low-battery.yaml

---
# SPDX-License-Identifier: MIT
#
# Original code from:
# https://gist.github.com/sbyx/1f6f434f0903b872b84c4302637d0890
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.
  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: {}
  # yamllint disable-line rule:line-length
  source_url: https://raw.githubusercontent.com/tykeal/homeassistant-blueprints/master/low-battery.yaml
variables:
  day: !input 'day'
  threshold: !input 'threshold'
  exclude: !input 'exclude'
  # yamllint disable rule:line-length
  sensors: >-
    {% set result = namespace(sensors=[]) %}
    {% for state in states.sensor | selectattr('attributes.device_class', '==', 'battery') %}
      {% if 0 <= state.state | int(-1) < threshold | int and not state.entity_id in exclude.entity_id %}
        {% set result.sensors = result.sensors + [state.name ~ ' (' ~ state.state ~ ' %)'] %}
      {% endif %}
    {% endfor %}
    {% for state in states.binary_sensor | 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(', ')}}
  # yamlline enable
trigger:
  - platform: time
    at: !input 'time'
condition:
  - '{{ sensors != '''' and (day | int == 0 or day | int == now().isoweekday()) }}'
action:
  - choose: []
    default: !input 'actions'
mode: single