palette test.ino

#include <FastLED.h>

#define LED_PIN     7
#define NUM_LEDS    100
#define BRIGHTNESS  150
#define LED_TYPE    WS2812B
#define COLOR_ORDER GRB
CRGB leds[NUM_LEDS];

#define UPDATES_PER_SECOND 100

CRGBPalette16 currentPalette;
TBlendType    currentBlending;


extern const TProgmemPalette16 myC9Palette_p PROGMEM;

void setup() {
  delay( 3000 ); // power-up safety delay
  FastLED.addLeds<LED_TYPE, LED_PIN, COLOR_ORDER>(leds, NUM_LEDS).setCorrection( TypicalLEDStrip );
  FastLED.setBrightness(  BRIGHTNESS );
  
  currentPalette = myC9Palette_p;
  currentBlending = NOBLEND;
}

void loop()
{

  static uint8_t startIndex = 0;
  startIndex = startIndex + 1; /* motion speed */

  FillLEDsFromPaletteColors( startIndex);

  FastLED.show();
  FastLED.delay(1000 / UPDATES_PER_SECOND);
}

void FillLEDsFromPaletteColors( uint8_t colorIndex)
{
  uint8_t brightness = 255;
  
  for( int i = 0; i < NUM_LEDS; i++) {
    leds[i] = ColorFromPalette( currentPalette, colorIndex, brightness, currentBlending);
    colorIndex += 3;
  }
}

const TProgmemPalette16 myC9Palette_p PROGMEM =
{
  CRGB::White,
  CRGB::Red, 
  CRGB::Green,
  CRGB::Yellow,
  CRGB::Blue,
  CRGB::Orange

};