#include <Adafruit_NeoPixel.h>   // version 1.15.2


#define PIN        18
#define NUMPIXELS 1
 
// When setting up the NeoPixel library, we tell it how many pixels,
// and which pin to use to send signals. Note that for older NeoPixel
// strips you might need to change the third parameter -- see the
// strandtest example for more information on possible values.
Adafruit_NeoPixel pixels(NUMPIXELS, PIN, NEO_GRB + NEO_KHZ800);

#define DELAYVAL 1000 // Time (in milliseconds) to pause between pixels

void setup() {
  pixels.begin(); // INITIALIZE NeoPixel strip object (REQUIRED)
}

void loop() {
  // red
  pixels.setPixelColor(0, pixels.Color(150, 0, 0));
  pixels.show();
  delay(DELAYVAL);

  // green
  pixels.setPixelColor(0, pixels.Color(0, 150, 0));
  pixels.show();
  delay(DELAYVAL);

  // blue
  pixels.setPixelColor(0, pixels.Color(0, 0, 150));
  pixels.show();
  delay(DELAYVAL);

  // orange
  pixels.setPixelColor(0, pixels.Color(150, 75, 0));
  pixels.show();
  delay(DELAYVAL);
}