feat: HA light output targets — cast LED colors to Home Assistant lights

New output target type `ha_light` that sends averaged LED colors to HA
light entities via WebSocket service calls (light.turn_on/turn_off):

Backend:
- HARuntime.call_service(): fire-and-forget WS service calls
- HALightOutputTarget: data model with light mappings, update rate, transition
- HALightTargetProcessor: processing loop with delta detection, rate limiting
- ProcessorManager.add_ha_light_target(): registration
- API schemas/routes updated for ha_light target type

Frontend:
- HA Light Targets section in Targets tab tree nav
- Modal editor: HA source picker, CSS source picker, light entity mappings
- Target cards with start/stop/clone/edit actions
- i18n keys for all new UI strings

server/src/wled_controller/api/routes/output_targets.py

@@ -25,6 +25,11 @@ from wled_controller.storage.key_colors_output_target import (
     KeyColorsSettings,
     KeyColorsOutputTarget,
 )
+from wled_controller.storage.ha_light_output_target import (
+    HALightMapping,
+    HALightOutputTarget,
+)
+from wled_controller.api.schemas.output_targets import HALightMappingSchema
 from wled_controller.storage.output_target_store import OutputTargetStore
 from wled_controller.utils import get_logger
 from wled_controller.storage.base_store import EntityNotFoundError
@@ -76,7 +81,6 @@ def _target_to_response(target) -> OutputTargetResponse:
             protocol=target.protocol,
             description=target.description,
             tags=target.tags,
-
             created_at=target.created_at,
             updated_at=target.updated_at,
         )
@@ -89,7 +93,31 @@ def _target_to_response(target) -> OutputTargetResponse:
             key_colors_settings=_kc_settings_to_schema(target.settings),
             description=target.description,
             tags=target.tags,
-
+            created_at=target.created_at,
+            updated_at=target.updated_at,
+        )
+    elif isinstance(target, HALightOutputTarget):
+        return OutputTargetResponse(
+            id=target.id,
+            name=target.name,
+            target_type=target.target_type,
+            ha_source_id=target.ha_source_id,
+            color_strip_source_id=target.color_strip_source_id,
+            ha_light_mappings=[
+                HALightMappingSchema(
+                    entity_id=m.entity_id,
+                    led_start=m.led_start,
+                    led_end=m.led_end,
+                    brightness_scale=m.brightness_scale,
+                )
+                for m in target.light_mappings
+            ],
+            update_rate=target.update_rate,
+            ha_transition=target.transition,
+            color_tolerance=target.color_tolerance,
+            min_brightness_threshold=target.min_brightness_threshold,
+            description=target.description,
+            tags=target.tags,
             created_at=target.created_at,
             updated_at=target.updated_at,
         )
@@ -100,7 +128,6 @@ def _target_to_response(target) -> OutputTargetResponse:
             target_type=target.target_type,
             description=target.description,
             tags=target.tags,
-
             created_at=target.created_at,
             updated_at=target.updated_at,
         )
@@ -108,7 +135,10 @@ def _target_to_response(target) -> OutputTargetResponse:
 
 # ===== CRUD ENDPOINTS =====
 
-@router.post("/api/v1/output-targets", response_model=OutputTargetResponse, tags=["Targets"], status_code=201)
+
+@router.post(
+    "/api/v1/output-targets", response_model=OutputTargetResponse, tags=["Targets"], status_code=201
+)
 async def create_target(
     data: OutputTargetCreate,
     _auth: AuthRequired,
@@ -125,7 +155,22 @@ async def create_target(
             except ValueError:
                 raise HTTPException(status_code=422, detail=f"Device {data.device_id} not found")
 
-        kc_settings = _kc_schema_to_settings(data.key_colors_settings) if data.key_colors_settings else None
+        kc_settings = (
+            _kc_schema_to_settings(data.key_colors_settings) if data.key_colors_settings else None
+        )
+        ha_mappings = (
+            [
+                HALightMapping(
+                    entity_id=m.entity_id,
+                    led_start=m.led_start,
+                    led_end=m.led_end,
+                    brightness_scale=m.brightness_scale,
+                )
+                for m in data.ha_light_mappings
+            ]
+            if data.ha_light_mappings
+            else None
+        )
 
         # Create in store
         target = target_store.create_target(
@@ -144,6 +189,11 @@ async def create_target(
             key_colors_settings=kc_settings,
             description=data.description,
             tags=data.tags,
+            ha_source_id=data.ha_source_id,
+            ha_light_mappings=ha_mappings,
+            update_rate=data.update_rate,
+            transition=data.transition,
+            color_tolerance=data.color_tolerance,
         )
 
         # Register in processor manager
@@ -196,7 +246,9 @@ async def batch_target_metrics(
     return {"metrics": manager.get_all_target_metrics()}
 
 
-@router.get("/api/v1/output-targets/{target_id}", response_model=OutputTargetResponse, tags=["Targets"])
+@router.get(
+    "/api/v1/output-targets/{target_id}", response_model=OutputTargetResponse, tags=["Targets"]
+)
 async def get_target(
     target_id: str,
     _auth: AuthRequired,
@@ -210,7 +262,9 @@ async def get_target(
         raise HTTPException(status_code=404, detail=str(e))
 
 
-@router.put("/api/v1/output-targets/{target_id}", response_model=OutputTargetResponse, tags=["Targets"])
+@router.put(
+    "/api/v1/output-targets/{target_id}", response_model=OutputTargetResponse, tags=["Targets"]
+)
 async def update_target(
     target_id: str,
     data: OutputTargetUpdate,
@@ -246,7 +300,9 @@ async def update_target(
                     smoothing=incoming.get("smoothing", ex.smoothing),
                     pattern_template_id=incoming.get("pattern_template_id", ex.pattern_template_id),
                     brightness=incoming.get("brightness", ex.brightness),
-                    brightness_value_source_id=incoming.get("brightness_value_source_id", ex.brightness_value_source_id),
+                    brightness_value_source_id=incoming.get(
+                        "brightness_value_source_id", ex.brightness_value_source_id
+                    ),
                 )
                 kc_settings = _kc_schema_to_settings(merged)
             else:
@@ -282,14 +338,18 @@ async def update_target(
             await asyncio.to_thread(
                 target.sync_with_manager,
                 manager,
-                settings_changed=(data.fps is not None or
+                settings_changed=(
-                                  data.keepalive_interval is not None or
+                    data.fps is not None
-                                  data.state_check_interval is not None or
+                    or data.keepalive_interval is not None
-                                  data.min_brightness_threshold is not None or
+                    or data.state_check_interval is not None
-                                  data.adaptive_fps is not None or
+                    or data.min_brightness_threshold is not None
-                                  data.key_colors_settings is not None),
+                    or data.adaptive_fps is not None
+                    or data.key_colors_settings is not None
+                ),
                 css_changed=data.color_strip_source_id is not None,
-                brightness_vs_changed=(data.brightness_value_source_id is not None or kc_brightness_vs_changed),
+                brightness_vs_changed=(
+                    data.brightness_value_source_id is not None or kc_brightness_vs_changed
+                ),
             )
         except ValueError as e:
             logger.debug("Processor config update skipped for target %s: %s", target_id, e)

server/src/wled_controller/api/routes/system.py

@@ -10,6 +10,8 @@ import sys
 from datetime import datetime, timezone
 from typing import Optional
 
+import os
+
 import psutil
 from fastapi import APIRouter, Depends, HTTPException, Query
 
@@ -52,8 +54,10 @@ from wled_controller.api.routes.system_settings import load_external_url  # noqa
 
 logger = get_logger(__name__)
 
-# Prime psutil CPU counter (first call always returns 0.0)
+# Prime psutil CPU counters (first call always returns 0.0)
 psutil.cpu_percent(interval=None)
+_process = psutil.Process(os.getpid())
+_process.cpu_percent(interval=None)  # prime process-level counter
 
 # GPU monitoring (initialized once in utils.gpu, shared with metrics_history)
 from wled_controller.utils.gpu import (  # noqa: E402
@@ -264,18 +268,36 @@ def get_system_performance(_: AuthRequired):
     """
     mem = psutil.virtual_memory()
 
+    # App-level metrics
+    proc_mem = _process.memory_info()
+    app_cpu = _process.cpu_percent(interval=None)
+    app_ram_mb = round(proc_mem.rss / 1024 / 1024, 1)
+
     gpu = None
     if _nvml_available:
         try:
             util = _nvml.nvmlDeviceGetUtilizationRates(_nvml_handle)
             mem_info = _nvml.nvmlDeviceGetMemoryInfo(_nvml_handle)
             temp = _nvml.nvmlDeviceGetTemperature(_nvml_handle, _nvml.NVML_TEMPERATURE_GPU)
+
+            # App GPU memory: sum memory used by this process on the GPU
+            app_gpu_mem: float | None = None
+            try:
+                pid = os.getpid()
+                for proc_info in _nvml.nvmlDeviceGetComputeRunningProcesses(_nvml_handle):
+                    if proc_info.pid == pid and proc_info.usedGpuMemory:
+                        app_gpu_mem = round(proc_info.usedGpuMemory / 1024 / 1024, 1)
+                        break
+            except Exception:
+                pass  # not all drivers support per-process queries
+
             gpu = GpuInfo(
                 name=_nvml.nvmlDeviceGetName(_nvml_handle),
                 utilization=float(util.gpu),
                 memory_used_mb=round(mem_info.used / 1024 / 1024, 1),
                 memory_total_mb=round(mem_info.total / 1024 / 1024, 1),
                 temperature_c=float(temp),
+                app_memory_mb=app_gpu_mem,
             )
         except Exception as e:
             logger.debug("NVML query failed: %s", e)
@@ -286,6 +308,8 @@ def get_system_performance(_: AuthRequired):
         ram_used_mb=round(mem.used / 1024 / 1024, 1),
         ram_total_mb=round(mem.total / 1024 / 1024, 1),
         ram_percent=mem.percent,
+        app_cpu_percent=app_cpu,
+        app_ram_mb=app_ram_mb,
         gpu=gpu,
         timestamp=datetime.now(timezone.utc),
     )

server/src/wled_controller/api/schemas/output_targets.py

@@ -22,10 +22,18 @@ class KeyColorsSettingsSchema(BaseModel):
     """Settings for key colors extraction."""
 
     fps: int = Field(default=10, description="Extraction rate (1-60)", ge=1, le=60)
-    interpolation_mode: str = Field(default="average", description="Color mode (average, median, dominant)")
+    interpolation_mode: str = Field(
-    smoothing: float = Field(default=0.3, description="Temporal smoothing (0.0-1.0)", ge=0.0, le=1.0)
+        default="average", description="Color mode (average, median, dominant)"
-    pattern_template_id: str = Field(default="", description="Pattern template ID for rectangle layout")
+    )
-    brightness: float = Field(default=1.0, description="Output brightness (0.0-1.0)", ge=0.0, le=1.0)
+    smoothing: float = Field(
+        default=0.3, description="Temporal smoothing (0.0-1.0)", ge=0.0, le=1.0
+    )
+    pattern_template_id: str = Field(
+        default="", description="Pattern template ID for rectangle layout"
+    )
+    brightness: float = Field(
+        default=1.0, description="Output brightness (0.0-1.0)", ge=0.0, le=1.0
+    )
     brightness_value_source_id: str = Field(default="", description="Brightness value source ID")
 
 
@@ -46,24 +54,79 @@ class KeyColorsResponse(BaseModel):
     timestamp: Optional[datetime] = Field(None, description="Extraction timestamp")
 
 
+class HALightMappingSchema(BaseModel):
+    """Maps an LED range to one HA light entity."""
+
+    entity_id: str = Field(description="HA light entity ID (e.g. 'light.living_room')")
+    led_start: int = Field(default=0, ge=0, description="Start LED index (0-based)")
+    led_end: int = Field(default=-1, description="End LED index (-1 = last)")
+    brightness_scale: float = Field(
+        default=1.0, ge=0.0, le=1.0, description="Brightness multiplier"
+    )
+
+
 class OutputTargetCreate(BaseModel):
     """Request to create an output target."""
 
     name: str = Field(description="Target name", min_length=1, max_length=100)
-    target_type: str = Field(default="led", description="Target type (led, key_colors)")
+    target_type: str = Field(default="led", description="Target type (led, key_colors, ha_light)")
     # LED target fields
     device_id: str = Field(default="", description="LED device ID")
     color_strip_source_id: str = Field(default="", description="Color strip source ID")
     brightness_value_source_id: str = Field(default="", description="Brightness value source ID")
     fps: int = Field(default=30, ge=1, le=90, description="Target send FPS (1-90)")
-    keepalive_interval: float = Field(default=1.0, description="Keepalive send interval when screen is static (0.5-5.0s)", ge=0.5, le=5.0)
+    keepalive_interval: float = Field(
-    state_check_interval: int = Field(default=DEFAULT_STATE_CHECK_INTERVAL, description="Device health check interval (5-600s)", ge=5, le=600)
+        default=1.0,
-    min_brightness_threshold: int = Field(default=0, ge=0, le=254, description="Min brightness threshold (0=disabled); below this → off")
+        description="Keepalive send interval when screen is static (0.5-5.0s)",
-    adaptive_fps: bool = Field(default=False, description="Auto-reduce FPS when device is unresponsive")
+        ge=0.5,
-    protocol: str = Field(default="ddp", pattern="^(ddp|http)$", description="Send protocol: ddp (UDP) or http (JSON API)")
+        le=5.0,
+    )
+    state_check_interval: int = Field(
+        default=DEFAULT_STATE_CHECK_INTERVAL,
+        description="Device health check interval (5-600s)",
+        ge=5,
+        le=600,
+    )
+    min_brightness_threshold: int = Field(
+        default=0,
+        ge=0,
+        le=254,
+        description="Min brightness threshold (0=disabled); below this → off",
+    )
+    adaptive_fps: bool = Field(
+        default=False, description="Auto-reduce FPS when device is unresponsive"
+    )
+    protocol: str = Field(
+        default="ddp",
+        pattern="^(ddp|http)$",
+        description="Send protocol: ddp (UDP) or http (JSON API)",
+    )
     # KC target fields
-    picture_source_id: str = Field(default="", description="Picture source ID (for key_colors targets)")
+    picture_source_id: str = Field(
-    key_colors_settings: Optional[KeyColorsSettingsSchema] = Field(None, description="Key colors settings (for key_colors targets)")
+        default="", description="Picture source ID (for key_colors targets)"
+    )
+    key_colors_settings: Optional[KeyColorsSettingsSchema] = Field(
+        None, description="Key colors settings (for key_colors targets)"
+    )
+    # HA light target fields
+    ha_source_id: str = Field(
+        default="", description="Home Assistant source ID (for ha_light targets)"
+    )
+    ha_light_mappings: Optional[List[HALightMappingSchema]] = Field(
+        None, description="LED-to-light mappings (for ha_light targets)"
+    )
+    update_rate: float = Field(
+        default=2.0, ge=0.5, le=5.0, description="Service call rate in Hz (for ha_light targets)"
+    )
+    transition: float = Field(
+        default=0.5, ge=0.0, le=10.0, description="HA transition seconds (for ha_light targets)"
+    )
+    color_tolerance: int = Field(
+        default=5,
+        ge=0,
+        le=50,
+        description="Skip service call if RGB delta < this (for ha_light targets)",
+    )
     description: Optional[str] = Field(None, description="Optional description", max_length=500)
     tags: List[str] = Field(default_factory=list, description="User-defined tags")
 
@@ -75,16 +138,48 @@ class OutputTargetUpdate(BaseModel):
     # LED target fields
     device_id: Optional[str] = Field(None, description="LED device ID")
     color_strip_source_id: Optional[str] = Field(None, description="Color strip source ID")
-    brightness_value_source_id: Optional[str] = Field(None, description="Brightness value source ID")
+    brightness_value_source_id: Optional[str] = Field(
+        None, description="Brightness value source ID"
+    )
     fps: Optional[int] = Field(None, ge=1, le=90, description="Target send FPS (1-90)")
-    keepalive_interval: Optional[float] = Field(None, description="Keepalive interval (0.5-5.0s)", ge=0.5, le=5.0)
+    keepalive_interval: Optional[float] = Field(
-    state_check_interval: Optional[int] = Field(None, description="Health check interval (5-600s)", ge=5, le=600)
+        None, description="Keepalive interval (0.5-5.0s)", ge=0.5, le=5.0
-    min_brightness_threshold: Optional[int] = Field(None, ge=0, le=254, description="Min brightness threshold (0=disabled); below this → off")
+    )
-    adaptive_fps: Optional[bool] = Field(None, description="Auto-reduce FPS when device is unresponsive")
+    state_check_interval: Optional[int] = Field(
-    protocol: Optional[str] = Field(None, pattern="^(ddp|http)$", description="Send protocol: ddp (UDP) or http (JSON API)")
+        None, description="Health check interval (5-600s)", ge=5, le=600
+    )
+    min_brightness_threshold: Optional[int] = Field(
+        None, ge=0, le=254, description="Min brightness threshold (0=disabled); below this → off"
+    )
+    adaptive_fps: Optional[bool] = Field(
+        None, description="Auto-reduce FPS when device is unresponsive"
+    )
+    protocol: Optional[str] = Field(
+        None, pattern="^(ddp|http)$", description="Send protocol: ddp (UDP) or http (JSON API)"
+    )
     # KC target fields
-    picture_source_id: Optional[str] = Field(None, description="Picture source ID (for key_colors targets)")
+    picture_source_id: Optional[str] = Field(
-    key_colors_settings: Optional[KeyColorsSettingsSchema] = Field(None, description="Key colors settings (for key_colors targets)")
+        None, description="Picture source ID (for key_colors targets)"
+    )
+    key_colors_settings: Optional[KeyColorsSettingsSchema] = Field(
+        None, description="Key colors settings (for key_colors targets)"
+    )
+    # HA light target fields
+    ha_source_id: Optional[str] = Field(
+        None, description="Home Assistant source ID (for ha_light targets)"
+    )
+    ha_light_mappings: Optional[List[HALightMappingSchema]] = Field(
+        None, description="LED-to-light mappings (for ha_light targets)"
+    )
+    update_rate: Optional[float] = Field(
+        None, ge=0.5, le=5.0, description="Service call rate Hz (for ha_light targets)"
+    )
+    transition: Optional[float] = Field(
+        None, ge=0.0, le=10.0, description="HA transition seconds (for ha_light targets)"
+    )
+    color_tolerance: Optional[int] = Field(
+        None, ge=0, le=50, description="RGB delta tolerance (for ha_light targets)"
+    )
     description: Optional[str] = Field(None, description="Optional description", max_length=500)
     tags: Optional[List[str]] = None
 
@@ -101,13 +196,29 @@ class OutputTargetResponse(BaseModel):
     brightness_value_source_id: str = Field(default="", description="Brightness value source ID")
     fps: Optional[int] = Field(None, description="Target send FPS")
     keepalive_interval: float = Field(default=1.0, description="Keepalive interval (s)")
-    state_check_interval: int = Field(default=DEFAULT_STATE_CHECK_INTERVAL, description="Health check interval (s)")
+    state_check_interval: int = Field(
-    min_brightness_threshold: int = Field(default=0, description="Min brightness threshold (0=disabled)")
+        default=DEFAULT_STATE_CHECK_INTERVAL, description="Health check interval (s)"
-    adaptive_fps: bool = Field(default=False, description="Auto-reduce FPS when device is unresponsive")
+    )
+    min_brightness_threshold: int = Field(
+        default=0, description="Min brightness threshold (0=disabled)"
+    )
+    adaptive_fps: bool = Field(
+        default=False, description="Auto-reduce FPS when device is unresponsive"
+    )
     protocol: str = Field(default="ddp", description="Send protocol (ddp or http)")
     # KC target fields
     picture_source_id: str = Field(default="", description="Picture source ID (key_colors)")
-    key_colors_settings: Optional[KeyColorsSettingsSchema] = Field(None, description="Key colors settings")
+    key_colors_settings: Optional[KeyColorsSettingsSchema] = Field(
+        None, description="Key colors settings"
+    )
+    # HA light target fields
+    ha_source_id: str = Field(default="", description="Home Assistant source ID (ha_light)")
+    ha_light_mappings: Optional[List[HALightMappingSchema]] = Field(
+        None, description="LED-to-light mappings (ha_light)"
+    )
+    update_rate: Optional[float] = Field(None, description="Service call rate Hz (ha_light)")
+    ha_transition: Optional[float] = Field(None, description="HA transition seconds (ha_light)")
+    color_tolerance: Optional[int] = Field(None, description="RGB delta tolerance (ha_light)")
     description: Optional[str] = Field(None, description="Description")
     tags: List[str] = Field(default_factory=list, description="User-defined tags")
     created_at: datetime = Field(description="Creation timestamp")
@@ -129,23 +240,39 @@ class TargetProcessingState(BaseModel):
     color_strip_source_id: str = Field(default="", description="Color strip source ID")
     processing: bool = Field(description="Whether processing is active")
     fps_actual: Optional[float] = Field(None, description="Actual FPS achieved")
-    fps_potential: Optional[float] = Field(None, description="Potential FPS (processing speed without throttle)")
+    fps_potential: Optional[float] = Field(
+        None, description="Potential FPS (processing speed without throttle)"
+    )
     fps_target: Optional[int] = Field(None, description="Target FPS")
     frames_skipped: Optional[int] = Field(None, description="Frames skipped (no screen change)")
-    frames_keepalive: Optional[int] = Field(None, description="Keepalive frames sent during standby")
+    frames_keepalive: Optional[int] = Field(
+        None, description="Keepalive frames sent during standby"
+    )
     fps_current: Optional[int] = Field(None, description="Frames sent in the last second")
     timing_send_ms: Optional[float] = Field(None, description="DDP send time (ms)")
-    timing_extract_ms: Optional[float] = Field(None, description="Border pixel extraction time (ms)")
+    timing_extract_ms: Optional[float] = Field(
+        None, description="Border pixel extraction time (ms)"
+    )
     timing_map_leds_ms: Optional[float] = Field(None, description="LED color mapping time (ms)")
     timing_smooth_ms: Optional[float] = Field(None, description="Temporal smoothing time (ms)")
-    timing_total_ms: Optional[float] = Field(None, description="Total processing time per frame (ms)")
+    timing_total_ms: Optional[float] = Field(
+        None, description="Total processing time per frame (ms)"
+    )
     timing_audio_read_ms: Optional[float] = Field(None, description="Audio device read time (ms)")
     timing_audio_fft_ms: Optional[float] = Field(None, description="Audio FFT analysis time (ms)")
-    timing_audio_render_ms: Optional[float] = Field(None, description="Audio visualization render time (ms)")
+    timing_audio_render_ms: Optional[float] = Field(
-    timing_calc_colors_ms: Optional[float] = Field(None, description="Color calculation time (ms, KC targets)")
+        None, description="Audio visualization render time (ms)"
-    timing_broadcast_ms: Optional[float] = Field(None, description="WebSocket broadcast time (ms, KC targets)")
+    )
+    timing_calc_colors_ms: Optional[float] = Field(
+        None, description="Color calculation time (ms, KC targets)"
+    )
+    timing_broadcast_ms: Optional[float] = Field(
+        None, description="WebSocket broadcast time (ms, KC targets)"
+    )
     display_index: Optional[int] = Field(None, description="Current display index")
-    overlay_active: bool = Field(default=False, description="Whether visualization overlay is active")
+    overlay_active: bool = Field(
+        default=False, description="Whether visualization overlay is active"
+    )
     last_update: Optional[datetime] = Field(None, description="Last successful update")
     errors: List[str] = Field(default_factory=list, description="Recent errors")
     device_online: bool = Field(default=False, description="Whether device is reachable")
@@ -154,11 +281,17 @@ class TargetProcessingState(BaseModel):
     device_version: Optional[str] = Field(None, description="Firmware version")
     device_led_count: Optional[int] = Field(None, description="LED count reported by device")
     device_rgbw: Optional[bool] = Field(None, description="Whether device uses RGBW LEDs")
-    device_led_type: Optional[str] = Field(None, description="LED chip type (e.g. WS2812B, SK6812 RGBW)")
+    device_led_type: Optional[str] = Field(
-    device_fps: Optional[int] = Field(None, description="Device-reported FPS (WLED internal refresh rate)")
+        None, description="LED chip type (e.g. WS2812B, SK6812 RGBW)"
+    )
+    device_fps: Optional[int] = Field(
+        None, description="Device-reported FPS (WLED internal refresh rate)"
+    )
     device_last_checked: Optional[datetime] = Field(None, description="Last health check time")
     device_error: Optional[str] = Field(None, description="Last health check error")
-    device_streaming_reachable: Optional[bool] = Field(None, description="Device reachable during streaming (HTTP probe)")
+    device_streaming_reachable: Optional[bool] = Field(
+        None, description="Device reachable during streaming (HTTP probe)"
+    )
     fps_effective: Optional[int] = Field(None, description="Effective FPS after adaptive reduction")
 
 
@@ -186,9 +319,15 @@ class BulkTargetRequest(BaseModel):
 class BulkTargetResponse(BaseModel):
     """Response for bulk start/stop operations."""
 
-    started: List[str] = Field(default_factory=list, description="IDs that were successfully started")
+    started: List[str] = Field(
-    stopped: List[str] = Field(default_factory=list, description="IDs that were successfully stopped")
+        default_factory=list, description="IDs that were successfully started"
-    errors: Dict[str, str] = Field(default_factory=dict, description="Map of target ID to error message for failures")
+    )
+    stopped: List[str] = Field(
+        default_factory=list, description="IDs that were successfully stopped"
+    )
+    errors: Dict[str, str] = Field(
+        default_factory=dict, description="Map of target ID to error message for failures"
+    )
 
 
 class KCTestRectangleResponse(BaseModel):
@@ -206,6 +345,8 @@ class KCTestResponse(BaseModel):
     """Response from testing a KC target."""
 
     image: str = Field(description="Base64 data URI of the captured frame")
-    rectangles: List[KCTestRectangleResponse] = Field(description="Rectangles with extracted colors")
+    rectangles: List[KCTestRectangleResponse] = Field(
+        description="Rectangles with extracted colors"
+    )
     interpolation_mode: str = Field(description="Color extraction mode used")
     pattern_template_name: str = Field(description="Pattern template name")

server/src/wled_controller/api/schemas/system.py

@@ -64,6 +64,9 @@ class GpuInfo(BaseModel):
     memory_used_mb: float | None = Field(default=None, description="GPU memory used in MB")
     memory_total_mb: float | None = Field(default=None, description="GPU total memory in MB")
     temperature_c: float | None = Field(default=None, description="GPU temperature in Celsius")
+    app_memory_mb: float | None = Field(
+        default=None, description="GPU memory used by this app in MB"
+    )
 
 
 class PerformanceResponse(BaseModel):
@@ -74,6 +77,8 @@ class PerformanceResponse(BaseModel):
     ram_used_mb: float = Field(description="RAM used in MB")
     ram_total_mb: float = Field(description="RAM total in MB")
     ram_percent: float = Field(description="RAM usage percent")
+    app_cpu_percent: float = Field(description="App process CPU usage percent")
+    app_ram_mb: float = Field(description="App process resident memory in MB")
     gpu: GpuInfo | None = Field(default=None, description="GPU info (null if unavailable)")
     timestamp: datetime = Field(description="Measurement timestamp")
 

server/src/wled_controller/core/home_assistant/ha_manager.py

@@ -87,6 +87,16 @@ class HomeAssistantManager:
                 runtime, _count = self._runtimes[source_id]
         return runtime
 
+    async def call_service(
+        self, source_id: str, domain: str, service: str, service_data: dict, target: dict
+    ) -> bool:
+        """Call a HA service via the runtime for the given source. Returns success."""
+        entry = self._runtimes.get(source_id)
+        if entry is None:
+            return False
+        runtime, _count = entry
+        return await runtime.call_service(domain, service, service_data, target)
+
     async def update_source(self, source_id: str) -> None:
         """Hot-update runtime config when the source is edited."""
         entry = self._runtimes.get(source_id)

server/src/wled_controller/core/home_assistant/ha_runtime.py

@@ -54,6 +54,7 @@ class HARuntime:
 
         # Async task management
         self._task: Optional[asyncio.Task] = None
+        self._ws: Any = None  # live websocket connection (set during _connection_loop)
         self._connected = False
         self._msg_id = 0
 
@@ -88,6 +89,34 @@ class HARuntime:
             if not self._callbacks[entity_id]:
                 del self._callbacks[entity_id]
 
+    async def call_service(
+        self, domain: str, service: str, service_data: dict, target: dict
+    ) -> bool:
+        """Call a HA service (e.g. light.turn_on). Fire-and-forget.
+
+        Returns True if the message was sent, False if not connected.
+        """
+        if not self._connected or self._ws is None:
+            return False
+        try:
+            msg_id = self._next_id()
+            await self._ws.send(
+                json.dumps(
+                    {
+                        "id": msg_id,
+                        "type": "call_service",
+                        "domain": domain,
+                        "service": service,
+                        "service_data": service_data,
+                        "target": target,
+                    }
+                )
+            )
+            return True
+        except Exception as e:
+            logger.debug(f"HA call_service failed ({domain}.{service}): {e}")
+            return False
+
     async def start(self) -> None:
         """Start the WebSocket connection loop."""
         if self._task is not None:
@@ -161,6 +190,7 @@ class HARuntime:
                         await asyncio.sleep(self._RECONNECT_DELAY)
                         continue
 
+                    self._ws = ws
                     self._connected = True
                     logger.info(
                         f"HA connected: {self._source_id} (version {msg.get('ha_version', '?')})"
@@ -204,8 +234,10 @@ class HARuntime:
                                 self._handle_state_changed(event.get("data", {}))
 
             except asyncio.CancelledError:
+                self._ws = None
                 break
             except Exception as e:
+                self._ws = None
                 self._connected = False
                 logger.warning(
                     f"HA connection lost ({self._source_id}): {e}. Reconnecting in {self._RECONNECT_DELAY}s..."

server/src/wled_controller/core/processing/ha_light_target_processor.py

@@ -0,0 +1,260 @@
+"""Home Assistant light target processor — casts LED colors to HA lights.
+
+Reads from a ColorStripStream, averages LED segments to single RGB values,
+and calls light.turn_on / light.turn_off via the HA WebSocket connection.
+Rate-limited to update_rate Hz (typically 1-5 Hz).
+"""
+
+import asyncio
+import time
+from typing import Dict, List, Optional, Tuple
+
+import numpy as np
+
+from wled_controller.core.processing.target_processor import TargetContext, TargetProcessor
+from wled_controller.storage.ha_light_output_target import HALightMapping
+from wled_controller.utils import get_logger
+
+logger = get_logger(__name__)
+
+
+class HALightTargetProcessor(TargetProcessor):
+    """Streams averaged LED colors to Home Assistant light entities."""
+
+    def __init__(
+        self,
+        target_id: str,
+        ha_source_id: str,
+        color_strip_source_id: str = "",
+        light_mappings: Optional[List[HALightMapping]] = None,
+        update_rate: float = 2.0,
+        transition: float = 0.5,
+        min_brightness_threshold: int = 0,
+        color_tolerance: int = 5,
+        ctx: Optional[TargetContext] = None,
+    ):
+        super().__init__(target_id, ctx)
+        self._ha_source_id = ha_source_id
+        self._css_id = color_strip_source_id
+        self._light_mappings = light_mappings or []
+        self._update_rate = max(0.5, min(5.0, update_rate))
+        self._transition = transition
+        self._min_brightness_threshold = min_brightness_threshold
+        self._color_tolerance = color_tolerance
+
+        # Runtime state
+        self._css_stream = None
+        self._ha_runtime = None
+        self._previous_colors: Dict[str, Tuple[int, int, int]] = {}
+        self._previous_on: Dict[str, bool] = {}  # track on/off state per entity
+        self._start_time: Optional[float] = None
+
+    @property
+    def device_id(self) -> Optional[str]:
+        return None  # HA light targets don't use device providers
+
+    async def start(self) -> None:
+        if self._is_running:
+            return
+
+        # Acquire CSS stream
+        if self._css_id and self._ctx.color_strip_stream_manager:
+            try:
+                self._css_stream = self._ctx.color_strip_stream_manager.acquire(
+                    self._css_id, self._target_id
+                )
+            except Exception as e:
+                logger.warning(f"HA light {self._target_id}: failed to acquire CSS stream: {e}")
+
+        # Acquire HA runtime
+        try:
+            from wled_controller.core.home_assistant.ha_manager import HomeAssistantManager
+
+            ha_manager: Optional[HomeAssistantManager] = getattr(self._ctx, "ha_manager", None)
+            if ha_manager:
+                self._ha_runtime = await ha_manager.acquire(self._ha_source_id)
+        except Exception as e:
+            logger.warning(f"HA light {self._target_id}: failed to acquire HA runtime: {e}")
+
+        self._is_running = True
+        self._start_time = time.monotonic()
+        self._task = asyncio.create_task(self._processing_loop())
+        logger.info(f"HA light target started: {self._target_id}")
+
+    async def stop(self) -> None:
+        self._is_running = False
+        if self._task:
+            self._task.cancel()
+            try:
+                await self._task
+            except asyncio.CancelledError:
+                pass
+            self._task = None
+
+        # Release CSS stream
+        if self._css_stream and self._ctx.color_strip_stream_manager:
+            try:
+                self._ctx.color_strip_stream_manager.release(self._css_id, self._target_id)
+            except Exception:
+                pass
+            self._css_stream = None
+
+        # Release HA runtime
+        if self._ha_runtime:
+            try:
+                ha_manager = getattr(self._ctx, "ha_manager", None)
+                if ha_manager:
+                    await ha_manager.release(self._ha_source_id)
+            except Exception:
+                pass
+            self._ha_runtime = None
+
+        self._previous_colors.clear()
+        self._previous_on.clear()
+        logger.info(f"HA light target stopped: {self._target_id}")
+
+    def update_settings(self, settings) -> None:
+        if isinstance(settings, dict):
+            if "update_rate" in settings:
+                self._update_rate = max(0.5, min(5.0, float(settings["update_rate"])))
+            if "transition" in settings:
+                self._transition = float(settings["transition"])
+            if "min_brightness_threshold" in settings:
+                self._min_brightness_threshold = int(settings["min_brightness_threshold"])
+            if "color_tolerance" in settings:
+                self._color_tolerance = int(settings["color_tolerance"])
+            if "light_mappings" in settings:
+                self._light_mappings = settings["light_mappings"]
+
+    def update_css_source(self, color_strip_source_id: str) -> None:
+        """Hot-swap the CSS stream."""
+        old_id = self._css_id
+        self._css_id = color_strip_source_id
+
+        if self._is_running and self._ctx.color_strip_stream_manager:
+            try:
+                new_stream = self._ctx.color_strip_stream_manager.acquire(
+                    color_strip_source_id, self._target_id
+                )
+                old_stream = self._css_stream
+                self._css_stream = new_stream
+                if old_stream:
+                    self._ctx.color_strip_stream_manager.release(old_id, self._target_id)
+            except Exception as e:
+                logger.warning(f"HA light {self._target_id}: CSS swap failed: {e}")
+
+    def get_state(self) -> dict:
+        return {
+            "target_id": self._target_id,
+            "ha_source_id": self._ha_source_id,
+            "css_id": self._css_id,
+            "is_running": self._is_running,
+            "ha_connected": self._ha_runtime.is_connected if self._ha_runtime else False,
+            "light_count": len(self._light_mappings),
+            "update_rate": self._update_rate,
+        }
+
+    def get_metrics(self) -> dict:
+        return {
+            "target_id": self._target_id,
+            "uptime": time.monotonic() - self._start_time if self._start_time else 0,
+            "update_rate": self._update_rate,
+        }
+
+    async def _processing_loop(self) -> None:
+        """Main loop: read CSS colors, average per mapping, send to HA lights."""
+        interval = 1.0 / self._update_rate
+
+        while self._is_running:
+            try:
+                loop_start = time.monotonic()
+
+                if self._css_stream and self._ha_runtime and self._ha_runtime.is_connected:
+                    colors = self._css_stream.get_latest_colors()
+                    if colors is not None and len(colors) > 0:
+                        await self._update_lights(colors)
+
+                # Sleep for remaining frame time
+                elapsed = time.monotonic() - loop_start
+                sleep_time = max(0.05, interval - elapsed)
+                await asyncio.sleep(sleep_time)
+
+            except asyncio.CancelledError:
+                break
+            except Exception as e:
+                logger.error(f"HA light {self._target_id} loop error: {e}")
+                await asyncio.sleep(1.0)
+
+    async def _update_lights(self, colors: np.ndarray) -> None:
+        """Average LED segments and call HA services for changed lights."""
+        led_count = len(colors)
+
+        for mapping in self._light_mappings:
+            if not mapping.entity_id:
+                continue
+
+            # Resolve LED range
+            start = max(0, mapping.led_start)
+            end = mapping.led_end if mapping.led_end >= 0 else led_count
+            end = min(end, led_count)
+            if start >= end:
+                continue
+
+            # Average the LED segment
+            segment = colors[start:end]
+            avg = segment.mean(axis=0).astype(int)
+            r, g, b = int(avg[0]), int(avg[1]), int(avg[2])
+
+            # Calculate brightness (0-255) from max channel
+            brightness = max(r, g, b)
+
+            # Apply brightness scale
+            if mapping.brightness_scale < 1.0:
+                brightness = int(brightness * mapping.brightness_scale)
+
+            # Check brightness threshold
+            should_be_on = (
+                brightness >= self._min_brightness_threshold or self._min_brightness_threshold == 0
+            )
+
+            entity_id = mapping.entity_id
+            prev_color = self._previous_colors.get(entity_id)
+            was_on = self._previous_on.get(entity_id, True)
+
+            if should_be_on:
+                # Check if color changed beyond tolerance
+                new_color = (r, g, b)
+                if prev_color is not None and was_on:
+                    dr = abs(r - prev_color[0])
+                    dg = abs(g - prev_color[1])
+                    db = abs(b - prev_color[2])
+                    if max(dr, dg, db) < self._color_tolerance:
+                        continue  # skip — color hasn't changed enough
+
+                # Call light.turn_on
+                service_data = {
+                    "rgb_color": [r, g, b],
+                    "brightness": min(255, int(brightness * mapping.brightness_scale)),
+                }
+                if self._transition > 0:
+                    service_data["transition"] = self._transition
+
+                await self._ha_runtime.call_service(
+                    domain="light",
+                    service="turn_on",
+                    service_data=service_data,
+                    target={"entity_id": entity_id},
+                )
+                self._previous_colors[entity_id] = new_color
+                self._previous_on[entity_id] = True
+
+            elif was_on:
+                # Brightness dropped below threshold — turn off
+                await self._ha_runtime.call_service(
+                    domain="light",
+                    service="turn_off",
+                    service_data={},
+                    target={"entity_id": entity_id},
+                )
+                self._previous_on[entity_id] = False
+                self._previous_colors.pop(entity_id, None)

server/src/wled_controller/core/processing/metrics_history.py

@@ -1,6 +1,7 @@
 """Server-side ring buffer for system and per-target metrics."""
 
 import asyncio
+import os
 from collections import deque
 from datetime import datetime, timezone
 from typing import Dict, Optional
@@ -8,7 +9,11 @@ from typing import Dict, Optional
 import psutil
 
 from wled_controller.utils import get_logger
-from wled_controller.utils.gpu import nvml_available as _nvml_available, nvml as _nvml, nvml_handle as _nvml_handle
+from wled_controller.utils.gpu import (
+    nvml_available as _nvml_available,
+    nvml as _nvml,
+    nvml_handle as _nvml_handle,
+)
 
 logger = get_logger(__name__)
 
@@ -16,20 +21,28 @@ MAX_SAMPLES = 120  # ~2 minutes at 1-second interval
 SAMPLE_INTERVAL = 1.0  # seconds
 
 
+_process = psutil.Process(os.getpid())
+_process.cpu_percent(interval=None)  # prime process-level counter
+
+
 def _collect_system_snapshot() -> dict:
     """Collect CPU/RAM/GPU metrics (blocking — run in thread pool).
 
     Returns a dict suitable for direct JSON serialization.
     """
     mem = psutil.virtual_memory()
+    proc_mem = _process.memory_info()
     snapshot = {
         "t": datetime.now(timezone.utc).isoformat(),
         "cpu": psutil.cpu_percent(interval=None),
         "ram_pct": mem.percent,
         "ram_used": round(mem.used / 1024 / 1024, 1),
         "ram_total": round(mem.total / 1024 / 1024, 1),
+        "app_cpu": _process.cpu_percent(interval=None),
+        "app_ram": round(proc_mem.rss / 1024 / 1024, 1),
         "gpu_util": None,
         "gpu_temp": None,
+        "app_gpu_mem": None,
     }
 
     try:
@@ -38,6 +51,14 @@ def _collect_system_snapshot() -> dict:
             temp = _nvml.nvmlDeviceGetTemperature(_nvml_handle, _nvml.NVML_TEMPERATURE_GPU)
             snapshot["gpu_util"] = float(util.gpu)
             snapshot["gpu_temp"] = float(temp)
+            try:
+                pid = os.getpid()
+                for proc_info in _nvml.nvmlDeviceGetComputeRunningProcesses(_nvml_handle):
+                    if proc_info.pid == pid and proc_info.usedGpuMemory:
+                        snapshot["app_gpu_mem"] = round(proc_info.usedGpuMemory / 1024 / 1024, 1)
+                        break
+            except Exception:
+                pass
     except Exception as e:
         logger.debug("GPU metrics collection failed: %s", e)
         pass
@@ -104,14 +125,16 @@ class MetricsHistory:
             if target_id not in self._targets:
                 self._targets[target_id] = deque(maxlen=MAX_SAMPLES)
             if state.get("processing"):
-                self._targets[target_id].append({
+                self._targets[target_id].append(
+                    {
                         "t": now,
                         "fps": state.get("fps_actual"),
                         "fps_current": state.get("fps_current"),
                         "fps_target": state.get("fps_target"),
                         "timing": state.get("timing_total_ms"),
                         "errors": state.get("errors_count", 0),
-                })
+                    }
+                )
 
         # Prune deques for targets no longer registered
         for tid in list(self._targets.keys()):

server/src/wled_controller/core/processing/processor_manager.py

@@ -3,7 +3,7 @@
 import asyncio
 import time
 from dataclasses import dataclass, field
-from typing import Dict, List, Optional, Tuple
+from typing import Any, Dict, List, Optional, Tuple
 
 import httpx
 
@@ -31,7 +31,9 @@ from wled_controller.core.processing.auto_restart import (
 from wled_controller.storage import DeviceStore
 from wled_controller.storage.audio_source_store import AudioSourceStore
 from wled_controller.storage.audio_template_store import AudioTemplateStore
-from wled_controller.storage.color_strip_processing_template_store import ColorStripProcessingTemplateStore
+from wled_controller.storage.color_strip_processing_template_store import (
+    ColorStripProcessingTemplateStore,
+)
 from wled_controller.storage.color_strip_store import ColorStripStore
 from wled_controller.storage.gradient_store import GradientStore
 from wled_controller.storage.pattern_template_store import PatternTemplateStore
@@ -72,6 +74,7 @@ class ProcessorDependencies:
     gradient_store: Optional[GradientStore] = None
     weather_manager: Optional[WeatherManager] = None
     asset_store: Optional[AssetStore] = None
+    ha_manager: Optional[Any] = None  # HomeAssistantManager
 
 
 @dataclass
@@ -134,7 +137,9 @@ class ProcessorManager(AutoRestartMixin, DeviceHealthMixin, DeviceTestModeMixin)
         self._value_source_store = deps.value_source_store
         self._cspt_store = deps.cspt_store
         self._live_stream_manager = LiveStreamManager(
-            deps.picture_source_store, deps.capture_template_store, deps.pp_template_store,
+            deps.picture_source_store,
+            deps.capture_template_store,
+            deps.pp_template_store,
             asset_store=deps.asset_store,
         )
         self._audio_capture_manager = AudioCaptureManager()
@@ -151,15 +156,20 @@ class ProcessorManager(AutoRestartMixin, DeviceHealthMixin, DeviceTestModeMixin)
             weather_manager=deps.weather_manager,
             asset_store=deps.asset_store,
         )
-        self._value_stream_manager = ValueStreamManager(
+        self._value_stream_manager = (
+            ValueStreamManager(
                 value_source_store=deps.value_source_store,
                 audio_capture_manager=self._audio_capture_manager,
                 audio_source_store=deps.audio_source_store,
                 live_stream_manager=self._live_stream_manager,
                 audio_template_store=deps.audio_template_store,
-        ) if deps.value_source_store else None
+            )
+            if deps.value_source_store
+            else None
+        )
         # Wire value stream manager into CSS stream manager for composite layer brightness
         self._color_strip_stream_manager._value_stream_manager = self._value_stream_manager
+        self._ha_manager = deps.ha_manager
         self._overlay_manager = OverlayManager()
         self._event_queues: List[asyncio.Queue] = []
         self._metrics_history = MetricsHistory(self)
@@ -199,15 +209,24 @@ class ProcessorManager(AutoRestartMixin, DeviceHealthMixin, DeviceTestModeMixin)
             cspt_store=self._cspt_store,
             fire_event=self.fire_event,
             get_device_info=self._get_device_info,
+            ha_manager=self._ha_manager,
         )
 
     # Default values for device-specific fields read from persistent storage
     _DEVICE_FIELD_DEFAULTS = {
-        "send_latency_ms": 0, "rgbw": False, "dmx_protocol": "artnet",
+        "send_latency_ms": 0,
-        "dmx_start_universe": 0, "dmx_start_channel": 1, "espnow_peer_mac": "",
+        "rgbw": False,
-        "espnow_channel": 1, "hue_username": "", "hue_client_key": "",
+        "dmx_protocol": "artnet",
-        "hue_entertainment_group_id": "", "spi_speed_hz": 800000,
+        "dmx_start_universe": 0,
-        "spi_led_type": "WS2812B", "chroma_device_type": "chromalink",
+        "dmx_start_channel": 1,
+        "espnow_peer_mac": "",
+        "espnow_channel": 1,
+        "hue_username": "",
+        "hue_client_key": "",
+        "hue_entertainment_group_id": "",
+        "spi_speed_hz": 800000,
+        "spi_led_type": "WS2812B",
+        "chroma_device_type": "chromalink",
         "gamesense_device_type": "keyboard",
     }
 
@@ -228,11 +247,16 @@ class ProcessorManager(AutoRestartMixin, DeviceHealthMixin, DeviceTestModeMixin)
                 pass
 
         return DeviceInfo(
-            device_id=ds.device_id, device_url=ds.device_url,
+            device_id=ds.device_id,
-            led_count=ds.led_count, device_type=ds.device_type,
+            device_url=ds.device_url,
-            baud_rate=ds.baud_rate, software_brightness=ds.software_brightness,
+            led_count=ds.led_count,
-            test_mode_active=ds.test_mode_active, zone_mode=ds.zone_mode,
+            device_type=ds.device_type,
-            auto_shutdown=ds.auto_shutdown, **extras,
+            baud_rate=ds.baud_rate,
+            software_brightness=ds.software_brightness,
+            test_mode_active=ds.test_mode_active,
+            zone_mode=ds.zone_mode,
+            auto_shutdown=ds.auto_shutdown,
+            **extras,
         )
 
     # ===== EVENT SYSTEM (state change notifications) =====
@@ -314,7 +338,13 @@ class ProcessorManager(AutoRestartMixin, DeviceHealthMixin, DeviceTestModeMixin)
         del self._devices[device_id]
         logger.info(f"Unregistered device {device_id}")
 
-    def update_device_info(self, device_id: str, device_url: Optional[str] = None, led_count: Optional[int] = None, baud_rate: Optional[int] = None):
+    def update_device_info(
+        self,
+        device_id: str,
+        device_url: Optional[str] = None,
+        led_count: Optional[int] = None,
+        baud_rate: Optional[int] = None,
+    ):
         """Update device connection info."""
         if device_id not in self._devices:
             raise ValueError(f"Device {device_id} not found")
@@ -440,6 +470,37 @@ class ProcessorManager(AutoRestartMixin, DeviceHealthMixin, DeviceTestModeMixin)
         self._processors[target_id] = proc
         logger.info(f"Registered KC target: {target_id}")
 
+    def add_ha_light_target(
+        self,
+        target_id: str,
+        ha_source_id: str,
+        color_strip_source_id: str = "",
+        light_mappings=None,
+        update_rate: float = 2.0,
+        transition: float = 0.5,
+        min_brightness_threshold: int = 0,
+        color_tolerance: int = 5,
+    ) -> None:
+        """Register a Home Assistant light target processor."""
+        if target_id in self._processors:
+            raise ValueError(f"HA light target {target_id} already registered")
+
+        from wled_controller.core.processing.ha_light_target_processor import HALightTargetProcessor
+
+        proc = HALightTargetProcessor(
+            target_id=target_id,
+            ha_source_id=ha_source_id,
+            color_strip_source_id=color_strip_source_id,
+            light_mappings=light_mappings or [],
+            update_rate=update_rate,
+            transition=transition,
+            min_brightness_threshold=min_brightness_threshold,
+            color_tolerance=color_tolerance,
+            ctx=self._build_context(),
+        )
+        self._processors[target_id] = proc
+        logger.info(f"Registered HA light target: {target_id}")
+
     def remove_target(self, target_id: str):
         """Unregister a target (any type)."""
         if target_id not in self._processors:
@@ -499,7 +560,8 @@ class ProcessorManager(AutoRestartMixin, DeviceHealthMixin, DeviceTestModeMixin)
             await self.start_processing(target_id)
             logger.info(
                 "Hot-switch complete for target %s -> device %s",
-                target_id, device_id,
+                target_id,
+                device_id,
             )
 
     def update_target_brightness_vs(self, target_id: str, vs_id: str):
@@ -520,11 +582,7 @@ class ProcessorManager(AutoRestartMixin, DeviceHealthMixin, DeviceTestModeMixin)
         # Enforce one-target-per-device for device-aware targets
         if proc.device_id is not None:
             for other_id, other in self._processors.items():
-                if (
+                if other_id != target_id and other.device_id == proc.device_id and other.is_running:
-                    other_id != target_id
-                    and other.device_id == proc.device_id
-                    and other.is_running
-                ):
                     # Stale state guard: if the task is actually finished,
                     # clean up and allow starting instead of blocking.
                     task = getattr(other, "_task", None)
@@ -543,7 +601,9 @@ class ProcessorManager(AutoRestartMixin, DeviceHealthMixin, DeviceTestModeMixin)
                             dev = self._device_store.get_device(proc.device_id)
                             dev_name = dev.name
                         except ValueError as e:
-                            logger.debug("Device %s not found for name lookup: %s", proc.device_id, e)
+                            logger.debug(
+                                "Device %s not found for name lookup: %s", proc.device_id, e
+                            )
                             pass
                     raise RuntimeError(
                         f"Device '{dev_name}' is already being processed by target {tgt_name}"
@@ -573,9 +633,7 @@ class ProcessorManager(AutoRestartMixin, DeviceHealthMixin, DeviceTestModeMixin)
 
         # Attach done callback to detect crashes
         if proc._task is not None:
-            proc._task.add_done_callback(
+            proc._task.add_done_callback(lambda task, tid=target_id: self._on_task_done(tid, task))
-                lambda task, tid=target_id: self._on_task_done(tid, task)
-            )
 
     async def stop_processing(self, target_id: str):
         """Stop processing for a target (any type).
@@ -617,7 +675,8 @@ class ProcessorManager(AutoRestartMixin, DeviceHealthMixin, DeviceTestModeMixin)
         # Merge device health for device-aware targets
         if proc.device_id is not None and proc.device_id in self._devices:
             h = self._devices[proc.device_id].health
-            state.update({
+            state.update(
+                {
                     "device_online": h.online,
                     "device_latency_ms": h.latency_ms,
                     "device_name": h.device_name,
@@ -628,7 +687,8 @@ class ProcessorManager(AutoRestartMixin, DeviceHealthMixin, DeviceTestModeMixin)
                     "device_fps": h.device_fps,
                     "device_last_checked": h.last_checked,
                     "device_error": h.error,
-            })
+                }
+            )
 
         return state
 
@@ -676,7 +736,9 @@ class ProcessorManager(AutoRestartMixin, DeviceHealthMixin, DeviceTestModeMixin)
         "left": [255, 255, 0],
     }
 
-    async def start_overlay(self, target_id: str, target_name: str = None, calibration=None, display_info=None) -> None:
+    async def start_overlay(
+        self, target_id: str, target_name: str = None, calibration=None, display_info=None
+    ) -> None:
         proc = self._get_processor(target_id)
         if not proc.supports_overlay():
             raise ValueError(f"Target {target_id} does not support overlays")
@@ -707,10 +769,15 @@ class ProcessorManager(AutoRestartMixin, DeviceHealthMixin, DeviceTestModeMixin)
 
     # ===== CSS OVERLAY (direct, no target processor required) =====
 
-    async def start_css_overlay(self, css_id: str, display_info, calibration, css_name: str = None) -> None:
+    async def start_css_overlay(
+        self, css_id: str, display_info, calibration, css_name: str = None
+    ) -> None:
         await asyncio.to_thread(
             self._overlay_manager.start_overlay,
-            css_id, display_info, calibration, css_name,
+            css_id,
+            display_info,
+            calibration,
+            css_name,
         )
 
     async def stop_css_overlay(self, css_id: str) -> None:

server/src/wled_controller/core/processing/target_processor.py

@@ -14,7 +14,7 @@ import asyncio
 from abc import ABC, abstractmethod
 from dataclasses import dataclass
 from datetime import datetime
-from typing import TYPE_CHECKING, Callable, Dict, Optional, Tuple
+from typing import TYPE_CHECKING, Any, Callable, Dict, Optional, Tuple
 
 if TYPE_CHECKING:
     from wled_controller.core.processing.color_strip_stream_manager import ColorStripStreamManager
@@ -26,13 +26,16 @@ if TYPE_CHECKING:
     from wled_controller.storage.template_store import TemplateStore
     from wled_controller.storage.postprocessing_template_store import PostprocessingTemplateStore
     from wled_controller.storage.pattern_template_store import PatternTemplateStore
-    from wled_controller.storage.color_strip_processing_template_store import ColorStripProcessingTemplateStore
+    from wled_controller.storage.color_strip_processing_template_store import (
+        ColorStripProcessingTemplateStore,
+    )
 
 
 # ---------------------------------------------------------------------------
 # Shared dataclasses
 # ---------------------------------------------------------------------------
 
+
 @dataclass
 class ProcessingMetrics:
     """Metrics for processing performance."""
@@ -43,7 +46,9 @@ class ProcessingMetrics:
     errors_count: int = 0
     last_error: Optional[str] = None
     last_update: Optional[datetime] = None
-    last_update_mono: float = 0.0  # monotonic timestamp for hot-path; lazily converted to last_update on read
+    last_update_mono: float = (
+        0.0  # monotonic timestamp for hot-path; lazily converted to last_update on read
+    )
     start_time: Optional[datetime] = None
     fps_actual: float = 0.0
     fps_potential: float = 0.0
@@ -117,12 +122,14 @@ class TargetContext:
     cspt_store: Optional["ColorStripProcessingTemplateStore"] = None
     fire_event: Callable[[dict], None] = lambda e: None
     get_device_info: Callable[[str], Optional[DeviceInfo]] = lambda _: None
+    ha_manager: Optional[Any] = None  # HomeAssistantManager (avoid circular import)
 
 
 # ---------------------------------------------------------------------------
 # Abstract base class
 # ---------------------------------------------------------------------------
 
+
 class TargetProcessor(ABC):
     """Abstract base class for target processors.
 

server/src/wled_controller/main.py

@@ -116,6 +116,7 @@ processor_manager = ProcessorManager(
         gradient_store=gradient_store,
         weather_manager=weather_manager,
         asset_store=asset_store,
+        ha_manager=ha_manager,
     )
 )
 

server/src/wled_controller/static/css/dashboard.css

@@ -432,3 +432,38 @@
     color: var(--text-secondary);
     font-size: 0.8rem;
 }
+
+.perf-mode-toggle {
+    display: inline-flex;
+    gap: 0;
+    margin-left: auto;
+    border: 1px solid var(--border-color);
+    border-radius: 4px;
+    overflow: hidden;
+}
+
+.perf-mode-btn {
+    background: transparent;
+    border: none;
+    color: var(--text-secondary);
+    font-size: 0.65rem;
+    font-weight: 600;
+    text-transform: uppercase;
+    letter-spacing: 0.3px;
+    padding: 2px 8px;
+    cursor: pointer;
+    transition: background 0.15s, color 0.15s;
+}
+
+.perf-mode-btn:not(:last-child) {
+    border-right: 1px solid var(--border-color);
+}
+
+.perf-mode-btn:hover {
+    background: var(--hover-bg);
+}
+
+.perf-mode-btn.active {
+    background: var(--primary-color);
+    color: #fff;
+}

server/src/wled_controller/static/js/app.ts

@@ -51,7 +51,7 @@ import {
 import { startEventsWS, stopEventsWS } from './core/events-ws.ts';
 import { startEntityEventListeners } from './core/entity-events.ts';
 import {
-    startPerfPolling, stopPerfPolling,
+    startPerfPolling, stopPerfPolling, setPerfMode,
 } from './features/perf-charts.ts';
 import {
     loadPictureSources, switchStreamTab,
@@ -290,6 +290,7 @@ Object.assign(window, {
     stopUptimeTimer,
     startPerfPolling,
     stopPerfPolling,
+    setPerfMode,
 
     // streams / capture templates / PP templates
     loadPictureSources,

server/src/wled_controller/static/js/features/dashboard.ts

@@ -6,7 +6,7 @@ import { apiKey, _dashboardLoading, set_dashboardLoading, dashboardPollInterval,
 import { API_BASE, getHeaders, fetchWithAuth, escapeHtml, fetchMetricsHistory } from '../core/api.ts';
 import { t } from '../core/i18n.ts';
 import { showToast, showConfirm, formatUptime, formatCompact, setTabRefreshing } from '../core/ui.ts';
-import { renderPerfSection, initPerfCharts, startPerfPolling, stopPerfPolling } from './perf-charts.ts';
+import { renderPerfSection, renderPerfModeToggle, setPerfMode, initPerfCharts, startPerfPolling, stopPerfPolling } from './perf-charts.ts';
 import { startAutoRefresh, updateTabBadge } from './tabs.ts';
 import {
     ICON_TARGET, ICON_AUTOMATION, ICON_CLOCK, ICON_WARNING, ICON_OK,
@@ -511,7 +511,7 @@ export async function loadDashboard(forceFullRender: boolean = false): Promise<v
         const toolbar = `<div class="stream-tab-bar"><span class="cs-expand-collapse-group">${pollSelect}<button class="tutorial-trigger-btn" onclick="startDashboardTutorial()" title="${t('tour.restart')}">${ICON_HELP}</button></span></div>`;
         if (isFirstLoad) {
             container.innerHTML = `${toolbar}<div class="dashboard-perf-persistent dashboard-section">
-                ${_sectionHeader('perf', t('dashboard.section.performance'), '')}
+                ${_sectionHeader('perf', t('dashboard.section.performance'), '', renderPerfModeToggle())}
                 ${_sectionContent('perf', renderPerfSection())}
             </div>
             <div class="dashboard-dynamic">${dynamicHtml}</div>`;

server/src/wled_controller/static/js/features/ha-light-targets.ts

@@ -0,0 +1,375 @@
+/**
+ * HA Light Targets — editor, cards, CRUD for Home Assistant light output targets.
+ */
+
+import { _cachedHASources, haSourcesCache, colorStripSourcesCache, outputTargetsCache } from '../core/state.ts';
+import { fetchWithAuth, escapeHtml } from '../core/api.ts';
+import { t } from '../core/i18n.ts';
+import { Modal } from '../core/modal.ts';
+import { showToast, showConfirm } from '../core/ui.ts';
+import { ICON_CLONE, ICON_EDIT, ICON_START, ICON_STOP } from '../core/icons.ts';
+import * as P from '../core/icon-paths.ts';
+import { EntitySelect } from '../core/entity-palette.ts';
+import { wrapCard } from '../core/card-colors.ts';
+import { TagInput, renderTagChips } from '../core/tag-input.ts';
+import { getColorStripIcon } from '../core/icons.ts';
+
+const ICON_HA = `<svg class="icon" viewBox="0 0 24 24">${P.home}</svg>`;
+const _icon = (d: string) => `<svg class="icon" viewBox="0 0 24 24">${d}</svg>`;
+
+// ── Modal ──
+
+let _haLightTagsInput: TagInput | null = null;
+let _haSourceEntitySelect: EntitySelect | null = null;
+let _cssSourceEntitySelect: EntitySelect | null = null;
+let _editorCssSources: any[] = [];
+
+class HALightEditorModal extends Modal {
+    constructor() { super('ha-light-editor-modal'); }
+
+    onForceClose() {
+        if (_haLightTagsInput) { _haLightTagsInput.destroy(); _haLightTagsInput = null; }
+        if (_haSourceEntitySelect) { _haSourceEntitySelect.destroy(); _haSourceEntitySelect = null; }
+        if (_cssSourceEntitySelect) { _cssSourceEntitySelect.destroy(); _cssSourceEntitySelect = null; }
+    }
+
+    snapshotValues() {
+        return {
+            name: (document.getElementById('ha-light-editor-name') as HTMLInputElement).value,
+            ha_source: (document.getElementById('ha-light-editor-ha-source') as HTMLSelectElement).value,
+            css_source: (document.getElementById('ha-light-editor-css-source') as HTMLSelectElement).value,
+            update_rate: (document.getElementById('ha-light-editor-update-rate') as HTMLInputElement).value,
+            transition: (document.getElementById('ha-light-editor-transition') as HTMLInputElement).value,
+            mappings: _getMappingsJSON(),
+            tags: JSON.stringify(_haLightTagsInput ? _haLightTagsInput.getValue() : []),
+        };
+    }
+}
+
+const haLightEditorModal = new HALightEditorModal();
+
+function _getMappingsJSON(): string {
+    const rows = document.querySelectorAll('#ha-light-mappings-list .ha-light-mapping-row');
+    const mappings: any[] = [];
+    rows.forEach(row => {
+        mappings.push({
+            entity_id: (row.querySelector('.ha-mapping-entity') as HTMLInputElement).value.trim(),
+            led_start: parseInt((row.querySelector('.ha-mapping-led-start') as HTMLInputElement).value) || 0,
+            led_end: parseInt((row.querySelector('.ha-mapping-led-end') as HTMLInputElement).value) || -1,
+            brightness_scale: parseFloat((row.querySelector('.ha-mapping-brightness') as HTMLInputElement).value) || 1.0,
+        });
+    });
+    return JSON.stringify(mappings);
+}
+
+// ── Mapping rows ──
+
+export function addHALightMapping(data: any = null): void {
+    const list = document.getElementById('ha-light-mappings-list');
+    if (!list) return;
+
+    const row = document.createElement('div');
+    row.className = 'ha-light-mapping-row condition-fields';
+    row.innerHTML = `
+        <div class="condition-field">
+            <label>${t('ha_light.mapping.entity_id')}</label>
+            <input type="text" class="ha-mapping-entity" value="${escapeHtml(data?.entity_id || '')}" placeholder="light.living_room">
+        </div>
+        <div class="condition-field" style="display:flex; gap:0.5rem;">
+            <div style="flex:1">
+                <label>${t('ha_light.mapping.led_start')}</label>
+                <input type="number" class="ha-mapping-led-start" value="${data?.led_start ?? 0}" min="0" step="1">
+            </div>
+            <div style="flex:1">
+                <label>${t('ha_light.mapping.led_end')}</label>
+                <input type="number" class="ha-mapping-led-end" value="${data?.led_end ?? -1}" min="-1" step="1">
+            </div>
+            <div style="flex:1">
+                <label>${t('ha_light.mapping.brightness')}</label>
+                <input type="number" class="ha-mapping-brightness" value="${data?.brightness_scale ?? 1.0}" min="0" max="1" step="0.1">
+            </div>
+        </div>
+        <button type="button" class="btn btn-sm btn-danger ha-mapping-remove" onclick="this.closest('.ha-light-mapping-row').remove()">&times;</button>
+    `;
+    list.appendChild(row);
+}
+
+// ── Show / Close ──
+
+export async function showHALightEditor(targetId: string | null = null, cloneData: any = null): Promise<void> {
+    // Load data for dropdowns
+    const [haSources, cssSources] = await Promise.all([
+        haSourcesCache.fetch().catch((): any[] => []),
+        colorStripSourcesCache.fetch().catch((): any[] => []),
+    ]);
+    _editorCssSources = cssSources;
+
+    const isEdit = !!targetId;
+    const isClone = !!cloneData;
+    const titleKey = isEdit ? 'ha_light.edit' : 'ha_light.add';
+    document.getElementById('ha-light-editor-title')!.innerHTML = `${ICON_HA} ${t(titleKey)}`;
+    (document.getElementById('ha-light-editor-id') as HTMLInputElement).value = '';
+    (document.getElementById('ha-light-editor-error') as HTMLElement).style.display = 'none';
+
+    // Populate HA source dropdown
+    const haSelect = document.getElementById('ha-light-editor-ha-source') as HTMLSelectElement;
+    haSelect.innerHTML = haSources.map((s: any) =>
+        `<option value="${s.id}">${escapeHtml(s.name)}</option>`
+    ).join('');
+
+    // Populate CSS source dropdown
+    const cssSelect = document.getElementById('ha-light-editor-css-source') as HTMLSelectElement;
+    cssSelect.innerHTML = `<option value="">—</option>` + cssSources.map((s: any) =>
+        `<option value="${s.id}">${escapeHtml(s.name)}</option>`
+    ).join('');
+
+    // Clear mappings
+    document.getElementById('ha-light-mappings-list')!.innerHTML = '';
+
+    let editData: any = null;
+
+    if (isEdit) {
+        try {
+            const resp = await fetchWithAuth(`/output-targets/${targetId}`);
+            if (!resp.ok) throw new Error('Failed to load target');
+            editData = await resp.json();
+        } catch (e: any) {
+            if (e.isAuth) return;
+            showToast(e.message, 'error');
+            return;
+        }
+    } else if (isClone) {
+        editData = cloneData;
+    }
+
+    if (editData) {
+        if (isEdit) (document.getElementById('ha-light-editor-id') as HTMLInputElement).value = editData.id;
+        (document.getElementById('ha-light-editor-name') as HTMLInputElement).value = editData.name || '';
+        haSelect.value = editData.ha_source_id || '';
+        cssSelect.value = editData.color_strip_source_id || '';
+        (document.getElementById('ha-light-editor-update-rate') as HTMLInputElement).value = String(editData.update_rate ?? 2.0);
+        document.getElementById('ha-light-editor-update-rate-display')!.textContent = (editData.update_rate ?? 2.0).toFixed(1);
+        (document.getElementById('ha-light-editor-transition') as HTMLInputElement).value = String(editData.ha_transition ?? 0.5);
+        document.getElementById('ha-light-editor-transition-display')!.textContent = (editData.ha_transition ?? 0.5).toFixed(1);
+        (document.getElementById('ha-light-editor-description') as HTMLInputElement).value = editData.description || '';
+
+        // Load mappings
+        const mappings = editData.ha_light_mappings || [];
+        mappings.forEach((m: any) => addHALightMapping(m));
+    } else {
+        (document.getElementById('ha-light-editor-name') as HTMLInputElement).value = '';
+        (document.getElementById('ha-light-editor-update-rate') as HTMLInputElement).value = '2.0';
+        document.getElementById('ha-light-editor-update-rate-display')!.textContent = '2.0';
+        (document.getElementById('ha-light-editor-transition') as HTMLInputElement).value = '0.5';
+        document.getElementById('ha-light-editor-transition-display')!.textContent = '0.5';
+        (document.getElementById('ha-light-editor-description') as HTMLInputElement).value = '';
+        // Add one empty mapping by default
+        addHALightMapping();
+    }
+
+    // EntitySelects
+    if (_haSourceEntitySelect) { _haSourceEntitySelect.destroy(); _haSourceEntitySelect = null; }
+    _haSourceEntitySelect = new EntitySelect({
+        target: haSelect,
+        getItems: () => haSources.map((s: any) => ({
+            value: s.id, label: s.name, icon: ICON_HA,
+            desc: s.connected ? t('ha_source.connected') : t('ha_source.disconnected'),
+        })),
+        placeholder: t('palette.search'),
+    });
+
+    if (_cssSourceEntitySelect) { _cssSourceEntitySelect.destroy(); _cssSourceEntitySelect = null; }
+    _cssSourceEntitySelect = new EntitySelect({
+        target: cssSelect,
+        getItems: () => _editorCssSources.map((s: any) => ({
+            value: s.id, label: s.name, icon: getColorStripIcon(s.source_type), desc: s.source_type,
+        })),
+        placeholder: t('palette.search'),
+    });
+
+    // Tags
+    if (_haLightTagsInput) { _haLightTagsInput.destroy(); _haLightTagsInput = null; }
+    _haLightTagsInput = new TagInput(document.getElementById('ha-light-tags-container'), { placeholder: t('tags.placeholder') });
+    _haLightTagsInput.setValue(editData?.tags || []);
+
+    haLightEditorModal.open();
+    haLightEditorModal.snapshot();
+}
+
+export async function closeHALightEditor(): Promise<void> {
+    await haLightEditorModal.close();
+}
+
+// ── Save ──
+
+export async function saveHALightEditor(): Promise<void> {
+    const targetId = (document.getElementById('ha-light-editor-id') as HTMLInputElement).value;
+    const name = (document.getElementById('ha-light-editor-name') as HTMLInputElement).value.trim();
+    const haSourceId = (document.getElementById('ha-light-editor-ha-source') as HTMLSelectElement).value;
+    const cssSourceId = (document.getElementById('ha-light-editor-css-source') as HTMLSelectElement).value;
+    const updateRate = parseFloat((document.getElementById('ha-light-editor-update-rate') as HTMLInputElement).value) || 2.0;
+    const transition = parseFloat((document.getElementById('ha-light-editor-transition') as HTMLInputElement).value) || 0.5;
+    const description = (document.getElementById('ha-light-editor-description') as HTMLInputElement).value.trim() || null;
+
+    if (!name) {
+        haLightEditorModal.showError(t('ha_light.error.name_required'));
+        return;
+    }
+    if (!haSourceId) {
+        haLightEditorModal.showError(t('ha_light.error.ha_source_required'));
+        return;
+    }
+
+    // Collect mappings
+    const mappings = JSON.parse(_getMappingsJSON()).filter((m: any) => m.entity_id);
+
+    const payload: any = {
+        name,
+        ha_source_id: haSourceId,
+        color_strip_source_id: cssSourceId,
+        ha_light_mappings: mappings,
+        update_rate: updateRate,
+        transition,
+        description,
+        tags: _haLightTagsInput ? _haLightTagsInput.getValue() : [],
+    };
+
+    try {
+        let response;
+        if (targetId) {
+            response = await fetchWithAuth(`/output-targets/${targetId}`, {
+                method: 'PUT',
+                body: JSON.stringify(payload),
+            });
+        } else {
+            payload.target_type = 'ha_light';
+            response = await fetchWithAuth('/output-targets', {
+                method: 'POST',
+                body: JSON.stringify(payload),
+            });
+        }
+
+        if (!response.ok) {
+            const err = await response.json().catch(() => ({}));
+            throw new Error(err.detail || `HTTP ${response.status}`);
+        }
+
+        showToast(targetId ? t('ha_light.updated') : t('ha_light.created'), 'success');
+        outputTargetsCache.invalidate();
+        haLightEditorModal.forceClose();
+        // Reload targets tab
+        if (window.loadTargetsTab) await window.loadTargetsTab();
+    } catch (e: any) {
+        if (e.isAuth) return;
+        haLightEditorModal.showError(e.message);
+    }
+}
+
+// ── Edit / Clone / Delete ──
+
+export async function editHALightTarget(targetId: string): Promise<void> {
+    await showHALightEditor(targetId);
+}
+
+export async function cloneHALightTarget(targetId: string): Promise<void> {
+    try {
+        const resp = await fetchWithAuth(`/output-targets/${targetId}`);
+        if (!resp.ok) throw new Error('Failed to load target');
+        const data = await resp.json();
+        delete data.id;
+        data.name = data.name + ' (copy)';
+        await showHALightEditor(null, data);
+    } catch (e: any) {
+        if (e.isAuth) return;
+        showToast(e.message, 'error');
+    }
+}
+
+// ── Card rendering ──
+
+export function createHALightTargetCard(target: any, haSourceMap: Record<string, any> = {}, cssSourceMap: Record<string, any> = {}): string {
+    const haSource = haSourceMap[target.ha_source_id];
+    const cssSource = cssSourceMap[target.color_strip_source_id];
+    const haName = haSource ? escapeHtml(haSource.name) : target.ha_source_id || '—';
+    const cssName = cssSource ? escapeHtml(cssSource.name) : target.color_strip_source_id || '—';
+    const mappingCount = target.ha_light_mappings?.length || 0;
+    const isRunning = target.state?.processing;
+
+    return wrapCard({
+        type: 'card',
+        dataAttr: 'data-ha-target-id',
+        id: target.id,
+        removeOnclick: `deleteTarget('${target.id}')`,
+        removeTitle: t('common.delete'),
+        content: `
+            <div class="card-header">
+                <span class="card-title-text">${ICON_HA} ${escapeHtml(target.name)}</span>
+            </div>
+            <div class="stream-card-props">
+                <span class="stream-card-prop">${ICON_HA} ${haName}</span>
+                ${cssName !== '—' ? `<span class="stream-card-prop">${_icon(P.palette)} ${cssName}</span>` : ''}
+                <span class="stream-card-prop">${_icon(P.listChecks)} ${mappingCount} light${mappingCount !== 1 ? 's' : ''}</span>
+                <span class="stream-card-prop">${_icon(P.clock)} ${target.update_rate ?? 2.0} Hz</span>
+            </div>
+            ${renderTagChips(target.tags || [])}
+            ${target.description ? `<div class="template-config" style="opacity:0.7;">${escapeHtml(target.description)}</div>` : ''}`,
+        actions: `
+                <button class="btn btn-icon ${isRunning ? 'btn-danger' : 'btn-primary'}" data-action="${isRunning ? 'stop' : 'start'}" title="${isRunning ? t('targets.stop') : t('targets.start')}">
+                    ${isRunning ? ICON_STOP : ICON_START}
+                </button>
+                <button class="btn btn-icon btn-secondary" data-action="clone" title="${t('common.clone')}">${ICON_CLONE}</button>
+                <button class="btn btn-icon btn-secondary" data-action="edit" title="${t('common.edit')}">${ICON_EDIT}</button>`,
+    });
+}
+
+// ── Event delegation ──
+
+const _haLightActions: Record<string, (id: string) => void> = {
+    start: (id) => _startStop(id, 'start'),
+    stop: (id) => _startStop(id, 'stop'),
+    clone: cloneHALightTarget,
+    edit: editHALightTarget,
+};
+
+async function _startStop(targetId: string, action: 'start' | 'stop'): Promise<void> {
+    try {
+        const resp = await fetchWithAuth(`/output-targets/${targetId}/${action}`, { method: 'POST' });
+        if (!resp.ok) throw new Error(`HTTP ${resp.status}`);
+        outputTargetsCache.invalidate();
+        if (window.loadTargetsTab) await window.loadTargetsTab();
+    } catch (e: any) {
+        if (e.isAuth) return;
+        showToast(e.message, 'error');
+    }
+}
+
+export function initHALightTargetDelegation(container: HTMLElement): void {
+    container.addEventListener('click', (e: MouseEvent) => {
+        const btn = (e.target as HTMLElement).closest<HTMLElement>('[data-action]');
+        if (!btn) return;
+
+        const section = btn.closest<HTMLElement>('[data-card-section="ha-light-targets"]');
+        if (!section) return;
+        const card = btn.closest<HTMLElement>('[data-ha-target-id]');
+        if (!card) return;
+
+        const action = btn.dataset.action;
+        const id = card.getAttribute('data-ha-target-id');
+        if (!action || !id) return;
+
+        const handler = _haLightActions[action];
+        if (handler) {
+            e.stopPropagation();
+            handler(id);
+        }
+    });
+}
+
+// ── Expose to global scope ──
+
+window.showHALightEditor = showHALightEditor;
+window.closeHALightEditor = closeHALightEditor;
+window.saveHALightEditor = saveHALightEditor;
+window.editHALightTarget = editHALightTarget;
+window.cloneHALightTarget = cloneHALightTarget;
+window.addHALightMapping = addHALightMapping;

server/src/wled_controller/static/js/features/perf-charts.ts

@@ -1,5 +1,6 @@
 /**
  * Performance charts — real-time CPU, RAM, GPU usage with Chart.js.
+ * Supports system-wide and app-level (process) metrics with a toggle.
  * History is seeded from the server-side ring buffer on init.
  */
 
@@ -14,11 +15,16 @@ import { createColorPicker, registerColorPicker } from '../core/color-picker.ts'
 
 const MAX_SAMPLES = 120;
 const CHART_KEYS = ['cpu', 'ram', 'gpu'];
+const PERF_MODE_KEY = 'perfMetricsMode';
+
+type PerfMode = 'system' | 'app' | 'both';
 
 let _pollTimer: ReturnType<typeof setInterval> | null = null;
 let _charts: Record<string, any> = {};     // { cpu: Chart, ram: Chart, gpu: Chart }
 let _history: Record<string, number[]> = { cpu: [], ram: [], gpu: [] };
+let _appHistory: Record<string, number[]> = { cpu: [], ram: [], gpu: [] };
 let _hasGpu: boolean | null = null;   // null = unknown, true/false after first fetch
+let _mode: PerfMode = (localStorage.getItem(PERF_MODE_KEY) as PerfMode) || 'both';
 
 function _getColor(key: string): string {
     return localStorage.getItem(`perfChartColor_${key}`)
@@ -26,6 +32,12 @@ function _getColor(key: string): string {
         || '#4CAF50';
 }
 
+function _getAppColor(key: string): string {
+    const base = _getColor(key);
+    // Use a lighter/shifted version for the app line
+    return base + '99';  // 60% opacity hex suffix
+}
+
 function _onChartColorChange(key: string, hex: string | null): void {
     if (hex) {
         localStorage.setItem(`perfChartColor_${key}`, hex);
@@ -41,10 +53,43 @@ function _onChartColorChange(key: string, hex: string | null): void {
     if (chart) {
         chart.data.datasets[0].borderColor = hex;
         chart.data.datasets[0].backgroundColor = hex + '26';
+        chart.data.datasets[1].borderColor = hex + '99';
+        chart.data.datasets[1].backgroundColor = hex + '14';
         chart.update();
     }
 }
 
+/** Build the 3-way toggle HTML for perf section header. */
+export function renderPerfModeToggle(): string {
+    return `<span class="perf-mode-toggle" onclick="event.stopPropagation()">
+        <button class="perf-mode-btn${_mode === 'system' ? ' active' : ''}" data-perf-mode="system" onclick="setPerfMode('system')" title="${t('dashboard.perf.mode.system')}">${t('dashboard.perf.mode.system')}</button>
+        <button class="perf-mode-btn${_mode === 'app' ? ' active' : ''}" data-perf-mode="app" onclick="setPerfMode('app')" title="${t('dashboard.perf.mode.app')}">${t('dashboard.perf.mode.app')}</button>
+        <button class="perf-mode-btn${_mode === 'both' ? ' active' : ''}" data-perf-mode="both" onclick="setPerfMode('both')" title="${t('dashboard.perf.mode.both')}">${t('dashboard.perf.mode.both')}</button>
+    </span>`;
+}
+
+/** Change the perf metrics display mode. */
+export function setPerfMode(mode: PerfMode): void {
+    _mode = mode;
+    localStorage.setItem(PERF_MODE_KEY, mode);
+
+    // Update toggle button active states
+    document.querySelectorAll('.perf-mode-btn').forEach(btn => {
+        btn.classList.toggle('active', (btn as HTMLElement).dataset.perfMode === mode);
+    });
+
+    // Update dataset visibility on all charts
+    for (const key of CHART_KEYS) {
+        const chart = _charts[key];
+        if (!chart) continue;
+        const showSystem = mode === 'system' || mode === 'both';
+        const showApp = mode === 'app' || mode === 'both';
+        chart.data.datasets[0].hidden = !showSystem;
+        chart.data.datasets[1].hidden = !showApp;
+        chart.update('none');
+    }
+}
+
 /** Returns the static HTML for the perf section (canvas placeholders). */
 export function renderPerfSection(): string {
     // Register callbacks before rendering
@@ -81,11 +126,15 @@ function _createChart(canvasId: string, key: string): any {
     const ctx = document.getElementById(canvasId) as HTMLCanvasElement | null;
     if (!ctx) return null;
     const color = _getColor(key);
+    const showSystem = _mode === 'system' || _mode === 'both';
+    const showApp = _mode === 'app' || _mode === 'both';
     return new Chart(ctx, {
         type: 'line',
         data: {
             labels: Array(MAX_SAMPLES).fill(''),
-            datasets: [{
+            datasets: [
+                {
+                    // System-wide dataset
                     data: [],
                     borderColor: color,
                     backgroundColor: color + '26',
@@ -93,7 +142,21 @@ function _createChart(canvasId: string, key: string): any {
                     tension: 0.3,
                     fill: true,
                     pointRadius: 0,
-            }],
+                    hidden: !showSystem,
+                },
+                {
+                    // App-level dataset (dashed line)
+                    data: [],
+                    borderColor: color + '99',
+                    backgroundColor: color + '14',
+                    borderWidth: 1.5,
+                    borderDash: [4, 3],
+                    tension: 0.3,
+                    fill: true,
+                    pointRadius: 0,
+                    hidden: !showApp,
+                },
+            ],
         },
         options: {
             responsive: true,
@@ -115,9 +178,12 @@ async function _seedFromServer(): Promise<void> {
         const data = await fetchMetricsHistory();
         if (!data) return;
         const samples = data.system || [];
-        _history.cpu = samples.map(s => s.cpu).filter(v => v != null);
+        _history.cpu = samples.map((s: any) => s.cpu).filter((v: any) => v != null);
-        _history.ram = samples.map(s => s.ram_pct).filter(v => v != null);
+        _history.ram = samples.map((s: any) => s.ram_pct).filter((v: any) => v != null);
-        _history.gpu = samples.map(s => s.gpu_util).filter(v => v != null);
+        _history.gpu = samples.map((s: any) => s.gpu_util).filter((v: any) => v != null);
+        _appHistory.cpu = samples.map((s: any) => s.app_cpu).filter((v: any) => v != null);
+        _appHistory.ram = samples.map((s: any) => s.app_ram).filter((v: any) => v != null);
+        _appHistory.gpu = samples.map((s: any) => s.app_gpu_mem).filter((v: any) => v != null);
 
         // Detect GPU availability from history
         if (_history.gpu.length > 0) {
@@ -125,11 +191,20 @@ async function _seedFromServer(): Promise<void> {
         }
 
         for (const key of CHART_KEYS) {
-            if (_charts[key] && _history[key].length > 0) {
+            const chart = _charts[key];
-                _charts[key].data.datasets[0].data = [..._history[key]];
+            if (!chart) continue;
-                _charts[key].data.labels = _history[key].map(() => '');
+            // System dataset
-                _charts[key].update();
+            if (_history[key].length > 0) {
+                chart.data.datasets[0].data = [..._history[key]];
             }
+            // App dataset
+            if (_appHistory[key].length > 0) {
+                chart.data.datasets[1].data = [..._appHistory[key]];
+            }
+            // Align labels to the longer dataset
+            const maxLen = Math.max(chart.data.datasets[0].data.length, chart.data.datasets[1].data.length);
+            chart.data.labels = Array(maxLen).fill('');
+            chart.update();
         }
     } catch {
         // Silently ignore — charts will fill from polling
@@ -151,50 +226,99 @@ function _destroyCharts(): void {
     }
 }
 
-function _pushSample(key: string, value: number): void {
+function _pushSample(key: string, sysValue: number, appValue: number | null): void {
-    _history[key].push(value);
+    // System history
+    _history[key].push(sysValue);
     if (_history[key].length > MAX_SAMPLES) _history[key].shift();
+
+    // App history
+    if (appValue != null) {
+        _appHistory[key].push(appValue);
+        if (_appHistory[key].length > MAX_SAMPLES) _appHistory[key].shift();
+    }
+
     const chart = _charts[key];
     if (!chart) return;
-    const ds = chart.data.datasets[0].data;
+
-    ds.length = 0;
+    // Update system dataset
-    ds.push(..._history[key]);
+    const sysDs = chart.data.datasets[0].data;
-    // Ensure labels array matches length (reuse existing array)
+    sysDs.length = 0;
-    while (chart.data.labels.length < ds.length) chart.data.labels.push('');
+    sysDs.push(..._history[key]);
-    chart.data.labels.length = ds.length;
+
+    // Update app dataset
+    const appDs = chart.data.datasets[1].data;
+    appDs.length = 0;
+    appDs.push(..._appHistory[key]);
+
+    // Ensure labels array matches the longer dataset
+    const maxLen = Math.max(sysDs.length, appDs.length);
+    while (chart.data.labels.length < maxLen) chart.data.labels.push('');
+    chart.data.labels.length = maxLen;
     chart.update('none');
 }
 
+/** Format the value display based on mode. */
+function _formatValue(sysVal: string, appVal: string | null): string {
+    if (_mode === 'system') return sysVal;
+    if (_mode === 'app') return appVal ?? '-';
+    // 'both': show both
+    if (appVal != null) return `${sysVal} / ${appVal}`;
+    return sysVal;
+}
+
 async function _fetchPerformance(): Promise<void> {
     try {
         const resp = await fetch(`${API_BASE}/system/performance`, { headers: getHeaders() });
         if (!resp.ok) return;
         const data = await resp.json();
 
-        // CPU
+        // CPU — app_cpu_percent is in the same scale as cpu_percent (per-core %)
-        _pushSample('cpu', data.cpu_percent);
+        _pushSample('cpu', data.cpu_percent, data.app_cpu_percent);
         const cpuEl = document.getElementById('perf-cpu-value');
-        if (cpuEl) cpuEl.textContent = `${data.cpu_percent.toFixed(0)}%`;
+        if (cpuEl) {
+            cpuEl.textContent = _formatValue(
+                `${data.cpu_percent.toFixed(0)}%`,
+                `${data.app_cpu_percent.toFixed(0)}%`
+            );
+        }
         if (data.cpu_name) {
             const nameEl = document.getElementById('perf-cpu-name');
             if (nameEl && !nameEl.textContent) nameEl.textContent = data.cpu_name;
         }
 
-        // RAM
+        // RAM — convert app_ram_mb to percent of total for consistent chart scale
-        _pushSample('ram', data.ram_percent);
+        const appRamPct = data.ram_total_mb > 0
+            ? (data.app_ram_mb / data.ram_total_mb) * 100
+            : 0;
+        _pushSample('ram', data.ram_percent, appRamPct);
         const ramEl = document.getElementById('perf-ram-value');
         if (ramEl) {
             const usedGb = (data.ram_used_mb / 1024).toFixed(1);
             const totalGb = (data.ram_total_mb / 1024).toFixed(1);
-            ramEl.textContent = `${usedGb}/${totalGb} GB`;
+            const appMb = data.app_ram_mb.toFixed(0);
+            ramEl.textContent = _formatValue(
+                `${usedGb}/${totalGb} GB`,
+                `${appMb} MB`
+            );
         }
 
         // GPU
         if (data.gpu) {
             _hasGpu = true;
-            _pushSample('gpu', data.gpu.utilization);
+            // GPU utilization is system-wide only (no per-process util from NVML)
+            // For app, show memory percentage if available
+            const appGpuPct = (data.gpu.app_memory_mb != null && data.gpu.memory_total_mb)
+                ? (data.gpu.app_memory_mb / data.gpu.memory_total_mb) * 100
+                : null;
+            _pushSample('gpu', data.gpu.utilization, appGpuPct);
             const gpuEl = document.getElementById('perf-gpu-value');
-            if (gpuEl) gpuEl.textContent = `${data.gpu.utilization.toFixed(0)}% · ${data.gpu.temperature_c}°C`;
+            if (gpuEl) {
+                const sysText = `${data.gpu.utilization.toFixed(0)}% · ${data.gpu.temperature_c}°C`;
+                const appText = data.gpu.app_memory_mb != null
+                    ? `${data.gpu.app_memory_mb.toFixed(0)} MB VRAM`
+                    : null;
+                gpuEl.textContent = _formatValue(sysText, appText);
+            }
             if (data.gpu.name) {
                 const nameEl = document.getElementById('perf-gpu-name');
                 if (nameEl && !nameEl.textContent) nameEl.textContent = data.gpu.name;

server/src/wled_controller/static/js/features/targets.ts

@@ -11,6 +11,7 @@ import {
     _cachedValueSources, valueSourcesCache,
     streamsCache, audioSourcesCache, syncClocksCache,
     colorStripSourcesCache, devicesCache, outputTargetsCache, patternTemplatesCache,
+    _cachedHASources, haSourcesCache,
 } from '../core/state.ts';
 import { API_BASE, getHeaders, fetchWithAuth, escapeHtml, isOpenrgbDevice, fetchMetricsHistory } from '../core/api.ts';
 import { t } from '../core/i18n.ts';
@@ -19,6 +20,7 @@ import { Modal } from '../core/modal.ts';
 import { createDeviceCard, attachDeviceListeners, fetchDeviceBrightness, enrichOpenrgbZoneBadges, _computeMaxFps, getZoneCountCache, formatRelativeTime } from './devices.ts';
 import { _splitOpenrgbZone } from './device-discovery.ts';
 import { createKCTargetCard, patchKCTargetMetrics, connectKCWebSocket, disconnectKCWebSocket } from './kc-targets.ts';
+import { createHALightTargetCard, initHALightTargetDelegation } from './ha-light-targets.ts';
 import {
     getValueSourceIcon, getTargetTypeIcon, getDeviceTypeIcon, getColorStripIcon,
     ICON_CLONE, ICON_EDIT, ICON_START, ICON_STOP,
@@ -104,6 +106,7 @@ const csDevices = new CardSection('led-devices', { titleKey: 'targets.section.de
 ] });
 const csLedTargets = new CardSection('led-targets', { titleKey: 'targets.section.targets', gridClass: 'devices-grid', addCardOnclick: "showTargetEditor()", keyAttr: 'data-target-id', emptyKey: 'section.empty.targets', headerExtra: `<button class="btn btn-sm btn-danger" onclick="event.stopPropagation(); stopAllLedTargets()" data-stop-all="led" data-i18n-title="targets.stop_all.button" data-i18n-aria-label="targets.stop_all.button">${ICON_STOP}</button>`, bulkActions: _targetBulkActions });
 const csKCTargets = new CardSection('kc-targets', { titleKey: 'targets.section.key_colors', gridClass: 'devices-grid', addCardOnclick: "showKCEditor()", keyAttr: 'data-kc-target-id', emptyKey: 'section.empty.kc_targets', headerExtra: `<button class="btn btn-sm btn-danger" onclick="event.stopPropagation(); stopAllKCTargets()" data-stop-all="kc" data-i18n-title="targets.stop_all.button" data-i18n-aria-label="targets.stop_all.button">${ICON_STOP}</button>`, bulkActions: _targetBulkActions });
+const csHALightTargets = new CardSection('ha-light-targets', { titleKey: 'ha_light.section.title', gridClass: 'devices-grid', addCardOnclick: "showHALightEditor()", keyAttr: 'data-ha-target-id', emptyKey: 'section.empty.ha_light_targets', bulkActions: _targetBulkActions });
 const csPatternTemplates = new CardSection('kc-patterns', { titleKey: 'targets.section.pattern_templates', gridClass: 'templates-grid', addCardOnclick: "showPatternTemplateEditor()", keyAttr: 'data-pattern-template-id', emptyKey: 'section.empty.pattern_templates', bulkActions: [
     { key: 'delete', labelKey: 'bulk.delete', icon: ICON_TRASH, style: 'danger', confirm: 'bulk.confirm_delete', handler: _bulkDeletePatternTemplates },
 ] });
@@ -605,6 +608,7 @@ export async function loadTargetsTab() {
             valueSourcesCache.fetch().catch((): any[] => []),
             audioSourcesCache.fetch().catch((): any[] => []),
             syncClocksCache.fetch().catch((): any[] => []),
+            haSourcesCache.fetch().catch((): any[] => []),
         ]);
 
         const colorStripSourceMap = {};
@@ -658,6 +662,7 @@ export async function loadTargetsTab() {
         const ledDevices = devicesWithState;
         const ledTargets = targetsWithState.filter(t => t.target_type === 'led' || t.target_type === 'wled');
         const kcTargets = targetsWithState.filter(t => t.target_type === 'key_colors');
+        const haLightTargets = targetsWithState.filter(t => t.target_type === 'ha_light');
 
         // Update tab badge with running target count
         const runningCount = targetsWithState.filter(t => t.state && t.state.processing).length;
@@ -680,10 +685,16 @@ export async function loadTargetsTab() {
                     { key: 'kc-targets', titleKey: 'targets.section.key_colors', icon: getTargetTypeIcon('key_colors'), count: kcTargets.length },
                     { key: 'kc-patterns', titleKey: 'targets.section.pattern_templates', icon: ICON_TEMPLATE, count: patternTemplates.length },
                 ]
+            },
+            {
+                key: 'ha_light_group', icon: `<svg class="icon" viewBox="0 0 24 24">${P.home}</svg>`, titleKey: 'ha_light.section.title',
+                children: [
+                    { key: 'ha-light-targets', titleKey: 'ha_light.section.targets', icon: `<svg class="icon" viewBox="0 0 24 24">${P.home}</svg>`, count: haLightTargets.length },
+                ]
             }
         ];
         // Determine which tree leaf is active — migrate old values
-        const validLeaves = ['led-devices', 'led-targets', 'kc-targets', 'kc-patterns'];
+        const validLeaves = ['led-devices', 'led-targets', 'kc-targets', 'kc-patterns', 'ha-light-targets'];
         const activeLeaf = validLeaves.includes(activeSubTab) ? activeSubTab
             : activeSubTab === 'key_colors' ? 'kc-targets' : 'led-devices';
 
@@ -694,6 +705,9 @@ export async function loadTargetsTab() {
         const deviceItems = csDevices.applySortOrder(ledDevices.map(d => ({ key: d.id, html: createDeviceCard(d) })));
         const ledTargetItems = csLedTargets.applySortOrder(ledTargets.map(t => ({ key: t.id, html: createTargetCard(t, deviceMap, colorStripSourceMap, valueSourceMap) })));
         const kcTargetItems = csKCTargets.applySortOrder(kcTargets.map(t => ({ key: t.id, html: createKCTargetCard(t, pictureSourceMap, patternTemplateMap, valueSourceMap) })));
+        const haSourceMap: Record<string, any> = {};
+        _cachedHASources.forEach(s => { haSourceMap[s.id] = s; });
+        const haLightTargetItems = csHALightTargets.applySortOrder(haLightTargets.map(t => ({ key: t.id, html: createHALightTargetCard(t, haSourceMap, colorStripSourceMap) })));
         const patternItems = csPatternTemplates.applySortOrder(patternTemplates.map(pt => ({ key: pt.id, html: createPatternTemplateCard(pt) })));
 
         // Track which target cards were replaced/added (need chart re-init)
@@ -706,11 +720,13 @@ export async function loadTargetsTab() {
                 'led-targets': ledTargets.length,
                 'kc-targets': kcTargets.length,
                 'kc-patterns': patternTemplates.length,
+                'ha-light-targets': haLightTargets.length,
             });
             csDevices.reconcile(deviceItems);
             const ledResult = csLedTargets.reconcile(ledTargetItems);
             const kcResult = csKCTargets.reconcile(kcTargetItems);
             csPatternTemplates.reconcile(patternItems);
+            csHALightTargets.reconcile(haLightTargetItems);
             changedTargetIds = new Set<string>([...(ledResult.added as unknown as string[]), ...(ledResult.replaced as unknown as string[]), ...(ledResult.removed as unknown as string[]),
                                         ...(kcResult.added as unknown as string[]), ...(kcResult.replaced as unknown as string[]), ...(kcResult.removed as unknown as string[])]);
 
@@ -727,9 +743,11 @@ export async function loadTargetsTab() {
                 { key: 'led-targets', html: csLedTargets.render(ledTargetItems) },
                 { key: 'kc-targets', html: csKCTargets.render(kcTargetItems) },
                 { key: 'kc-patterns', html: csPatternTemplates.render(patternItems) },
+                { key: 'ha-light-targets', html: csHALightTargets.render(haLightTargetItems) },
             ].map(p => `<div class="target-sub-tab-panel stream-tab-panel${p.key === activeLeaf ? ' active' : ''}" id="target-sub-tab-${p.key}">${p.html}</div>`).join('');
             container.innerHTML = panels;
-            CardSection.bindAll([csDevices, csLedTargets, csKCTargets, csPatternTemplates]);
+            CardSection.bindAll([csDevices, csLedTargets, csKCTargets, csPatternTemplates, csHALightTargets]);
+            initHALightTargetDelegation(container);
 
             // Render tree sidebar with expand/collapse buttons
             _targetsTree.setExtraHtml(`<button class="tutorial-trigger-btn" onclick="startTargetsTutorial()" data-i18n-title="tour.restart" title="${t('tour.restart')}">${ICON_HELP}</button>`);

server/src/wled_controller/static/locales/en.json

@@ -759,6 +759,9 @@
     "dashboard.perf.gpu": "GPU",
     "dashboard.perf.unavailable": "unavailable",
     "dashboard.perf.color": "Chart color",
+    "dashboard.perf.mode.system": "System",
+    "dashboard.perf.mode.app": "App",
+    "dashboard.perf.mode.both": "Both",
     "dashboard.poll_interval": "Refresh interval",
     "automations.title": "Automations",
     "automations.empty": "No automations configured. Create one to automate scene activation.",
@@ -1815,6 +1818,31 @@
     "ha_source.deleted": "Home Assistant source deleted",
     "ha_source.delete.confirm": "Delete this Home Assistant connection?",
     "section.empty.ha_sources": "No Home Assistant sources yet. Click + to add one.",
+    "ha_light.section.title": "HA Lights",
+    "ha_light.section.targets": "HA Light Targets",
+    "ha_light.add": "Add HA Light Target",
+    "ha_light.edit": "Edit HA Light Target",
+    "ha_light.name": "Name:",
+    "ha_light.name.placeholder": "Living Room Lights",
+    "ha_light.ha_source": "HA Connection:",
+    "ha_light.css_source": "Color Strip Source:",
+    "ha_light.update_rate": "Update Rate:",
+    "ha_light.update_rate.hint": "How often to send color updates to HA lights (0.5-5.0 Hz). Lower values are safer for HA performance.",
+    "ha_light.transition": "Transition:",
+    "ha_light.transition.hint": "Smooth fade duration between colors (HA transition parameter).",
+    "ha_light.mappings": "Light Mappings:",
+    "ha_light.mappings.hint": "Map LED ranges to HA light entities. Each mapping averages the LED segment to a single color.",
+    "ha_light.mappings.add": "Add Mapping",
+    "ha_light.mapping.entity_id": "Entity ID:",
+    "ha_light.mapping.led_start": "LED Start:",
+    "ha_light.mapping.led_end": "LED End (-1=last):",
+    "ha_light.mapping.brightness": "Brightness Scale:",
+    "ha_light.description": "Description (optional):",
+    "ha_light.error.name_required": "Name is required",
+    "ha_light.error.ha_source_required": "HA connection is required",
+    "ha_light.created": "HA light target created",
+    "ha_light.updated": "HA light target updated",
+    "section.empty.ha_light_targets": "No HA light targets yet. Click + to add one.",
     "automations.condition.home_assistant": "Home Assistant",
     "automations.condition.home_assistant.desc": "HA entity state",
     "automations.condition.home_assistant.ha_source": "HA Source:",

server/src/wled_controller/static/locales/ru.json

@@ -759,6 +759,9 @@
     "dashboard.perf.gpu": "ГП",
     "dashboard.perf.unavailable": "недоступно",
     "dashboard.perf.color": "Цвет графика",
+    "dashboard.perf.mode.system": "Система",
+    "dashboard.perf.mode.app": "Приложение",
+    "dashboard.perf.mode.both": "Оба",
     "dashboard.poll_interval": "Интервал обновления",
     "automations.title": "Автоматизации",
     "automations.empty": "Автоматизации не настроены. Создайте автоматизацию для автоматической активации сцен.",

server/src/wled_controller/static/locales/zh.json

@@ -759,6 +759,9 @@
     "dashboard.perf.gpu": "GPU",
     "dashboard.perf.unavailable": "不可用",
     "dashboard.perf.color": "图表颜色",
+    "dashboard.perf.mode.system": "系统",
+    "dashboard.perf.mode.app": "应用",
+    "dashboard.perf.mode.both": "全部",
     "dashboard.poll_interval": "刷新间隔",
     "automations.title": "自动化",
     "automations.empty": "尚未配置自动化。创建一个以自动激活场景。",

server/src/wled_controller/storage/ha_light_output_target.py

@@ -0,0 +1,160 @@
+"""Home Assistant light output target — casts LED colors to HA lights."""
+
+from dataclasses import dataclass, field
+from datetime import datetime, timezone
+from typing import List, Optional
+
+from wled_controller.storage.output_target import OutputTarget
+
+
+def _resolve_ref(new_val: str, old_val: str) -> str:
+    """Resolve entity reference: empty string clears, non-empty replaces."""
+    return "" if new_val == "" else (new_val or old_val)
+
+
+@dataclass
+class HALightMapping:
+    """Maps an LED range to a single HA light entity."""
+
+    entity_id: str = ""  # e.g. "light.living_room"
+    led_start: int = 0  # start LED index (0-based)
+    led_end: int = -1  # end LED index (-1 = last)
+    brightness_scale: float = 1.0  # 0.0-1.0 multiplier on brightness
+
+    def to_dict(self) -> dict:
+        return {
+            "entity_id": self.entity_id,
+            "led_start": self.led_start,
+            "led_end": self.led_end,
+            "brightness_scale": self.brightness_scale,
+        }
+
+    @classmethod
+    def from_dict(cls, data: dict) -> "HALightMapping":
+        return cls(
+            entity_id=data.get("entity_id", ""),
+            led_start=data.get("led_start", 0),
+            led_end=data.get("led_end", -1),
+            brightness_scale=data.get("brightness_scale", 1.0),
+        )
+
+
+@dataclass
+class HALightOutputTarget(OutputTarget):
+    """Output target that casts LED colors to Home Assistant lights via service calls."""
+
+    ha_source_id: str = ""  # references HomeAssistantSource
+    color_strip_source_id: str = ""  # CSS providing the colors
+    light_mappings: List[HALightMapping] = field(default_factory=list)
+    update_rate: float = 2.0  # Hz (calls per second, 0.5-5.0)
+    transition: float = 0.5  # HA transition seconds (smooth fade between colors)
+    min_brightness_threshold: int = 0  # below this brightness → turn off light
+    color_tolerance: int = 5  # skip service call if RGB delta < this
+
+    def register_with_manager(self, manager) -> None:
+        """Register this HA light target with the processor manager."""
+        if self.ha_source_id and self.light_mappings:
+            manager.add_ha_light_target(
+                target_id=self.id,
+                ha_source_id=self.ha_source_id,
+                color_strip_source_id=self.color_strip_source_id,
+                light_mappings=self.light_mappings,
+                update_rate=self.update_rate,
+                transition=self.transition,
+                min_brightness_threshold=self.min_brightness_threshold,
+                color_tolerance=self.color_tolerance,
+            )
+
+    def sync_with_manager(
+        self,
+        manager,
+        *,
+        settings_changed: bool = False,
+        source_changed: bool = False,
+        device_changed: bool = False,
+        css_changed: bool = False,
+        **_kwargs,
+    ) -> None:
+        """Push changed fields to the processor manager."""
+        if settings_changed:
+            manager.update_target_settings(
+                self.id,
+                {
+                    "update_rate": self.update_rate,
+                    "transition": self.transition,
+                    "min_brightness_threshold": self.min_brightness_threshold,
+                    "color_tolerance": self.color_tolerance,
+                    "light_mappings": self.light_mappings,
+                },
+            )
+        if css_changed:
+            manager.update_target_css(self.id, self.color_strip_source_id)
+
+    def update_fields(
+        self,
+        *,
+        name=None,
+        ha_source_id=None,
+        color_strip_source_id=None,
+        light_mappings=None,
+        update_rate=None,
+        transition=None,
+        min_brightness_threshold=None,
+        color_tolerance=None,
+        description=None,
+        tags: Optional[List[str]] = None,
+        **_kwargs,
+    ) -> None:
+        """Apply mutable field updates."""
+        super().update_fields(name=name, description=description, tags=tags)
+        if ha_source_id is not None:
+            self.ha_source_id = _resolve_ref(ha_source_id, self.ha_source_id)
+        if color_strip_source_id is not None:
+            self.color_strip_source_id = _resolve_ref(
+                color_strip_source_id, self.color_strip_source_id
+            )
+        if light_mappings is not None:
+            self.light_mappings = light_mappings
+        if update_rate is not None:
+            self.update_rate = max(0.5, min(5.0, float(update_rate)))
+        if transition is not None:
+            self.transition = max(0.0, min(10.0, float(transition)))
+        if min_brightness_threshold is not None:
+            self.min_brightness_threshold = int(min_brightness_threshold)
+        if color_tolerance is not None:
+            self.color_tolerance = int(color_tolerance)
+
+    def to_dict(self) -> dict:
+        d = super().to_dict()
+        d["ha_source_id"] = self.ha_source_id
+        d["color_strip_source_id"] = self.color_strip_source_id
+        d["light_mappings"] = [m.to_dict() for m in self.light_mappings]
+        d["update_rate"] = self.update_rate
+        d["transition"] = self.transition
+        d["min_brightness_threshold"] = self.min_brightness_threshold
+        d["color_tolerance"] = self.color_tolerance
+        return d
+
+    @classmethod
+    def from_dict(cls, data: dict) -> "HALightOutputTarget":
+        mappings = [HALightMapping.from_dict(m) for m in data.get("light_mappings", [])]
+        return cls(
+            id=data["id"],
+            name=data["name"],
+            target_type="ha_light",
+            ha_source_id=data.get("ha_source_id", ""),
+            color_strip_source_id=data.get("color_strip_source_id", ""),
+            light_mappings=mappings,
+            update_rate=data.get("update_rate", 2.0),
+            transition=data.get("transition", 0.5),
+            min_brightness_threshold=data.get("min_brightness_threshold", 0),
+            color_tolerance=data.get("color_tolerance", 5),
+            description=data.get("description"),
+            tags=data.get("tags", []),
+            created_at=datetime.fromisoformat(
+                data.get("created_at", datetime.now(timezone.utc).isoformat())
+            ),
+            updated_at=datetime.fromisoformat(
+                data.get("updated_at", datetime.now(timezone.utc).isoformat())
+            ),
+        )

server/src/wled_controller/storage/output_target.py

@@ -21,14 +21,24 @@ class OutputTarget:
         """Register this target with the processor manager. Subclasses override."""
         pass
 
-    def sync_with_manager(self, manager, *, settings_changed: bool, source_changed: bool, device_changed: bool) -> None:
+    def sync_with_manager(
+        self, manager, *, settings_changed: bool, source_changed: bool, device_changed: bool
+    ) -> None:
         """Push changed fields to a running processor. Subclasses override."""
         pass
 
-    def update_fields(self, *, name=None, device_id=None, picture_source_id=None,
+    def update_fields(
-                      settings=None, key_colors_settings=None, description=None,
+        self,
+        *,
+        name=None,
+        device_id=None,
+        picture_source_id=None,
+        settings=None,
+        key_colors_settings=None,
+        description=None,
         tags: Optional[List[str]] = None,
-                      **_kwargs) -> None:
+        **_kwargs,
+    ) -> None:
         """Apply mutable field updates. Base handles common fields; subclasses handle type-specific ones."""
         if name is not None:
             self.name = name
@@ -60,8 +70,14 @@ class OutputTarget:
         target_type = data.get("target_type", "led")
         if target_type == "led":
             from wled_controller.storage.wled_output_target import WledOutputTarget
+
             return WledOutputTarget.from_dict(data)
         if target_type == "key_colors":
             from wled_controller.storage.key_colors_output_target import KeyColorsOutputTarget
+
             return KeyColorsOutputTarget.from_dict(data)
+        if target_type == "ha_light":
+            from wled_controller.storage.ha_light_output_target import HALightOutputTarget
+
+            return HALightOutputTarget.from_dict(data)
         raise ValueError(f"Unknown target type: {target_type}")

server/src/wled_controller/storage/output_target_store.py

@@ -12,6 +12,10 @@ from wled_controller.storage.key_colors_output_target import (
     KeyColorsSettings,
     KeyColorsOutputTarget,
 )
+from wled_controller.storage.ha_light_output_target import (
+    HALightMapping,
+    HALightOutputTarget,
+)
 from wled_controller.utils import get_logger
 
 logger = get_logger(__name__)
@@ -50,13 +54,18 @@ class OutputTargetStore(BaseSqliteStore[OutputTarget]):
         description: Optional[str] = None,
         picture_source_id: str = "",
         tags: Optional[List[str]] = None,
+        ha_source_id: str = "",
+        ha_light_mappings: Optional[List[HALightMapping]] = None,
+        update_rate: float = 2.0,
+        transition: float = 0.5,
+        color_tolerance: int = 5,
     ) -> OutputTarget:
         """Create a new output target.
 
         Raises:
             ValueError: If validation fails
         """
-        if target_type not in ("led", "key_colors"):
+        if target_type not in ("led", "key_colors", "ha_light"):
             raise ValueError(f"Invalid target type: {target_type}")
 
         # Check for duplicate name
@@ -96,6 +105,22 @@ class OutputTargetStore(BaseSqliteStore[OutputTarget]):
                 created_at=now,
                 updated_at=now,
             )
+        elif target_type == "ha_light":
+            target = HALightOutputTarget(
+                id=target_id,
+                name=name,
+                target_type="ha_light",
+                ha_source_id=ha_source_id,
+                color_strip_source_id=color_strip_source_id,
+                light_mappings=ha_light_mappings or [],
+                update_rate=update_rate,
+                transition=transition,
+                min_brightness_threshold=min_brightness_threshold,
+                color_tolerance=color_tolerance,
+                description=description,
+                created_at=now,
+                updated_at=now,
+            )
         else:
             raise ValueError(f"Unknown target type: {target_type}")
 
@@ -164,24 +189,28 @@ class OutputTargetStore(BaseSqliteStore[OutputTarget]):
     def get_targets_for_device(self, device_id: str) -> List[OutputTarget]:
         """Get all targets that reference a specific device."""
         return [
-            t for t in self._items.values()
+            t
+            for t in self._items.values()
             if isinstance(t, WledOutputTarget) and t.device_id == device_id
         ]
 
     def get_targets_referencing_source(self, source_id: str) -> List[str]:
         """Return names of KC targets that reference a picture source."""
         return [
-            target.name for target in self._items.values()
+            target.name
+            for target in self._items.values()
             if isinstance(target, KeyColorsOutputTarget) and target.picture_source_id == source_id
         ]
 
     def get_targets_referencing_css(self, css_id: str) -> List[str]:
-        """Return names of LED targets that reference a color strip source."""
+        """Return names of targets that reference a color strip source."""
-        return [
+        result = []
-            target.name for target in self._items.values()
+        for target in self._items.values():
-            if isinstance(target, WledOutputTarget)
+            if isinstance(target, WledOutputTarget) and target.color_strip_source_id == css_id:
-            and target.color_strip_source_id == css_id
+                result.append(target.name)
-        ]
+            elif isinstance(target, HALightOutputTarget) and target.color_strip_source_id == css_id:
+                result.append(target.name)
+        return result
 
     def count(self) -> int:
         """Get number of targets."""

server/src/wled_controller/templates/index.html

@@ -214,6 +214,7 @@
     {% include 'modals/sync-clock-editor.html' %}
     {% include 'modals/weather-source-editor.html' %}
     {% include 'modals/ha-source-editor.html' %}
+    {% include 'modals/ha-light-editor.html' %}
     {% include 'modals/asset-upload.html' %}
     {% include 'modals/asset-editor.html' %}
     {% include 'modals/settings.html' %}

server/src/wled_controller/templates/modals/ha-light-editor.html

@@ -0,0 +1,92 @@
+<!-- HA Light Target Editor Modal -->
+<div id="ha-light-editor-modal" class="modal" role="dialog" aria-modal="true" aria-labelledby="ha-light-editor-title">
+    <div class="modal-content">
+        <div class="modal-header">
+            <h2 id="ha-light-editor-title" data-i18n="ha_light.add">Add HA Light Target</h2>
+            <button class="modal-close-btn" onclick="closeHALightEditor()" data-i18n-aria-label="aria.close">&#x2715;</button>
+        </div>
+        <div class="modal-body">
+            <form id="ha-light-editor-form" onsubmit="return false;">
+                <input type="hidden" id="ha-light-editor-id">
+
+                <div id="ha-light-editor-error" class="error-message" style="display: none;"></div>
+
+                <!-- Name -->
+                <div class="form-group">
+                    <div class="label-row">
+                        <label for="ha-light-editor-name" data-i18n="ha_light.name">Name:</label>
+                    </div>
+                    <input type="text" id="ha-light-editor-name" data-i18n-placeholder="ha_light.name.placeholder" placeholder="Living Room Lights" required>
+                    <div id="ha-light-tags-container"></div>
+                </div>
+
+                <!-- HA Source -->
+                <div class="form-group">
+                    <div class="label-row">
+                        <label for="ha-light-editor-ha-source" data-i18n="ha_light.ha_source">HA Connection:</label>
+                    </div>
+                    <select id="ha-light-editor-ha-source"></select>
+                </div>
+
+                <!-- CSS Source -->
+                <div class="form-group">
+                    <div class="label-row">
+                        <label for="ha-light-editor-css-source" data-i18n="ha_light.css_source">Color Strip Source:</label>
+                    </div>
+                    <select id="ha-light-editor-css-source"></select>
+                </div>
+
+                <!-- Update Rate -->
+                <div class="form-group">
+                    <div class="label-row">
+                        <label for="ha-light-editor-update-rate">
+                            <span data-i18n="ha_light.update_rate">Update Rate:</span>
+                            <span id="ha-light-editor-update-rate-display">2.0</span> Hz
+                        </label>
+                        <button type="button" class="hint-toggle" onclick="toggleHint(this)" title="?" data-i18n-aria-label="aria.hint">?</button>
+                    </div>
+                    <small class="input-hint" style="display:none" data-i18n="ha_light.update_rate.hint">How often to send color updates to HA lights (0.5-5.0 Hz). Lower values are safer for HA performance.</small>
+                    <input type="range" id="ha-light-editor-update-rate" min="0.5" max="5.0" step="0.5" value="2.0"
+                        oninput="document.getElementById('ha-light-editor-update-rate-display').textContent = parseFloat(this.value).toFixed(1)">
+                </div>
+
+                <!-- Transition -->
+                <div class="form-group">
+                    <div class="label-row">
+                        <label for="ha-light-editor-transition">
+                            <span data-i18n="ha_light.transition">Transition:</span>
+                            <span id="ha-light-editor-transition-display">0.5</span>s
+                        </label>
+                        <button type="button" class="hint-toggle" onclick="toggleHint(this)" title="?" data-i18n-aria-label="aria.hint">?</button>
+                    </div>
+                    <small class="input-hint" style="display:none" data-i18n="ha_light.transition.hint">Smooth fade duration between colors (HA transition parameter). Higher values give smoother but slower transitions.</small>
+                    <input type="range" id="ha-light-editor-transition" min="0" max="5.0" step="0.1" value="0.5"
+                        oninput="document.getElementById('ha-light-editor-transition-display').textContent = parseFloat(this.value).toFixed(1)">
+                </div>
+
+                <!-- Light Mappings -->
+                <div class="form-group">
+                    <div class="label-row">
+                        <label data-i18n="ha_light.mappings">Light Mappings:</label>
+                        <button type="button" class="btn btn-sm btn-secondary" onclick="addHALightMapping()" data-i18n-title="ha_light.mappings.add">+</button>
+                    </div>
+                    <small class="input-hint" data-i18n="ha_light.mappings.hint">Map LED ranges to HA light entities. Each mapping averages the LED segment to a single color.</small>
+                    <div id="ha-light-mappings-list"></div>
+                </div>
+
+                <!-- Description -->
+                <div class="form-group">
+                    <div class="label-row">
+                        <label for="ha-light-editor-description" data-i18n="ha_light.description">Description (optional):</label>
+                    </div>
+                    <input type="text" id="ha-light-editor-description" placeholder="">
+                </div>
+
+            </form>
+        </div>
+        <div class="modal-footer">
+            <button class="btn btn-icon btn-secondary" onclick="closeHALightEditor()" title="Cancel" data-i18n-title="settings.button.cancel" data-i18n-aria-label="aria.cancel">&#x2715;</button>
+            <button class="btn btn-icon btn-primary" onclick="saveHALightEditor()" title="Save" data-i18n-title="settings.button.save" data-i18n-aria-label="aria.save">&#x2713;</button>
+        </div>
+    </div>
+</div>