CHSV colour based palettes.

/*
 *  Just a FastLED palette demonstration.
 */


#include <FastLED.h>                                          // FastLED library.

#define LED_DT 12                                             // Serial data pin for WS2812 or WS2801.
#define COLOR_ORDER GRB                                       // Are they GRB for WS2812 and GBR for APA102
#define LED_TYPE WS2812                                       // What kind of strip are you using? WS2812, APA102. . .
#define NUM_LEDS 40                                           // Number of LED's.
uint8_t max_bright = 128;                                     // Overall brightness definition. It can be changed on the fly.

struct CRGB leds[NUM_LEDS];                                   // Initialize our LED array.

TBlendType    currentBlending = LINEARBLEND;

CRGBPalette16 test_pal = CRGBPalette16(CHSV( 120, 255, 25),  CHSV( 20, 25, 55),    CHSV( 30, 255, 105),  CHSV( 40, 255, 155),
                                       CHSV( 90, 255, 205),  CHSV( 110, 255, 255), CHSV( 178, 255, 255), CHSV( 210, 55, 155),
                                       CHSV( 220, 255, 255), CHSV( 230, 255, 255), CHSV( 140, 55, 55),   CHSV( 245, 255, 255),
                                       CHSV( 246, 255, 255), CHSV( 247, 155, 55),  CHSV( 250, 255, 255), CHSV( 252, 255, 255));


void setup() {
  delay(1000);
  LEDS.addLeds<LED_TYPE, LED_DT,COLOR_ORDER>(leds, NUM_LEDS);
  FastLED.setBrightness(max_bright);
}


void loop() {
  bettertest();
  FastLED.show();
}


void bettertest() {
  uint8_t i = millis()/16;
  fill_palette (leds, NUM_LEDS, i, 1, test_pal,255 , LINEARBLEND);
}