Preparations
Obtaining Device Access Information.
On the ROMA Connect instance console, choose LINK > Device Management to view the MQTT/MQTTS connection address. In the device list on the Device tab page, view the client ID, username, and password of the device to be connected.
Preparing the Development Environment
- Install a development tool.
Download the installation package of IntelliJ IDEA 2018.3.5 or later from the official IntelliJ IDEA website.
- Install a development language.
Download the Java Development Kit of 1.8.111 or later from the official Oracle website.
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