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/*
Below is a simple example of using an IPS 1.54 Inch Display with an SPI ST7789 Chipset. This will use the Adafruit_ST7789 library to control the display. In this example, it assumes the following connections:
 
SCLK => GPIO18
MOSI => GPIO23
CS => GPIO5
DC => GPIO16
RST => GPIO17
BLK => GPIO19
Please replace the pin definitions with your actual hardware connections. The example code will display the text "Hello, world!" in white and "from ESP32!" in red on the display.
*/
 
#include <Adafruit_GFX.h>
#include <Adafruit_ST7789.h>
#include <SPI.h>
 
#define TFT_CLK 18  // SCLK
#define TFT_MOSI 23 // MOSI
#define TFT_CS   5  // CS
#define TFT_DC   16 // DC
#define TFT_RST  17 // RST
#define TFT_BLK  19 // BLK
 
Adafruit_ST7789 tft = Adafruit_ST7789(TFT_CS, TFT_DC, TFT_RST, TFT_CLK, TFT_MOSI, -1);
 
void setup() {
  pinMode(TFT_BLK, OUTPUT);
  digitalWrite(TFT_BLK, HIGH); // turn backlight on
  tft.init(240, 240, SPI_MODE2); // Init ST7789 240x240
  tft.setRotation(2);
  
  tft.fillScreen(ST77XX_BLACK);
  delay(500);
 
  // text display tests
  tft.setCursor(0, 0);
  tft.setTextColor(ST77XX_WHITE);
  tft.setTextSize(1);
  tft.println("Hello, world!");
  delay(500);
 
  tft.setTextColor(ST77XX_RED);
  tft.setTextSize(2);
  tft.println("from ESP32!");
}
 
void loop() {
  // put your main code here, to run repeatedly:
}