Channel Title: Steve Cope Channel Description: Hi- I'm Steve and I'm a technical trainer and consultant. The Internet as we know it is changing. The early Internet was for people to exchange information whereas the next stage of the Internet will be focused on machines exchanging information (M2M). This will involve the development of new technologies and services as well as utilising existing ones. I've created this channel to help you understand and use basic technology that you will encounter in today's Internet age. I'm currently focusing on the MQTT protocol as I believe it is the protocol that will power the IOT. Working with the IOT at any level will involve some form of programming. There are tools like node-red which make this much easier even for novice programmers and is currently my favourite choice for developing IOT solutions. I like learning and teaching and hope you find this channel helpful. Don't forget to subscribe <video> MQTT Retained Messages with Python Example Description: In this video we look at the retained message feature of the MQTT protocol and how and when it is used. To illustrate the retain message feature I demo a Python script that goes through the main steps and finally deletes the retained messages from the broker. Tutorial on site http://www.steves-internet-guide.com/mqtt-retained-messages-example/ Python script used in video http://www.steves-internet-guide.com/download/mqtt-retained-messages/ </video> <video> Running Mosquitto on Docker -part2 Description: How to run mosquitto on docker part 2. In this video we demonstrate some basic docker commands We start a default mosquitto image and demonstrate the address unavailable message due to using the default mosquitto.conf file We then copy in a new configuration file and run the container . Part 1 is here https://youtu.be/tl45cUpenT8?si=lsZZgOZo0R3b7hZe Tutorial on site http://www.steves-internet-guide.com/running-the-mosquitto-mqtt-broker-in-docker-beginners-guide/ </video> <video> Node-Red- Dynamic Drop Down Lists Description: Video tutorial on how to create dynamic drop down lists as opposed to static lists. Flow used in video https://www.buymeacoffee.com/steveh5u/e/219585 Message and object cloning https://stevesnoderedguide.com/message-object-cloning </video> <video> Node-Red -MQTT Retained Message Tool Description: A node-red tool to view and remove retained messages from an MQTT broker. Flow download https://www.buymeacoffee.com/steveh5u/e/233566 retained messages tutorial http://www.steves-internet-guide.com/mqtt-retained-messages-example/ </video> <video> Filter IOT/MQTT Data Using Node-Red Description: In this video we look at various ways of filtering incoming JSON and CSV data as well as mapping data. Tutorial of JSON to CSV https://stevesnoderedguide.com/converting-json-data-to-csv Demo flow download https://buymeacoffee.com/steveH5u/e/280883 </video> <video> Control Devices Using Text commands and Node-Red Description: In this video tutorial I demonstrate a simple flow that will extract commands form text data so that you can control devices using text. The video uses a simple inject node but you could use email,SMS,or voice to text as input. The extract function will extract the command,action,location and target that can be used to build the control command. The flow is available for download at the link below: buymeacoffee.com/steveh5u/e/319097 </video> <video> Node-Red Dashboard Template node with Background Images Description: In this video we look at how to add a background image to a template node and also how to create movement. In the video we use the template node from dashboard 1 The flow used in the video is available below https://stevesnoderedguide.com/download/template-background-images </video> <video> Introduction to Node-red Dashboard 2 Description: In this video we look at node-red dashboard 2 and in particular the template node and we compare it to the template node in Dashboard 1. As you may be aware dashboard 1 uses the angular frameworks whereas dashboard 2 uses the Vuejs framework. We also talk about moving from dashboard 1 to dashboard 2. Tutorial on site https://stevesnoderedguide.com/an-introduction-to-dashboard-2 Flow using in video https://stevesnoderedguide.com/download/dashboard2-video </video> <video> Node-Red Dashboard Switch Control with Feedback Description: IOT/smart home devices generally use a control and response command structure. In this video tutorial we look at controlling a IOT/smart home device using both MQTT and HTTP and showing the device status on the switch by using the device response. The tutorial is on the site here and contains a link to the demo flow. https://stevesnoderedguide.com/using-dashboard-switches-with-command-feedback Apologies for the audio in the later part of the video I tried to correct it but it didn't work. </video> <video> Node-red Command Response with Email Notification Description: In the previous 2 videos linked below we looked at turning a switch one and off with a switch and having the dashboard switch display the status. We then looked at how to repeat the command automatically if the switch didn't respond. In this video we look at sending an email notification on failure and also how you would log an error to a log file. The previous videos are here video 1 Using a switch https://youtu.be/RHyWhWng3RY Video2 Repeating the command https://youtu.be/vYBrMycRm6g and the flow can be downloaded here https://stevesnoderedguide.com/download/command-response-with-email-error </video> <video> MQTT-SN To MQTT Gateway Using Node-Red Description: In this video tutorial we look at a demo flow that implements an MQTT-SN to MQTT gateway in node red using QOS -1 or QOS 3 in MQTT-SN. This allows you to publish without a connection. The video also demonstrates sending data between two MQTT-SN clients without using a broker or Gateway. Although sending messages from MQTT to MQTT_SN is possible it isn't really feasible dur to the lack of a subscription. Therefore it is only really suitable for messages from MQTT-SN to MQTT. This isn't really a big drawback as many sensors like smoke alarms,temperature,motion sensors only need to send data. Although it is currently only available for node-red the idea could be easily transported to python, c, nodejs etc to create a very simple gateway . The mqttsn-packet module used is here https://www.npmjs.com/package/mqttsn-packet Demo Flow https://buymeacoffee.com/steveh5u/e/286019 MQTT-SN tutorials http://www.steves-internet-guide.com/mqtt-sn/ http://www.steves-internet-guide.com/using-the-paho-mqtt-sn-gateway/ http://www.steves-internet-guide.com/mqtt-sn-publish-and-subscribe-test-tools/ </video> <video> Running The Mosquitto Broker on Docker -Part 1 Description: This is the first part of a 2 part video tutorial on how to run the mosquitto broker on docker. In the first part we cover some docker basics which are applicable to all docker apps and in the second part we look at mosquitto docker in more detail. Link to github discussing the error message mentioned in video https://github.com/eclipse/mosquitto/issues/2040 docker image link https://hub.docker.com/_/eclipse-mosquitto Tutorial on website http://www.steves-internet-guide.com/running-the-mosquitto-mqtt-broker-in-docker-beginners-guide/ Part 2- https://youtu.be/6ow1xak31KI </video> <video> Using Mustache templates in a Node-red Function Node Description: In this video tutorial we look at how you can use mustache templates in a node-red function node. Using the node-red template node https://stevesnoderedguide.com/node-red-template-node video https://youtu.be/7S57bPBe_G8?si=5mAlJC0VlQZVwuEY </video> <video> Start and Stop Mosquitto Using Node-Red Description: In this video tutorial we look at how to start and stop an application like mosquitto using node-red. link to previous video on using exec node https://youtu.be/xcRkOH_0uek?si=PAZ9C7CkZQQffJAS Flow used in the video https://buymeacoffee.com/steveh5u/e/257926 </video> <video> Node-Red Command Response Automatic Device Control Description: In this video tutorial we look at how to control devices using command response architecture. We looked at this in a previous video with switches but this was manual control. If the command failed then we would see it in our switch state. In this video we look at what happens when a flow (program) issues a command and how to detect and react to a command failure. In the video we use MQTT as the control protocol but we could use any protocol. The previous video is here. https://youtu.be/RHyWhWng3RY The demo flow can be downloaded here https://stevesnoderedguide.com/download/automatic-command-response-demo </video>

Contacts and Links

Description

Hi- I'm Steve and I'm a technical trainer and consultant.
The Internet as we know it is changing. The early Internet was for people to exchange information whereas the next stage of the Internet will be focused on machines exchanging information (M2M).
This will involve the development of new technologies and services as well as utilising existing ones.
I've created this channel to help you understand and use basic technology that you will encounter in today's Internet age.
I'm currently focusing on the MQTT protocol as I believe it is the protocol that will power the IOT.
Working with the IOT at any level will involve some form of programming.
There are tools like node-red which make this much easier even for novice programmers and is currently my favourite choice for developing IOT solutions.
I like learning and teaching and hope you find this channel helpful.
Don't forget to subscribe

Videos from channel