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node-red-nodes/hardware/blink/77-blink1.js

60 lines
2.2 KiB
JavaScript

/**
* 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(process.env.NODE_RED_HOME+"/red/red");
var Blink1 = require("node-blink1");
function Blink1Node(n) {
RED.nodes.createNode(this,n);
this.fade = n.fade||0;
var node = this;
try {
var p1 = /^\#[A-Fa-f0-9]{6}$/
var p2 = /[0-9]+,[0-9]+,[0-9]+/
this.on("input", function(msg) {
if (blink1) {
if (p1.test(msg.payload)) {
// if it is a hex colour string
var r = parseInt(msg.payload.slice(1,3),16);
var g = parseInt(msg.payload.slice(3,5),16);
var b = parseInt(msg.payload.slice(5),16);
if (node.fade == 0) { blink1.setRGB( r, g, b ); }
else { blink1.fadeToRGB(node.fade, r, g, b ); }
}
else if (p2.test(msg.payload)) {
// if it is a r,g,b triple
var rgb = msg.payload.split(',');
if (node.fade == 0) { blink1.setRGB(parseInt(rgb[0])&255, parseInt(rgb[1])&255, parseInt(rgb[2])&255); }
else { blink1.fadeToRGB(node.fade, parseInt(rgb[0])&255, parseInt(rgb[1])&255, parseInt(rgb[2])&255); }
}
else {
// you can add fancy colours by name here if you want...
node.warn("Blink1 : invalid msg : "+msg.payload);
}
}
else {
node.warn("No Blink1 found");
}
});
var blink1 = new Blink1.Blink1();
}
catch(e) {
node.error("No Blink1 found");
}
}
RED.nodes.registerType("blink1",Blink1Node);