int DI = 12;
int RW = 11;
int DB[] = {3, 4, 5, 6, 7, 8, 9, 10};//Use an array to define the pins needed by the bus
int Enable = 2;

void LcdCommandWrite(int value) {
  // Define all pins
  int i = 0;
  for (i = DB[0]; i <= DI; i++) //Bus assignment
  {
    digitalWrite(i, value & 01); //Because the 1602 liquid crystal signal recognition is D7-D0 (not D0-D7), here is used to reverse the signal.
    value >>= 1;
  }
  digitalWrite(Enable, LOW);
  delayMicroseconds(1);
  digitalWrite(Enable, HIGH);
  delayMicroseconds(1);  // 延时1ms
  digitalWrite(Enable, LOW);
  delayMicroseconds(1);  // 延时1ms
}

void LcdDataWrite(int value) {
  // Define all pins
  int i = 0;
  digitalWrite(DI, HIGH);
  digitalWrite(RW, LOW);
  for (i = DB[0]; i <= DB[7]; i++) {
    digitalWrite(i, value & 01);
    value >>= 1;
  }
  digitalWrite(Enable, LOW);
  delayMicroseconds(1);
  digitalWrite(Enable, HIGH);
  delayMicroseconds(1);
  digitalWrite(Enable, LOW);
  delayMicroseconds(1);  //Delay 1ms
}

void setup (void) {
  int i = 0;
  for (i = Enable; i <= DI; i++) {
    pinMode(i, OUTPUT);
  }
  delay(100);
  // After a short pause, LCD
  // For LCD control needs
  LcdCommandWrite(0x38);  // Set to 8-bit interface, 2 line display, 5x7 text size
  delay(64);
  LcdCommandWrite(0x38);  // Set to 8-bit interface, 2 line display, 5x7 text size
  delay(50);
  LcdCommandWrite(0x38);  //Set to 8-bit interface, 2 line display, 5x7 text size
  delay(20);
  LcdCommandWrite(0x06);  // Input mode setting
  // Auto increment, no display shift
  delay(20);
  LcdCommandWrite(0x0E);  // Display settings
  // Turn on the display, the cursor shows, no flicker
  delay(20);
  LcdCommandWrite(0x01);  // The screen is empty, the cursor position is zero
  delay(100);
  LcdCommandWrite(0x80);  // Display settings
  // Turn on the display, the cursor shows, no flicker
  delay(20);
}

void loop (void) {
  LcdCommandWrite(0x01);  // The screen is empty, the cursor position is zero
  delay(10);

  /*
   * 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6
   *     B u o n e   F e s t e   e
   *   F e l i c e   2   0   1   9
  */
  LcdDataWrite(' ');
  LcdDataWrite(' ');
  LcdDataWrite('B');
  LcdDataWrite('u');
  LcdDataWrite('o');
  LcdDataWrite('n');
  LcdDataWrite('e');
  LcdDataWrite(' ');
  LcdDataWrite('F');
  LcdDataWrite('e');
  LcdDataWrite('s');
  LcdDataWrite('t');
  LcdDataWrite('e');
  LcdDataWrite(' ');
  LcdDataWrite('e');
  LcdDataWrite(' ');
  delay(10);
  LcdCommandWrite(0xc0); // Defines the cursor position as second rows and second positions
  delay(10);
  LcdDataWrite(' ');
  LcdDataWrite('F');
  LcdDataWrite('e');
  LcdDataWrite('l');
  LcdDataWrite('i');
  LcdDataWrite('c');
  LcdDataWrite('e');
  LcdDataWrite(' ');
  LcdDataWrite('2');
  LcdDataWrite(' ');
  LcdDataWrite('0');
  LcdDataWrite(' ');
  LcdDataWrite('1');
  LcdDataWrite(' ');
  LcdDataWrite('9');
  LcdDataWrite(' ');
  delay(5000);
}