#include <TFT_eSPI.h>
#include <SPI.h>       // this is needed for display

// The display also uses hardware SPI, plus #9 & #10
#define TFT_CS 5
#define TFT_DC 4
#define TFT_MOSI 23
#define TFT_SCLK 18

TFT_eSPI tft = TFT_eSPI(); // Invoke custom library with default width and height

void setup(void) {
  Serial.begin (9600);
  Serial.print ("ST7789 TFT Bitmap Test");

  tft.begin ();                                 // initialize a ST7789 chip
  //tft.setSwapBytes (true);                      // swap the byte order for pushImage() - corrects endianness
  tft.setRotation(1);
  tft.fillScreen (TFT_BLUE);
  tft.setTextColor (TFT_WHITE);
  tft.print ("Thai Font ภาษาไทย");
  delay(2000);
}

void loop() {
  // โปรแกรมหลัก
}