Home Assistant Blueprints

low_battery_blueprint.yaml

blueprint:
  name: Low battery level detection & notification for all battery sensors
  description: Regularly test all sensors with 'battery' device-class for crossing
    a certain battery level threshold and if so execute an action. Marck/home-assistant-automation-blueprints/blob/main/low-battery-level-detection-notification-for-all-battery-sensors
  domain: automation
  input:
    threshold:
      name: Battery warning level threshold
      description: Battery sensors below threshold are assumed to be low-battery (as
        well as binary battery sensors with value 'on').
      default: 20
      selector:
        number:
          min: 5.0
          max: 100.0
          unit_of_measurement: '%'
          mode: slider
          step: 5.0
    time:
      name: Time to test on
      description: Test is run at configured time
      default: '10:00:00'
      selector:
        time: {}
    day:
      name: Weekday to test on
      description: 'Test is run at configured time either everyday (0) or on a given
        weekday (1: Monday ... 7: Sunday)'
      default: 0
      selector:
        number:
          min: 0.0
          max: 7.0
          mode: slider
          step: 1.0
    exclude:
      name: Excluded Sensors
      description: Battery sensors (e.g. smartphone) to exclude from detection. Only
        entities are supported, devices must be expanded!
      default:
        entity_id: []
      selector:
        target:
          entity:
            device_class: battery
    actions:
      name: Actions
      description: Notifications or similar to be run. {{sensors}} is replaced with
        the names of sensors being low on battery.
      selector:
        action: {}
  source_url: https://gist.github.com/robweber/b87dd8abf2672b2887e26060cff4e1ad#file-low_battery_blueprint-yaml
variables:
  day: !input 'day'
  threshold: !input 'threshold'
  exclude: !input 'exclude'
  sensors: >
    {% set result = namespace(sensors=[]) %} 
    {% for state in states.sensor
      | rejectattr('attributes.device_class', 'undefined')
      | selectattr('attributes.device_class', '==', 'battery') %} 
      {% if 0 <= state.state | int(-1) < threshold | int 
        and not state.entity_id in exclude.entity_id
        and state.entity_id not in integration_entities("mobile_app") %}
        {% set result.sensors = result.sensors + [state.name ~ ' (' ~ state.state ~ ' %)'] %}
      {% endif %}
    {% endfor %}
    {% for state in states.binary_sensor
      | rejectattr('attributes.device_class', 'undefined')
      | selectattr('attributes.device_class', '==', 'battery')
      | selectattr('state', '==', 'on') %}
      {% if not state.entity_id in exclude.entity_id %}
        {% set result.sensors = result.sensors + [state.name] %}
      {% endif %}
    {% endfor %}
    {{result.sensors|join('\n')}}"
trigger:
- platform: time
  at: !input 'time'
condition:
- '{{ sensors != '''' and (day | int == 0 or day | int == now().isoweekday()) }}'
action:
- choose: []
  default: !input 'actions'
mode: single