main.ino

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

//#define RxD 2
//#define TxD 1
#define LED 5

#define DEBUG_ENABLED 1
#define blueToothSerial Serial 


//SoftwareSerial blueToothSerial(RxD, TxD);
Adafruit_NeoPixel strip = Adafruit_NeoPixel(16, LED, NEO_GRB + NEO_KHZ800);

int led = LED;
int loadingIndex = 0;
int onTrack = 1;
int onesecond = 1000;
int waiting = 250;

void setup()
{
  strip.begin();
  strip.clear();
  strip.show();

//  pinMode(RxD, INPUT);
//  pinMode(TxD, OUTPUT);
  setupBlueToothConnection();
}

void loop()
{
  String hex;
  char recvChar;
  // colorWipe(strip.Color(0, 0, 255), 50); // Blue
  while (1)
  {
    //check if there's any data sent from the remote bluetooth shield
    if (blueToothSerial.available())
    {
      recvChar = blueToothSerial.read();
      hex = String(recvChar, HEX);
      
      if(hex == "0")
      {
        loading(2);
        colorWipe(strip.Color(0, 0, 0), 0); // Off
      }
      if(hex == "1")
      {
        turnRight();
      }
      if(hex == "2")
      {
        turnLeft();
      }/*
      if(hex == "3")
      {
        continueFront();
        continueFront();
        continueFront();
      } 
      if(hex == "4")
      {
        commingCall();
        commingCall();
        commingCall();
      }      
      if(hex == "5")
      {
        dangerZone();
        dangerZone();
      }
      if(hex == "6")
      {
        turnRightDiagonalUp();
      }
      if(hex == "7")
      {
        turnRightDiagonalDown();
      }*/
      if(hex == "8")
      {
        turnLeftDiagonalUp();
      }
      if(hex == "9")
      {
        turnLeftDiagonalDown();
      }
      /*
      if (hex == "1")
      {
        colorWipe(strip.Color(0, 0, 0), 0); // Off
        delay(200);
        onTrack = 1;
      }
      else if (hex == "2")
      {
        colorWipe(strip.Color(0, 0, 0), 0); // Off
        delay(200);
        onTrack = 0;
      }
      */
    }
    else
    {
      //onTrack = 0;
      //loading(1);
      //delay(500);
      //continueFront();
      //loading(2);
      /*
      if (onTrack == 1)
      {
        colorBlink(strip.Color(0, 255, 0), 500, 3); // Green
      }
      else if (onTrack == 0)
      {
        loading(1);
        colorWipe(strip.Color(0, 0, 0), 0); // Off
        delay(500);
        colorBlink(strip.Color(0, 255, 0), 500, 3); // Green
        onTrack = 1;
      }
      */ 
    }
  }
}

void setupBlueToothConnection()
{
  blueToothSerial.begin(9600);
  blueToothSerial.print("AT");
  blueToothSerial.print("AT+ROLE0");
  blueToothSerial.print("AT+UUID0xFFE0");
  blueToothSerial.print("AT+CHAR0xFFE1");
  blueToothSerial.print("AT+NAMERingo_BLE");
}

// Fill the dots one after the other with a color
void colorBlink(uint32_t c, uint8_t wait, int times)
{
/*  for (int j = 0; j < times; j++)
  {
    for (uint16_t i = 0; i < strip.numPixels(); i++)
    {
      if (i == 0 || i == 1 || i == 15)
      {
        strip.setPixelColor(i, c);
      }
    }
    strip.show();
    delay(wait);
    colorWipe(strip.Color(0, 0, 0), 0); // Off
    delay(wait);
  }*/
}

void continueFront()
{
  /*uint32_t c = strip.Color(0, 255, 0); //Green
  int off = strip.Color(0, 0, 0); //off
  int wait = 150;
  strip.setPixelColor(14, c);
  strip.setPixelColor(2, c);
  strip.show();
  delay(wait);
  colorWipe(off, 0); // Off
  strip.setPixelColor(15, c);
  strip.setPixelColor(1, c);
  strip.show();
  delay(wait);
  colorWipe(off, 0); // Off
  strip.setPixelColor(0, c);
  strip.show();
  delay(wait);
  colorWipe(off, 0); // Off */
}

void turnRight()
{
/*    uint32_t white = strip.Color(255, 255, 255); //White
    uint32_t green = strip.Color(0, 255, 0); //Green
    int off = strip.Color(0, 0, 0); //off
    // Turn on all leds in white
    for(uint16_t init = 0; init < 9; init++)
    {
        strip.setPixelColor(init, white);
        strip.show();
    }
    delay(500);
    uint16_t i = 0;
    //Now, leds must change in pairs to green.
    while(i <= 4)
    {
        strip.setPixelColor(0+i, green); // From first to fourth led
        strip.setPixelColor(8-i, green); // From eighth to fifth led
        strip.show();
        delay(waiting);
        i++;
    }
    colorWipe(off, 0); // Off
    delay(500);
    i = 0;
    while(i < 3)
    {
        for(uint16_t init = 0; init < 9; init++)
            {
                strip.setPixelColor(init, green);
                strip.show();
            }
        delay(onesecond);
        colorWipe(off, 0); // Off
        delay(500);
        i++;
    }*/
}

void turnRightDiagonalUp()
{
/*    uint32_t white = strip.Color(255, 255, 255); //White
    uint32_t green = strip.Color(0, 255, 0); //Green
    int off = strip.Color(0, 0, 0); //off
    // Turn on all leds in white
    for(uint16_t init = 0; init < 5; init++)
    {
        strip.setPixelColor(init, white);
        strip.show();
    }
    delay(500);
    uint16_t i = 0;
    //Now, leds must change in pairs to green.
    while(i <= 2)
    {
        strip.setPixelColor(0+i, green); // From first to third led
        strip.setPixelColor(4-i, green); // From fifth to fourth led
        strip.show();
        delay(waiting);
        i++;
    }
    colorWipe(off, 0); // Off
    delay(500);
    i = 0;
    while(i < 3)
    {
        for(uint16_t init = 0; init < 5; init++)
            {
                strip.setPixelColor(init, green);
                strip.show();
            }
        delay(onesecond);
        colorWipe(off, 0); // Off
        delay(500);
        i++;
    }*/
}

void turnRightDiagonalDown()
{
/*    uint32_t white = strip.Color(255, 255, 255); //White
    uint32_t green = strip.Color(0, 255, 0); //Green
    int off = strip.Color(0, 0, 0); //off
    // Turn on all leds in white
    for(uint16_t init = 4; init < 9; init++)
    {
        strip.setPixelColor(init, white);
        strip.show();
    }
    delay(500);
    uint16_t i = 0;
    //Now, leds must change in pairs to green.
    while(i <= 2)
    {
        strip.setPixelColor(4+i, green); // From fourth to sixth led
        strip.setPixelColor(8-i, green); // From eighth to seventh led
        strip.show();
        delay(waiting);
        i++;
    }
    colorWipe(off, 0); // Off
    delay(500);
    i = 0;
    while(i < 3)
    {
        for(uint16_t init = 4; init < 9; init++)
            {
                strip.setPixelColor(init, green);
                strip.show();
            }
        delay(onesecond);
        colorWipe(off, 0); // Off
        delay(500);
        i++;
    }*/
}

void turnLeft()
{
    uint32_t white = strip.Color(255, 255, 255); //White
    uint32_t green = strip.Color(0, 255, 0); //Green
    int off = strip.Color(0, 0, 0); //off
    // Turn on all leds in white
    for (uint16_t init = 16; init >= 8; init--)
    {
        if(init == 16)
        {
            strip.setPixelColor(0, white);
        }
        else
        {
            strip.setPixelColor(init, white);
        }
        strip.show();
    }
    delay(500);
    uint16_t i = 16;
    // Now, leds must change in pairs to green.
    while(i >= 12)
    {
        if(i == 16)
        {
            strip.setPixelColor(0, green); // Just for first
        }
        else
        {
            strip.setPixelColor(0+i, green); // From fifteenth to twelfth led
        }
        strip.setPixelColor(24-i, green); // From eighth to eleventh led
        strip.show();
        delay(waiting);
        i--;
    }
    colorWipe(off, 0); // Off
    delay(500);
    i = 0;
    while(i < 3)
    {
        for(uint16_t init = 16; init >= 8; init--)
            {
                if(init == 16)
                        {
                            strip.setPixelColor(0, green);
                        }
                        else
                        {
                            strip.setPixelColor(init, green);
                        }
                        strip.show();
            }
        delay(onesecond);
        colorWipe(off, 0); // Off
        delay(500);
        i++;
    }
}

void turnLeftDiagonalUp()
{
    uint32_t white = strip.Color(255, 255, 255); //White
    uint32_t green = strip.Color(0, 255, 0); //Green
    int off = strip.Color(0, 0, 0); //off
    // Turn on all leds in white
    for (uint16_t init = 16; init >= 12; init--)
    {
        if(init == 16)
        {
            strip.setPixelColor(0, white);
        }
        else
        {
            strip.setPixelColor(init, white);
        }
        strip.show();
    }
    delay(500);
    uint16_t i = 16;
    // Now, leds must change in pairs to green.
    while(i >= 14)
    {
        if(i == 16)
        {
            strip.setPixelColor(0, green); // Just for first
        }
        else
        {
            strip.setPixelColor(0+i, green); // From fifteenth to fourteenth  led
        }
        strip.setPixelColor(28-i, green); // From twelfth to thirteenth led
        strip.show();
        delay(waiting);
        i--;
    }
    colorWipe(off, 0); // Off
    delay(500);
    i = 0;
    while(i < 3)
    {
        for(uint16_t init = 16; init >= 12; init--)
            {
                if(init == 16)
                        {
                            strip.setPixelColor(0, green);
                        }
                        else
                        {
                            strip.setPixelColor(init, green);
                        }
                        strip.show();
            }
        delay(onesecond);
        colorWipe(off, 0); // Off
        delay(500);
        i++;
    }
}

void turnLeftDiagonalDown()
{
    uint32_t white = strip.Color(255, 255, 255); //White
    uint32_t green = strip.Color(0, 255, 0); //Green
    int off = strip.Color(0, 0, 0); //off
    // Turn on all leds in white
    for(uint16_t init = 8; init < 13; init++)
    {
        strip.setPixelColor(init, white);
        strip.show();
    }
    delay(500);
    uint16_t i = 0;
    // Now, leds must change in pairs to green.
    while(i <= 2)
    {
        strip.setPixelColor(12-i, green); // From twelfth to tenth led
        strip.setPixelColor(8+i, green); // From eighth to ninth led
        strip.show();
        delay(waiting);
        i++;
    }
    colorWipe(off, 0); // Off
    delay(500);
    i = 0;
    while(i < 3)
    {
        for(uint16_t init = 12; init >= 8; init--)
            {
                strip.setPixelColor(init, green);
                strip.show();
            }
        delay(onesecond);
        colorWipe(off, 0); // Off
        delay(500);
        i++;
    }
}

void turnOnU()
{
    uint32_t white = strip.Color(255, 255, 255); //White
    uint32_t green = strip.Color(0, 255, 0); //Green
    int off = strip.Color(0, 0, 0); //off
    // Turn on all leds in white
    for(uint16_t init = 4; init < 9; init++)
    {
        strip.setPixelColor(init, white);
        strip.show();
    }
    delay(500);
    uint16_t i = 0;
    //Now, leds must change in pairs to green.
    while(i <= 2)
    {
        strip.setPixelColor(4+i, green); // From fourth to sixth led
        strip.setPixelColor(8-i, green); // From eighth to seventh led
        strip.show();
        delay(waiting);
        i++;
    }
    colorWipe(off, 0); // Off
    delay(500);
    i = 0;
    while(i < 3)
    {
        for(uint16_t init = 4; init < 9; init++)
            {
                strip.setPixelColor(init, green);
                strip.show();
            }
        delay(onesecond);
        colorWipe(off, 0); // Off
        delay(500);
        i++;
    }
}

void commingCall()
{
/*  uint32_t c = strip.Color(0, 0, 255); //Blue
  int off = strip.Color(0, 0, 0); //off
  int wait = 170;
  strip.setPixelColor(7, c);
  strip.setPixelColor(9, c);
  strip.show();
  delay(wait);
  colorWipe(off, 0); // Off
  strip.setPixelColor(6, c);
  strip.setPixelColor(10, c);
  strip.show();
  delay(wait);
  colorWipe(off, 0); // Off
  strip.setPixelColor(8, c);
  strip.show();
  delay(wait);
  colorWipe(off, 0); // Off*/
}

void dangerZone()
{
/*  uint32_t c = strip.Color(255, 0, 0); //Red
  int off = strip.Color(0, 0, 0); //off
  int wait = 250;
  strip.setPixelColor(6, c);
  strip.setPixelColor(8, c);
  strip.setPixelColor(10, c);
  strip.show();
  delay(wait);
  colorWipe(off, 0); // Off */
}

// 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);
  }
}

int shouldBeOff(int i, int l)
{
  if ((l < strip.numPixels() - 2) && (i >= l && i <= l + 2))
  {
    /* | 0 1 2 | 3 4 5 6 7 8 9 10 11 12 13 14 15   ---->   0 1 2 3 4 5 6 7 8 9 10 11 12 | 13 14 15 | */
    return 1;
  }
  if (l == strip.numPixels() - 2 && (i == l || i == l + 1 || i == 0))
  {
    /* 0 | 1 2 3 4 5 6 7 8 9 10 11 12 13 | 14 15 */
    return 1;
  }
  if ((l == strip.numPixels() - 1) && (i == l || i == 0 || i == 1))
  {
    /* 0 1 | 2 3 4 5 6 7 8 9 10 11 12 13 14 | 15 */
    return 1;
  }
  return 0;
}

void loading(int times)
{
  for (int h = 0; h < times; h++)
  {
    for (int x = 0; x < strip.numPixels(); x++)
    {
      int wait = 100;
      for (int i = 0; i < strip.numPixels(); i++)
      {
        if (shouldBeOff(i, loadingIndex))
        {
          strip.setPixelColor(i, strip.Color(0, 0, 0));
        }
        else
        {
          strip.setPixelColor(i, strip.Color(0, 0, 255));
        }
      }
      strip.show();
      delay(wait);

      loadingIndex++;
      if (loadingIndex == strip.numPixels())
      {
        loadingIndex = 0;
      }
    }
  }
}

// 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);
}