diff --git a/nodes/hardware/78-ledborg.html b/nodes/hardware/78-ledborg.html new file mode 100644 index 000000000..e97da1b0a --- /dev/null +++ b/nodes/hardware/78-ledborg.html @@ -0,0 +1,50 @@ + + + + + + + diff --git a/nodes/hardware/78-ledborg.js b/nodes/hardware/78-ledborg.js new file mode 100644 index 000000000..6b117ee61 --- /dev/null +++ b/nodes/hardware/78-ledborg.js @@ -0,0 +1,51 @@ +/** + * 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);