#include <Adafruit_NeoPixel.h>

// Which pin on the Arduino is connected to the NeoPixels?
#define PIN 38  // On Trinket or Gemma, suggest changing this to 1

// How many NeoPixels are attached to the Arduino?
#define NUMPIXELS 1  // Popular NeoPixel ring size

// 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);

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

void loop() {
  pixels.setPixelColor(0, pixels.Color(0, 150, 0));
  pixels.show();  // Send the updated pixel colors to the hardware.
  delay(500);  // Pause before next pass through loop
  pixels.setPixelColor(0, pixels.Color(150, 0, 0));
  pixels.show();  // Send the updated pixel colors to the hardware.
  delay(500);
  pixels.setPixelColor(0, pixels.Color(0, 0, 150));
  pixels.show();  // Send the updated pixel colors to the hardware.
  delay(500);
}