#include <Adafruit_NeoPixel.h>

#define PIN        6
#define NUMPIXELS 20


Adafruit_NeoPixel pixels(NUMPIXELS, PIN, NEO_GRB + NEO_KHZ800);
#define DELAYVAL 100

void setup() {
  pixels.begin();
}

void loop() {

  for(int i=0; i<NUMPIXELS; i++) {
    pixels.setPixelColor(i, pixels.Color(19, 111, 150));
    pixels.show();
    delay(DELAYVAL);
  }

  for(int i=0; i<NUMPIXELS; i++) {
    pixels.setPixelColor(i, pixels.Color(21, 179, 211));
    pixels.show();
    delay(DELAYVAL);
  }

  for(int i=0; i<NUMPIXELS; i++) {
    pixels.setPixelColor(i, pixels.Color(255, 217, 0));
    pixels.show();
    delay(DELAYVAL);
  }

  for(int i=0; i<NUMPIXELS; i++) {
    pixels.setPixelColor(i, pixels.Color(243, 135, 47));
    pixels.show();
    delay(DELAYVAL);
  }

  for(int i=0; i<NUMPIXELS; i++) {
    pixels.setPixelColor(i, pixels.Color(255, 89, 144));
    pixels.show();
    delay(DELAYVAL);
  }
}