Client not publishing to the broker.

[shantanu...@gmail.com]

here is my sketch.

void loop()

{

  

  if (!mqttClient.connected()) {

    reconnect();

  }

  

  

  if (abc == 1){

    Serial.println("Starting Sensor");

     digitalWrite(5, HIGH);

    Serial.print("calibrating sensor ");

    for(int i = 0; i < calibrationTime; i++){

      Serial.print(".");

      delay(1000);

      }

    Serial.println(" done");

    Serial.println("SENSOR ACTIVE");

    delay(50);

    digitalWrite(12, HIGH);

  Serial.println("wait till module gains stability");

  delay(5000);

  //for (int x=0; x<20; x++){

    int xyz = 2;

    while (xyz != 1){

    Serial.println("Started Detection");

  if(digitalRead(pirPin) == HIGH){

       //digitalWrite(ledPin, HIGH);

Serial.println("motion detected ");

 

    xyz = 1;     

      

  digitalWrite(14, HIGH);

  mqttClient.publish("Daccess/MotionSensor/status","Motion Detected");

  }

delay (1000);

  

  }

  abc = 2;

  

  }

   

  

mqttClient.loop();

}

Its a code for PIR sensor motion detection.

"abc" is initialized to 1 when a "ACTIVATE" message is received from Broker. Only then will the sensor start.

But the Publish request is not working. It is simple but the client (Sesnor) doesn't Publish messages to the broker. I know it is a problem in the placement of the "mqttClient.publish" command. Because I change the position of the command and the client perfectly publishes to the broker. But why not when in loop?

[Laing, Michael]

Hi Shantanu,

I reformatted your code.

It appears that loop() is never called due to commenting of the left bracket in the second for loop..

Cheers,

ml

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[shantanu...@gmail.com]

Thank You soo much Michael! I really appreciate your help! :)