To get the most out of this book
You will need Node-RED version 1.2 or later, Node.js version 12 or later, npm version 6 or later, and preferably the latest minor version installed on your computer. But this is the case when running Node-RED in a local environment. In the case of running on IBM Cloud, which is one of the tutorials in this book, it depends on the environment of the cloud platform. All code examples have been tested on macOS, Windows, and Raspberry Pi OS, but some chapters have command-line instructions based on macOS.
If you are using the digital version of this book, we advise you to type the code yourself or access the code via the GitHub repository (link available in the next section). Doing so will help you avoid any potential errors related to the copying and pasting of code.
