Low battery level detection & notification for all HA-Battery-Notes battery sensors

low-battery-level-detection-notification-for-all-ha-battery-notes-battery-sensors.yaml

blueprint:
  name: Low battery level detection & notification for all HA-Battery-Notes battery sensors
  description:
    Regularly test all ha-battery-notes (https://github.com/andrew-codechimp/HA-Battery-Notes)
    sensors with 'battery' device-class for crossing the configured battery level threshold
    and if so, execute an action.
  domain: automation
  input:
    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
        a list of battery entities being low on battery that include properties {{name}}
        {{description}} (which lists the current battery entity name & percentage) and
        {{battery_type}} (if supported).
      selector:
        action: {}
  source_url: https://gist.github.com/dskindell/5d19c2c8a833827c1a2d727f7667a3ea
variables:
  day: !input day
  exclude: !input exclude
  sensors: >-
    {% set result = namespace(sensors=[]) %}
    {% for state in states.sensor
      | selectattr('attributes.device_class', '==', 'battery')
      | rejectattr('entity_id', 'in', exclude) %}
      {% if state.state|int(-1) != -1 and
            not state.entity_id in exclude.entity_id %}
        {% set low_battery_entity_id = 'binary_' ~ state.entity_id|replace('_battery', '_battery_low') %}
        {% set low_battery_plus_entity_id = 'binary_' ~ state.entity_id|replace('_battery', '_battery_plus_low') %}
        {% set low_battery_state = states(low_battery_plus_entity_id) if states(low_battery_plus_entity_id) != 'unknown' else states(low_battery_entity_id) %}
        {% if low_battery_state == 'on' %}
          {% set battery_type = states(state.entity_id ~ '_type')
            | replace('_ind', '(industrial)')
            | replace('_Li', '(Li-ion)') %}
          {% set result.sensors = result.sensors + [{
            'name': state.name,
            'description': state.name|replace(' Battery', '') ~ ' (' ~ ((battery_type ~ ' at ') if battery_type != 'unknown') ~ state.state ~ '%)',
            'battery_type': battery_type
            }] %}
        {% endif %}
      {% endif %}
    {% endfor %}
    {{result.sensors}}
trigger:
  - platform: time
    at: !input time
condition:
  - "{{ sensors|length > 0 and (day | int == 0 or day | int == now().isoweekday()) }}"
action:
  - choose: []
    default: !input actions
mode: single