Stuck at MQTT.TCP_Flag = True ( Sim 800 with atmega328) about sim800_mqtt HOT 3 CLOSED

For all those getting stuck at MQTT.MessageFlag = true when using software serial, ESP8266 or other platforms, change GSM_MQTT::processing in GSM_MQTT.cpp to

void GSM_MQTT::processing(void)
{
 if (TCP_Flag == false)
  {
    MQTT_Flag = false;
    _tcpInit();
  }
  _ping();

  //**************new code*****************
  unsigned long t = millis();
  //add long waitPeriod = 0; somewhere at the beginning of the file
  if (t - waitPeriod > 1000L) 
  {
    waitPeriod = t;
    serialEvent(); //call serialEvent every second
  }
  //*****************************************

}

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Did you solved this?

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Thanks for making library available for us !

I started with the library examples. I am able to connect to Adaruits.io but not able to publish data continuously... In fact i don't know where to and how add publish routine.. if could any sample simple code which sending data to broker then it would be very helpful for me.

from sim800_mqtt.