Library for managing synthetic home device registry
Project description
synthetic-home
Library for generating synthetic homes, devices, and entities. This project is primarily used by the home-assistant-synthetic-home custom component that can make a home out of an inventory and the home-assistant-datasets which creates instances of synthetic homes and devices.
Overview
Home
A home contains a definition of home with areas and devices. This example home is called Family Farmhouse with two devices in the Kitchen.
---
name: Family Farmhouse
devices:
Kitchen:
- name: Light
device_type: light-dimmable
- name: Coffe Maker
device_type: smart-plug
device_info:
manufacturer: Shelly
Device Registry
The above devices are of type light-dimmable and smart-plug. These device types are defined in a Device Registry that maps a higher level device type into lower level entities. For example, a smart-plug device is represented by a switch and a sensor that measures power draw. A device can also define device states which are mapped to the individual entity states.
The home-assistant-datasets project uses an LLM to create devices within a home without having to worry about the lower level details of entities and attributes.
See the synthetic_home/registry for details on the registry.
Device types
Device types are defined to represent common configured household devices, but may not support every single feature in the smart home. That is, these are meant to be representative, but not necessarily exhaustive.
Each file in synthetic_home/registry
directory contains a device type name. New device
types may be added as new use cases are needed.
Inventory
An inventory is set of devies, areas, and most importantly individual Entities, and a default state and set of attributes. An inventory can be used by home-assistant-synthetic-home to actually load a Home Assistant instance with these areas, devices, and entities.
---
areas:
- name: Family room
id: family_room
devices:
- name: Floor Lamp
id: floor_lamp
area: family_room
info:
manufacturer: Wyze
entities:
- name: Floor Lamp Energy
id: sensor.floor_lamp_energy
area: family_room
device: floor_lamp
state: '1'
attributes:
device_class: sensor.SensorDeviceClass.ENERGY
state_class: sensor.SensorStateClass.TOTAL_INCREASING
native_unit_of_measurement: kWh
- name: Floor Lamp
id: switch.floor_lamp
area: family_room
device: floor_lamp
state: true
attributes:
device_class: switch.SwitchDeviceClass.OUTLET
Inventory Creation
There are multiple ways to create an inventory.
Export from Home Assistant
You can create a synthetic home inventory copied from an existing home assistant instance. You need to create an access token and export an inventory like this:
$ HASS_URL="http://home-assistant.home-assistant:8123"
$ API_TOKEN="XXXXXXXXXXX"
$ synthetic-home --debug export_inventory "${HASS_URL}" "${API_TOKEN}" > inventory.yaml
Manual Inventory
You can manually create an inventory by hand, but even better is to use a home definition
for a set of devies. See home-asssistant-datasets
for some existing repos of synthetic homes created by an LLM. Or create one yourself based on
devices you want to test defined in the device registry. Given an example famhouse-home.yaml
:
---
name: Family Farmhouse
devices:
Family Room:
- name: Family Room Lamp
device_type: light
device_info:
manufacturer: Phillips
model: Hue
- name: Family Room
device_type: hvac
device_info:
manufacturer: Nest
sw_version: 1.0.0
attributes:
unit_of_measurement: °F
current_temperature: 60
- name: Left Window
device_type: window-sensor
- name: Right Window
device_type: window-sensor
Entry:
- name: Front Door
device_type: smart-lock
Kitchen:
- name: Light
device_type: light-dimmable
- name: Coffe Maker
device_type: smart-plug
device_info:
manufacturer: Shelly
Master Bedroom:
- name: Bedroom Light
device_type: light-dimmable
- name: Bedroom Blinds
device_type: smart-blinds
device_info:
model: RollerBlinds
manufacturer: Motion Blinds
sw_version: 1.1.0
- name: Bedroom Window
device_type: window-sensor
Garage:
- name: Garage Door
device_type: garage-door
Front Yard:
- name: Front motion
device_type: motion-sensor
You can export an inventory file:
$ synthetic-home create_inventory famhouse-home.yaml > inventory.yaml
This can then be loaded into a home-assistants-synthetic-home custom component.
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