synthetic-home 2.0.1

Library for managing synthetic home device registry

synthetic-home

Library for managing synthetic home device registry. This project is primarily used by the home-assistant-synthetic-home custom component and the home-assistant-datasets which creates instances of synthetic homes.

See the synthetic_home/registry for details on the registry.

Example

This is an example of a synthetic hoome configuration file:

---
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

Device Type Registry

A device type is a definition of a type of physical device in a smart home. A device may additionally be represented by multiple entities. For example, a climate-hvac device may be represented by a climate entity and a temperature sensor entity.

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.

Entities

Entities are specified by platform, where each value is an entity description key defined in the code somewhere. That is, adding a new entity type requires it being implemented somewhere in the smart home (e.g. home-assistant-synthetic-home custom component).

Device State

A device type defines device_states that can support a pre-defined states that can be used for testing and evaluating the other systems using synthetic entities.

For example: When testing an HVAC device there are many different state attributes but there may only be a few interesting states to evaluate such as:

• The device is not running
• The device target temperature is set to a normal range
• The device target temperature is set to an abnormal range

We use the pre-canned device states to simplify data generation to not need to consider every possibibility. This is implemented effectively as if setting these attributes in the config file.

Device State Example

You can set a device_state inline in the home. A motion-sensor devices three states by default on, off, and battery-low. Be careful for special yaml truthy values, hence the value below is in quotes:

---
name: Family Farmhouse
devices:
  Front Yard:
    - name: Front Yard Motion
      device_type: motion-sensor
      device_state: "on"