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• Please make sure HiveMQ Broker is running

• Setup MQTT CLI

  • Download MQTT CLI

    • Go to the release link https://hivemq.github.io/mqtt-cli/ and go to the latest release

      

    • Download the correct zip for Windows (mqtt-cli-4.25.0-win.zip on our case)

    • Extract the zip file

    • Open the command prompt and cd into the CLI folder, this folder contains mqtt-cli.exe which will be used for the next steps

• Subscribe to a Topic: Subscribe to a topic using MQTT CLI with the command:

  Code Block
  mqtt-cli.exe sub -h localhost -p 1883 -i MQTTCLIClientSUB -t "connection/test" -d

  This command subscribes to the topic connection/test on the broker running on localhost.

• Publish to the Same Topic: Open another command prompt window, cd to the mqttcli folder and publish a message to the same topic with:

  Code Block
  mqtt-cli.exe pub -h localhost -p 1883 -i MQTTCLIClientPUB -t "connection/test" -m "Test MQTT CLI"

  This publishes the message "Test MQTT CLI" to the connection/test topic.

• Verify Message Receipt: Check the first command prompt window where you subscribed to the topic. You should see the message "Test MQTT CLI" appear, indicating that the message was successfully published and received.

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