Homeassistant Blueprints

low_battery_alert.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.
  domain: automation
  source_url: https://gist.github.com/mbainter/e621073433e277f7bcb1448d94c75b36#file-low_battery_alert-yaml


  # Blueprint Inputs
  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: {}
    # In this segment the user will selected the week days that te automation will be exectuted.
    monday_enabled:
      name: 'Monday'
      description: 'Run test on Monday'
      default: True
      selector:
        boolean:
    tuesday_enabled:
      name: Tuesday
      description: 'Run test on Tuesday'
      default: True
      selector:
        boolean:
    wednesday_enabled:
      name: Wednesday
      description: 'Run test on Wednesday'
      default: True
      selector:
        boolean:
    thursday_enabled:
      name: Thursday
      description: 'Run test on Thursday'
      default: True
      selector:
        boolean:
    friday_enabled:
      name: Friday
      description: 'Run test on Friday'
      default: True
      selector:
        boolean:
    saturday_enabled:
      name: Saturday
      description: 'Run test on Saturday'
      default: True
      selector:
        boolean:
    sunday_enabled:
      name: Sunday
      description: 'Run test on Sunday'
      default: True
      selector:
        boolean:

    exclude:
      name: Excluded Sensors
      description: Battery sensors (e.g. smartphone) to exclude from detection. Only entities are supported, areas and devices must be expanded!
      default: {}
      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:


variables:
  monday_enabled: !input 'monday_enabled'
  tuesday_enabled: !input 'tuesday_enabled'
  wednesday_enabled: !input 'wednesday_enabled'
  thursday_enabled: !input 'thursday_enabled'
  friday_enabled: !input 'friday_enabled'
  saturday_enabled: !input 'saturday_enabled'
  sunday_enabled: !input 'sunday_enabled'

  current_day: '{{ now().weekday() | int }}'

  threshold: !input 'threshold'

  exclude: !input 'exclude'

  sensors: >-
    {% set result = namespace(sensors=[]) %}
    {% for state in states.sensor | selectattr('attributes.device_class', '==', 'battery') %}
      {% if exclude.entity_id is defined %}
        {% 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 %}
      {% else %}
        {% if 0 <= state.state | int(-1) < threshold | int %}
          {% set result.sensors = result.sensors + [state.name ~ ' (' ~ state.state ~ ' %)'] %}
        {% endif %}
      {% endif %}
    {% endfor %}
    {% for state in states.binary_sensor | selectattr('attributes.device_class', '==', 'battery') | selectattr('state', '==', 'on') %}
      {% if exclude.entity_id is defined %}
        {% if not state.entity_id in exclude.entity_id %}
          {% set result.sensors = result.sensors + [state.name] %}
        {% endif %}
      {% else %}
        {% set result.sensors = result.sensors + [state.name] %}
      {% endif %}
    {% endfor %}
    {{result.sensors|join(', ')}}


# Triggers
trigger:
  - platform: time
    at: !input 'time'


# Conditions used to determine if the automation should run for the specific trigger event
condition:
# Check if the automation is supposed to be executed during that specific weekday
  - condition: template
    value_template: >-
        {{ 
          (current_day == 0 and monday_enabled) or 
          (current_day == 1 and tuesday_enabled) or 
          (current_day == 2 and wednesday_enabled) or
          (current_day == 3 and thursday_enabled) or 
          (current_day == 4 and friday_enabled) or
          (current_day == 5 and saturday_enabled) or
          (current_day == 6 and sunday_enabled)
        }}


  # Check if the sensors list is not empty
  - condition: template
    value_template: >-
        {{ sensors != '''' }}


# Actions
action:
  - choose: []
    default: !input 'actions'
  
mode: single
max_exceeded: silent