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 …
mqtt - MQTTClient throws error when trying to connect - Stack Overflow
Oct 20, 2024 · I'm devopling an application on a PicoW using Visual Studio (Thonny gives the same results). It uses umqtt.simple: from machine import Pin, I2C from time import sleep import network …
Node-red beginners issue. Connection failed to broker: mqtt://
Jun 24, 2023 · Probably not. I have not installed anything extra apart from Node Red. After your reply I tried to install HiveMQ (and upgrade my Java 8 to Java 11). I still didn´t manage to connect to the …
Using MQTTNet, how to subscribe to topic, parse then push back in a ...
Jul 3, 2023 · Using MQTTNet, I am not very familiar with async in C# so I need a little bit help. I want to subscribe to a MQTT topic (external broker like mosquitto), parse messages, and for particular ones …
python - Paho-mqtt with asyncio library - Stack Overflow
Jan 11, 2021 · Does paho-mqtt fully supports MQTT 5.0 protocol? In my application, I'm using MQTT 5.0 protocol so which is best in python paho-mqtt or gmqtt (with asyncio)?
mqtt - Connecting ESP32 IDF MQTT5 Example to HIVEHQ - Stack …
Jul 21, 2024 · From this I could connect the MQTT/SSL project to the Mosquitto broker using SSL. I then returned to my MQTT5 project and added the certificate code etc from the MQTT SSL example.
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 …
mqtt - Mosquitto TLS - Connection Refused: not authorised - Stack …
Jul 14, 2023 · You shouldn't seperate the listener 8883 line from the entries that contain the cert/key information (and your files do not match the examples). Also edit the question to show the mosquitto …
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 card and …
How can I queue messages in MQTT? - Stack Overflow
Nov 21, 2020 · I am using MQTT in an IoT application. For that purpose each IoT device will publish data to the IoT broker under their Topic and the processing server would subscribe to some …