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.

SeeThe Internet of Things ( IOT) for Beginners

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

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IOT data from sensors and other devices usually comes as either a text string usually with key value pairs or more commonly as JSON encoded data.

Databases accept a variety of data formats the most common are INT and TEXT. (more…)

In the second part of our short http course we will look at http headers.

If you’ve missed part 1 then here it is- Part 1- http basics (more…)

The http protocol is the main protocol used on the web, and because of its widespread adoption it is also used in IOT applications.

Many IOT applications like the Thingsboard Dashboard support both http and MQTT.

In this tutorial we will start with a general introduction to cURL and show examples of using cURL to get and POST data. (more…)

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…)