#include <Adafruit_NeoPixel.h>#ifdef __AVR__#include <avr/power.h>
#endif#define PIN 6// Parameter 1 = number of pixels in strip
// Parameter 2 = Arduino pin number (most are valid)
// Parameter 3 = pixel type flags, add together as needed:
//   NEO_KHZ800  800 KHz bitstream (most NeoPixel products w/WS2812 LEDs)
//   NEO_KHZ400  400 KHz (classic 'v1' (not v2) FLORA pixels, WS2811 drivers)
//   NEO_GRB     Pixels are wired for GRB bitstream (most NeoPixel products)
//   NEO_RGB     Pixels are wired for RGB bitstream (v1 FLORA pixels, not v2)
//   NEO_RGBW    Pixels are wired for RGBW bitstream (NeoPixel RGBW products)
Adafruit_NeoPixel strip = Adafruit_NeoPixel(60, PIN, NEO_GRB + NEO_KHZ800);// IMPORTANT: To reduce NeoPixel burnout risk, add 1000 uF capacitor across
// pixel power leads, add 300 - 500 Ohm resistor on first pixel's data input
// and minimize distance between Arduino and first pixel.  Avoid connecting
// on a live circuit...if you must, connect GND first.void theaterChase(uint32_t c, uint8_t wait);
void colorWipe(uint32_t c, uint8_t wait);
void rainbow(uint8_t wait);
void rainbowCycle(uint8_t wait);
void theaterChase(uint32_t c, uint8_t wait);
void theaterChaseRainbow(uint8_t wait);
uint32_t Wheel(byte WheelPos);void setup() {// This is for Trinket 5V 16MHz, you can remove these three lines if you are not using a Trinket#if defined (__AVR_ATtiny85__)if (F_CPU == 16000000) clock_prescale_set(clock_div_1);#endif// End of trinket special codestrip.begin();strip.show(); // Initialize all pixels to 'off'
}void loop() {/*  strip.setPixelColor(0,255,255,255);strip.show();delay(200);strip.setPixelColor(0,0,0, 0);strip.show();delay(2000);*///rainbow(20);//rainbowCycle(20);theaterChaseRainbow(50);
}// Fill the dots one after the other with a color
void colorWipe(uint32_t c, uint8_t wait) {for(uint16_t i=0; i<strip.numPixels(); i++) {strip.setPixelColor(i, c);strip.show();delay(wait);}
}void rainbow(uint8_t wait) {uint16_t i, j;for(j=0; j<256; j++) {for(i=0; i<strip.numPixels(); i++) {strip.setPixelColor(i, Wheel((i+j) & 255));}strip.show();delay(wait);}
}// Slightly different, this makes the rainbow equally distributed throughout
void rainbowCycle(uint8_t wait) {uint16_t i, j;for(j=0; j<256*5; j++) { // 5 cycles of all colors on wheelfor(i=0; i< strip.numPixels(); i++) {strip.setPixelColor(i, Wheel(((i * 256 / strip.numPixels()) + j) & 255));}strip.show();delay(wait);}
}//Theatre-style crawling lights.
void theaterChase(uint32_t c, uint8_t wait) {for (int j=0; j<10; j++) {  //do 10 cycles of chasingfor (int q=0; q < 3; q++) {for (uint16_t i=0; i < strip.numPixels(); i=i+3) {strip.setPixelColor(i+q, c);    //turn every third pixel on}strip.show();delay(wait);for (uint16_t i=0; i < strip.numPixels(); i=i+3) {strip.setPixelColor(i+q, 0);        //turn every third pixel off}}}
}//Theatre-style crawling lights with rainbow effect
void theaterChaseRainbow(uint8_t wait) {for (int j=0; j < 256; j++) {     // cycle all 256 colors in the wheelfor (int q=0; q < 3; q++) {for (uint16_t i=0; i < strip.numPixels(); i=i+3) {strip.setPixelColor(i+q, Wheel( (i+j) % 255));    //turn every third pixel on}strip.show();delay(wait);for (uint16_t i=0; i < strip.numPixels(); i=i+3) {strip.setPixelColor(i+q, 0);        //turn every third pixel off}}}
}// Input a value 0 to 255 to get a color value.
// The colours are a transition r - g - b - back to r.
uint32_t Wheel(byte WheelPos) {WheelPos = 255 - WheelPos;if(WheelPos < 85) {return strip.Color(255 - WheelPos * 3, 0, WheelPos * 3);}if(WheelPos < 170) {WheelPos -= 85;return strip.Color(0, WheelPos * 3, 255 - WheelPos * 3);}WheelPos -= 170;return strip.Color(WheelPos * 3, 255 - WheelPos * 3, 0);
}