Add Casper Glow integration

[mikeodr]

Proposed change

Add a new integration for Casper Glow Bluetooth controllable lights.

Type of change

• Dependency upgrade
• Bugfix (non-breaking change which fixes an issue)
• New integration (thank you!)
• New feature (which adds functionality to an existing integration)
• Deprecation (breaking change to happen in the future)
• Breaking change (fix/feature causing existing functionality to break)
• Code quality improvements to existing code or addition of tests

Additional information

• This PR fixes or closes issue: fixes #
• This PR is related to issue:
• Link to documentation pull request: Add Casper Glow integration documentation home-assistant.io#43793
• Link to developer documentation pull request:
• Link to frontend pull request:

Checklist

• I understand the code I am submitting and can explain how it works.
• The code change is tested and works locally.
• Local tests pass. Your PR cannot be merged unless tests pass
• There is no commented out code in this PR.
• I have followed the development checklist
• I have followed the perfect PR recommendations
• The code has been formatted using Ruff (ruff format homeassistant tests)
• Tests have been added to verify that the new code works.
• Any generated code has been carefully reviewed for correctness and compliance with project standards.

If user exposed functionality or configuration variables are added/changed:

• Documentation added/updated for www.home-assistant.io

If the code communicates with devices, web services, or third-party tools:

• The manifest file has all fields filled out correctly.
  Updated and included derived files by running: python3 -m script.hassfest.
• New or updated dependencies have been added to requirements_all.txt.
  Updated by running python3 -m script.gen_requirements_all.
• For the updated dependencies a diff between library versions and ideally a link to the changelog/release notes is added to the PR description.

To help with the load of incoming pull requests:

• I have reviewed two other open pull requests in this repository.

Quality Checklist

Bronze

• action-setup - Service actions are registered in async_setup
• appropriate-polling - If it's a polling integration, set an appropriate polling interval - STATE_POLL_INTERVAL = timedelta(seconds=30) used in coordinator._needs_poll()
• brands - Has branding assets available for the integration - Add casper glow brand icon brands#9878
• common-modules - Place common patterns in common modules - entity.py, models.py, coordinator.py, const.py
• config-flow-test-coverage - Full test coverage for the config flow - test_config_flow.py
• config-flow - Integration needs to be able to be set up via the UI - config_flow.py
  • Uses data_description to give context to fields - strings.json#L18-L20
  • Uses ConfigEntry.data and ConfigEntry.options correctly - init.py#L59, models.py
• dependency-transparency - Dependency transparency - "requirements": ["pycasperglow==1.0.1"] pypi OSI License CI Pipeline
• docs-actions - The documentation describes the provided service actions that can be used - services.yaml, Add Casper Glow integration documentation home-assistant.io#43793
• docs-high-level-description - The documentation includes a high-level description of the integration brand, product, or service - Add Casper Glow integration documentation home-assistant.io#43793
• docs-installation-instructions - The documentation provides step-by-step installation instructions for the integration, including, if needed, prerequisites - Add Casper Glow integration documentation home-assistant.io#43793
• docs-removal-instructions - The documentation provides removal instructions - Add Casper Glow integration documentation home-assistant.io#43793
• entity-event-setup - Entity events are subscribed in the correct lifecycle methods - callbacks registered via async_on_remove in async_added_to_hass in light.py#L60-L65
• entity-unique-id - Entities have a unique ID - light.py#L57 (MAC address)
• has-entity-name - Entities use has_entity_name = True - _attr_has_entity_name = True, light uses _attr_name = None
• runtime-data - Use ConfigEntry.runtime_data to store runtime data - type CasperGlowConfigEntry = ConfigEntry[CasperGlowData], set at init.py#L59
• test-before-configure - Test a connection in the config flow - await glow.handshake(), tested in test_config_flow.py#L114
• test-before-setup - Check during integration initialization if we are able to set it up correctly - ConfigEntryNotReady if BLE device not found, tested in test_init.py#L43
• unique-config-entry - Don't allow the same device or service to be able to be set up twice - _abort_if_unique_id_configured(), tested in test_config_flow.py#L226

[Copilot]

Pull request overview

Adds a new Home Assistant integration (casper_glow) to control Casper Glow Bluetooth lights, including a config flow, coordinator-based state handling, services, and full test coverage.

Changes:

• Introduces the casper_glow integration (manifest, config flow, coordinator, entity + light platform, services, strings/icons, quality scale).
• Adds comprehensive tests for config flow, setup/unload, coordinator polling/logging, light behavior, and snapshots.
• Updates generated registries and dependency/type-checking configuration (requirements, mypy, strict-typing, generated bluetooth/config flow lists, CODEOWNERS).

Reviewed changes

Copilot reviewed 25 out of 28 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
homeassistant/components/casper_glow/__init__.py	Integration setup/unload, BLE device lookup, coordinator startup, service registration, device removal hook
homeassistant/components/casper_glow/config_flow.py	Bluetooth + user config flow for selecting and handshaking with a discovered device
homeassistant/components/casper_glow/const.py	Domain constants, brightness mapping, polling interval, service names
homeassistant/components/casper_glow/coordinator.py	Active Bluetooth coordinator for polling state + tracking BLE device updates
homeassistant/components/casper_glow/entity.py	Shared entity base with device info and command error handling/logging
homeassistant/components/casper_glow/light.py	Light entity implementation (on/off, brightness mapping, pause/resume)
homeassistant/components/casper_glow/manifest.json	Declares the integration, BLE matching, dependency, requirements, quality scale
homeassistant/components/casper_glow/models.py	Runtime-data model (CasperGlowData) and typed config entry alias
homeassistant/components/casper_glow/quality_scale.yaml	Quality scale rule tracking for the integration
homeassistant/components/casper_glow/services.yaml	Service target definitions for pause/resume
homeassistant/components/casper_glow/strings.json	User-facing strings for config flow, exceptions, and services
homeassistant/components/casper_glow/icons.json	Service icons for pause/resume
homeassistant/components/casper_glow/translations/en.json	Adds English translations file for the integration
tests/components/casper_glow/__init__.py	Test helpers + BLE discovery fixtures and integration setup helper
tests/components/casper_glow/conftest.py	Casper Glow test fixtures (config entry + integration setup)
tests/components/casper_glow/test_config_flow.py	Config flow test coverage (bluetooth/user flows, errors, aborts)
tests/components/casper_glow/test_coordinator.py	Coordinator polling + availability logging behavior tests
tests/components/casper_glow/test_init.py	Setup/unload/remove-device tests + BLE callback forwarding tests
tests/components/casper_glow/test_light.py	Light entity behavior tests (state updates, brightness mapping, services, logging)
tests/components/casper_glow/snapshots/test_light.ambr	Snapshot for light entity registry/state
homeassistant/generated/bluetooth.py	Registers Casper Glow BLE service UUID matcher (generated)
homeassistant/generated/config_flows.py	Adds casper_glow to generated config flow list
homeassistant/generated/integrations.json	Adds integration metadata (generated)
requirements_all.txt	Adds pycasperglow==1.0.1 to runtime requirements
requirements_test_all.txt	Adds pycasperglow==1.0.1 to test requirements
mypy.ini	Enables strict mypy rules for homeassistant.components.casper_glow.*
.strict-typing	Adds homeassistant.components.casper_glow.* to strict typing allowlist
CODEOWNERS	Adds codeownership for Casper Glow integration and its tests