58 lines
1.7 KiB
JavaScript
58 lines
1.7 KiB
JavaScript
|
|
module.exports = function(RED) {
|
|
"use strict";
|
|
var HID = require('node-hid');
|
|
var device;
|
|
var node;
|
|
|
|
function DigiRGBNode(n) {
|
|
RED.nodes.createNode(this,n);
|
|
node=this;
|
|
|
|
var devices = HID.devices(0x16c0,0x05df);
|
|
for (var i=0; i< devices.length; i++) {
|
|
if (devices[i].product == 'DigiUSB') {
|
|
node.log("found: " + devices[i].path);
|
|
try {
|
|
device = new HID.HID(devices[i].path);
|
|
break;
|
|
}
|
|
catch (e) {
|
|
node.log(e)
|
|
}
|
|
}
|
|
}
|
|
|
|
var p1 = /^\#[A-Fa-f0-9]{6}$/
|
|
var p2 = /[0-9]+,[0-9]+,[0-9]+/
|
|
|
|
if (device) {
|
|
this.on("input", function(msg) {
|
|
if (p1.test(msg.payload)) {
|
|
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);
|
|
device.sendFeatureReport([115,r,g,b]);
|
|
}
|
|
else if (p2.test(msg.payload)) {
|
|
var args = msg.payload.split(',');
|
|
if (args.length == 3) {
|
|
device.sendFeatureReport([115,parseInt(args[0]),parseInt(args[1]),parseInt(args[2])]);
|
|
}
|
|
}
|
|
else {
|
|
node.warn("incompatable input - " + msg.payload);
|
|
}
|
|
});
|
|
}
|
|
else {
|
|
node.warn("no digispark RGB found");
|
|
}
|
|
|
|
this.on('close', function() {
|
|
if (device) { device.close(); }
|
|
});
|
|
}
|
|
RED.nodes.registerType("digiRGB",DigiRGBNode);
|
|
}
|