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Can't connect NodeMCU with MQTT

Arduino
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  • swalahamani
    swalahamani @sivanath last edited by 30 Mar 2023, 07:49

    @sivanath

    Is it working now?

    S 1 Reply Last reply 30 Mar 2023, 07:51 Reply Quote 0
    • S
      sivanath @swalahamani last edited by 30 Mar 2023, 07:51

      @swalahamani No Screenshot 2023-03-30 132054.png

      swalahamani 1 Reply Last reply 30 Mar 2023, 07:59 Reply Quote 0
      • swalahamani
        swalahamani @sivanath last edited by 30 Mar 2023, 07:59

        @sivanath
        Did you follow the steps which I mentioned previously?

        S 1 Reply Last reply 30 Mar 2023, 09:57 Reply Quote 0
        • S
          sivanath @swalahamani last edited by 30 Mar 2023, 09:57

          @swalahamani Yeah!!

          swalahamani 1 Reply Last reply 31 Mar 2023, 04:37 Reply Quote 0
          • swalahamani
            swalahamani @sivanath last edited by swalahamani 31 Mar 2023, 04:38 31 Mar 2023, 04:37

            @sivanath

            Oh okay.

            Please bring your device if you're coming for the upcoming MakerChat 0x13 tomorrow (IST). Either I and @salmanfaris or both of us will be there.

            Or else we can set up a call sometime this weekend or the next week and sort it out.

            Let me know.

            S 1 Reply Last reply 31 Mar 2023, 04:52 Reply Quote 1
            • S
              sivanath @swalahamani last edited by 31 Mar 2023, 04:52

              @swalahamani I may not be able to come tomorrow. I think we could set up a call. How can I contact you personally?

              salmanfaris 1 Reply Last reply 5 Apr 2023, 09:17 Reply Quote 0
              • salmanfaris
                salmanfaris @sivanath last edited by 5 Apr 2023, 09:17

                @sivanath From your last message looks like the MQTT broker already running on your computer. Could you please try to do a test with nodeRED and see it's working or not.

                S 1 Reply Last reply 11 Apr 2023, 17:39 Reply Quote 0
                • S
                  sivanath @salmanfaris last edited by 11 Apr 2023, 17:39

                  @salmanfaris Actually, I can't connect my NodeMCU device with the localhost server. I can establish a connection using the test.mosquitto.org server.
                  This is my required case: YouTube link

                  1 Reply Last reply Reply Quote 0
                  10 out of 17
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                  Recent Posts

                  • @codelery Awesome. That's great news. Kudos to @rafitc99 . 🙌

                    @codelery Please keep us updated about your project, looking forward to seeing it in action 🤩

                    7 Jul 2023, 06:58 • read more
                  • C

                    @rafitc99 I changed the buffer and that solved the problem. Thanks a lot for coming to my rescue.

                    7 Jul 2023, 00:44 • read more
                  • C

                    @salmanfaris I did change the buffer size and everything is working perfectly. Thanks coming to my rescue.

                    7 Jul 2023, 00:41 • read more
                  • @codelery said in Help needed: Arduino Wireless Notice Board project:

                    I am using the hardware serial (pin 0 and 1 on Arduino Uno)

                    As @rafitc99 mentioned, you need to expand the Serila buffer, in the hardware serial also the Arduino board package implements a 64-byte ring buffer for send and receive on the hardware serial messages. So you need to change that to 256 as per your message length.

                    6 Jul 2023, 12:22 • read more
                  • C

                    @rafitc99 The thing is that I am not using the SoftwareSerial library in receiving the message from the first microcontroller. I am using the hardware serial (pin 0 and 1 on Arduino Uno)

                    6 Jul 2023, 01:45 • read more
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