Hands-On Industrial Internet of Things

Sending data through MQTT

To develop our simple device, we will create a basic application based on Node.js. However, it is also possible to use .NET, Java, Python, and ANSI C.

From the command console, we can create an empty directory and install the right packages. The commands required to do this are as follows:

mkdir my-iiot-devicecd my-iiot-devicenpm init -ynpm install azure-iot-device azure-iot-device-mqtt –save

A simple source code to develop our application is available on GitHub at https://github.com/Azure/azure-iot-sdk-node.

On the my-iiot-device path that we just created, we can create a new file called my-iiot-device.js and copy and paste the following code. Replace the connection string with your connection string:

'use strict'; ...