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####################################################################################################################### |
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## Sensor - Unavailable Sensors |
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## - state: number of unavailable sensors |
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## - attribute: sensor_names - comma separated list of unavailable sensor names |
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## - attribute: sensor_entities: - comma separated list of unavailable sensor entity id's |
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## - updates every minute (sensor.time) |
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## - sensor entity_id's in ignored_sensors are filtered from this sensor |
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## - group.ignored_sensors MUST exist even if empty for sensor template to render |
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####################################################################################################################### |
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sensor: |
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- platform: template |
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sensors: |
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unavailable_sensors: |
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entity_id: sensor.time |
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friendly_name_template: > |
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{% if states('sensor.unavailable_sensors') | int == 0 %} |
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Sensors All Available |
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{% else %} |
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Sensors Are Unavailable |
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{% endif %} |
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icon_template: >- |
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{% if states('sensor.unavailable_sensors') | int == 0 %} |
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mdi:thumb-up |
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{% else %} |
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mdi:thumb-down |
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{% endif %} |
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value_template: > |
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{% set ignored_sensors = state_attr('group.ignored_sensors', 'entity_id') %} |
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{% set unavail = states.sensor | selectattr('state', 'eq', 'unavailable') |
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| rejectattr('entity_id', 'in', ignored_sensors) |
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| map(attribute='name') |
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| list |
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| length %} |
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{{ unavail }} |
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attribute_templates: |
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sensor_names: > |
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{% set ignored_sensors = state_attr('group.ignored_sensors', 'entity_id') %} |
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{% set sensor_names = states.sensor | selectattr('state', 'eq', 'unavailable') |
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| rejectattr('entity_id', 'in', ignored_sensors) |
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| map(attribute='name') |
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| list |
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| join(', ') %} |
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{{ sensor_names }} |
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sensor_entity_ids: > |
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{% set ignored_sensors = state_attr('group.ignored_sensors', 'entity_id') %} |
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{% set sensor_ids = states.sensor | selectattr('state', 'eq', 'unavailable') |
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| rejectattr('entity_id', 'in', ignored_sensors) |
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| map(attribute='entity_id') |
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| list |
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| join(', ') %} |
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{{ sensor_ids }} |
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group: |
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ignored_sensors: |
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entities: |
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- sensor.ssl_certificate_expiry |
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automation: |
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- id: sensor_unavailable_notification |
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alias: "Sensor Unavailable Notification" |
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description: "Send notification when sensor goes offline." |
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trigger: |
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# run whenever unavailable sensors sensor state changes |
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- platform: state |
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entity_id: sensor.unavailable_sensors |
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condition: |
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# only run if the number of unavailable sensors had gone up |
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- condition: template |
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value_template: "{{ trigger.to_state.state | int > trigger.from_state.state | int }}" |
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action: |
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# wait 30 seconds before rechecking sensor state |
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- delay: |
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seconds: 30 |
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# make sure the sensor is updated before we check the state |
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- service: homeassistant.update_entity |
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entity_id: sensor.unavailable_sensors |
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# only continue if current number of sensors is equal or more than the number when triggered |
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- condition: template |
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value_template: "{{ states('sensor.unavailable_sensors') | int >= trigger.to_state.state | int }} " |
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# create a persistent notification |
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- service: persistent_notification.create |
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data_template: |
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title: "Sensor Unavailable" |
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message: "### Unavailable Sensors: {{ '\n' + state_attr('sensor.unavailable_sensors','sensor_names').split(', ') | join('\n') }}" |
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notification_id: 'sensor_alert' |
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- id: dismiss_sensor_unavailable_notification |
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alias: "Dismiss Sensor Unavailable Notification" |
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description: "Send notification when sensor goes offline." |
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trigger: |
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# run when there are no more unavailable |
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- platform: numeric_state |
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entity_id: sensor.unavailable_sensors |
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below: 1 |
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action: |
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# dismiss the persistent notification |
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- service: persistent_notification.dismiss |
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data: |
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notification_id: 'sensor_alert' |
