// Write the disable protection code, to allow writing
void disable_protection()
{

  turn_on(OE);
  turn_on(WE);
  turn_off(CE);
  io_output();
  s_byte(0xAA, 0x5555);
   turn_off(CE);
  s_byte(0x55, 0x2AAA);
   turn_off(CE);
  s_byte(0x80, 0x5555);
   turn_off(CE);
  s_byte(0xAA, 0x5555);
   turn_off(CE);
  s_byte(0x55, 0x2AAA);
   turn_off(CE);
  s_byte(0x20, 0x5555);
  io_input();
  turn_on(CE);
  Serial.print("The protection has been removed");

}
// This is a special function, which allows writing a byte without checking if the write is done yet.
void s_byte(uint8_t data, uint16_t addr)
{
  // When adding the third shift register, this code will be changed
  aanstaanden = addr;
  shift_a_byte(aanstaanden);
  put_io(data);


  turn_off(WE);
  delayMicroseconds(1);
  turn_on(WE);
  turn_on(CE);

}