martinbandung

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• UART issues please help

  in ESP8266 • 4 years, 6 months

  

  I solved the problem. I can do it after moving the console to Telnet. I read it on espruino documentation on the very bottom of the page.

• UART issues please help

  @martinbandung started

  • 4 comments
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  @martinbandung replied
• UART issues please help

  in ESP8266 • 4 years, 6 months

  

  so, i am interfacing esp8266 wemos d1 mini with atmega328. ATmega328 sending data to esp8266 using serial communication. I think the serial is not working correctly.

  when i powered up 2 board,the esp can connect to my local mqtt and sending "no_data", even though i see on my atmega328 lcd that the data was sent correctly.

  but when i connect to wemos using espruino ide over ip address. i magically can send the data to mqtt correctly.

  i've tries several times, that i need to connect to esp through espruino program on computer as if it is "openning the lock" on my uart port on esp.

  where is the mistake?

  Serial1.setup(19200,{rx:D3,tx:D1});
  
  var mqtt = require("tinyMQTT").create(server, {
      username: "a",
      password: "asdfghjkl",
      port: 1883
  });
  
  function konekwifi()
  {
    wifi.connect("qwer",{password:"asdfqwer"­},
    function(){
      mqtt.connect();
    });
  }
  
  function kirimdata()
  {
    var bsplit=buff.split(",");
    if(buff!='' && bsplit.length>=3)
    {
      mqtt.publish("posisi/"+clientid, JSON.stringify(
        {
          'name':clientid,
          'lat':bsplit[0], 
          'lon':bsplit[1], 
          'pm':bsplit[2]
        }));
    } else
    {
      console.log(bsplit.length+'_no_data_'+bu­ff);
      mqtt.publish("status/"+clientid, "no_data_"+bsplit.length);
    }
  }
  
  function onInit() {
    konekwifi();
    wifi.stopAP();
  
    setTimeout(function(){
      if (wifi.getIP().ip!='0.0.0.0'){
        console.log(wifi.getIP());
      } else {konekwifi();}
    }, 15000);
  }
  
  
  //event handler
  Serial1.on('data', 
  function (data) { 
    buff=data;
  });
  
  setInterval(kirimdata, 2000);