@rob-loosx This is an excellent idea, much more intuitive than "push and twist".
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What is it?
Hub TCP server for using the IR module via HTTP.
Both to record of new signals with a given name and to play them back.
Using net since SDK doesn't have the nodejs HTTP-module available.Why?
I really wanted to be able to call my IR module from my phone homescreen or Google Home (via IFTTT). I got it working so I wanted to share it if anyone else find it helpful 🙂The code is what could be called a POC, so code feedback and/or changes are totally welcome.
How does it work?
Record a signal GET {ip}:1338?record={name_of_signal} Plays a signal GET {ip}:1338?cmd={name_of_signal} Cancel recording GET {ip}:1338?cancelRecord=trueExample;
call GET 192.168.0.100:1338?record=volume_up Press Volume Up on remote towards IR module returns 200 OK Signal volume_up stored! call GET 192.168.0.100:1338?cmd=volume_up returns 200 OK Signal sent! Volume goes up 🙂The code
module.json
{ "name": "IRTCP", "version": "1.0.0" }main.js
// main.js const net = require("net"); const ir = require("ir"); const datastore = require("datastore"); const utils = require("./utils"); const respondToClient = function(c, statusCode, message) { c.write( "HTTP/1.1 " + statusCode + "\r\n" + "\r\n" ); c.write(message); c.end(); } const handleCmd = function(c, cmd) { datastore.get(cmd, function(err, strBuffer) { if (!err && strBuffer) { var signal = new Uint32Array(utils.str2ab(strBuffer)); if (!ArrayBuffer.isView(signal)) { return respondToClient(c, "422 Unprocessable Entity", "Unknown signal"); } ir.play(signal, function(err) { if (!err) { return respondToClient(c, "200 OK", "Signal sent"); } return respondToClient(c, "500 Internal Server Error", "Couldn't send signal"); }); } else { return respondToClient(c, "422 Unprocessable Entity", "Unknown cmd"); } }); } const handleRecord = function(c, name) { /* TODO: add a timeout for listening for complete */ ir.record(); console.log("recording signal..."); ir.on("recordComplete", function(signal) { datastore.put(name, utils.ab2str(signal.buffer), function(err) { if (!err) { console.log("Signal " + name + " stored!"); return respondToClient(c, "200 OK", "Signal " + name + " stored!"); } else { return respondToClient(c, "500 Internal Server Error", "Couldn't store signal"); } }); }); } var server = net.createServer(function(c) { console.log('server connected'); c.on('end', function() { console.log('server disconnected'); }); c.on('data', function(data) { console.log(data); var match = data.toString().match(/GET \/\?.[^ ]*/); if (!match) { return respondToClient(c, "403 Forbidden", "Forbidden method"); } var params = utils.parseParams(match[0].split("GET /?")[1]); if (params.cmd) { return handleCmd(c, params.cmd); } else if (params.record && params.record.length > 0) { return handleRecord(c, params.record); } else if (params.cancelRecord) { ir.cancelRecord(); console.log("recording canceled!"); return respondToClient(c, "200 OK", "Recording canceled!"); } else { return respondToClient(c, "403 Forbidden", "Forbidden params"); } }); }); server.listen(1338, function() { console.log('server bound', server.address().port); });utils.js
const ab2str = function(buf) { return String.fromCharCode.apply(null, new Uint16Array(buf)); } const str2ab = function(str) { var buf = new ArrayBuffer(str.length*2); var bufView = new Uint16Array(buf); for (var i=0, strLen=str.length; i < strLen; i++) { bufView[i] = str.charCodeAt(i); } return buf; } const parseParams = function (s) { var obj = {}; var arr = s.split("&"); var temp; for (i = 0; i < arr.length; i++) { temp = arr[i].split("="); obj[temp[0]] = temp[1]; } return obj; }; exports.ab2str = ab2str; exports.str2ab = str2ab; exports.parseParams = parseParams; -
I have successfully implemented the SDK to create an OSC module that send a trigger to QLab. However, it only works once. In other words, I press the button, it send the OSC string to QLab, everything works as it should. But then it's as if it stops listening for another button press. Am I missing something? Here is my JS in main.js:
var oscClient = require("./osc").create("192.168.1.202", 53000); var buttonManager = require("buttons"); buttonManager.on("buttonDown", function(obj) { oscClient.send("/cue/2/start", function() { console.log("message sent"); }); });``` -
hubsdk.flic.io is currently down. Please fix this.