Hi HA Community,
Tinkering w/o sucess sucks 
I do want to change my garage door integration to a shelly1plus running a script that uses MQTT with HA and a MQTT cover. Almost everything works, however, i fail with dynamic setting of my icon. I run updated HA on an odroid-n2.
- Home Assistant 2022.8.2
- Supervisor 2022.07.0
- Operating System 8.4
- Frontend 20220802.0 - latest
The config i use is:
mqtt:
cover:
- name: "Garagentor"
device_class: "garage"
unique_id: "MQTTGARAGE"
command_topic: "home-assistant/garage/set"
payload_open: "OPEN"
payload_close: "CLOSE"
payload_stop: "STOP"
state_topic: "home-assistant/garage/state"
state_open: "open"
state_opening: "opening"
state_closed: "closed"
state_closing: "closing"
icon: >-
{% if states['cover.garagentor'].state == 'open' %}
'mdi:garage-open'
{% elif states['cover.garagentor'].state == 'closed' %}
'mdi:garage'
{% elif states['cover.garagentor'].state == 'opening' %}
'mdi:arrow-up-bold'
{% elif states['cover.garagentor'].state == 'closing' %}
'mdi:arrow-down-bold'
{%else%}
'mdi:alert'
{%endif%}
i think it is not part of my issue, but the shelly script is here:
Id say it works good, just the dyn icon fails greatly.
Imagine the following matrix:
- I update the status via Dev Tools / States
- I update the status via shelly / mqtt. I can see the correct state under Dev Tools / States
and
A. I review the output of the icon script in the Dev Tools / Template
B. I look at the Icon in the Dashboard or App.
Now what drives me crazy
1A - works. i can see always the right icon name
2A - works. i can see always the right icon name (!)
1B - works. i can see the icon change as soon as i sert the state
2B - nope. no icon is shown. empty.
That drives me a little cazy.
My conlusions:
- My Icon Template works
- The way i configured the MQTT cover works. I can see in the status the correct values; i can send the right results
- Dynamicl changing of cover icons work
So, I’d say, it must work perfectly, right?
But it does not. Can anybody hint me into what could possibly go wrong here? I miss what i could possibly look after anymore…
Best
Michael