Example of using PROGMEM and making image transition by delay

OLED_PROGMEM_Example1.cpp

if(millis()-lastCheckEPOCH > 200){
  for(i = 0; i < 128; i++)
    bitmapBuffer[i] = pgm_read_byte(&sawasdee[(rowDisplay*128)+i]);
  OLED.LED_PrintBMP(0, rowDisplay, 127, rowDisplay, bitmapBuffer);
  lastCheckEPOCH = millis();
  Serial.print("rowDisplay : "); Serial.println(rowDisplay);
  rowDisplay++;
}