// This #include statement was automatically added by the Particle IDE.
#include <neopixel.h>

// IMPORTANT: Set pixel COUNT, PIN and TYPE
#define PIXEL_PIN D2
#define PIXEL_COUNT 16
#define PIXEL_TYPE WS2812

Adafruit_NeoPixel light_ring = Adafruit_NeoPixel(PIXEL_COUNT, PIXEL_PIN, PIXEL_TYPE);

void setup() {
    
    light_ring.begin();
    light_ring.show(); // initialize everything to off. 
}

void loop() {
    // Version 1 - all blue 
    for( int i = 0; i < light_ring.numPixels(); i++ ){
        light_ring.setPixelColor( i, 0, 0, 255);
    }
    // as this appears after the loop
    // all of the changes are presented at once
    light_ring.show();
    delay( 2000 ); 
    
    {
    // Version 1 - all red 
    for( int i = 0; i < light_ring.numPixels(); i++ ){
        light_ring.setPixelColor( i, 255, 0, 0);
    }
    // as this appears after the loop
    // all of the changes are presented at once
    light_ring.show();
    delay( 2000 ); 
    
    {// Version 1 - all green
    for( int i = 0; i < light_ring.numPixels(); i++ ){
        light_ring.setPixelColor( i, 0, 255, 0);
    }
       // as this appears after the loop
    // all of the changes are presented at once
    light_ring.show();
    delay( 2000 );
    
    {
    // Version 1 - all white
    for( int i = 0; i < light_ring.numPixels(); i++ ){
        light_ring.setPixelColor( i, 255, 255, 255);
    }
       // as this appears after the loop
    // all of the changes are presented at once
    light_ring.show();
    delay( 2000 );
    
    // turn the neopixels off
    for( int i = 0; i < light_ring.numPixels(); i++ ){
        light_ring.setPixelColor( i, 0, 0 , 0 );
    }
    light_ring.show();
    delay( 2000 ); 
}
}
}
}