Pretty LED stuff.

gistfile1.txt

#include <Adafruit_NeoPixel.h>

#define PIN 6
#define NumberPixels 60
#define FadeFrames 6

// Parameter 1 = number of pixels in strip
// Parameter 2 = 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)
Adafruit_NeoPixel strip = Adafruit_NeoPixel(NumberPixels, PIN, NEO_GRB + NEO_KHZ800);


uint32_t coloursOld[ NumberPixels ][3];
uint32_t coloursNew[ NumberPixels ][3];

void setup() {
  strip.begin();
  strip.setBrightness(100);
  strip.show(); // Initialize all pixels to 'off'
}

void loop() {
	crowdForever();
}

void randomSet(uint32_t colours[][3]) { // I am stupid and don't know pointers..

	for(uint32_t ledNr=0;ledNr<strip.numPixels();ledNr++) 
	{ 
		colours[ledNr][0] = random(256);
		colours[ledNr][1] = random(256);
		colours[ledNr][2] = 20;
	} 

	return;
}

void fade() {
	uint32_t rgbTriplet[3];
	
	for (uint32_t Frame = 1; Frame <= FadeFrames; ++Frame ) {
		for (uint32_t ledNr=0; ledNr < strip.numPixels(); ledNr++ ) {

			for (uint32_t rgb = 0; rgb < 3; ++rgb ) {
				rgbTriplet[rgb] = coloursOld[ledNr][rgb] + (int)(((float)coloursNew[ledNr][rgb] - (float)coloursOld[ledNr][rgb]) / (float)FadeFrames * (float)Frame);
			}
			strip.setPixelColor(ledNr, rgbTriplet[0], rgbTriplet[1], rgbTriplet[2]);

		}
		delay(0);
		strip.show();
	}
	
}

void crowdForever() {	
	randomSeed(analogRead(0));
	randomSet(coloursNew);

	while (true) {
		delay(0);
		memcpy ( coloursOld, coloursNew, sizeof(uint32_t) * NumberPixels * 3);
		randomSet(coloursNew);

		fade();

	}
}

gistfile2.txt

Bauteile:

- USB A-Stecker
	Nur zur Stromversorgung
	Bitte _nicht_ in ein Laptop/Computer stecken. Diese liefern nicht genügend Strom.
- USB-Netzteil - 5V, 1 Amper
- Lichterkette - RGB - jede LED einzelnd ansteuerbar
	http://www.aliexpress.com/item/12mm-UCS1903-WS2811-similar-to-WS2801-pixel-module-IP65-IP68-waterproof-DC5V-full-color-50pcs-a/1311369342.html
- Arduino UNO - Mikrocontroller - programmiert in C++
	http://www.amazon.de/Arduino-Uno-Board-REV-3/dp/B006H06TVG/ref=sr_1_2?ie=UTF8&qid=1393866523&sr=8-2&keywords=arduino+uno
	Code: https://gist.github.com/spaceSub/8529801