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 and Internet technologies t will introduce new technologies,protocols and services.

One of the protocols I believe will be crucial in the coming years is MQTT and it will form the main focus of this site.

Recommended reading

• Introduction to the MQTT messaging protocol.
• MQTT Hosting,Brokers and Servers
• MQTT and IOT dashboards
• node-red course.

If you have any questions please ask

Best Regards Steve

Normally the Sonoff switches don’t support MQTT but you can buy flashed devices that run the Tasmota firmware that does.

The Sonoff-Tasmota firmware provides three interfaces: MQTT, web and serial that can be used for controlling the switch.

In this tutorial I will cover basic setup of the Sonoff Tasmota MQTT Basic Switch and how to use MQTT to control and configure the switch. (more…)

When I first starting working with computers everything was in ASCII.

However today working with networking protocols and network programming you will come across a variety of data and character encoding schemes.

In this tutorial we will look at basic encoding schemes used on computers and in the second part of the tutorial we look at how data is sent over a network. (more…)

The function node is used to run JavaScript code against the msg object.

The function node accepts a msg object as input and can return 0 or more message objects as output.

This message object must have a payload property (msg.payload), and usually has other properties depending on the proceeding nodes. (more…)

If you’re new to mongoDB and are looking to use it on one of your IOT projects then you might find my working notes useful.

Install –

• Manual links to install on multiple platforms
• How to Install mongoDB on Windows 10.

The database files are stored in c:\data\db on Windows (default) and in the folder /var/lib/mongodb on Linux (Raspberry pi). (more…)

In MQTT the process of sending messages is called publishing, and to receive messages an MQTT client must subscribe to an MQTT topic. (more…)