mqtt_as on HIVEMQ.Cloud

[Fisherman48]

esp32 vroom -32E
MicroPython v1.25.0 on 2025-04-15; Generic ESP32 module with ESP32

Setting in mqtt_local.py:
config['server'] = 'eb…………..e5b58d37ed1ffaa470.s1.eu.hivemq.cloud'
config['user']='Esp321'
config['password']='Esp321pw'
config['port']=8883
config['ssl']=True

first try:

  MPY: soft reboot
  main start
  finally
  Traceback (most recent call last):
    File "<stdin>", line 49, in <module>
    File "asyncio/core.py", line 1, in run
    File "asyncio/core.py", line 1, in run_until_complete
    File "asyncio/core.py", line 1, in run_until_complete
    File "<stdin>", line 34, in main
    File "mqtt_as.py", line 645, in connect
    File "mqtt_as.py", line 278, in _connect
  ImportError: no module named 'ussl'
  >>> 

after fix of import ussl as ssl at line 278:

  MPY: soft reboot
  main start
  Connection failed.
  finally

The account is working using different other apps and the program files has been used with cloudmqtt brooker (now closed)

Any hints to solve this?

/Stefan

[shariltumin]

https://github.com/shariltumin/ssl-tls-examples-micropython/tree/main/Mqtt

While this is not asycnio implementation of MQTT, it might provide some insight into how SSL transport is set up for MQTT.

For a specific example please see, https://github.com/shariltumin/ssl-tls-examples-micropython/blob/main/Mqtt/std_emqxsl.py

[Fisherman48]

MPY: soft reboot
mais start
Checking WiFi integrity.
Got reliable connection
Connecting to broker.
Connected to broker.
else main
up client
up client
RAM free 92272 alloc 24848

Topic: "test" Message: "from Android" Retained: False

Reading PeterH's info using
config['ssl_params'] = {"server_hostname": broker}
was the solution to this

Thanks