Trying to independently control CW and WW channels on RGB-CCT COB strip

Questions
1

Quick background: I’m a plant and algae scientist, trying to build small light pannels to test growth under different light intensities and combinations of R,G,B,CW, and WW spectra. After some testing, 24V RGB-CCT COB strips will work best for my applications. I’m using the Athom WLED RGBCCT Analog and Digital Controller.

For this analog setup, I want to dial in precise brightness values for each light channel. This is no problem for R,G, and B channels, but I can’t independently control CW and WW channels. This is the best solution I’ve come up with:

{
“on”: true,
“bri”: 255, //global brightness
“seg”: [
{
“id”: 0,
“start”: 0,
“stop”: 1,
“len”: 1,
“grp”: 1,
“spc”: 0,
“of”: 0,
“on”: true,
“frz”: false,
“bri”: 255, //segment brightness
“cct”: 0, //0 for all WW, 255 for all CW
“col”: [[100, 100, 100, 100]], //R,G,B,WW/CW brightness
“fx”: 0
}
]
}

I want to assign a brigthness value for WW and another one for CW, but it seems that the brightness values for WW and CW are lumped together as a single CCT value.

Is there any way to independently control the WW and CW channels??

2

These strips are all analog, so you have 5 analog channels to control.
The way that control is shown to you in WLED depends on which protocol you choose for connecting them to the GPIOs on your controller.

Under Config->LED Preferences->Hardware Setup you currently have chosen PWM RGB+CCT.
That creates a Temperature based White control that you’ve seen but the entire strip is treated as 1 LED.

Note the GPIOs that are currently in use.

Change the protocol to RGBW and use 4 out of the previous 5 GPIOs (R,G,B and either WW or CW). Now add another LED output (click the “+” at the bottom of the section) and use PWM W for a protocol and use the remaining GPIO.

That will give you 2 LEDs in WLED, the 1st is RGB+W and each of those 4 colours can be controlled individually. The 2nd is W only and can be controlled individually.

The only thing different will be you need to use 2 segments to control the different channels
1- Start 0, Stop 1 - Gives RGB+W
2- Start 1, Stop 2 - Gives W

You could also do this with 3 LED outputs:
PWM RGB (3 GPIOs)
PWM W (1 GPIO)
PWM W (1 GPIO)
That would create 3 LEDs and require 3 segments for control.

3

Well that worked perfectly! I really appreciate the help. Looking forward to getting this up and running now!