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OTGateway/assets/ha/report_temp_to_otgateway_from_weather.yaml

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YAML

# Blueprint for reporting temperature to OpenTherm Gateway from home assistant weather integration
# Updated: 26.01.2026
blueprint:
name: Report temp to OpenTherm Gateway from Weather
domain: automation
author: "Laxilef"
input:
source_entity:
name: Source entity
description: "Temperature data source"
selector:
entity:
multiple: false
filter:
- domain: weather
target_entity:
name: Target entity
description: "Usually ``number.opentherm_outdoor_temp``"
default: "number.opentherm_outdoor_temp"
selector:
entity:
multiple: false
filter:
- domain: number
mode: single
variables:
source_entity: !input source_entity
target_entity: !input target_entity
trigger:
- platform: time_pattern
seconds: /30
condition:
- condition: template
value_template: "{{ states(source_entity) != 'unavailable' and states(target_entity) != 'unavailable' }}"
action:
- if:
- condition: or
conditions:
- condition: template
value_template: "{{ (state_attr(source_entity, 'temperature')|float(0) - states(target_entity)|float(0)) | abs | round(2) >= 0.1 }}"
- condition: template
value_template: "{{ (as_timestamp(now()) - as_timestamp(states[target_entity].last_updated)) | int(0) > 300 }}"
then:
- service: number.set_value
data:
value: "{{ state_attr(source_entity, 'temperature')|float(0)|round(2) }}"
target:
entity_id: "{{ target_entity }}"