Based on low battery level detection by Sbyx: Low battery level detection & notification for all battery sensors
Description
This blueprint checks at configured time for all devices that was last seen x hours (sensors in ‘unavailable’ state are also included) ago and fires action then (like notification). You can include list of devices in notification message. You can also exclude some devices from checking (use their ‘last seen’ sensor entity as exluded entity)
Example of notification bellow:
Code:
actions: - device_id: a2a0b972c39a402aa8547899f9d15ee7 domain: mobile_app type: notify title: Urządzenie Zigbee niedostępne! message: '{{sensors}}'
Requirements
This blueprint is intended to work with Zigbee2MQTT devices that has ‘last seen’ sensors with ‘timestamp’ device_class (it is used to filter out sensors to check). It may work with other Zigbee integrations if there are also sensors with ‘last seen’ in name and ‘timestamp’ device_class.
You will need to enable ‘last_seen’ option in zigbee2mqtt configuration:
advanced: last_seen: ISO_8601_local
Remember also to enable ‘last seen’ sensors for all your Zigbee2MQTT devices (it is now disabled by default) in Home Assistant device page! You can also enable all ‘last seen’ sensors by default adding this to your Z2M configuration:
device_options: homeassistant: last_seen: enabled_by_default: true
Blueprint
Click the badge to import this Blueprint: (needs Home Assistant Core 2021.3 or higher)
blueprint:
name: Offline detection for Z2M devices with last_seen
description: Regularly test all sensors with 'last_seen' in name and 'timestamp' device_class
('last seen' Z2M sensors) to detect offline and if so execute an action.
domain: automation
input:
hours:
name: Hours not seen
description: Sensors not seen this amount of time are assumed to be offline.
default: 24
selector:
number:
min: 1.0
max: 168.0
unit_of_measurement: h
mode: slider
step: 1.0
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: "'last seen' sensors (from devices that you want to exclude) to
exclude from detection. Only entities with 'last seen' in name and 'timestamp'
in device_class are supported, devices must be expanded!"
default:
entity_id: []
selector:
target:
entity:
domain: sensor
actions:
name: Actions
description: Notifications or similar to be run. {{sensors}} is replaced with
the names of sensors being offline.
selector:
action: {}
source_url: https://gist.github.com/Mr-Groch/bf073b142b507e3b6f8154223f81803b
variables:
day: !input 'day'
hours: !input 'hours'
exclude: !input 'exclude'
sensors: "{% set result = namespace(sensors=[]) %}\
\ {% for state in states.sensor | rejectattr('attributes.device_class', 'undefined') | selectattr('attributes.device_class', '==', 'timestamp') %}\
\ {% if 'last_seen' in state.entity_id and not state.entity_id in exclude.entity_id and (states(state.entity_id) == 'unavailable' or ((as_timestamp(now()) - as_timestamp(states(state.entity_id))) > ((hours | int) * 60 * 60))) %}\
\ {% set result.sensors = result.sensors + [state.name | regex_replace(find=' last seen', replace='') ~ ' (' ~ relative_time(strptime(states(state.entity_id), '%Y-%m-%dT%H:%M:%S%z', 'unavailable')) ~ ')'] %}\
\ {% endif %}\
\ {% endfor %}\
\ {{ result.sensors | join(', ') }}"
trigger:
- platform: time
at: !input 'time'
condition:
- '{{ sensors != '''' and (day | int == 0 or day | int == now().isoweekday()) }}'
action:
- choose: []
default: !input 'actions'
mode: single
