Steve’s Internet Guide

Hi and Welcome to Steve’s Internet Guide.beginners guide internet-and-networking

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).

Every object, both real and virtual, connected to, and accessible over the Internet is the basic idea of the Internet of Things or the internet of Everything.. See- Beginners Guide to IOT

Although the Internet of Things will make use of the existing Internet 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.

MQTT

MQTT-Python

Mosquitto

Node-Red

If you have any questions please ask

Best Regards Steve

Latest Posts



Handling Multiple Client Connections-Python MQTT

It is common to require several connections either to a single broker or to several brokers.

There a several ways of achieving this and we will examine two ways.

First let us recap on what we require with a single connection. (more…)

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Understanding and Using Buffers In Node and Node-Red

When data is read from a file or network it is read byte by byte into a data buffer.

Data Buffers are temporary storage used for transferring data.

To work with binary data we will need access to these buffers. (more…)

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Working with JSON Data And JavaScript Objects in Node-Red

JSON=NodeJSON is popular format for encoding data sent over the Internet, and also stored in files.

In computing, JavaScript Object Notation (JSON) is an open-standard file format that uses human-readable text to transmit data objects consisting of attribute–value pairs and array data types (or any other serializable value). –wiki

(more…)

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Creating and Using Client Certificates with MQTT and Mosquitto

Another popular way of authenticating clients is via client certificates and can be use as in addition or as an alternative to using user name and password authentication. (more…)

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Using the Node Red Status Node

status-nodeIn Node red any node can report status information in the visual editor.

The screen shot below shows the mqtt node.

mqtt-node-status

It shows a green circle to indicate that it is connected and the text connected underneath the node. (more…)

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You will find the latest Tutorials on the blog