<![CDATA[M5 Stack unable to subscribe and recieve new messages]]>Hello everyone, I am trying to print new messages on my m5 stick c plus, through hive mq. I am able to publish, but not able to subscribe. Not sure what is the issue here, please advise! Thank you in advance!

Here is my code:

from m5stack import *
from m5ui import *
from uiflow import *
import time

setScreenColor(0x111111)


PASSW = None
CLIENTID = None
USER = None
HOST = None



label0 = M5TextBox(47, 49, "label0", lcd.FONT_Default, 0xFFFFFF, rotate=0)
label1 = M5TextBox(47, 176, "label0", lcd.FONT_Default, 0xFFFFFF, rotate=0)


PASSW = 'password'
CLIENTID = 'm5stack'
USER = 'user'
HOST = '07ecd30c.s1.eu.hivemq.cloud'
from m5mqtt import M5mqtt

m5mqtt = M5mqtt(CLIENTID,HOST,8883,USER,PASSW,300,ssl=True,ssl_params={'server_hostname':HOST})
m5mqtt.start()
label0.setText('Hello M5')

a = None

def callback(topic_data):
  a = topic_data
  label0.setText(str(a))
  pass

while True:
  m5mqtt.subscribe(str('topic/1'), callback)

My StickCPlus is currently v1.9.8-plus

]]>https://community.m5stack.com/topic/4607/m5-stack-unable-to-subscribe-and-recieve-new-messagesRSS for NodeWed, 29 Apr 2026 12:21:39 GMTThu, 15 Sep 2022 14:59:09 GMT60<![CDATA[Reply to M5 Stack unable to subscribe and recieve new messages on Thu, 15 Sep 2022 19:04:14 GMT]]>what do you mean by "Not able to subscribe" ?
Does it not connect or does it not return data?
Does the data turn up in HiveMQ?

This looks like Micropython but the functions look strange, you have SSL set to true but no keys and certificates set.

]]>https://community.m5stack.com/post/18613https://community.m5stack.com/post/18613Thu, 15 Sep 2022 19:04:14 GMT<![CDATA[Reply to M5 Stack unable to subscribe and recieve new messages on Thu, 15 Sep 2022 18:30:00 GMT]]>Hello @sleepyfatcat

any particular reason you subscribe in an infinite while loop? Last time I tried mqtt I called m5mqtt.subscribe() only once and just before calling m5mqtt.start().

Thanks
Felix

]]>https://community.m5stack.com/post/18611https://community.m5stack.com/post/18611Thu, 15 Sep 2022 18:30:00 GMT