ArduinoSpectrumProcessing.ino

#include "FastLED.h"
#define NUM_LEDS 128
const int dataline = 4;
CRGB leds[NUM_LEDS];
int array[16] =    {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
int arraytemp[16] = {1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1};
int i,j,k,r;

void coloumn(uint8_t x, int value) {
  if (value < 5) {
    for (uint8_t y = 0; y < value; y++){
      leds[XY(x,y)] = CRGB::Green;
    }
    FastLED.show();
    for (uint8_t y = 0; y < value; y++){
      leds[XY(x,y)] = CRGB::Black;
    }
  }
  else {
    if (value < 8) {
      for (uint8_t y = 0; y < 5; y++){
        leds[XY(x,y)] = CRGB::Green;
      }
      for (uint8_t y = 5; y < value; y++){
        leds[XY(x,y)] = CRGB::Orange;
      }
      FastLED.show();
      for (uint8_t y = 0; y < value; y++){
        leds[XY(x,y)] = CRGB::Black;
      }
    }
    else {
      for (uint8_t y = 0; y < 5; y++){
        leds[XY(x,y)] = CRGB::Green;
      }
      for (uint8_t y = 5; y < 8; y++){
        leds[XY(x,y)] = CRGB::Orange;
      }
      leds[XY(x,8)] = CRGB::Red;
      FastLED.show();
      for (uint8_t y = 0; y < value; y++){
        leds[XY(x,y)] = CRGB::Black;
      }
    }
  } 
}

int XY(int x, int y) {
     int matrix[8][16];
    int szam = 0;
    int sor = 0;
    for (int i = 0; i < 4; i++){
        int f_szam = szam + 15;
        for (int j = 0; j < 16; j++){
            matrix[sor][j] = f_szam;
            f_szam--;
        }
        sor++;
        szam = szam + 16;
        for (int j = 0; j < 16; j++){
            matrix[sor][j] = szam;
            szam++;
        }
        sor++;
    }
    return matrix[y][x];
}

void setup() {
  Serial.begin(500000); 
  LEDS.addLeds<PL9823, dataline>(leds, NUM_LEDS);
         
  for (int p=0;p< NUM_LEDS;p++){
    leds[p] = CRGB::Black;
    FastLED.show();  
  }
}
  
void loop(){
  //protocol expects data in format of 17 bytes
  //(xff) as a marker to ensure proper synchronization always
  /*if (!Serial.available()>=17) {
    for(r=0; r<17; r++)
      array[r]=0;
  }
  */
    
  if(Serial.read() == 0xff){
      for(i=0; i<16; i++){
        array[i] = Serial.read();    
      }
      //switch case statement
      for(j=0; j<16; j++){   
       if(array[j]!= arraytemp[j]){  
         switch (array[j]) {
          case 0:
            coloumn(j,0);
            break;
          case 1:
            coloumn(j,1);
            break;
          case 2:
            coloumn(j,2);
            break;      
          case 3:
            coloumn(j,3);
            break;
          case 4:
            coloumn(j,4);
            break;
          case 5:
            coloumn(j,5);
            break;
          case 6:
            coloumn(j,6);
            break;
          case 7:
            coloumn(j,7);
            break;
          case 8:
            coloumn(j,8);
            break;
        }  
        arraytemp[j] = array[j];
      }    
    } 
  }
  delay(1);
}