Set Sonoff TRV external temperature from external sensor

sonoff_trv_external_temp.yaml

blueprint:
  name: TRV External Temp
  description: Set external temp on TRV (Need to set sensor to external)
  domain: automation
  input:
    trv:
      name: TRV Ext Temp
      description: Temperature to set
      selector:
        entity:
          filter:
            domain: number
            device_class: temperature
    temp_sensors:
      name: Temp Sensors
      description: Sensors to use to set TRV
      selector:
        entity:
          multiple: true
          filter:
            domain: sensor
            device_class: temperature

mode: restart

triggers:
  - trigger: state
    entity_id: !input temp_sensors

actions:
  - action: number.set_value
    data:
      value: "{{trigger.to_state.state}}"
    target:
      entity_id: !input trv