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This article introduces the relevant knowledge of "how to achieve MQTT communication instructions and authentication". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

Preparatory work:

Install ActiveMQ-MQTT

Install MQTT-BOX

Implementation process:

MQTT-BOX simulation test

Data 4GDTU and MQTT connection testing process preparation: equipment

4GDTU device + sim card (figure 1.1)

1 4GDTU-RJ45 cable (figure 1.2)

1 12V power cord (figure 1.3)

One USB disk for serial port debugging (figure 1.4)

# Software

4GDTU device corresponding software (Hanfeng equipment address: http://bridge.iotworkshop.com/dashboard.html)

Serial debugging assistant. Http://www.cmsoft.cn/resource/101.html

MQTT Service (Active MQ) https://blog.csdn.net/lwl20140904/article/details/79486834

MQTTbox http://workswithweb.com/html/mqttbox/installing_apps.html#install_on_mac

Steps:

4GDTU software configuration (Hanfeng official website configuration: http://bridge.iotworkshop.com/dashboard.html)

MTTBOX configuration

MQTT service

4. Serial debugging assistant

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