Hapseleg

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• Errors once code has been saved onto ESP8266

  @Hapseleg started

  • 5 comments
  • 2,356 views

  @Hapseleg replied
• Errors once code has been saved onto ESP8266

  in ESP8266 • 5 years, 9 months

  

  Thank you so much for the very thorough explanation and the great tips. People such as you are those who make communities great :)

• Errors once code has been saved onto ESP8266

  in ESP8266 • 5 years, 9 months

  

  Ah I see, everything works now as it should. Thank you very much!

  Do you recommend I always use onInit when I want to save code?

• Errors once code has been saved onto ESP8266

  in ESP8266 • 5 years, 9 months

  

  Hi there, I am playing around with my DHT11 temperature sensor and my websocket server, I am using the Wemos d1 mini.

  Here is my code:

  var dht = require("DHT11").connect(D4);
  var WebSocket = require("ws");
  var wifi = require("Wifi");
  
  var WIFI_NAME = "MY WIFI NAME";
  var WIFI_OPTIONS = { password : "MY WIFI PASSWORD" };
  
  wifi.connect(WIFI_NAME, WIFI_OPTIONS, function(err) {
    if (err) {
      console.log("Connection error: "+err);
      return;
    }
    console.log("Connected!");
    
    var host = "MY IP";
    var ws = new WebSocket(host,
      {
        path: '/',
        port: 80, // default is 80
        protocol : "echo-protocol", // websocket protocol name (default is none)
        protocolVersion: 13, // websocket protocol version, default is 13
        origin: 'Espruino',
        keepAlive: 600,
  (default is none)
      }
    );
  
    ws.on('open', function() {
      console.log("Connected to server");
  
  
      setInterval(function(){
        dht.read(function (a) {
          ws.send('{"temp":"'+a.temp.toString()+'"­,"rh":"'+a.rh.toString()+'"}');
        });
      },10000);
    });
  });
  

  Note: I have obviously hidden my wifi ssid, password and my IP in the code, just in case :)

  If I upload this to the Wemos it will work as it should, my websocket server is receiving the messages and will display the temperature and the humidity every 10 second the message is sent.

  But then once i save() this code onto the Wemos and reboot it, it starts showing this message every 10 second:

  Uncaught Error: This socket is closed.
   at line 2 col 26
  b,c+(this.masking?128:0)));126==c&&(this­.socket.write(h(a.le...
                           ^
  in function "send" called from line 1 col 69
  ...rh":"'+b.rh.toString()+'"}');
                                ^
  in function "c" called from line 2 col 173
  ...or:0<e,raw:b,temp:-1,rh:-1})
                                ^
  in function called from system
  

  What causes this problem? Seems like it has to do with the wifi module?
  I have tried restarting the server and also the Wemos but the problem persists.

  Thanks

• 8x8 LED matrix, one column not working?

  in ESP8266 • 5 years, 9 months

  

  Problem found! Seems like one of the soldering's on the driver board was bad :) thanks for all the help once again!

• 8x8 LED matrix, one column not working?

  @Hapseleg started

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  @Hapseleg replied
• 8x8 LED matrix, one column not working?

  in ESP8266 • 5 years, 9 months

  

  Got time to test it today and indeed the column of LED's did not light up... So it seems like there is a problem with my LED matrix or the MAX7219 driver board. Also I wanna say thanks for all the help guys! Really appreciate it!

• 8x8 LED matrix, one column not working?

  in ESP8266 • 5 years, 9 months

  

  Haven't been able to test it yet but I was thinking, since it works with an Wemos d1 mini running Arduino code, shouldn't that indicate it's something to do with the software?

• 8x8 LED matrix, one column not working?

  in ESP8266 • 5 years, 9 months

  

  Removing the intensity didn't help and it works just the same with ground connected or disconnected.
  Can I somehow check if the ground on the LED matrix is broke? I think I remember that all columns used to work

• 8x8 LED matrix, one column not working?

  in ESP8266 • 5 years, 9 months

  

  Yes, here you go :)