arduino

#include <SPI.h>
#include <DMD.h>
#include <TimerOne.h>
#include "SystemFont5x7.h"
#include "Arial_black_16.h"

//Fire up the DMD library as dmd
#define DISPLAYS_ACROSS 3
#define DISPLAYS_DOWN 1
DMD dmd(DISPLAYS_ACROSS, DISPLAYS_DOWN);

void ScanDMD()
{
 dmd.scanDisplayBySPI();
}


void setup(void)
{
  Timer1.initialize( 5000 );
  Timer1.attachInterrupt( ScanDMD );
  dmd.clearScreen( true );

  Serial.begin(9600);
}


void loop(void)
{
  dmd.clearScreen( true );
 // dmd.selectFont(Arial_Black_16);
  dmd.selectFont(System5x7);

char teks[] = "Scrolling Text";
int lebarTeks = 0;
for (int i = 0; i < sizeof(teks)+1; i++) {
  lebarTeks += dmd.charWidth(teks[i]) + 1;
}

dmd.drawBox(  0,  0, (32*DISPLAYS_ACROSS)-1, (16*DISPLAYS_DOWN)-1, GRAPHICS_NORMAL );
int i = 0;
while(true) {
  dmd.drawString ((lebarTeks+10)-i, 3, teks, sizeof(teks), GRAPHICS_NORMAL);
  dmd.drawBox(  0,  0, (32*DISPLAYS_ACROSS)-1, (16*DISPLAYS_DOWN)-1, GRAPHICS_NORMAL );
  Serial.println(i);
  delay(100);
  if(i >= 180) {
    i = 0;
  }
  i++;
}

}