#include <Adafruit_NeoPixel.h>      //Adiciona a biblioteca Adafruit NeoPixel

#define DIN 12       //Nomeia o pino 6 do Arduino
#define qtdLEDs 12    //Informa a quantidade de LEDs que serão ligados em cascata

Adafruit_NeoPixel LED_INDICATOR(qtdLEDs, DIN);     //Instancia o objeto "LED_INDICATOR", informando a quantidade e o pino de sinal

//variaveis globais
int baudrate = 115200;
char inByte;
unsigned long lasttime = 0;
unsigned long timedelay = 250;
bool blink_ctl = false;
bool blink_status = true;


void yellow_blink()
{
  if (blink_ctl)
  {
    uint64_t now = millis();
    if((now -lasttime) >= timedelay)
    {
      lasttime = now;
      if(!blink_status) blink_status = true;
      else blink_status = false;
    }
    if(blink_status)
    {
      for(int i=0; i<qtdLEDs; i++)
      {
        LED_INDICATOR.setPixelColor(i, LED_INDICATOR.Color(255, 255, 0));
      }
      LED_INDICATOR.show();
    }
    else 
    {
      LED_INDICATOR.clear();
      LED_INDICATOR.show();
    }
  }
}

void leds()
{
  if(Serial.available() > 0) inByte = Serial.read();

  switch (inByte)
  {
    case 'a':
    LED_INDICATOR.setPixelColor(0, LED_INDICATOR.Color(0, 0, 255));
    LED_INDICATOR.show(); 
    break;

    case 'b':
    LED_INDICATOR.setPixelColor(0, LED_INDICATOR.Color(0, 255, 0));
    LED_INDICATOR.show(); 
    break;
      
    case 'c':
    LED_INDICATOR.setPixelColor(0, LED_INDICATOR.Color(255, 0, 0));
    LED_INDICATOR.show(); 
    break;

    case 'd':
    LED_INDICATOR.setPixelColor(0, LED_INDICATOR.Color(0, 0, 0));
    LED_INDICATOR.show(); 
    break;

    case 'e':
    LED_INDICATOR.setPixelColor(1, LED_INDICATOR.Color(0, 0, 255));
    LED_INDICATOR.show(); 
    break;
    
    case 'f':
    LED_INDICATOR.setPixelColor(1, LED_INDICATOR.Color(0, 255, 0));
    LED_INDICATOR.show(); 
    break;
    
    case 'g':
    LED_INDICATOR.setPixelColor(1, LED_INDICATOR.Color(255, 0, 0));
    LED_INDICATOR.show(); 
    break;

    case 'h':
    LED_INDICATOR.setPixelColor(1, LED_INDICATOR.Color(0, 0, 0));
    LED_INDICATOR.show(); 
    break;

    case 'i':
    LED_INDICATOR.setPixelColor(2, LED_INDICATOR.Color(0, 0, 255));
    LED_INDICATOR.show(); 
    break;

    case 'j':
    LED_INDICATOR.setPixelColor(2, LED_INDICATOR.Color(0, 255, 0));
    LED_INDICATOR.show(); 
    break;

    case 'k':
    LED_INDICATOR.setPixelColor(2, LED_INDICATOR.Color(255, 0, 0));
    LED_INDICATOR.show(); 
    break;

    case 'l':
    LED_INDICATOR.setPixelColor(2, LED_INDICATOR.Color(0, 0, 0));
    LED_INDICATOR.show(); 
    break;

    case 'm':
    LED_INDICATOR.setPixelColor(3, LED_INDICATOR.Color(0, 0, 255));
    LED_INDICATOR.show(); 
    break;

    case 'n':
    LED_INDICATOR.setPixelColor(3, LED_INDICATOR.Color(0, 255, 0));
    LED_INDICATOR.show(); 
    break;

    case 'o':
    LED_INDICATOR.setPixelColor(3, LED_INDICATOR.Color(255, 0, 0));
    LED_INDICATOR.show(); 
    break;

    case 'p':
    LED_INDICATOR.setPixelColor(3, LED_INDICATOR.Color(0, 0, 0));
    LED_INDICATOR.show(); 
    break;

    case 'q':
    LED_INDICATOR.setPixelColor(4, LED_INDICATOR.Color(0, 0, 255));
    LED_INDICATOR.show(); 
    break;

    case 'r':
    LED_INDICATOR.setPixelColor(4, LED_INDICATOR.Color(0, 255, 0));
    LED_INDICATOR.show(); 
    break;

    case 's':
    LED_INDICATOR.setPixelColor(4, LED_INDICATOR.Color(255, 0, 0));
    LED_INDICATOR.show(); 
    break;   

    case 't':
    LED_INDICATOR.setPixelColor(4, LED_INDICATOR.Color(0, 0, 0));
    LED_INDICATOR.show(); 
    break; 
    
    case 'u':
    LED_INDICATOR.setPixelColor(5, LED_INDICATOR.Color(0, 0, 255));
    LED_INDICATOR.show(); 
    break;

    case 'v':
    LED_INDICATOR.setPixelColor(5, LED_INDICATOR.Color(0, 255, 0));
    LED_INDICATOR.show(); 
    break;

    case 'w':
    LED_INDICATOR.setPixelColor(5, LED_INDICATOR.Color(255, 0, 0));
    LED_INDICATOR.show(); 
    break;

    case 'x':
    LED_INDICATOR.setPixelColor(5, LED_INDICATOR.Color(0, 0, 0));
    LED_INDICATOR.show(); 
    break;


    case 'y':
    LED_INDICATOR.setPixelColor(6, LED_INDICATOR.Color(0, 0, 255));
    LED_INDICATOR.show(); 
    break;

    case 'z':
    LED_INDICATOR.setPixelColor(6, LED_INDICATOR.Color(0, 255, 0));
    LED_INDICATOR.show(); 
    break;

    case 'A':
    LED_INDICATOR.setPixelColor(6, LED_INDICATOR.Color(255, 0, 0));
    LED_INDICATOR.show(); 
    break;

    case 'B':
    LED_INDICATOR.setPixelColor(6, LED_INDICATOR.Color(0, 0, 0));
    LED_INDICATOR.show(); 
    break;

    case 'C':
    LED_INDICATOR.setPixelColor(7, LED_INDICATOR.Color(0, 0, 255));
    LED_INDICATOR.show(); 
    break;

    case 'D':
    LED_INDICATOR.setPixelColor(7, LED_INDICATOR.Color(0, 255, 0));
    LED_INDICATOR.show(); 
    break;

    case 'E':
    LED_INDICATOR.setPixelColor(7, LED_INDICATOR.Color(255, 0, 0));
    LED_INDICATOR.show(); 
    break;

    case 'F':
    LED_INDICATOR.setPixelColor(7, LED_INDICATOR.Color(0, 0, 0));
    LED_INDICATOR.show(); 
    break;

    case 'G':
    LED_INDICATOR.setPixelColor(8, LED_INDICATOR.Color(0, 0, 255));
    LED_INDICATOR.show(); 
    break;

    case 'H':
    LED_INDICATOR.setPixelColor(8, LED_INDICATOR.Color(0, 255, 0));
    LED_INDICATOR.show(); 
    break;

    case 'I':
    LED_INDICATOR.setPixelColor(8, LED_INDICATOR.Color(255, 0, 0));
    LED_INDICATOR.show(); 
    break;

    case 'J':
    LED_INDICATOR.setPixelColor(8, LED_INDICATOR.Color(0, 0, 0));
    LED_INDICATOR.show(); 
    break;

    case 'K':
    LED_INDICATOR.setPixelColor(9, LED_INDICATOR.Color(0, 0, 255));
    LED_INDICATOR.show(); 
    break;

    case 'L':
    LED_INDICATOR.setPixelColor(9, LED_INDICATOR.Color(0, 255, 0));
    LED_INDICATOR.show(); 
    break;

    case 'M':
    LED_INDICATOR.setPixelColor(9, LED_INDICATOR.Color(255, 0, 0));
    LED_INDICATOR.show(); 
    break;

    case 'N':
    LED_INDICATOR.setPixelColor(9, LED_INDICATOR.Color(0, 0, 0));
    LED_INDICATOR.show(); 
    break;

    case 'O':
    LED_INDICATOR.setPixelColor(10, LED_INDICATOR.Color(0, 0, 255));
    LED_INDICATOR.show(); 
    break;

    case 'P':
    LED_INDICATOR.setPixelColor(10, LED_INDICATOR.Color(0, 255, 0));
    LED_INDICATOR.show(); 
    break;

    case 'Q':
    LED_INDICATOR.setPixelColor(10, LED_INDICATOR.Color(255, 0, 0));
    LED_INDICATOR.show(); 
    break;

    case 'R':
    LED_INDICATOR.setPixelColor(10, LED_INDICATOR.Color(0, 0, 0));
    LED_INDICATOR.show(); 
    break;

    case 'S':
    LED_INDICATOR.setPixelColor(11, LED_INDICATOR.Color(0, 0, 255));
    LED_INDICATOR.show(); 
    break;

    case 'T':
    LED_INDICATOR.setPixelColor(11, LED_INDICATOR.Color(0, 255, 0));
    LED_INDICATOR.show(); 
    break;

    case 'U':
    LED_INDICATOR.setPixelColor(11, LED_INDICATOR.Color(255, 0, 0));
    LED_INDICATOR.show(); 
    break;

    case 'V':
    LED_INDICATOR.setPixelColor(11, LED_INDICATOR.Color(0, 0, 0));
    LED_INDICATOR.show(); 
    break;

    case 'W':
    blink_ctl = true;
    break;

    case 'Y':
    blink_ctl = false;
    LED_INDICATOR.clear();      //desliga todos os LEDs
    LED_INDICATOR.show();

    break;
  }
}

void setup() 
{
  pinMode(DIN, OUTPUT);      //Configura o pino 6 como saída
  LED_INDICATOR.begin();             //Inicia o objeto "LED_INDICATOR"
  Serial.begin(baudrate);

  LED_INDICATOR.clear();      //desliga todos os LEDs
  LED_INDICATOR.show();
}
void loop() 
{
  yellow_blink();
  leds(); 
}