder();">
SCD30
</label>
<label>
<input type="checkbox" value="bme280" onchange="updateDecoder();">
BME280
</label>
<label>
<input type="checkbox" value="sht21" onchange="updateDecoder();">
SHT21
</label>
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<label>
<input type="checkbox" value="sps30" onchange="updateDecoder();">
SPS30
</label>
<label>
<input type="checkbox" value="hm330x" onchange="updateDecoder();">
HM330x
</label>
<label>
<input type="checkbox" value="brightness" onchange="updateDecoder();">
Brightness
</label>
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<label>
<input type="checkbox" value="ds18b20" onchange="updateDecoder();">
DS18B20
</label>
</form>
<h3>Payload Decoder:</h3>
<pre id="pd">
</pre>
</div>
<a href="https://www.attno.de/">Back to attno.de Main Page</a>
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<script>
var sensors = {
"mhz19c": [
{ "name": "co2ppm", "type": "UInt16", "factor": 1, "multi": false },
],
"sg112a": [
{ "name": "co2ppm", "type": "UInt16", "factor": 1, "multi": false },
],
"sensairs8": [
{ "name": "co2ppm", "type": "UInt16", "factor": 1, "multi": false },
],
"scd30": [
{ "name": "co2ppm", "type": "UInt16", "factor": 1, "multi": false },
{ "name": "temperature", "type": "Int16", "factor": 100, "multi": false },
{ "name": "humidity", "type": "UInt16", "factor": 100, "multi": false },
],
"bme280": [
{ "name": "temperature", "type": "Int32", "factor": 100, "multi": false },
{ "name": "humidity", "type": "Int32", "factor": 100, "multi": false },
{ "name": "pressure", "type": "Int32", "factor": 100, "multi": false },
],
"sht21": [
{ "name": "temperature", "type": "Int32", "factor": 100, "multi": false },
{ "name": "humidity", "type": "Int32", "factor": 100, "multi": false },
],
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"sps30": [
{ "name": "pm1", "type": "UInt16", "factor": 1, "multi": false },
{ "name": "pm2_5", "type": "UInt16", "factor": 1, "multi": false },
{ "name": "pm4", "type": "UInt16", "factor": 1, "multi": false },
{ "name": "pm10", "type": "UInt16", "factor": 1, "multi": false },
{ "name": "typPMsize", "type": "UInt16", "factor": 1, "multi": false },
],
"hm330x": [
{ "name": "pm1", "type": "UInt16", "factor": 1, "multi": false },
{ "name": "pm2_5", "type": "UInt16", "factor": 1, "multi": false },
{ "name": "pm10", "type": "UInt16", "factor": 1, "multi": false },
],
"brightness": [
{ "name": "brightness", "type": "UInt16", "factor": 1, "multi": false },
],
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"ds18b20": [
{ "name": "t", "type": "Int16", "factor": 100, "multi": true },
]
};
var typelen = {"Int32": "4", "Int16": "2", "UInt16": "2"};
function updateDecoder() {
var output = document.getElementById("pd");
output.innerHTML = "function bytesToInt16(bytes, start) {\n";
output.innerHTML += " var out = ((bytes[start]) | (bytes[start+1] << 8 ));\n";
output.innerHTML += " var sign = bytes[start+1] & (1 << 7);\n";
output.innerHTML += " if (sign)\n";
output.innerHTML += " out = 0xFFFF0000 | out;\n";
output.innerHTML += " return out;\n";
output.innerHTML += "}\n\n";
output.innerHTML += "function bytesToUInt16(bytes, start) {\n";
output.innerHTML += " return ((bytes[start]) | (bytes[start+1] << 8 ));\n";
output.innerHTML += "}\n\n";
output.innerHTML += "function bytesToInt32(bytes, start) {\n";
output.innerHTML += " return ((bytes[start]) | (bytes[start+1] << 8) | (bytes[start+2] << 16) | (bytes[start+3] << 24));\n";
output.innerHTML += "}\n\n";
output.innerHTML += "function decodeUplink(input) {\n";
output.innerHTML += " var decoded = {};\n";
output.innerHTML += " /* Battery Voltage, always enabled */\n";
output.innerHTML += " decoded.v = (input.bytes[0] * 20) / 1000.0;\n\n";
output.innerHTML += " var i = 1;\n";
var elements = document.getElementById("chooserForm").elements;
for (var i = 0, element; element = elements[i++];) {
if (element.type === "checkbox")
if (element.checked) {
sensors[element.value].forEach(sensor => {
if (sensor.multi) {
output.innerHTML += " var n = 1;\n";
output.innerHTML += " for (var j = i; j < input.bytes.length-1; j+=2) {\n";
if (sensor.factor > 1) {
output.innerHTML += " decoded['" + sensor.name + "' + n] = bytesTo" + sensor.type + " (input.bytes, j);\n";
} else {
output.innerHTML += " decoded['" + sensor.name + "' + n] = bytesTo" + sensor.type + " (input.bytes, j)/" + sensor.factor + ";\n";
}
output.innerHTML += " n++;\n";
output.innerHTML += " }\n";
} else {
if (sensor.factor > 1) {
output.innerHTML += " decoded." + sensor.name + " = bytesTo" + sensor.type + "(input.bytes, i)/" + sensor.factor + ";\n";
} else {
output.innerHTML += " decoded." + sensor.name + " = bytesTo" + sensor.type + "(input.bytes, i);\n";
}
output.innerHTML += " i += " + typelen[sensor.type] + ";\n";
}
});
}
}
output.innerHTML += "\n\n return {\n";
output.innerHTML += " data: decoded,\n";
output.innerHTML += " warnings: [],\n";
output.innerHTML += " errors: []\n";
output.innerHTML += " };\n";
output.innerHTML += "}\n";
}
</script>
</body>
</html>