Home Assistant Blueprint: Notify or do something when an appliance like a dishwasher or washing machine finishes

notify-or-do-something-when-an-appliance-like-a-dishwasher-or-washing-machine-finishes.yaml

blueprint:
  name: Appliance has finished
  description: Do something when an appliance (like a washing machine or dishwasher)
    has finished as detected by a power sensor.
  domain: automation
  input:
    power_sensor:
      name: Power Sensor
      description: Power sensor entity (e.g. from a smart plug device).
      selector:
        entity:
          domain: sensor
    starting_threshold:
      name: Starting power threshold
      description: Power threshold above which we assume the appliance has started.
      default: 5
      selector:
        number:
          min: 1.0
          max: 100.0
          unit_of_measurement: W
          mode: slider
          step: 1.0
    starting_hysteresis:
      name: Starting hysteresis
      description: Time duration the power measurement has to stay above the starting
        power threshold.
      default: 5
      selector:
        number:
          min: 0.25
          max: 60.0
          unit_of_measurement: min
          mode: slider
          step: 0.25
    finishing_threshold:
      name: Finishing power threshold
      description: Power threshold below which we assume the appliance has finished.
      default: 5
      selector:
        number:
          min: 1.0
          max: 100.0
          unit_of_measurement: W
          mode: slider
          step: 1.0
    finishing_hysteresis:
      name: Finishing hysteresis
      description: Time duration the power measurement has to stay below the finishing
        power threshold.
      default: 5
      selector:
        number:
          min: 0.25
          max: 60.0
          unit_of_measurement: min
          mode: slider
          step: 0.25
    actions:
      name: Actions
      description: Actions (e.g. pushing a notification, TTS announcement, ...)
      selector:
        action: {}
    pre_actions:
      name: Actions
      description: Actions when starting threshhold is crossed
      selector:
        action: {}
  source_url: https://gist.github.com/sbyx/6d8344d3575c9865657ac51915684696
trigger:
- platform: numeric_state
  entity_id: !input 'power_sensor'
  for:
    minutes: !input 'starting_hysteresis'
  above: !input 'starting_threshold'
condition: []
action:
- choose: []
  default: !input 'pre_actions'
- wait_for_trigger:
  - platform: numeric_state
    entity_id: !input 'power_sensor'
    below: !input 'finishing_threshold'
    for:
      minutes: !input 'finishing_hysteresis'
- choose: []
  default: !input 'actions'
mode: single
max_exceeded: silent

For those getting, 'Message malformed: Missing input pre_actions', add a wait time of 1 second into, 'Actions when starting threshhold is crossed' section at the bottom and it'll be saveable.

Thank you to the author of this plugin - it is very useful.

PS, Threshold has been spelt incorrectly :)

I was also struggling with the error message Message malformed: Missing input pre_actions.
You have to define a pre-action. If you do not need one, you can add just a 1s delay like @Steeveeveeve mentioned.
Here is my yaml file which you can copy and paste into the yaml editor.

alias: Waschmaschine ist fertig
description: ""
use_blueprint:
  path: >-
    sbyx/notify-or-do-something-when-an-appliance-like-a-dishwasher-or-washing-machine-finishes.yaml
  input:
    power_sensor: sensor.switch_bathroomfloor_plug_washingmashine_power
    starting_threshold: 100
    starting_hysteresis: 5
    finishing_threshold: 5
    finishing_hysteresis: 5
    actions:
      - service: notify.mobile_app_heliumhypernet
        metadata: {}
        data:
          message: Waschmaschine ist fertig
          title: I am done
    pre_actions:
      - delay:
          hours: 0
          minutes: 0
          seconds: 1
          milliseconds: 0

This blueprint stopped working for me yesterday with these errors:

Logger: homeassistant.components.automation.washing_has_finished
Source: helpers/script.py:2032
integration: Automation ([documentation](https://www.home-assistant.io/integrations/automation), [issues](https://github.com/home-assistant/core/issues?q=is%3Aissue+is%3Aopen+label%3A%22integration%3A+automation%22))
First occurred: 10:44:36 (2 occurrences)
Last logged: 10:44:36

Washing has started or finished: Choose at step 1: default: Error executing script. Invalid data for call_service at pos 4: must contain at least one of entity_id, device_id, area_id, floor_id, label_id.
Washing has started or finished: Error executing script. Invalid data for choose at pos 1: must contain at least one of entity_id, device_id, area_id, floor_id, label_id

Followed by this one:

Logger: homeassistant.components.automation.washing_has_finished
Source: components/automation/__init__.py:764
integration: Automation ([documentation](https://www.home-assistant.io/integrations/automation), [issues](https://github.com/home-assistant/core/issues?q=is%3Aissue+is%3Aopen+label%3A%22integration%3A+automation%22))
First occurred: 10:44:36 (1 occurrences)
Last logged: 10:44:36

Error while executing automation automation.washing_has_finished: must contain at least one of entity_id, device_id, area_id, floor_id, label_id.

I wonder if it's possible to modify the blueprint to use entity attributes too.
When using localtuya with a switch sensor - the current data is with an attribute, not an individual sensor.

I obviously can create a template sensor for that, but still...

One more question.
I want to add to the notification the following information:

1. Duration (in minutes)
2. Total power consumption

I want the action to look something like:

action:
  service: telegram_bot.send_message
  data:
    target: !input telegram_chat_id
    message: >
      Appliance has finished running for {{ time_running }} with a power consumption of {{ power_consumed }}.

Anyone has any idea if and how could this be possible?
I thought of adding within the pre_actions a set for a time helper sensor.
But I have no idea how to:

1. Calculate the duration between times
2. Calculate the total consumption