(v2.1x) New dallassensor mqtt topic usage?

[giovanne123]

Tested #540 with 2.1.0b12, esp8266
Manual edit of climate.yaml, no usage of Auto discover.
Do I something wrong in the value_json?
See error in HA (0.116.4) below:

Mqtt topic and data is received as expected, checked in mqtt-explorer.

current_temperature_topic: "ems-esp/dallassensor_data"                       

current_temperature_template: "{{ value_json.10-7E42-7001-0800 }}"

2020-10-26 22:16:46 ERROR (MainThread) [homeassistant.helpers.template] Error parsing value: dict object has no element 10 (value: {"10-7E42-7001-0800":20.2}, template: {{ value_json.10-7E42-7001-0800 }})

[proddy]

The json key has special characters so you can't use the value_json.* syntax. Use [key] instead. See https://www.home-assistant.io/docs/configuration/templating/#processing-incoming-data

Also you can test yourself in HA using Developer Tools->Template and something like

{% set test = {
    "28-EA41-9497-0E03": 18.2
} %}


{{ test['28-EA41-9497-0E03'] }}

[proddy]

and you really should be using the HA format if using Home Assistant. If you don't want to use MQTT discovery turn it off in configuration.yaml.

[giovanne123]

Thanks, is working.
I will give the HA format a try. Wasn't aware that there is a separate MQTT Option in EMS-ESP.
Also will have a look to the MQTT discovery. For the moment I edited manually to understand more and more, but maybe not the right way ;-)

[giovanne123]

@proddy, one question before I start to modify all my setup to mqtt HA option and discovery:
Is this #438 (comment) still fact?
Because my BuderusGB132/RC30 is also configured to only be outdoortemp controlled and there isn't a "currtemp" reported therefore I currently using the external DallasSensor (attached to EMS-ESP) which is manually edited in the climate.yaml for "currtemp".
Won't this work with discovery setup?

[proddy]

good point, it will most likely show an error in the HA logs. I'm not sure how bad that is. I'll have to try it out myself and see.

[proddy]

@giovanne123 see #582