Anyone who is using this solution, I have a quick update. I was unable to use the position_template thing that c_wolsey was using to determine position/state and earlier I was looking for a way to retain the states of my door/window sensors when I found this thread.
The thread shows you how to set up automations for simple sensors that don’t have MQTT/Sonoff stored position data. That way, the automations can force retention of the sensor’s state by the MQTT broker. Anyway, I used that model to set up a way to store the state data for the curtain when I send a command from my remote or HA. This is what my automation looks like:
- id: publish_mqtt_from_master_bedroom_curtain_codes
alias: Publish MQTT From Master Bedroom Curtain Codes
trigger:
- platform: mqtt
topic: 'cmnd/sonoff-bridge/backlog'
condition:
- condition: template
value_template: "{{ trigger.payload in ('rfraw AA B0 35 05 04 12FC 05DC 02D0 0168 1EE6 A481A3A3B2B2B2A3A3A3B2A3A3A3B2B2A3A3A3A3A3A3B2A3B2B2B2B2B2B2B2A3B2A3B2B2B2A3B2B2B2 55;rfraw off', 'rfraw AA B0 35 05 04 12FC 05DC 02D0 0168 1EF0 A481A3A3B2B2B2A3A3A3B2A3A3A3B2B2A3A3A3A3A3A3B2A3B2B2B2B2B2B2B2A3B2A3B2B2A3A3B2B2A3 55;rfraw off', 'rfraw AA B0 35 05 04 12FC 05DC 02C6 0168 1EE6 A481A3A3B2B2B2A3A3A3B2A3A3A3B2B2A3A3A3A3A3A3B2A3B2B2B2B2B2B2B2A3B2A3B2A3B2A3B2A3B2 55;rfraw off') }}"
action:
- service: mqtt.publish
data_template:
topic: "433/Master_Bedroom_Curtain"
payload: >-
{%- if trigger.payload == 'rfraw AA B0 35 05 04 12FC 05DC 02D0 0168 1EE6 A481A3A3B2B2B2A3A3A3B2A3A3A3B2B2A3A3A3A3A3A3B2A3B2B2B2B2B2B2B2A3B2A3B2B2B2A3B2B2B2 55;rfraw off' -%}
ON
{%- else -%}
OFF
{%- endif -%}
retain: True
Now I have a state_topic in MQTT called 433/Master_Bedroom_Curtain and if I add to my curtain cover the state_topic, state_open and state_closed like this:
- platform: mqtt
device_class: curtain
name: "Master Bedroom Curtains"
command_topic: "cmnd/sonoff-bridge/backlog"
payload_open: "rfraw AA B0 35 05 04 12FC 05DC 02D0 0168 1EE6 A481A3A3B2B2B2A3A3A3B2A3A3A3B2B2A3A3A3A3A3A3B2A3B2B2B2B2B2B2B2A3B2A3B2B2B2A3B2B2B2 55;rfraw off"
payload_close: "rfraw AA B0 35 05 04 12FC 05DC 02D0 0168 1EF0 A481A3A3B2B2B2A3A3A3B2A3A3A3B2B2A3A3A3A3A3A3B2A3B2B2B2B2B2B2B2A3B2A3B2B2A3A3B2B2A3 55;rfraw off"
payload_stop: "rfraw AA B0 35 05 04 12FC 05DC 02C6 0168 1EE6 A481A3A3B2B2B2A3A3A3B2A3A3A3B2B2A3A3A3A3A3A3B2A3B2B2B2B2B2B2B2A3B2A3B2A3B2A3B2A3B2 55;rfraw off"
state_topic: "433/Master_Bedroom_Curtain"
state_open: "ON"
state_closed: "OFF"
It will set the state when I click a button. Click ‘open’ and the icon changes to opened, click ‘close’ and the icon changes to closed. Obviously, this isn’t ideal/perfect because there is a delay on the curtain to open/close but it works very well since we don’t have a native position value from the unit. You’ll notice that if I hit the ‘stop’ button it’ll act like the curtain is closed – not sure what to do with that… 
==EDIT==
So I’ve been messing with this thing a little more and I found that I can setup and if, elif, else integrating the stop button and taking advantage of the position_topic instead of the state_topic. It works even better!
configuration.yaml:
cover:
- platform: mqtt
device_class: curtain
name: "Master Bedroom Curtains"
command_topic: "cmnd/sonoff-bridge/backlog"
payload_open: "rfraw AA B0 35 05 04 12FC 05DC 02D0 0168 1EE6 A481A3A3B2B2B2A3A3A3B2A3A3A3B2B2A3A3A3A3A3A3B2A3B2B2B2B2B2B2B2A3B2A3B2B2B2A3B2B2B2 55;rfraw off"
payload_close: "rfraw AA B0 35 05 04 12FC 05DC 02D0 0168 1EF0 A481A3A3B2B2B2A3A3A3B2A3A3A3B2B2A3A3A3A3A3A3B2A3B2B2B2B2B2B2B2A3B2A3B2B2A3A3B2B2A3 55;rfraw off"
payload_stop: "rfraw AA B0 35 05 04 12FC 05DC 02C6 0168 1EE6 A481A3A3B2B2B2A3A3A3B2A3A3A3B2B2A3A3A3A3A3A3B2A3B2B2B2B2B2B2B2A3B2A3B2A3B2A3B2A3B2 55;rfraw off"
position_topic: "433/Master_Bedroom_Curtain"
automation.yaml:
automation:
- id: publish_mqtt_from_master_bedroom_curtain_codes
alias: Publish MQTT From Master Bedroom Curtain Codes
trigger:
- platform: mqtt
topic: 'cmnd/sonoff-bridge/backlog'
condition:
- condition: template
value_template: "{{ trigger.payload in ('rfraw AA B0 35 05 04 12FC 05DC 02D0 0168 1EE6 A481A3A3B2B2B2A3A3A3B2A3A3A3B2B2A3A3A3A3A3A3B2A3B2B2B2B2B2B2B2A3B2A3B2B2B2A3B2B2B2 55;rfraw off', 'rfraw AA B0 35 05 04 12FC 05DC 02D0 0168 1EF0 A481A3A3B2B2B2A3A3A3B2A3A3A3B2B2A3A3A3A3A3A3B2A3B2B2B2B2B2B2B2A3B2A3B2B2A3A3B2B2A3 55;rfraw off', 'rfraw AA B0 35 05 04 12FC 05DC 02C6 0168 1EE6 A481A3A3B2B2B2A3A3A3B2A3A3A3B2B2A3A3A3A3A3A3B2A3B2B2B2B2B2B2B2A3B2A3B2A3B2A3B2A3B2 55;rfraw off') }}"
action:
- service: mqtt.publish
data_template:
topic: "433/Master_Bedroom_Curtain"
payload: >-
{%- if trigger.payload == 'rfraw AA B0 35 05 04 12FC 05DC 02D0 0168 1EE6 A481A3A3B2B2B2A3A3A3B2A3A3A3B2B2A3A3A3A3A3A3B2A3B2B2B2B2B2B2B2A3B2A3B2B2B2A3B2B2B2 55;rfraw off' -%}
100
{%- elif trigger.payload == 'rfraw AA B0 35 05 04 12FC 05DC 02D0 0168 1EF0 A481A3A3B2B2B2A3A3A3B2A3A3A3B2B2A3A3A3A3A3A3B2A3B2B2B2B2B2B2B2A3B2A3B2B2A3A3B2B2A3 55;rfraw off' -%}
0
{%- else -%}
50
{%- endif -%}
retain: True
Anyway, thought I’d share.
-Greg
