const int decpin = 6;

int latchPin = 8;
int clockPin = 12;
int dataPin1 = 9;
int dataPin2 = 11;
byte data;
byte dataArray[10];
int X=0;

void setup()
{
  pinMode(latchPin, OUTPUT);
  pinMode(decpin, INPUT);
  Serial.begin(9600);
}

void loop() {

if(decpin>3.3)
 {
  dataArray[0] = 0x00;
  dataArray[1] = 0x00;
  dataArray[2] = 0x80;
  dataArray[3] = 0xC0;
  dataArray[4] = 0xE0;
  dataArray[5] = 0xF0;
  dataArray[6] = 0xF8;
  dataArray[7] = 0xFC;
  dataArray[8] = 0xFE;
  dataArray[9] = 0xFF;
  delay(500);
  for (int j = 0; j < 10; j++)
    {
    data = dataArray[j];
    digitalWrite(latchPin, 0);
    shiftOut(dataPin2, clockPin, data);
    shiftOut(dataPin1, X,X);
    digitalWrite(latchPin, 1);
    delay(100);
    }
 }
 else if(decpin<3.3)
 //LEFT
{
  dataArray[0] = 0x00;
  dataArray[1] = 0x00;
  dataArray[2] = 0x01;
  dataArray[3] = 0x03;
  dataArray[4] = 0x07;
  dataArray[5] = 0x0F;
  dataArray[6] = 0x1F;
  dataArray[7] = 0x3F;
  dataArray[8] = 0x7F;
  dataArray[9] = 0xFF;
  delay(500);
  for (int K = 0; K < 10; K++)
  {
    data = dataArray[K];
    digitalWrite(latchPin, 0);
    shiftOut(dataPin1, clockPin, data);
    shiftOut(dataPin2, X,X);
    digitalWrite(latchPin, 1);
    delay(100);
  }
}
}
void shiftOut(int myDataPin1, int myClockPin, byte myDataOut) {
  int i=0;
  int pinState;
  pinMode(myClockPin, OUTPUT);
  pinMode(myDataPin1, OUTPUT);
  digitalWrite(myDataPin1, 0);
  digitalWrite(myClockPin, 0);

  for (i=8; i>=0; i--)  {
    digitalWrite(myClockPin, 0);
     if ( myDataOut & (1<<i) ) {
      pinState= 1;
    }
    else {
      pinState= 0;
    }
    digitalWrite(myDataPin1, pinState);
    digitalWrite(myClockPin, 1);
    //digitalWrite(myDataPin1, 0);
  }
    digitalWrite(myClockPin, 0);
}