Fix relative CT start/stop handling

.idea/PROJECT_STATE.md

@@ -48,8 +48,8 @@ Completed:
 - Relative color temperature control wired into light schema, UI order adjusted, and KNX color temperature types aligned.
 - Color temperature service calls now use mireds for better compatibility.
 - Relative dimming/color temperature decoding improved for control/stepcode payloads.
-- Relative color temperature adjustment now accepts step_code 0 as a single-step and registers control_dimming event types for relative dimming/CT.
-- Project version set to 0.0.31 and `CHANGELOG.md` maintained.
+- Relative dimming/CT now treat step_code 0 as a start/stop toggle and rely on raw payload parsing.
+- Project version set to 0.0.32 and `CHANGELOG.md` maintained.
 
 Files created:
 - `custom_components/ha_knx_bridge/__init__.py`

CHANGELOG.md

@@ -1,5 +1,8 @@
 # Changelog
 
+## 0.0.32 - 2026-02-15
+- Treat DPT 3.007 step_code 0 as a start/stop toggle for relative dimming/CT and rely on raw payload parsing.
+
 ## 0.0.31 - 2026-02-15
 - Treat DPT 3.007 step_code 0 as a single-step for relative dimming/CT and register control_dimming event types.
 

README.md

@@ -77,6 +77,7 @@ Notes:
 - Relative dimming (DPT 3.007) maps KNX step values (control/stepcode) to small `brightness_step_pct` changes in Home Assistant.
 - For relative dimming, the bridge repeats steps until a KNX stop telegram (0 or 8) is received.
 - Relative color temperature (DPT 3.007) adjusts Kelvin in the same start/stop pattern.
+- Some KNX keypads send `step_code 0` for a start/stop toggle; the bridge treats `step_code 0` as start when idle and stop when already dimming.
 - Color temperature mode must match the KNX telegram DPT: `relative` for 5.001, `absolute` for 7.600 (2-byte unsigned), `absolute_float` for DPT 9 (2-byte float). The bridge sends HA color temperature using `color_temp` (mireds) for maximum compatibility.
 
 ## Notes
@@ -112,5 +113,5 @@ Notes:
 - Advanced DPT mapping options and inversion settings.
 
 ## Versioning and Releases
-- Current version: 0.0.31
+- Current version: 0.0.32
 - `CHANGELOG.md` lists versions with the newest entries at the top.

custom_components/ha_knx_bridge/bridge.py

@@ -678,13 +678,13 @@ class BridgeManager:
             )
             self._register_knx_light_command(
                 port.relative_color_temperature_address,
-                "control_dimming",
+                None,
                 port,
                 "relative_color_temperature",
             )
             self._register_knx_light_command(
                 port.relative_dimming_address,
-                "control_dimming",
+                None,
                 port,
                 "relative_dimming",
             )
@@ -1180,7 +1180,7 @@ class BridgeManager:
                     if port.entity_id in self._light_dimming_tasks:
                         self._stop_light_dimming(port.entity_id)
                         return
-                    self._apply_light_dimming_step(
+                    self._start_light_dimming(
                         port.entity_id, direction, 1
                     )
                     return
@@ -1208,7 +1208,7 @@ class BridgeManager:
                     if port.entity_id in self._light_ct_tasks:
                         self._stop_light_ct_adjust(port.entity_id)
                         return
-                    self._apply_light_ct_step_once(
+                    self._start_light_ct_adjust(
                         port, direction, 1
                     )
                     return

custom_components/ha_knx_bridge/manifest.json

@@ -1,7 +1,7 @@
 {
   "domain": "ha_knx_bridge",
   "name": "HA KNX Bridge",
-  "version": "0.0.31",
+  "version": "0.0.32",
   "config_flow": true,
   "documentation": "https://github.com/bahmcloud/HA-KNX-Bridge",
   "issue_tracker": "https://github.com/bahmcloud/HA-KNX-Bridge/issues",