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- Paho MQTT Unsupported callback API version error
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 recommend reading the document linked above and planning to migrate to CallbackAPIVersion API_VERSION2 An alternative option would be to install a v1 release (v1 6 1 is the latest; pip install "paho
- Node-red beginners issue. Connection failed to broker: mqtt:
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 mqtt-broker on 127 0 0 1:1883 or 127 0 0 1:8080 How do I successfully install a broker in the simplest way? Thanks!
- Paho-MQTT client disconnect with code 16 and cannot connect again
If I restart the container with the mqtt client, it starts working, but after a few hours it disconnects again (with code 16) with the possibility of reconnecting I didn't suspend resume the machine before the failures started - mqtt client and broker works on virtual machine I don't see any client connection attempts in the mqtt broker logs
- mqtt - MQTTClient throws error when trying to connect - Stack Overflow
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 from umqtt simple
- Paho updating userdata from on_message callback - Stack Overflow
Basically, I want my userdata to act as a global flag that gets read and updated between successive executions of the on_message() callback I wrote and ran the following script: import paho mqtt c
- How to use STM32 lwip mqtt api with tls? - Stack Overflow
1 i made stm32 + rtos + lwip mqtt solution and it works well Now i want to use it with embed tls secure connection I did not find any exemples lwip mqtt api supports tls comunication But there are no such example, just simple mqtt client using code LWIP MQTT Client i used
- javascript - mqtt client in html page - Stack Overflow
If you want to connect to a MQTT broker from with a web page you MUST use MQTT over Websockets The Javascript sandbox in the browser will not allow you to do it any other way You will need to use a MQTT broker that supports MQTT over Websockets and you will most likely need to configure it to do so It will need to be on a separate port to 1883 as this is traditionally used for native MQTT
- Is subscribing to MQTT on port 1883 secure? - Stack Overflow
Your MQTT client is not listening on port 1883 - it's connecting to port 1883 on the broker The broker is the one listening on port 1883 - that's why you don't have to open a port on your router
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