void setup(){
  volatile int8_t *portg;
  portg = 0x33;
  *portg = 0xff;
}
void loop(){
  volatile int8_t *gpins;
  gpins = 0x34;
  *gpins = 0b000000;
  for(volatile int32_t count = 0; count<=70000; count++);
  *gpins = 0b100000;
  for(volatile int32_t count = 0; count<=70000; count++);
}