#include <Adafruit_NeoPixel.h>
#ifdef __AVR__
  #include <avr/power.h>
#endif

// Parameter 1 = number of pixels in strip
// Parameter 2 = Arduino pin number (most are valid)
// Parameter 3 = pixel type flags
Adafruit_NeoPixel strip = Adafruit_NeoPixel(7, D10, NEO_GRB + NEO_KHZ800);  // pixels strip(s) connected to pin 10
Adafruit_NeoPixel onboard = Adafruit_NeoPixel(1, 12, NEO_GRB + NEO_KHZ800); // onboard pixel


int wait = 500;    //
int timeIncrementer = -10;

void setup() {
  pinMode(11,OUTPUT);
  digitalWrite(11, HIGH);
  pinMode(LED_BUILTIN, OUTPUT);
  digitalWrite(LED_BUILTIN, HIGH);    // turn the LED off

  strip.begin();
  strip.setBrightness(255);
  strip.show(); // Initialize all pixels to 'off'
  onboard.begin();
  onboard.setBrightness(255);
  onboard.show(); // Initialize all pixels to 'off'
  randomSeed(analogRead(0));
}

void loop() {

 
  setAll(strip.Color(random(255), random(255), 255)); // random color containing blue
  //setAll(strip.Color(255, random(255), random(255))); // random color containing red

  //setAll(strip.Color(0, 0, 0), 10); // off
  
  onboard.setPixelColor(0, onboard.Color(random(255), random(255), 255)); // random color containing blue
  //onboard.setPixelColor(0, onboard.Color(255, random(255), random(255))); // random color containing red

  delay(wait);
  // change the wait for next time through the loop:
  wait = wait + timeIncrementer;

  // reverse the direction of the fading at the ends of the fade:
  if (wait <= 20 || wait >= 500) {
    timeIncrementer = -timeIncrementer;
    rainbow(2);
  }

}

// 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 setAll(uint32_t c) {
  for(uint16_t i=0; i<strip.numPixels(); i++) {
    strip.setPixelColor(i, c);
  }
    strip.show();
}
// Rainbow cycle along whole strip. Pass delay time (in ms) between frames.
void rainbow(int wait) {
  // Hue of first pixel runs 5 complete loops through the color wheel.
  // Color wheel has a range of 65536 but it's OK if we roll over, so
  // just count from 0 to 5*65536. Adding 256 to firstPixelHue each time
  // means we'll make 5*65536/256 = 1280 passes through this loop:
  for(long firstPixelHue = 0; firstPixelHue < 5*65536; firstPixelHue += 256) {
    // strip.rainbow() can take a single argument (first pixel hue) or
    // optionally a few extras: number of rainbow repetitions (default 1),
    // saturation and value (wait) (both 0-255, similar to the
    // ColorHSV() function, default 255), and a true/false flag for whether
    // to apply gamma correction to provide 'truer' colors (default true).
    strip.rainbow(firstPixelHue);
    // Above line is equivalent to:
    // strip.rainbow(firstPixelHue, 1, 255, 255, true);
    strip.show(); // Update strip with new contents
    delay(wait);  // Pause for a moment
  }
}
void rainbowOnboard(uint8_t wait) {
  uint16_t i, j;

  for(j=0; j<256; j++) {
    for(i=0; i<onboard.numPixels(); i++) {
      onboard.setPixelColor(i, Wheel((i+j) & 255));
    }
    onboard.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 wheel
    for(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 chasing
    for (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 wheel
    for (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 onboard.Color(255 - WheelPos * 3, 0, WheelPos * 3);
  }
  if(WheelPos < 170) {
    WheelPos -= 85;
    return onboard.Color(0, WheelPos * 3, 255 - WheelPos * 3);
  }
  WheelPos -= 170;
  return onboard.Color(WheelPos * 3, 255 - WheelPos * 3, 0);
}