Feature Request: New Sketch: Gradient & Gradient TV RGBCCT

[TRusselo]

There is a RGBBCCT (RGBWW) strip sketch for a solid color strip
But the Gradient & Gradient TV sketches are based on RGB ( no white/warmwhite)
would be great if we could get RGBCCT gradient sketches. (TV and non-TV gradient sketches)

the white color matching between the DIY and official are way off due to official hue using RGBCCT 6-pin strips.

[mariusmotea]

Gradient effect can be created only on the strips with addressable leds. I think you want a sketch for SK6812 leds that have a dedicated powerful white led. Currently we have the regular Gradient Lightstrip sketch for SK6812, but not the TV Gradient .

[Paalap]

There are also FW1906 stips in place which are addressable and RBGCCT but the usual color conversion would not use RGB and CCT at the same time.

Was thinking about to try these (and to adjust the sketches accordingly)

[mariusmotea]

I look to see if there is support for FW1906 in the NeopixelBus library that we are using, and it seams it did not support these leds. I will take a look on these since i like they are using 24V power and may be suitable for a project of mine, but this will require some time.

https://github.com/Makuna/NeoPixelBus

GitHub

GitHub - Makuna/NeoPixelBus: An Arduino NeoPixel support library supporting a large variety of individually addressable LEDs. Please refer to the Wiki for more details. Please use the gitter channel to ask questions as the GitHub Issues feature is used for bug tracking.

An Arduino NeoPixel support library supporting a large variety of individually addressable LEDs. Please refer to the Wiki for more details. Please use the gitter channel to ask questions as the G...

[Paalap]

It is the same approach instead of 3 or 4 bits there are 5 (actually 6, RGB + empty + cw + ww) sent. Thus neopixel would require just a small adjustment but I would like to use also CCT on RGB mix and not only in CT mode - still searching for this

[mariusmotea]

It require small improvement on this PR #129 . There was added support for rgb to rgbw conversion. I test it with SK6812 and i work.

[Paalap]

@mariusmotea did you started some work here?

There is some initial development at NeopixelBus Makuna/NeoPixelBus#702

But just the initial draft and is not working for me...

[Paalap]

Just an update: with the braches ahead the master @ NeoPixelBus the strip is working (basic generic skech, only usual RGB + CT via separate chips, no blending of CT into RGB so far)

next steps will be

• testing of entertaiment (basic tests are fine)
• gradient sketch
• CT blend into RGB (a little bit more chalanging as with sk6812)

BUT I'm happy - 24v, i.e. voltage drop is not a topic and CT LED are quite important for me

[Paalap]

For now just fyi as I'm waiting for NeoPixelBus to post these as PR.
edit: now the changes are in the master branch of NeoPixelBus (but not published to arduino yet)

Almost nothing special, just white blending on two channels (warm and cold) inspired by SK6812 sketch. I was trying to balance the both whites, in additon the maximum blending on each white can be defined on web config. On CT I've added (also on web config) RGB blending for a little bit more brightnes.

Generic
Gradient

[iceteaSA]

@Paalap @mariusmotea The WS2805 LEDs are another example of RGB CCT strips with ICs. Would be awesome if support is added for them.

[mariusmotea]

I need to have the WS2805 first, but i don't expect to be complicated to merge the WS2812 sketch with the RGB-CCT sketch.

[iceteaSA]

I am going to get some soonish, for other projects, I would be happy to test? I want to use the BTL SP530E controller, but I would probably need a ESP32 sketch? I am going to install WLED for other use cases, as it already supports them. I doubt it is possible to use WLED lights as gradients?