Problem with MM-MQTT module

[MM-Hans]

To receive MQTT messages I use Otto Paulsen’s MM-MQTT Module (https://github.com/ottopaulsen/MMM-MQTT) and that is nice software. Unfortunately, there is a problem, the output seems to be refreshed every 5 seconds, so that the text in question flashes briefly every time.

I have created an issue on Paul’s GitHub page about this, but unfortunately no answer after a few months of waiting. Does anyone know what could be the cause? Please let me know.

This is my code in config.js:

{
    			module: 'MMM-MQTT',
    			position: 'bottom_right',
			header: 'ELEKTRA\xa0',
    			config: {
        		logging: false,
        		useWildcards: false,
        		mqttServers: [
            			{
                		address: '192.168.2.155',
                		port: '1883',
                		subscriptions: [
                    			{
                        		topic: 'MM/Accu/Lader1',
                        		label: 'Acculader 1',
					broadcast: false,
                   			},
                    			{
                        		topic: 'MM/Accu/Lader2',
                        		label: 'Acculader 2',
					broadcast: false,
                   			},
					{
                        		topic: 'Energie/power_delivered',
                        		label: 'Verbruik',
                        		suffix: 'kWh',
					broadcast: false,
                   			}
                		]
            			}
        			],
    			}
		},

[sdetweil]

@MM-Hans is the send side sending info every 5 seconds?

[MM-Hans]

@sdetweil
No Sam, both MM/Accu/ topics send every 5 minutes and Energy topic every 2.5 minute.

[sdetweil]

@MM-Hans there should be messages posted to the log for every mqtt message received

and in the developers window, ctrl-shift-i on the keyboard and select the console tab and put part of the module name in the filter field

[MM-Hans]

@sdetweil
I forgot to mention that my mirror runs on a Raspberry Pi CM4 (in a Waveshare Magic Mirror). In the terminal (SSH) I can view logs with “pm2 log mm” but do not see any relevant details. CTRL-Shift-I doesn’t work if the software runs on a Raspberry, or am I mistaken?

I just got a message from Otto Paulsen, the creator of the module, and he hadn’t heard of this problem yet. That would mean it has nothing to do with the module.

[MM-Hans]

In general, “\xa0” can be used to add a space to the header, which works fine with all the modules I use. Unfortunately, that causes the mentioned problem with the MMM-MQTT module.

As soon as I remove “\xa0” the problem is solved and the module works properly. I know, it’s strange and I can’t explain it, but it’s what I see happening in my setup.