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The MQTTClient subscribes on messages on a MQTT-topic.

The MQTT broker can be either locally installed, for example mosquitto, or on a remote machine. For testing purposes, there are open brokers like HiveMQ MQTT Dashboard


  • Address Address to your MQTT broker.
  • Port Port to your MQTT broker. Usually 1883
  • BaseTopic Topic to subscribe for messages. Wildcard allowed.

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