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.
HAOS: Adding my own MQTT broker will not connect
Jan 22, 2025 · Edited to add: I can also establish that connections ARE occurring between HAOS and my MQTT broker. Logs on the MQTT side indicate that the Paho MQTT client from HAOS …
esp_wifi.h: No such file or directory ( mqtt_client.h, nvs_flash.h)
Oct 19, 2024 · I am trying to merge my separate SD card and MQTT code in an ESP-IDF project to enable functionality for sending data from the SD card to the cloud via MQTT. Both the SD …
OPC UA protocol vs MQTT protocol - Stack Overflow
Apr 27, 2015 · 21 MQTT is a broker based messaging protocol where the payload encoding and content is completely application specific. Therefore it would be useful if you want to send …
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 …
Local MQTT mosquitto instance getting connect ECONNREFUSED …
Aug 27, 2020 · I am trying to run a local mosquitto broker, publisher and subscriber setup via docker and docker-compose, but the publisher cannot connect to the broker. However, …
MQTT "invalid protocol version" error with Ubuntu, mosquitto, …
Jan 6, 2024 · I'm currently working on an MQTT project using an NVIDIA Jetson running Ubuntu 18.04. I have installed mosquitto (version 2.0.15) as my MQTT broker and paho-mqtt (version …
IoT: do I need to use MQTT or HTTP? - Stack Overflow
May 19, 2017 · MQTT is intended for situations where your connection may be intermittent or otherwise unreliable. Its various Quality-of-Service levels provide you with significant ways of …
mqtt - Request all published topics - Stack Overflow
Mar 2, 2017 · I'm not saying I want to subscribe to everything. I'm just seeking to request all published topics. For instance, the broker could just response with an string array containing …
mqtt - How to test the `Mosquitto` server? - Stack Overflow
Jul 8, 2023 · 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?