but I see that with other topics , you get (? topics, ? messages) and not with Visvoeder.
Alternative is a template sensor, with the attribute of 
I see on other topics that they also have no ? topics, ? messages
How do you make that =>
Alternative is a template sensor, with the attribute of
Settings → Devices & Services → Helpers → Add Helper → Template
and in state template
{{state_attr(‘sensor.0xxxx_click’, ‘voltage_l2’) }} (did not retype that sensor !!)
