send MQTT message(a,b,c,d,e)
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Group |
This function sends a message to MQTT server alias a, using topic b and payload c. Returns true for success.
Parameter Description
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Parameter |
Description |
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a |
The MQTT alias. |
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b |
The topic to send to. |
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c |
The data to be sent. |
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d |
The encoding of the payload c. Note: You can use the three dots for selection. |
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e |
The quality of service (1-3, where 1=At most once, 2=At least once, 3=Exactly once). |
System Variables
In MQTT version 5, you can use system variables of the form MQTT_<keyname> to pass user properties (key, value). See also MQTT_SYS_CONTENTTYPE and MQTT_SYS_CORRELATIONDATA.