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  1. Paho MQTT "Unsupported callback API version" error

    Feb 12, 2024 · client = mqtt_client.Client(mqtt_client.CallbackAPIVersion.VERSION1, client_id) This will configure the library to use the v1 callback API (as used with older versions of the library). I would …

  2. How do I subscribe to all topics of a MQTT broker

    Oct 2, 2015 · I want to connect a client which will monitor all the topics of the broker to respond to the events when I don't know what are names of topic.

  3. Cannot connecto MQTT from ESP32, using ESPHome config

    Apr 4, 2025 · I am learning about MQTT and using ESP8266 with ESPHome, and I am facing a few issues as follows: mqtt: broker: xxxx.s1.eu.hivemq.cloud port: 8883 username: username password: …

  4. Mosquitto: Starting in local only mode - Stack Overflow

    Dec 13, 2020 · Starting with the release of Mosquitto version 2.0.0 (you are running v2.0.2) the default config will only bind to localhost as a move to a more secure default posture. If you want to be able to …

  5. mosquitto - MQTT v 3.1.1 clean session not behaving as expected on ...

    Jun 22, 2024 · I am currently testing the clean session feature of MQTT, for my IoT project. My system architecture is quite simple: I have a subscriber on the same machine as the **broker **(Mosquitto, …

  6. mqtt - How to test the `Mosquitto` server? - Stack Overflow

    Nov 3, 2014 · I am new to Mosquitto and MQTT, I downloaded the Mosquitto server library but I do not know how to test it. Is there any way to test the Mosquitto server?

  7. Mosquitto MQTT: "Connection was lost" error when publishing a …

    May 5, 2025 · I am trying to test MQTT functionality and have installed Eclipse Mosquitto on my workstation. To subscribe to a topic, I use the following command: "C:\\Program …

  8. MQTT.js wss connection failed in browser - Stack Overflow

    Jun 12, 2023 · In this app mqtt topics are subscribed. I am using the MQTT.js package. If I am running the app in the browser (Edge and Firefox tested) by using an https connection I am forced to using …

  9. ESP32 can't connect on RPI mqtt broker - Stack Overflow

    Jan 6, 2025 · Helping my son with his project. I have setup static IP address for RPI3 on old router which runs mqtt broker on 1883 port with user and pass. With laptop on the same network we can send …

  10. mqtt client not connecting to mqtt broker through ip address

    May 25, 2022 · I'm new to mqtt protocol. I'm having difficult time connecting my mqtt client (which is connected to another network) with my mqtt broker running on my pc with ip address.