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Add PiBorg's LEDBorg to the hardware family... (only works on Pi - and only if installed :-)

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Dave C-J
2013-09-15 19:39:18 +01:00
parent 585e50229e
commit 5a5a4644db
2 changed files with 101 additions and 0 deletions
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nodes/hardware/78-ledborg.html Normal file
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<!--
Copyright 2013 IBM Corp.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<script type="text/x-red" data-template-name="ledborg">
<div class="form-row">
<label for="node-input-name"><i class="icon-tag"></i> Name</label>
<input type="text" id="node-input-name" placeholder="Name">
</div>
<div class="form-tips">Expects a msg.payload with PiBorg three digit rgb colour string. 000 -> 222</div>
</script>
<script type="text/x-red" data-help-name="ledborg">
<p>PiBorg LedBorg LED output node. Expects a <b>msg.payload</b> with a three digit rgb triple, from <b>000</b> to <b>222</b>.</p>
<p>See <i><a href="http://www.piborg.com/ledborg/install" target="_new">the PiBorg site</a></i> for more information.</p>
<p>You can also now use a <b>msg.payload</b> in the standard hex format "#rrggbb". The clip levels are :</p>
<p><pre>0x00 - 0x57 = off<br/>0x58 - 0xA7 = 50%<br/>0xA8 - 0xFF = fully on</pre></p>
</script>
<script type="text/javascript">
RED.nodes.registerType('ledborg',{
category: 'output',
color:"GoldenRod",
defaults: {
name: {value:""}
},
inputs:1,
outputs:0,
icon: "light.png",
align: "right",
label: function() {
return this.name||"ledborg";
},
labelStyle: function() {
return this.name?"node_label_italic":"";
}
});
</script>

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nodes/hardware/78-ledborg.js Normal file
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/**
* Copyright 2013 IBM Corp.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
**/
var RED = require("../../red/red");
var util = require('util');
var fs = require('fs');
// read from /dev/ledborg to see if it exists - if not then don't even show the node.
try { var rc = fs.readFileSync("/dev/ledborg"); }
catch (err) { util.log("[77-ledborg.js] Error: PiBorg hardware : LedBorg not found"); return; }
function LedBorgNode(n) {
RED.nodes.createNode(this,n);
var p1 = /[0-2][0-2][0-2]/
var p2 = /^\#[A-Za-z0-9]{6}$/
var node = this;
this.on("input", function(msg) {
if (p1.test(msg.payload)) {
fs.writeFile('/dev/ledborg', msg.payload, function (err) {
if (err) node.warn(msg.payload+" : No LedBorg found");
});
}
if (p2.test(msg.payload)) {
var r = Math.floor(parseInt(msg.payload.slice(1,3),16)/88).toString();
var g = Math.floor(parseInt(msg.payload.slice(3,5),16)/88).toString();
var b = Math.floor(parseInt(msg.payload.slice(5),16)/88).toString();
fs.writeFile('/dev/ledborg', r+g+b, function (err) {
if (err) node.warn(r+g+b+" : No LedBorg found");
});
}
else {
node.warn("Invalid LedBorg colour code");
}
});
}
RED.nodes.registerType("ledborg",LedBorgNode);