ESP8266 with Neopixels example

gistfile1.txt

#include <FastLED.h>

// How many leds in your strip?
#define NUM_LEDS 30
#define DATA_PIN 8

CRGB leds[NUM_LEDS];

void setup() {
  Serial.begin(57600);
  Serial.println("resetting");
  LEDS.addLeds<WS2812, DATA_PIN, RGB>(leds, NUM_LEDS);
  LEDS.setBrightness(84);
}

void fadeall() {
  for (int i = 0; i < NUM_LEDS; i++) {
    leds[i].nscale8(250);
  }
}

void loop() {
  static uint8_t hue = 0;
  Serial.print("x");

  for (int y = 0; y < 10; y++) {
    // First slide the led in one direction
    for (int i = 0; i < NUM_LEDS / 2; i++) {
      // Set the i'th led to red
      leds[i] = CHSV(hue++, 255, 255);
      leds[NUM_LEDS - i] = CHSV(hue++, 255, 255);


      if ( random8() < 30) {
        leds[ random16(NUM_LEDS) ] += CRGB::White;
      }

      // Show the leds
      FastLED.show();
      // now that we've shown the leds, reset the i'th led to black
      // leds[i] = CRGB::Black;
      fadeall();
      // Wait a little bit before we loop around and do it again
      delay(35);
    }
    Serial.print("x");
  }



  for (int y = 0; y < 10; y++) {
    // First slide the led in one direction
    for (int i = (NUM_LEDS) - 1; i >= 0; i--) {
      // Set the i'th led to red
      leds[i] = CHSV(hue++, 255, 255);
      leds[NUM_LEDS - i] = CHSV(hue++, 255, 255);


      if ( random8() < 30) {
        leds[ random16(NUM_LEDS) ] += CRGB::White;
      }

      // Show the leds
      FastLED.show();
      // now that we've shown the leds, reset the i'th led to black
      // leds[i] = CRGB::Black;
      fadeall();
      // Wait a little bit before we loop around and do it again
      delay(35);
    }
    Serial.print("x");
  }
}