void setup() {
  // put your setup code here, to run once:
 volatile char *dir;
   dir=0x30;   //  for  display 1 portf direction register 
   *dir=0xff;  // set all pin off
  

}

void loop() {
  // put your main code here, to run repeatedly:
 volatile char *out;
  out = 0x31; // for display 1 data register 
  *out= 0x5b;   // output value is 2

}