What is MQTT? - Part I - The Foundation

In this video, Walker Reynolds shares the basic architecture of MQTT, its background, and shows an example of a use case using MQTT 3.1.1 technology. Thank you EMQ for sponsoring this video.
Learn more about EMQ-X the Enterprise Broker 👉 www.emqx.io
Watch the rest of the 4-Part OPC & MQTT Series
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OPC Part I - • What is OPC? - Part I ...
OPC Part II - • What is OPC? - Part II...
MQTT Part I - • What is MQTT? - Part I...
MQTT Part II - • What is MQTT? - Part I...
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[@4.0Solutions]

Join us for the PLCnext + UNS workshop where we will be connecting a PLCnext to an EMQ-X Enterprise Broker!
www.iiot.university/offers/ay8DQigT?coupon_code=PLCNEXT

[@aguydoingstuff]

Great explanation. I use MQTT regularly for home automation, and I love the "forgiveness" it gives with sometimes sketchy network connectivity, as well as the great way manufacturers are using it in a "sleep till I need to fire a simple update" technique that conserves battery life in remote devices that may not have mains power available.

[@BobMazzo]

Just watching this for the first time. What a great presentation and explanation. Thank you.

[@4.0Solutions]

Glad you enjoyed it Bob. Thanks for watching!

[@alexchiosso221]

Very professional explanation + very effective body language technique.
Thank you so much. :-)

[@4.0Solutions]

Thank you!

[@hobbes1069]

Love seeing the Opto 22 groov EPIC on the right :)

[@4.0Solutions]

Us too!

[@sherylmccrary9045]

Single, outbound port... glad you got to the security question.

[@4.0Solutions]

Thank you!

[@EmileAckbarali]

So far so good! ... Will be watching out for Parts 2, 3, etc. Thanks again.

[@mohamedfayez3547]

Walker, you make big topics a piece of cake thank you

[@4.0Solutions]

Thank you Mohamed!

[@zacharyballard3343]

These videos are amazing; very grateful to Walker (and team) and what he is leading. Note for Zac - probably "queue", not "que" for acronym of MQTT

[@4.0Solutions]

Apparently MQTT no longer even stands for that. MQTT is MQTT now. But thank you!

[@masegomphake]

Really enjoying the series and the clarity it provides. Thanks a lot 4.0 Solutions.

[@4.0Solutions]

Thank you!

[@liquelt]

Very nice and well explained video! Thanks Walker

[@4.0Solutions]

Thank you!

[@SCADASupportPh]

Solid MQTT foundation here. Thanks for sharing!

[@4.0Solutions]

Thanks for watching!

[@chickenz4604]

Nice and Concise

[@michaelzeuner1746]

Very interested in this series!

[@4.0Solutions]

Thank you Michael!

[@jamietrisnan7052]

Thanks really helpful for a basic understanding

[@SergeyDidenko]

3 minutes and already love him, great body language :)

[@4.0Solutions]

Thanks, Sergey.

[@jeane0253]

How does one ensure against broker failure? It is a spof, right?

[@4.0Solutions]

Clustering.

[@phynaro]

Pls explain about how the subscriber know if the publisher is loss connection.

[@4.0Solutions]

It publishes a death certificate. The connection is stateful (It knows if it's good or not)

[@simxschl]

Start at 2:20

[@ryanchoi4990]

Mqtt broker can be unified name space?

[@4.0Solutions]

YES!

[@swapnilbhatt6090]

skip to 2:28 thank me later

[@webdeveloperninja9220]

Please more tutorials! Thanks

[@4.0Solutions]

More to come!

[@wokeclub1844]

Anyone understood the part around 10:57? How can you subscribe with an "outbound" connection?

[@4.0Solutions]

The subscription response comes back through the connection established by the client through the outbound connection to the broker.

[@wokeclub1844]

@@4.0Solutions Oh I see, thank you!

[@rajkumar-fy2ie]

Take zero... 😂