What is an MQTT Broker Clearly Explained

[@thomasm1964]

Excellent, calm, measured explanation of the subject. No annoying music. No annoying verbal tics. No annoying, flashy editing. No annoying anything! Just subscribed.

[@adalbertoabade]

best comment. this is how web videos should be, this one is a perfect example by the way.

[@tehuster]

Could not have said it better! Liked & dubbel.

[@rd88elw]

I prefer no music because I watch instructional/educational videos at 3x speed (with an extension). Often with closed captioning too. Music really throws it off.

[@bubblez9266]

I can only agree. Perfect video tutorial! Just subscribed!

[@bubblez9266]

PS, this helped me a lot with my thesis, thank you for that!

[@troymclean9301]

My favorite MQTT Broker explanation...I share this weekly with my customers that want to learn more about MQTT. Great job OPTO 22!

[@Opto22]

Glad it was helpful!

[@surjist]

This is the clearest explanation to date I have seen and I've been doing IoT since 2004. Going to send it to my students. Love it. So clear, thank you!

[@Opto22]

Awesome, thank you!

[@bguiles1]

This is such a great explanation you barely even notice that the guy starts each sentence in Los Angeles and ends it in Melbourne.

[@pedro1p0]

what amazing video, 10 minutes of pure informations, congrats

[@Opto22]

Much appreciated!

[@ardentdfender4116]

I’ve got to say that even though I’ve seen a few vids on various people explain MQTT in concept explanation that this is by exceedingly far the most thoughtful, concise, contextual and so well explained video in clarity of all the previous videos I’ve seen on this topic. It’s calmly explained as well. I’ve got a much more through understanding also. My next question is there a low cost device and or software that can be used for the MQTT broker in a PLC System? I’ve seen 1-2 Opto Devices, but I’m not sure what you all have for MQTT oriented broker solution.

[@CommTech19]

I rarely comment however I have to tell you what an amazing job you did on this content.

[@Opto22]

Thank you for your comment...we appreciate it!

[@ratbagley]

This is a the best explanation of a complex topic. Watching again

[@Opto22]

Thanks so much!

[@valtrann745]

Amazing work. Thank you so much. I've never commented before but you can't imagine how helpful your videos are to me as a beginner. I started out with Node-red and have been following your series since then. Keep up the good work.

[@Opto22]

Thanks Ha My Tran! We are so glad that you found it helpful. Keep at it!!

[@ZackScriven]

This content is so good.

[@Opto22]

Thanks Zack! That means a lot coming from you.

[@sarthakvarshney]

Insanely easy to understand video. I understood in a sec. Thanks! Kudos to your work.

[@Opto22]

Glad you liked it!

[@samu350]

Enormous help, so much information yet still comprehensible, thank you!

[@Opto22]

Thanks Samuel!

[@vvnnable]

really appreciate the way you have made and edited this video, i likes the way you gave tiny sound to each graphics that makes it look it more alive

[@Opto22]

Thanks Vinay! I'm really glad you liked the video. Keep watching.

[@rmatveev]

I'm always liked to watch your videos: your speach is so clear and structured that after I watched any of your tuts - I feel that I'm already an expert on the topic. Thank you for that!!!

[@Opto22]

Thanks!

[@harrysullivan110]

Great video. Love the pace and the clarity.

[@Opto22]

Hi Harry, Keep watching! We've been busy making more tutorial videos.

[@ratbagley]

Well done.

[@Opto22]

Thanks Jeff!

[@michaelwest7822]

Thank you for a very clear and concise explanation...Excellent

[@MrWireguy]

Well done. Very clear. No fluff.

[@Opto22]

Glad you liked it!

[@zainabwahab-d5c]

first time ever commenting on the video. Excellent explanation, definitely a keeper !

[@Opto22]

Awesome, thank you!

[@learningcurve7498]

Nice....Finally a good explanation

[@Opto22]

Thanks for the support!

[@keslauche1779]

wow this is the best video on KZbin, you helped start my PhD hitting the ground running

[@Opto22]

Great to hear!

[@jakomuya6444]

perfectly explained. welldone for the good work👏👏

[@Opto22]

Thanks and welcome

[@MetTurtle818]

Thanks, really helpful intro. I've been trying to find something like this....easy to listen to and understand

[@Opto22]

Glad it was helpful!

[@przd3502]

perfectly explained. Thank you

[@Opto22]

Glad it was helpful!

[@ovalwingnut]

Now "that" is how you explain a system correctly. OUTSTANDINGLY EXCELLENT :O) Thank you.

[@Opto22]

You're the best!! Thanks for the love!

[@SME1432]

Clearly explained indeed..Thank you.

[@小朱-u3h]

Thank you.Very clear explantion.

[@aykarageorge]

Nice and simple explanation, yet covering everything required.

[@Opto22]

Glad it was helpful!

[@PsychedelicGuy1]

That explanation was really good,Thank you

[@harikrishnak3752]

short and straight video nice

[@Opto22]

Thanks!

[@farazkhan107]

Thanks for your efforts and quality content. While watching I thought that the video must be about to end because who shares all that for free but I wasn't even halfway into the video. Thanks again. :)

[@Opto22]

So nice of you

[@hritikdj]

Nice work dude !! Clearly explained each concept, Thank you so much

[@Opto22]

Most welcome!

[@rizwanmuhammad6468]

Excellent.

[@Opto22]

Thanks for the support!

[@karimsaikali6340]

Excellent explanation ! You are really gifted to explained with so much clarity complexes subjects! Please keep up doing great video like this 👍

[@adamwragg12]

Very clear and informative, thanks! 👍

[@Opto22]

Glad you enjoyed it! Thanks for watching

[@sanderbloem661]

Awesome video! thank you!

[@Opto22]

My pleasure!

[@PeterCogen]

Excellent work !

[@Opto22]

Thanks so much!!!

[@orewaminato]

`Clearly Explained` I have ADHD and normally I'd lost my focus in the first couple of minutes but I kept watching this video for 10mins.

[@Opto22]

Great to hear!

[@rickbronx8528]

Amazing again. Thanks

[@Opto22]

Thanks so much!!!

[@abyanfernandez9931]

simple and clear. thank you!

[@playaspec]

EXCELLENT video! Just the sort of lower level feature information other videos seem to gloss over. Thanks!

[@Opto22]

Thanks playaspec, Keep watching! We've been busy making more tutorial videos.

[@jagdishshetty4782]

Great explanation !!! Thx !!!

[@Jukalihaha123]

Keep going with the excellent work that you do.

[@Opto22]

Hi Fernando, We're busy making more MQTT tutorial videos. Keep watching this space! More new videos coming out every week.

[@16bitdude36]

very well explained

[@Opto22]

Glad you think so!

[@gabriela1922-q2f]

Very helpful. Thank you!

[@mrgehring2]

outstanding video, super clear explanation

[@Opto22]

Much appreciated!

[@fadedream]

You are absolutely awesomeness bud!!

[@Opto22]

You rock!

[@omarcruz6326]

Great explanation.

[@Opto22]

Glad you liked it

[@kobertolober]

you made my day

[@Major7Sharp5]

mine, too!

[@rasmuslarsson8454]

Brilliant content, thank you.

[@Opto22]

Glad you enjoyed it!

[@stephenhilton5820]

Thanks. I just came looking for MQTT primer and yours is excellent! Will be checking out your other videos as time permits.

[@Opto22]

Awesome! Thank you!

[@Danchoys]

Awesome video! Very clear and informative

[@Opto22]

Glad it was helpful!

[@sanmitram4172]

Awesome video.. 👍🏻👍🏻 Thank you..

[@Opto22]

Thank you too!

[@bergaouikais5951]

I have an exam on IoT in few hours, this video helped a lot thank you 5/5

[@z8ty]

Great video. I needed this. So very well done. Thank you.

[@Opto22]

Glad it was helpful!

[@boolve]

Amazing. Thanks

[@boolve]

Maybe I would like to hear is what type of messages can be send, what type of data?

[@Opto22]

Thank you too!

[@Opto22]

Great suggestion!

[@silverian]

Thanks for great explanation!

[@Opto22]

Glad it was helpful!

[@kostyabakay]

Excellent explanation!

[@Opto22]

Glad it was helpful!

[@MMKurdia]

AMAZING VIDEO, Thank you very much.

[@Opto22]

Glad you liked it! Thank you!

[@solidstatecode]

Very valuable video. Thank you.

[@Opto22]

Glad you think so!

[@FreestyleTraceur]

This is super helpful, thank you!

[@Opto22]

Glad it was helpful!

[@Major7Sharp5]

again! wow! what a nice video! love it!

[@Opto22]

Thanks! You're the best.

[@lomeshwasake1298]

Perfect explanation

[@Opto22]

Thanks! You're the best.

[@stevesfascinations1516]

Thanks for sharing the information. Loved the way you made the video. Thumbs up and subscribed!

[@Opto22]

Awesome, thank you!

[@danieldewindt3919]

Thank you verry much.

[@Opto22]

Thanks! Keep watching

[@jiangxu3895]

Well explained what I want to know, Thanks!!

[@Opto22]

Glad it was helpful!

[@cowboyskevin8121]

great explanation

[@Opto22]

Glad you think so!

[@falautomationbrazil]

Thank you!

[@Teesbege]

very well explained👍

[@Opto22]

Thank you 😃

[@mohan1519]

pretty cool explanation !! Thanks :)

[@Opto22]

That's awesome - super thanks!

[@atmikes1]

Excellent, thanks for sharing !

[@Opto22]

Glad you enjoyed it

[@Max-bw3ov]

i really love your videos and you

[@Opto22]

Thanks Max we really appreciate it.

[@usamaajm]

thank you

[@Opto22]

Thanks for watching!

[@vladimirzz93]

Such a great video, thanks a lot! >

[@Opto22]

Glad you enjoyed it!

[@alanblyde8502]

Well explained 🇦🇺👍

[@Opto22]

Thanks 👍

[@rursus8354]

Nice! I can use that for my lecture on MQTT.

[@oswevega2939]

subscribed indeed ! u rock !

[@Opto22]

Thanks so much!

[@altamashjawad6691]

Can you tell what your opening music is, very nice tune!

[@Deekudla]

Amazing video. Nice explanation. Suppose devices from the factory want to send messages to the cloud where we will deploy the broker? Is it a customers factory server or a cloud server? what is the best practice? High level diagram of real time use case would help

[@tinybyteworld423]

at 7:04 you say retained messages are just a copy of the most recent message. But cant there be more than one? I could swear the Q in MQTT is for queue... Nice video though!

[@bdyt1001]

Very good video, now bookmarked! Came here following references originating from home-assistant.io, which I'm just learning.

[@Opto22]

Glad it was helpful!

[@alphacoder3822]

wow......seems like he loves his work.

[@Opto22]

Thanks Alpha coder!

[@tusharniras]

Good Stuff! subscribed !

[@Opto22]

Thanks for the sub!

[@Andrew-rc3vh]

You have a star network in your example but a popular thing these days is a mesh network. One main advantage of a mesh is the ability to relay messages and the other advantage is it is decentralised so you can tap into the mesh in an adhoc way, able to send controls from any node to any other node with all nodes identical on the network layer. I wonder if MQTT can be used in a mesh. My interest in it is to control the network over the internet using AWS or similar. This is because most people use a dynamic IP address so it gets around that problem.

[@or9796]

Nice tutorial.

[@msmadaram]

have you ever work on android broker such as moquette or something like that ?

[@GregHassler]

Great video. Only question is where is authentication defined? Does each client need a unique uname/pword or can multiple clients share one? If shared, how are clients identified uniquely?

[@Xploitacademy]

How come the Certificate is optional for a TLS connection, isn’t that a pre requisite ?

[@aakashbera2652]

Excellent Video to Understand MTTQ. Pls Answer 1 thing I want to ask, which software you use to make this Animation Videos.

[@Opto22]

Thanks for watching! We use Final Cut Pro X, After Effects, Cinema 4D and Premier.

[@aakashbera2652]

@@Opto22 Thank You for Your Reply.

[@Major7Sharp5]

what a nice explanation about brokers and mqtt functionality! great! good work! May i use your the video info (w/the correspondig intelectual property credits) in a document i'm working on? thank you in advance!

[@AbhayNayak]

From what i understand, MQTT just requires a network to be made, not the actual internet right? I'm using AWS greengrass and planning to have 2 devices communicate locally over mqtt, what would happen if there is no internet connectivity with the cloud?

[@Opto22]

You are correct. MQTT doesn't require the Internet to work; it only requires a TCP/IP-based network, including private LANs, WANs, and cellular networks.

[@taison03251970]

So as example, what could be a broker agent, is Amazon AWS a broker?

[@finivincent5317]

is it possible to cluster the MQTT Clients (subscribers) based on the topic

[@Opto22]

Yes, absolutely. The topic is simplified here, but you can create a topic "tree" with different levels separated by a slash. It's not exactly a folder-like structure, but something like "cluster1/clientA/data" and "cluster1/clientB/data" then a "cluster1/#" subscription would do the trick. Many of our other MQTT videos go into more technical depth if you want to check them out!

[@airborneworks6103]

Great explanation, we are attempting to use this protocol I have wondered how it works. Can anyone tell me if there are networks of IOT developers here with in the USA that we can post a project to?

[@TheCzemike]

"Premise" is a proposition, a component in a logical argument; "premises" is land, building, or real estate.

[@rustyshacklef0rd]

Damn, where can I get that shirt??

[@peterking8586]

We developed the Pub-Sub model, which was further developed by IBM & MS.

[@Opto22]

cool

[@omar10wahab]

I think some real life implementation for the birth, death and last will messages would be nice to help me understand the purpose a bit better. You have a broad example and I do think the explanations overall and of that was good but I'm having a hard time thinking of the overall use case. Also I was looking into this video regarding trying to learn about mqtt for home assistant and I'm confused how it's not default an mqtt system. I know I don't use topics to send and receive messages but what would using default home assistant communication be called then?

[@prashantpatchi]

nice vido!

[@Opto22]

Thanks!

[@JP-vg8vl]

does all mqtt broker supports Retain Messages, Birth, Death, and Last Will and Testament Messages? i am planning to use mosquitto broker and i dont know if it support those functions

[@markgilbert249]

Can you do a video about how to cluster MQTT Brokers between, let's say two datacenters?

[@Opto22]

Good idea - We'll put it in the works.

[@markgilbert249]

@@Opto22 Hey, just following up on this to see if maybe you had made any headway on this.