Serial.readBytesUntil('\n',input,100);
    int i=0;
    //001011011;D1;D2\n

    for(i=0;i<8;i++)
    {
        if(input[i]=='1')
        {
            a |= (1 << i);
             //Serial.println(a,DEC);
             // Serial.println(a,BIN);
            // Serial.println(a,HEX);
        }
        if(input[i]=='0')
        {
           // Serial.println(a,BIN);
            a &= ~( 1 << i);
        }
    }

  Serial.println(input);
  Serial.print("Ports: ");
  Serial.println(a,DEC);
  Serial.println(a,BIN);
  Serial.println(a,HEX);
  Serial.println("PortB:");
  b=(a >> 2) | (a << (8 - 2));
  b=b&DDRB;
  Serial.println(b,DEC);
  Serial.println(b,BIN);
  Serial.println(b,HEX);