IPWorks IoT 2020 Python Edition

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connect Method

Connects to the MQTTSN Gateway.

Syntax

def connect(host: str, port: int) -> None: ...

Remarks

This method connects to the MQTTSN Gateway by sending a CONNECT packet. Calling this method is equivalent to setting the remote_host property to Host, setting remote_port to Port, and then setting the connected property to True.

When connecting to an MQTT gateway, the class sends the following information:

Refer to clean_session for more information about MQTT sessions; refer to will_topic, will_message, WillQOS and WillRetain for more information about MQTT Wills.

Basic Connection Example

mqttsn1.ClientId = "testClient";
mqttsn1.CleanSession = true;
mqttsn1.KeepAliveInterval = 30;
mqttsn1.WillTopic = "wills/" + mqttsn1.ClientId;
mqttsn1.WillMessage = mqttsn1.ClientId + " was disconnected ungracefully!";
mqttsn1.Connect(host, port);

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IPWorks IoT 2020 Python Edition - Version 20.0 [Build 8265]