News:

  • July 25, 2026, 01:22:05 AM

Login with username, password and session length

« previous next »
Pages: [1]

Author Topic: MQQT  (Read 11306 times)

icauto

  • Newbie
  • *
  • Posts: 4
MQQT
« on: October 31, 2020, 10:34:55 PM »
Hello,

I am setting up an MQTT setup. I seem to get a fail at the point of TLS handshake. I tried a different MQTT broker and I am getting the same thing.

Here is a screen shot of the DMLOGGER Dump.




Doug
Logged

Controls Guy

  • Internal Dev
  • Hero Member
  • ****
  • Posts: 3622
  • Darth Ladder
Re: MQQT
« Reply #1 on: November 01, 2020, 09:48:00 AM »
What's your scan time?   For Gmail, I found that the process requires about 1.85 to 1.90 seconds of CPU time, and with the login timing out on Google's end after about 9 seconds, that means you must dedicate at least 21% of CPU time to logging in or it will time out.  Email has a 1666 us/scan timeslice, so I have to have a scan time below 6.2ms (when not logging in)  to log in.   I don't know if MQTT has a similar timeslice number, or it might even be the same one, but try again with a program that has nothing in it but the MQTT.  Then increase the scan time gradually and see it that makes it fail at some point.
Logged
I retract my earlier statement that half of all politicians are crooks.  Half of all politicians are NOT crooks.  There.

BobO

  • Host Moderator
  • Hero Member
  • *****
  • Posts: 6168
  • Yes Pinky, Do-more will control the world!
Re: MQQT
« Reply #2 on: November 01, 2020, 08:09:15 PM »
The connection is being dropped in less than a second. Don't know why that would be, but there is almost no chance that the handshake would be completed that quick.
Logged
"It has recently come to our attention that users spend 95% of their time using 5% of the available features. That might be relevant." -BobO

icauto

  • Newbie
  • *
  • Posts: 4
Re: MQQT
« Reply #3 on: November 02, 2020, 08:36:03 AM »
Seeing as I am getting  it on 2 brokers, I believe it is on my side. Do I have to open any ports on the router or anything adjusted on my side?
Logged

BobO

  • Host Moderator
  • Hero Member
  • *****
  • Posts: 6168
  • Yes Pinky, Do-more will control the world!
Re: MQQT
« Reply #4 on: November 02, 2020, 09:23:22 AM »
Quote from: icauto on November 02, 2020, 08:36:03 AM
Seeing as I am getting  it on 2 brokers, I believe it is on my side. Do I have to open any ports on the router or anything adjusted on my side?

You wouldn't get to the handshake if that were a problem.

Are the brokers public? We can try to test them from here.
Logged
"It has recently come to our attention that users spend 95% of their time using 5% of the available features. That might be relevant." -BobO

icauto

  • Newbie
  • *
  • Posts: 4
Re: MQQT
« Reply #5 on: November 02, 2020, 11:12:09 AM »
Hello,

We tried:

io.adafruit.com

www.maqiatto.com

Thanks
Logged

BobO

  • Host Moderator
  • Hero Member
  • *****
  • Posts: 6168
  • Yes Pinky, Do-more will control the world!
Re: MQQT
« Reply #6 on: November 02, 2020, 11:42:13 AM »
I tried io.adafruit.com and it worked fine. It did kick me when I had the login wrong, but once I used the generated I/O key it connected. I then had to get the topic format correct, but once fixing that I was able to see my data on the dashboard.

The AdaFruit I/O system is pretty slick. I hadn't seen that before. Looks like in addition to MQTT you can use an HTTP REST API to access it.
Logged
"It has recently come to our attention that users spend 95% of their time using 5% of the available features. That might be relevant." -BobO

icauto

  • Newbie
  • *
  • Posts: 4
Re: MQQT
« Reply #7 on: November 02, 2020, 12:34:46 PM »
I do have the generated I\O key from adafruit. I went to device manager. Where do I put it in?
Logged

BobO

  • Host Moderator
  • Hero Member
  • *****
  • Posts: 6168
  • Yes Pinky, Do-more will control the world!
Re: MQQT
« Reply #8 on: November 02, 2020, 02:54:48 PM »
Quote from: icauto on November 02, 2020, 12:34:46 PM
I do have the generated I\O key from adafruit. I went to device manager. Where do I put it in?

The I/O key is used as the password in the MQTT device config.
Logged
"It has recently come to our attention that users spend 95% of their time using 5% of the available features. That might be relevant." -BobO

Ssweber

  • Jr. Member
  • **
  • Posts: 10
Re: MQQT
« Reply #9 on: November 02, 2020, 08:09:18 PM »
Quote from: BobO on November 02, 2020, 11:42:13 AM
The AdaFruit I/O system is pretty slick. I hadn't seen that before. Looks like in addition to MQTT you can use an HTTP REST API to access it.

I?m about to try out Thingsboard.io - there?s a whole world of iot dashboards I?m just finding. I?ll post back once I try it out.
Logged
Pages: [1]
« previous next »