雙位數七段顯示器

dea813033

各位大大我是剛使用arduino不久新手
想要請問一下
雙位數的七段顯示器加595IC的程式怎麼設計

const byte dataPin = 5;   
const byte latchPin = 6;  
const byte clockPin = 7;   


byte seven_seg_LED[10] = {  // 記錄0~9的七段數字
  B01111110,
  B00110000,
  B01101101,
  B01111001,
  B00110011,
  B01011011,
  B01011111,
  B01110000,
  B01111111,
  B01110011
};

void setup() {  
  pinMode(dataPin, OUTPUT);
  pinMode(latchPin, OUTPUT);
  pinMode(clockPin, OUTPUT);


}

void sevenSegWrite(byte LED) {
    digitalWrite(latchPin, LOW);
    shiftOut(dataPin, clockPin, LSBFIRST, seven_seg_LED[LED]);
    digitalWrite(latchPin, HIGH);
   }


請問大大上面有錯誤嗎????????