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Home Assistant Blueprint: Low battery level detection & notification for all battery sensors
blueprint:
name: Report offline zigbee/zwave/battery/smart plug devices
description: Works with Smart Plugs, ZWave, Zigbee etc (Works with ZHA & Z2M)
#By Tahutipai 2024-02-21
#Originally Based on the work of Sybx @ https://community.home-assistant.io/t/low-battery-level-detection-notification-for-all-battery-sensors/258664
#Note: This has been upgraded to report only the Device that is offline, not multiple individual sensors within one Device
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
- switch
actions:
name: Actions
description: Call your notification here. {{offline_devices}} will replaced with the name of any offline devices
selector:
action: {}
source_url: https://gist.github.com/Tahutipai/971bf0e07e50ce6190e0dacd73262e2e
variables:
day: !input 'day'
exclude: !input 'exclude'
offline_devices: >-
{% set result = namespace(offline_devices=[]) %}
{% for sensor in states.sensor | selectattr('attributes.device_class', 'defined') | selectattr('attributes.device_class', '==', 'battery') %}
{% if "unavailable" in sensor | string and not sensor.entity_id in exclude.entity_id %}
{% set result.offline_devices = result.offline_devices + [state_attr(sensor.entity_id, "friendly_name")] %}
{% endif %}
{% endfor %}
{% for binary_sensor in states.binary_sensor | selectattr('attributes.device_class', 'defined') | selectattr('attributes.device_class', '==', 'battery') %}
{% if "unavailable" in binary_sensor | string and not binary_sensor.entity_id in exclude.entity_id %}
{% set result.offline_devices = result.offline_devices + [state_attr(binary_sensor.entity_id, "friendly_name")] %}
{% endif %}
{% endfor %}
{% for switch in states.switch | selectattr('state','eq','unavailable') %}
{% if switch.entity_id not in exclude.entity_id %}
{% set result.offline_devices = result.offline_devices + [device_attr(device_id(switch.entity_id), "name")] %}
{% endif %}
{% endfor %}
{{result.offline_devices|sort|unique|join('\n')}}
trigger:
- platform: time
at: !input 'time'
condition:
- '{{ offline_devices != '''' and (day | int == 0 or day | int == now().isoweekday()) }}'
action:
- choose: []
default: !input 'actions'
mode: single
@mukul-k
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mukul-k commented Apr 22, 2024

I get the same error that I did with the original with it failing to run. Not sure if you have any ideas?

Logger: homeassistant.components.automation.notification_offline_devices
Source: components/automation/init.py:675
integration: Automation (documentation, issues)
First occurred: 8:11:22 PM (3 occurrences)
Last logged: 8:13:12 PM

Error rendering variables: TemplateError: Must provide a device or entity ID

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