Hello, can someone show me how to do this?

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1

Hello, can someone show me how to do this?
I am using the Mega2560 and a NEO type strip of 60 LEDs.

I need to blend two colors WITHOUT using/going through, the color wheel.

I would like one end of the strip to be aqua and the other end Coral in color.
I dont want there to be any other colors in between. (No yellow or greens.)
Is this possible or must I go through the color wheel to blend?
Thanks

2

You want fill_gradient_RGB: http://fastled.io/docs/3.1/group___colorutils.html#ga6afaa1f712186a4b67445f69871cad88

fill_gradient_RGB(leds, 0, CRGB::Coral, NUM_LEDS, CRGB::Aqua);

This will do an rgb blend between the two colors, rather than a color wheel walk (which you can see a rough preview of here - http://meyerweb.com/eric/tools/color-blend/#FF7F50:00FFFF:10:hex )

3

Terrific!!!, now how can I add a third color in there? s there a way to tell it where to start the color and end the color? Like start on led number 13 and end on 26, then next color start at 27 and end at 40? Thanks again!!!1

4

One way would be to use two fill_gradients, for example:

fill_gradient_RGB(leds, 13, CRGB::Coral, 26, CRGB::Aqua);
fill_gradient_RGB(leds, 26, CRGB::Aqua, 40, CRGB::Green);
fastLED.show();

5

Thnx guys!!!