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Wilberforce

Member since Feb 2016 • Last active Aug 2017
  • 20 conversations
  • 439 comments

Most recent activity

  • Questions about connecting to Alexa?
    in Interfacing •
    Avatar for Wilberforce

    Hi,

    Use a service like this:

    https://www.noip.com/free

    This runs as a unix daemon, and updates your chosen dns name with the current up address of your pi. You choose a sub-domain off the main domains they offer, and they is what you register with other services.

  • started
    • 9 comments
    • 80 views
    @Gordon replied

  • Linux Espruino - websocket send - 4 jsVars leaking each time
    in Other Boards •
    Avatar for Wilberforce

    @Gordon
    Thanks very much Gordon for your help!

    I have added the ws.on('close') and confirmed it works, and also rebuilt with your fix and confirmed that throws an error too!

    When you mentioned quit() above - that does not work in the left side of ide - where do you use this?

  • Unable to get puck to stay in bootloader mode.
    in Puck.js •
    Avatar for Wilberforce

    Check the battery voltage or swap with a fresh battery...

  • Linux Espruino - websocket send - 4 jsVars leaking each time
    in Other Boards •
    Avatar for Wilberforce

    Thanks for the reply..

    In chrome on the receiving end of the web socket, I can see the json packets coming in 106 bytes at a time, so they are getting sent once... so I wonder if this is a bug related to the fact that the websocket does not close, so the current data gets added to the queue, the most recent addition gets sent, but because the socket is not closed, the queue keeps on growing. Probably not explained myself very well!

    I'll have to try the quit() tomorrow..

  • Linux Espruino - websocket send - 4 jsVars leaking each time
    in Other Boards •
    Avatar for Wilberforce

    Here is the code (which won't run in isolation) as it requires files too...

    var model = {
  setpoint : 66,
  timer : 60,
  temp: [50,50]
  //  counter : 3600
};

var event_cb = {
  timer : function (t) {
    model.counter = t * 60;
  }
};

event_cb.timer(model.timer);

function tick() {
  var d = new Date(model.counter * 1000);
  model.counterstr = d.toString().split(' ')[4];
  model.counter -= 1;
  model.free=process.memory().free;
  model.usage=process.memory().usage;

}

setInterval(tick, 1000);



function onPageRequest(req, res) {

  var a = url.parse(req.url, true);
  /**/
 // console.log(a);

  console.log({sckt:req.sckt});
  console.log(req.headers);
  //console.log(req.method);
   /**/
  var file = a.pathname;
  if (file == '/') {
    file = '/index.htm';
  }
  var headers = {};
  if (req.method == 'PUT')
    return put_file(req, res);
  var f;
  try {
    f = E.openFile('www' + file, "r");
  } catch (e) {
    // look for compressed
    try {
      f = E.openFile('www' + file + '.gz', "r");
      headers['Content-Encoding'] = 'gzip';
    } catch (e) {
      console.log('no file' + file);
    }
  }

  if (f !== undefined) {
    var mime = 'text/html';
    if (file.substr(-2) == 'js')
      mime = 'application/javascript';
    if (file.substr(-3) == 'css')
      mime = 'text/css';
    if (file.substr(-3) == 'ico')
      mime = 'image/vnd.microsoft.icon';

    headers['Content-Type'] = mime;

    res.writeHead(200, headers);
    console.log('started:' + file );
    f.pipe(res, {
      chunkSize : 512,
      end : false,
      complete : function () {
        console.log("Complete:" + file);
        f.close();
        res.end();
      }
    });

  } else {
    res.writeHead(404, {
      'Content-Type' : 'text/plain'
    });
    res.end("404: Page " + a.pathname + " not found");
  }
}

var server = require('ws').createServer(onPageRequest­);

var update_model=false;

server.on("websocket", function (ws) {
  ws.on('message', function (msg) { //console.log((msg));
    var data = JSON.parse(msg);
    console.log(data);
    if ( update_model ) {
    for (var o in data) {
      //console.log( o, data[o] );
      model[o] = data[o];
      if (event_cb.hasOwnProperty(o)) {
        event_cb[o](data[o]);
      }
    }
    }
  });
  function send_model() {
    var s=JSON.stringify(model);
    ws.send(s);
    s=null;
  }
  setInterval(send_model, 1000);
});

function start() {
  server.listen(8080);
}

start();

  • Linux Espruino - websocket send - 4 jsVars leaking each time
    in Other Boards •
    Avatar for Wilberforce

    This is running on the linux version of espurino, and will apply to other boards too.

    It looks like the dSnd part of the underyling socket is growing each second evert time the model is updated...

    I've tried to do a simplier use case, but have not yet got a simple case working, so I'll just post what I have so far...

    the output of trace() shows the dSnd string getting larger each iteration...

    >trace();
#1[r2,l1] Object {
  #2[r1,l2] Name String [1 blocks] "\xFF"    #3[r1,l2] Object {
      #6[r1,l2] Name String [1 blocks] "timers"        #7[r2,l1] Array(8) [
          #382[r1,l2] Name Integer 1            #378[r1,l1] Object {
              #380[r1,l2] Name String [1 blocks] "time"= int 705003
              #381[r1,l2] Name String [1 blocks] "interval"= int 1000000
              #379[r1,l2] Name String [1 blocks] "callback"                #358[r2,l1] ...
 
            }
          #834[r1,l2] Name Integer 3            #830[r1,l1] Object {
              #819[r1,l2] Name String [1 blocks] "time"= int 693088
              #820[r1,l2] Name String [1 blocks] "interval"= int 1000000
              #803[r1,l2] Name String [1 blocks] "callback"                #890[r2,l1] Function {
                  #867[r1,l2] Name String [1 blocks] "\xFFcod"                    #1006[r1,l1] FlatString [3 blocks] "var s=JSON.stringify(model);\n    ws.send(s);\n    s=null;"
                  #779[r1,l2] Name String [1 blocks] "\xFFsco"                    #847[r2,l1] Function {
                      #781[r1,l2] Name Param "ws"                         #926[r1,l1] Object {
                          #927[r1,l2] Name String [2 blocks] "__proto__"                            #151[r4,l1] ...
 
                          #951[r1,l2] Name String [1 blocks] "socket"                            #945[r1,l1] Object {
                              #944[r1,l2] Name String [2 blocks] "__proto__"                                #394[r4,l1] ...
 
                              #863[r1,l2] Name String [1 blocks] "dSnd"                                #5[r1,l1] String [1171 blocks] "\x81j{\"setpoint\":66,\"timer\":\"90\",­\"temp\":[50,50],\"counter\":5373,\"coun­terstr\":\"01:29:34\",\"free\":3415,\"us­age\":681}\x81j{\"setpoint\":66,\"timer\­":\"90\",\"temp\":[50,50],\"counter\":53­73,\"counterstr\":\"01:29:34\",\"free\":­3415,\"usage\":681}\x81j{\"setpoint\":66­,\"timer\":\"90\",\"temp\":[50,50],\"cou­nter\":5400,\"counterstr\":\"01:29:33\",­\"free\":3238,\"usage\":858}\x81j{\"setp­oint\":66,\"timer\":\"90\",\"temp\":[50,­50],\"counter\":5399,\"counterstr\":\"01­:30:00\",\"free\":3234,\"usage\":862}\x8­1j{\"setpoint\":66,\"timer\":\"90\",\"te­mp\":[50,50],\"counter\":5398,\"counters­tr\":\"01:29:59\",\"free\":3229,\"usage\­":867}\x81j{\"setpoint\":66,\"timer\":\"­90\",\"temp\":[50,50],\"counter\":5397,\­"counterstr\":\"01:29:58\",\"free\":3225­,\"usage\":871}\x81j{\"setpoint\":66,\"t­imer\":\"90\",\"temp\":[50,50],\"counter­\":5396,\"counterstr\":\"01:29:57\",\"fr­ee\":3220,\"usage\":876}\x81j{\"setpoint­\":66,\"timer\":\"90\",\"temp\":[50,50],­\"counter\":5395,\"counterstr\":\"01:29:­56\",\"free\":3216,\"usage\":880}\x81j{\­"setpoint\":66,\"timer\":\"90\",\"temp\"­:[50,50],\"counter\":5394,\"counterstr\"­:\"01:29:55\",\"free\":3211,\"usage\":88­5}\x81j{\"setpoint\":66,\"timer\":\"90\"­,\"temp\":[50,50],\"counter\":5393,\"cou­nterstr\":\"01:29:54\",\"free\":3207,\"u­sage\":889}\x81j{\"setpoint\":66,\"timer­\":\"90\",\"temp\":[50,50],\"counter\":5­392,\"counterstr\":\"01:29:53\",\"free\"­:3202,\"usage\":894}\x81j{\"setpoint\":6­6,\"timer\":\"90\",\"temp\":[50,50],\"co­unter\":5391,\"counterstr\":\"01:29:52\"­,\"free\":3198,\"usage\":898}\x81j{\"set­point\":66,\"timer\":\"90\",\"temp\":[50­,50],\"counter\":5390,\"counterstr\":\"0­1:29:51\",\"free\":3193,\"usage\":903}\x­81j{\"setpoint\":66,\"timer\":\"90\",\"t­emp\":[50,50],\"counter\":5389,\"counter­str\":\"01:29:50\",\"free\":3189,\"usage­\":907}\x81j{\"setpoint\":66,\"timer\":\­"90\",\"temp\":[50,50],\"counter\":5388,­\"counterstr\":\"01:29:49\",\"free\":318­4,\"usage\":912}\x81j{\"setpoint\":66,\"­timer\":\"90\",\"temp\":[50,50],\"counte­r\":5387,\"counterstr\":\"01:29:48\",\"f­ree\":3180,\"usage\":916}\x81j{\"setpoin­t\":66,\"timer\":\"90\",\"temp\":[50,50]­,\"counter\":5386,\"counterstr\":\"01:29­:47\",\"free\":3175,\"usage\":921}\x81j{­\"setpoint\":66,\"timer\":\"90\",\"temp\­":[50,50],\"counter\":5385,\"counterstr\­":\"01:29:46\",\"free\":3171,\"usage\":9­25}\x81j{\"setpoint\":66,\"timer\":\"90\­",\"temp\":[50,50],\"counter\":5384,\"co­unterstr\":\"01:29:45\",\"free\":3166,\"­usage\":930}\x81j{\"setpoint\":66,\"time­r\":\"90\",\"temp\":[50,50],\"counter\":­5383,\"counterstr\":\"01:29:44\",\"free\­":3162,\"usage\":934}\x81j{\"setpoint\":­66,\"timer\":\"90\",\"temp\":[50,50],\"c­ounter\":5382,\"counterstr\":\"01:29:43\­",\"free\":3157,\"usage\":939}\x81j{\"se­tpoint\":66,\"timer\":\"90\",\"temp\":[5­0,50],\"counter\":5381,\"counterstr\":\"­01:29:42\",\"free\":3153,\"usage\":943}\­x81j{\"setpoint\":66,\"timer\":\"90\",\"­temp\":[50,50],\"countermore.. ....

  • The Espruino Book "Making Things Smart" is out now!
    in News •
    Avatar for Wilberforce

    25 New from $20.34 15 Used from $22.99

    How can there be used books already?

    Digital copy - careful owner - only downloaded once by an old lady.

  • Bug of Espruino IDE (not supporting UTF-8 comments)
    in General •
    Avatar for Wilberforce

    Is it the ... - is that three . or a character... ?

  • wifi.removelistener() do not work properly
    in ESP8266 •
    Avatar for Wilberforce

    Hi,
    I don't understand why you are adding more than one listener function to the same event?

    Can't you do everything you need to do in the first connection function?

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