Tulisan India Oled SSD1306 I2C Pakai Library u8g2

/*
   Copyright (c) 2016, olikraus@gmail.com
  All rights reserved.
*/

#include <Arduino.h>
#include <U8g2lib.h>
#include <Wire.h>

U8G2_SSD1306_128X64_NONAME_1_HW_I2C u8g2(U8G2_R0, /* reset=*/ U8X8_PIN_NONE);

/*
  draw unicode for https://en.wikipedia.org/wiki/Devanagari
  Adjust the glyph position as good as possible for the unicode font.

  Report missing or wrong glyph adjustments here:
  https://github.com/olikraus/u8g2/issues/584

  precondition:
    u8g2_SetFont(&u8g2, u8g2_font_unifont_t_devanagari);
    u8g2_SetFontMode(&u8g2, 1);
    Font direction command is NOT supported
*/
u8g2_uint_t u8g2_draw_unifont_devanagari(u8g2_uint_t x, u8g2_uint_t y, const char *str)
{
  uint16_t e;
  u8g2_uint_t delta, sum;
  u8g2.getU8g2()->u8x8.next_cb = u8x8_utf8_next;
  u8x8_utf8_init(u8g2.getU8x8());
  sum = 0;
  for(;;)
  {
    e = u8g2.getU8g2()->u8x8.next_cb(u8g2.getU8x8(), (uint8_t)*str);
    if ( e == 0x0ffff )
      break;
    str++;
    if ( e != 0x0fffe )
    {

      switch(e)
      {
	/* many more glyphs and corrections are missing */
	/* please report to https://github.com/olikraus/u8g2/issues/584 */
	case 0x093e: x-= 12; break;
	case 0x093f: x-= 19; break;
	case 0x0941: x-= 10; y+=3; break;		// move down
	case 0x0947: x-= 12; break;
	case 0x094d: x-= 10; break;
      }
      delta = u8g2.drawGlyph(x, y, e);
      switch(e)
      {
	case 0x0941: x-= 3; y -=3; break;		// revert the y shift
	case 0x094d: x-= 8; break;
      }
      x += delta;
      sum += delta;
    }
  }
  return sum;
}



void setup(void) {
  u8g2.begin();
}

void loop(void) {

  /* Set the unifont with Devanagari glyphs */
  u8g2.setFont(u8g2_font_unifont_t_devanagari);

  /* Important: do not write background pixel */
  u8g2.setFontMode(1);

  u8g2.firstPage();
  do {
    u8g2_draw_unifont_devanagari(0,24,"नमस्ते दुनिया");	// Hello World
  } while ( u8g2.nextPage() );
}