#include <LedControl.h>

LedControl lc = LedControl(10, 8, 9, 4);

// From https://xantorohara.github.io/led-matrix-editor/
const uint8_t LETTERS[][8] = {
{
  0b00000000,
  0b00000000,
  0b00000000,
  0b00000000,
  0b01111110,
  0b00000000,
  0b00000000,
  0b00000000
},{
  0b00000000,
  0b00000000,
  0b00000000,
  0b00000000,
  0b00000000,
  0b00000000,
  0b00011000,
  0b00011000
},{
  0b00000000,
  0b00000000,
  0b00000000,
  0b00000000,
  0b00000000,
  0b00000000,
  0b00000000,
  0b00000000
}, {
  0b00111000,
  0b01000100,
  0b01000100,
  0b01000100,
  0b01000100,
  0b01000100,
  0b01000100,
  0b00111000
},{
  0b00010000,
  0b00110000,
  0b00010000,
  0b00010000,
  0b00010000,
  0b00010000,
  0b00010000,
  0b00111000
},{
  0b00111000,
  0b01000100,
  0b00000100,
  0b00000100,
  0b00001000,
  0b00010000,
  0b00100000,
  0b01111100
},{
  0b00111000,
  0b01000100,
  0b00000100,
  0b00011000,
  0b00000100,
  0b00000100,
  0b01000100,
  0b00111000
},{
  0b00000100,
  0b00001100,
  0b00010100,
  0b00100100,
  0b01000100,
  0b01111100,
  0b00000100,
  0b00000100
},{
  0b01111100,
  0b01000000,
  0b01000000,
  0b01111000,
  0b00000100,
  0b00000100,
  0b01000100,
  0b00111000
},{
  0b00111000,
  0b01000100,
  0b01000000,
  0b01111000,
  0b01000100,
  0b01000100,
  0b01000100,
  0b00111000
},{
  0b01111100,
  0b00000100,
  0b00000100,
  0b00001000,
  0b00010000,
  0b00100000,
  0b00100000,
  0b00100000
},{
  0b00111000,
  0b01000100,
  0b01000100,
  0b00111000,
  0b01000100,
  0b01000100,
  0b01000100,
  0b00111000
},{
  0b00111000,
  0b01000100,
  0b01000100,
  0b01000100,
  0b00111100,
  0b00000100,
  0b01000100,
  0b00111000
},{
  0b01100000,
  0b11110001,
  0b00000111,
  0b01100001,
  0b10010111,
  0b01100001,
  0b00001000,
  0b00001111
},{
  0b00000000,
  0b01110101,
  0b00100101,
  0b00100111,
  0b01010101,
  0b00000101,
  0b00000101,
  0b00000000
},{
  0b00000000,
  0b00111010,
  0b00001010,
  0b00001010,
  0b00001010,
  0b00010010,
  0b00100010,
  0b00000000
},{
  0b00111000,
  0b01000100,
  0b00111000,
  0b00010000,
  0b01111100,
  0b00000000,
  0b00100000,
  0b00111100
},{
  0b00000000,
  0b01000111,
  0b10101000,
  0b01001000,
  0b00001000,
  0b00001000,
  0b00000111,
  0b00000000
}};


char words[100]; // :현 ;재 <기 =온 >('C) /(공백)
int wlen;

float temp,avgTemp=0;
int i, k, j;

const float BETA = 3950; // should match the Beta Coefficient of the thermistor

void setup() 
{
  lc.shutdown(0, false);
  lc.setIntensity(0, 15);
  lc.clearDisplay(0);
}

void loop() 
{
  temp = 1.0/(log(1/(1023. / analogRead(A0) - 1)) / BETA + 1.0 / 298.15) - 273.15;
  int u=(int)temp;
  int l=(int)abs((temp-(int)temp)*10);
  sprintf(words,":;<=%d.%d>/",u,l);
  wlen=strlen(words);

  for (k=0;k<wlen;k++) {
    for (j=0;j<8;j++) {
      for (i=0;i<8;i++) {
        lc.setRow(0,i,(LETTERS[words[(k+wlen)%wlen]-'-'][i]<<j)|(LETTERS[words[(k+wlen+1)%wlen]-'-'][i]>>8-j));
        lc.setRow(1,i,(LETTERS[words[(k+wlen-1)%wlen]-'-'][i]<<j)|(LETTERS[words[(k+wlen)%wlen]-'-'][i]>>8-j));
        lc.setRow(2,i,(LETTERS[words[(k+wlen-2)%wlen]-'-'][i]<<j)|(LETTERS[words[(k+wlen-1)%wlen]-'-'][i]>>8-j));
        lc.setRow(3,i,(LETTERS[words[(k+wlen-3)%wlen]-'-'][i]<<j)|(LETTERS[words[(k+wlen-2)%wlen]-'-'][i]>>8-j));
      }
      delay(100);
    }
  }
 
}