#include <Timer.h>
#define LED7_L 7
#define COM_L 4
const int SEG[LED7_L]={6,7,8,9,10,11,12};
const int com[COM_L]={2,3,4,5};
const byte Number[19]={B00111111,B00000110,B01011011,B01001111,B01100110,B01101101,B01111101,B00000111,B01111111,B01101111,B1011111,B01111100,B01011000,B01011110,B01111011,B01110001,B00111111,B00000110,B01011011};
const int DH = 256;
int c,lc,rc;
Timer t1,t2,t3;

void setup() {
  int i;
  for(i=0;i<LED7_L;i++) pinMode(SEG[i],OUTPUT);
  for(i=0;i<COM_L;i++) pinMode(com[i],OUTPUT);
  c = lc = rc =0;
  t1.every(200, Rt); // 以oscillate設定每幾毫秒切換一次狀態
  t2.every(100, Lt); // 以oscillate設定每幾毫秒切換一次狀態
  t3.every(1000,Ct ); // 以oscillate設定每幾毫秒切換一次狀態
}

void loop() {
  int i,j,k,u;
  for(i=0;i<COM_L;i++){
    for(k=0;k<COM_L;k++){
      digitalWrite(com[k],1);
    }
    digitalWrite(com[i],0);
    switch(i){
      case 0:
        for(j=0;j<LED7_L;j++) digitalWrite(SEG[j],!(j == rc));
        break;
      case 3:
        for(j=0;j<LED7_L;j++) digitalWrite(SEG[j],!(j == lc));
        break;
      default:
        if(i==1) u=c%16; else u=c/16;
        for(j=0,k=1;j<LED7_L;j++, k<<=1) 
          digitalWrite(SEG[j],!(k & Number[u]));
    }
    delay(2);
  }
  t1.update();t2.update();t3.update();
}

void Ct(){
  c=(c+1) % DH;  
}

void Lt(){
  lc = (lc+1) % (LED7_L-1);
}

void Rt(){
  rc = (rc-2+LED7_L) % (LED7_L-1);
}