#include <Adafruit_NeoPixel.h>
 
#define PIN 2
 
// Parameter 1 = number of pixels in strip
// Parameter 2 = pin number (most are valid)
Adafruit_NeoPixel strip = Adafruit_NeoPixel(24, PIN, NEO_GRB + NEO_KHZ800);
 
void setup() {
  strip.begin();
  strip.setBrightness(150); //adjust brightness here
  strip.show();
}
 
void loop() {
  // Example procedure, feel free to delete.
  rainbow(24);
}
 
uint32_t Wheel(byte WheelPos) {
  if(WheelPos < 85) {
  return strip.Color(WheelPos * 3, 255 - WheelPos * 3, 0);
  } else if(WheelPos < 170) {
   WheelPos -= 85;
   return strip.Color(255 - WheelPos * 3, 0, WheelPos * 3);
  } else {
}}

void rainbow(uint8_t wait) {
  uint16_t i, j;
 
  for(j=0; j<10000; j++) {
    for(i=0; i<strip.numPixels(); i++) {
      strip.setPixelColor(i, Wheel((i+j) & 255));
    }
    strip.show();
    delay(wait);
}}