int pattern = 0;   // for incoming serial data
const int BUFFER_SIZE = 2;
char buf[BUFFER_SIZE];

void setup(){
  Serial.begin(9600);     // opens serial port, sets data rate to 9600 bps
  pinMode(2, OUTPUT);
  pinMode(3, OUTPUT);
  pinMode(4, OUTPUT);
  pinMode(5, OUTPUT);
  pinMode(6, OUTPUT);
  pinMode(7, OUTPUT);
  pinMode(8, OUTPUT);
  pinMode(9, OUTPUT);
}

void loop(){
  // check if data is available
  // Serial.print(0);
  if (Serial.available() > 0) {
    // read the incoming bytes:
    int rlen = Serial.readBytes(buf, BUFFER_SIZE);

    // prints the received data
    for(int i = 0; i < rlen; i++)
      //Serial.print(buf[i-1]);
      pattern = buf[i-1];
      Serial.print(pattern, DEC);
      int pattern_bit1 = (pattern & B00000001);
      int pattern_bit2 = (pattern & B00000010);
      int pattern_bit3 = (pattern & B00000100);
      int pattern_bit4 = (pattern & B00001000);
      int pattern_bit5 = (pattern & B00010000);
      int pattern_bit6 = (pattern & B00100000);
      int pattern_bit7 = (pattern & B01000000);
      int pattern_bit8 = (pattern & B10000000);
      digitalWrite(2, pattern_bit1);
      digitalWrite(3, pattern_bit2);
      digitalWrite(4, pattern_bit3);
      digitalWrite(5, pattern_bit4);
      digitalWrite(6, pattern_bit5);
      digitalWrite(7, pattern_bit6);
      digitalWrite(8, pattern_bit7);
      digitalWrite(9, pattern_bit8);
  }
}