Hi @studioIngrid !
Sounds great ! Can i help you with testing maybe to make the changes quicker ?
About the first part i mention, to “start dimming up or down” without brightness start defined, could be some achievements possible please ?
Thank you !
Greetings
Ronnie
@studioIngrid If I might make a request for the script update, might it be possible for the script to detect whether the target lights support changes in color temperature, and if not, to have it omit those commands?
I ask just since I have some Lutron lights that support brightness (but not color temperature), and at the moment, the script doesn’t seem to work for those lights.
(On the other hand, the script works fabulously for my Hue bulbs—which support both brightness and color temperature—so I can confirm that I’ve got the script installed properly, as best as I can tell.)
Great idea, as I plan to also include RGB color change, so I will be sure to include this.
Thank you so much for this great script! I’m looking forward to the further improvements you’ve indicated in earlier posts, particularly breaking off if a manual change is detected, and rgb support. Are you planning to add xy_color support as part of rgb?
Thanks @studioIngrid, I’ve not tried your code, but it appears to be exactly what I’m after.
CAVEAT: I’m not a programmer
I may be able to chip in on the colour convesion issue that I want to resolve for another use case. The code below is more of an FYI as I can use your code as is, and noting my caveat, It would take me months to integrate it into yours.
To give context to the code, here’s the sequence of how it came about:
With that said, this is the gist of how the various code blocks below work:
Note:
mireds = 1,000,000 / Kelvin
I’m happy to answer any questions, but I don’t spend much time on this forum, so my answers will likely be delayed.
Template sensor example (the old school template sensor format is below):
- platform: template
sensors:
adaptive_lighting_mireds_bedroom:
value_template: "{{ state_attr('switch.adaptive_lighting_bedroom', 'color_temp_mired') }}"
attribute_templates:
rgb_colour: 0
hs_colour: 0
xy_colour: 0
kelvin: 0
brightness_pct: "{{ state_attr('switch.adaptive_lighting_bedroom', 'brightness_pct') }}"
Create as many template sensors as you want. The naming is important for the automation, so make sure each sensor name starts with adaptive_lighting_mireds_ and change bedroom to the various unique identifiers of your choice.
Automation:
- alias: Update adaptive lighting mireds conversion sensors
trigger:
- platform: event
event_type: state_changed
condition:
- condition: template
value_template: '{{ trigger.event.data.entity_id.startswith("sensor.adaptive_lighting_mireds_")
}}'
action:
- choose:
- conditions:
- condition: template
value_template: '{{ is_state(trigger.event.data.entity_id, ''unknown'') }}'
sequence:
- service: persistent_notification.create
data:
title: Adaptive lighting mireds conversion sensor not found
message: The adaptive lighting mireds conversion sensor for {{ trigger.event.data.entity_id
}} could not be found. Please create it first.
default:
- event: adaptive_lighting_mireds_conversion
event_data:
entity_id: '{{ trigger.event.data.entity_id }}'
value: '{{ trigger.event.data.new_state.state }}'
Apps.yaml
AdaptiveLightingMiredsConversion:
module: adaptive_lighting_mireds_conversion
class: AdaptiveLightingMiredsConversion
AppDaemon filename: adaptive_lighting_mireds_conversion.py in a folder of the same name
adaptive_lighting_mireds_conversion.py
import appdaemon.plugins.hass.hassapi as hass
import numpy as np
class AdaptiveLightingMiredsConversion(hass.Hass):
def initialize(self):
self.listen_event(self.trigger_conversion,
"adaptive_lighting_mireds_conversion")
def trigger_conversion(self, event_name, data, kwargs):
if 'entity_id' in data:
self.sensor_entity_id = data["entity_id"]
mireds = float(data["value"])
cct = 1e6 / mireds
rgb = self.colour_temperature_to_rgb(cct)
hs = self.rgb_to_hs(rgb)
xy = self.cct_to_xy(cct)
kelvin = self.colour_mireds_to_kelvin(cct)
self.log(f"RGB: {rgb}, HS: {hs}, xy: {xy}, kelvin: {kelvin}")
# Update the sensor value
self.set_state(self.sensor_entity_id, state=mireds,
attributes={"rgb_colour": rgb, "hs_colour": hs, "xy_colour": xy, "kelvin": kelvin})
def cct_to_xy(self, cct):
M = 1e6 / cct
if cct < 4000:
x = - 0.2661239 * 1e9 / (cct ** 3) - 0.2343580 * 1e6 / (cct ** 2) + \
0.8776956 * 1e3 / cct + 0.179910
elif cct <= 25000:
x = - 3.0258469 * 1e9 / (cct ** 3) + 2.1070379 * 1e6 / (cct ** 2) + \
0.2226347 * 1e3 / cct + 0.240390
else:
x = - 0.11026621 * (M ** 3) + 0.0516377 * (M ** 2) + \
0.075919 * M + 0.206556
if cct < 2222:
y = - 1.1063814 * (x ** 3) - 1.34811020 * \
(x ** 2) + 2.18555832 * x - 0.20219683
elif 2222 <= cct and cct < 4000:
y = - 0.9549476 * (x ** 3) - 1.37418593 * (x ** 2) + 2.09137015 * x - 0.16748867
elif 4000 <= cct and cct < 25000:
y = 3.0817580 * (x ** 3) - 5.87338670 * \
(x ** 2) + 3.75112997 * x - 0.37001483
else:
y = 1
return x, y
def xyY_to_XYZ(self, xyY):
x, y, Y = xyY
X = (Y / y) * x
Z = (Y / y) * (1 - x - y)
return X, Y, Z
def XYZ_to_sRGB(self, XYZ):
M = np.array([[3.2406, - 1.5372, - 0.4986],
[- 0.9689, 1.8758, 0.0415],
[0.0557, - 0.2040, 1.0570]])
linear_rgb = np.dot(M, XYZ)
return linear_rgb
def gamma_correct_sRGB(self, linear_rgb):
gamma_corrected_rgb = np.where(
linear_rgb <= 0.0031308,
linear_rgb * 12.92,
1.055 * (linear_rgb ** (1 / 2.4)) - 0.055)
return gamma_corrected_rgb
def colour_temperature_to_rgb(self, cct):
# Step 1: Convert colour temperature to xy chromaticity coordinates
xy = self.cct_to_xy(cct)
# Step 2: Convert xyY to XYZ (assuming Y = 1)
Y = 1.0
XYZ = self.xyY_to_XYZ((xy[0], xy[1], Y))
# Step 3: Convert XYZ to linear sRGB
linear_rgb = self.XYZ_to_sRGB(XYZ)
# Step 4: Apply gamma correction
gamma_corrected_rgb = self.gamma_correct_sRGB(linear_rgb)
# Clamp the RGB values to the [0, 1]
# range and convert them to 8 - bit integers
clamped_rgb = np.clip(gamma_corrected_rgb, 0, 1) * 255
# Convert the NumPy array to a list
return clamped_rgb.astype(int).tolist()
def rgb_to_hs(self, rgb):
r, g, b = [val / 255.0 for val in rgb]
max_value = max(r, g, b)
min_value = min(r, g, b)
difference = max_value - min_value
if max_value == min_value:
h = 0
elif max_value == r:
h = (60 * ((g - b) / difference) + 360) % 360
elif max_value == g:
h = (60 * ((b - r) / difference) + 120) % 360
elif max_value == b:
h = (60 * ((r - g) / difference) + 240) % 360
if max_value == 0:
s = 0
else:
s = difference / max_value
return h, s * 100
def colour_mireds_to_kelvin(self, cct):
return cct
Hi, sorry for ressucitate this topic, but I got a problem with my light.
I have a single WIFI dimmer that I want to turn it on and off from 0 to 60% in 30 minutes.
It is not RGB.
I installed this script, but when I run, I get this error about color_temp. How can I workarround ?
ERROR (SyncWorker_19) [homeassistant.components.python_script.smooth_fader.py] Error executing script: value must be at least 1 for dictionary value @ data['color_temp']
File "/usr/src/homeassistant/homeassistant/components/python_script/__init__.py", line 224, in execute
File "/usr/local/lib/python3.10/concurrent/futures/_base.py", line 451, in result
File "/usr/local/lib/python3.10/concurrent/futures/_base.py", line 403, in __get_result
File "/usr/local/lib/python3.10/site-packages/voluptuous/validators.py", line 232, in __call__
File "/usr/local/lib/python3.10/site-packages/voluptuous/validators.py", line 355, in _exec
File "/usr/local/lib/python3.10/site-packages/voluptuous/validators.py", line 351, in _exec
File "/usr/local/lib/python3.10/site-packages/voluptuous/schema_builder.py", line 272, in __call__
File "/usr/local/lib/python3.10/site-packages/voluptuous/schema_builder.py", line 818, in validate_callable
File "/usr/local/lib/python3.10/site-packages/voluptuous/schema_builder.py", line 272, in __call__
File "/usr/local/lib/python3.10/site-packages/voluptuous/validators.py", line 229, in _run
File "/usr/local/lib/python3.10/site-packages/voluptuous/validators.py", line 355, in _exec
File "/usr/local/lib/python3.10/site-packages/voluptuous/validators.py", line 353, in _exec
File "/usr/local/lib/python3.10/site-packages/voluptuous/schema_builder.py", line 818, in validate_callable
File "/usr/local/lib/python3.10/site-packages/voluptuous/schema_builder.py", line 272, in __call__
File "/usr/local/lib/python3.10/site-packages/voluptuous/schema_builder.py", line 595, in validate_dict
File "/usr/local/lib/python3.10/site-packages/voluptuous/schema_builder.py", line 433, in validate_mapping
Running with the code :
service: python_script.smooth_fader
data:
entity_id: light.controller_dimmable_b6af10
brightness_curve: linear
brightness_start: 0
brightness_end: 120
duration: "00:00:30"```Hi,
I haven’t worked on this code for a while. And I’m currently busy with other projects.
Did you check out Ashley’s script? Here.
I didn’t test is yet, but looks like it might be what you need.
— Ingrid