Hi and Welcome to Steve’s Internet Guide.

The first wave of the Internet involved connecting people to each other and people to information.

The next wave of the Internet will involve connecting the physical world to the Internet, and machines to each other (M2M – Machine to machine).

Although the Internet of Things will make use of the existing Internet protocols and Internet technologies it will introduce new technologies,protocols and services.

This site will focus on those technologies and services. Below are some quick links to get you started.

If you have any questions please ask

Newsletter

I publish a newsletter from time to time with tutorials,videos,news and tips that you might find useful. To receive it just complete the form below and then confirm your subscription.

Name*

Email*

Best Regards Steve

Flows that you create are stored by default in a file in the .node-red directory of your home folder in a file called flows_servername.json.

The file is created when you run node-red for the first time, and is loaded each time that you run node-red. (more…)

Node red uses a settings file called settings.js located in in the user .node-red (dot node-red) folder in their home directory.

You can create your own settings file and customise it either by copying the existing file or using the file available from Github here.

On Linux the settings.js file is copied from the /usr/lib/node-modules/node-red/ folder to your .node-red folder in your home directory when you start node-red, and there is no settings.js file present. (more…)

If you want to save a flow or function and reuse it later in another flow on the same computer then you can save it to the local library.

To save a flow to the library highlight all nodes in the flow by using CTRL+A then use the main menu (top right) and select Export>Library. (more…)

Web Applications have a direct connection between the sender and receiver.

The sender is the client (web browser) and the receiver is the server.

They implement a command response message flow were the client(browser) makes a request and the server responds and there is a direct connection between client and server. (more…)

MQTT v5 introduced many new features and changed how some existing features work.

In this tutorial I will be covering all of these features with brief examples, and also in many case, links to detailed examples and videos. (more…)