#include <Wire.h>
#define LCD_ADRS 0x3E
char moji[]="by Wiseman..123*";

//SCL = A5:LCD No.2  SDA=A4:LCD No.3

void setup() {
  Wire.begin();
  init_LCD();
}

void loop() {
  for(int i=0; i<16; i++) {
    writeData(moji[i]);
  }
  writeCommand(0x40+0x80);   //2Line top
  for(int i=0; i<16; i++) {
    writeData(i+0xb1);       //0xb1=(katakana)a
  }
  while(1){}
}

void writeData(byte t_data) {
  Wire.beginTransmission(LCD_ADRS);
  Wire.write(0x40);
  Wire.write(t_data);
  Wire.endTransmission();
  delay(1);
}

void writeCommand(byte t_command){
  Wire.beginTransmission(LCD_ADRS);
  Wire.write(0x00);
  Wire.write(t_command);
  Wire.endTransmission();
  delay(10);
}

void init_LCD() {
  delay(100);
  writeCommand(0x38);
  delay(20);
  writeCommand(0x39);
  delay(20);
  writeCommand(0x14);
  delay(20);
  writeCommand(0x73);
  delay(20);
  writeCommand(0x56);  // 3.3V
  //writeCommand(0x52);  // 5V
  delay(20);
  writeCommand(0x6C);
  delay(20);
  writeCommand(0x38);
  delay(20);
  writeCommand(0x01);
  delay(20);
  writeCommand(0x0C);
  delay(20);
}