MQTT_PublishQoS0()

Description

Function publishes data to MQTT broker (server) with certain topic.
Function can only send through messages when devices holds active session to MQTT broker. Any attempt to use the function when connection to broker is not present will result in error returned.

Syntax

MQTT_PublishQoS0(topic, data[], len);

Parameters

Variable	Input

Variable	Input
`topic`	MQTT protocol topic name.
`data[]`	Any string data to be published.
`len`	Length of data array/string.

Returns

Return value	Return explanation
SCRIPT_OPERATION_SUCCESS	Success
SCRIPT_OPERATION_FAILED	Failed
SCRIPT_PARAM_INVALID	Passed parameters invalid.

Function call example

Example of publishing data to MQTT broker (server) with certain topic.

new array1{10} = "35 degrees"; 
  
main()
{
    MQTT_PublishQoS0("temperature/ff/", array1, strlen(array1)); 

    for(;;)
    {
      Delay(100);                                  
    }
}

Used in Examples

MQTT guide