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djcysmic / NeopixelBusFX

NeopixelBusFX plugin for ESPEasy
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GRBW Sk6812 white LED doesn't light up #20

Closed dertobias closed 3 years ago

dertobias commented 3 years ago

recently bought an sk6812GRBW (warm white) strip… changed the define code to: #define GRBW //This is used for SK6812rgbw pixels that have the separate white led in them. and everything compiled without an error.

while trying white, or better nfx all FFFFFF i found it a bit to blueish and cold so i dimmed a little bit and found out that the white LED on the side doesn't light up at all - instead R, G and B are lit! - shouldn't they be completely off with an RGBW led and "FFFFFF" also tried hue settings but all the same :-(

djcysmic commented 3 years ago

For RGBW you have to use 4 colors in hex: rrggbbww In your case it would be 000000FF to light up only the white channel. It is not calculated into the RGB color because there are many different stripes with different color temperatures for the white channel (cold, neutral, warm etc.)

Hope this helps ;)

dertobias commented 3 years ago

Many THXs! this helps ;)