Библиотеки/FastLED-master/examples/RGBSetDemo/RGBSetDemo.ino


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#include<FastLED.h>
#define NUM_LEDS 40

CRGBArray<NUM_LEDS> leds;

void setup() { FastLED.addLeds<NEOPIXEL,6>(leds, NUM_LEDS); }

void loop(){ 
  static uint8_t hue;
  for(int i = 0; i < NUM_LEDS/2; i++) {   
    // fade everything out
    leds.fadeToBlackBy(40);

    // let's set an led value
    leds[i] = CHSV(hue++,255,255);

    // now, let's first 20 leds to the top 20 leds, 
    leds(NUM_LEDS/2,NUM_LEDS-1) = leds(NUM_LEDS/2 - 1 ,0);
    FastLED.delay(33);
  }
}