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Mounting the circuitPictureThis project is fairly straightforward to set up so make sure you start by unplugging any power source feeding into your Arduino to prevent any shorts while wiring. Firstly, take a jumper wire and connect the GND pin on the display to any of your Arduino's GND pins and follow that up by connecting the VCC pin from the display to the 3v3 pin of your Arduino to supply a +3.3 volt power supply to the module. +5v will have a possibility to damage the display. Now, for the i2c connections, hook up the SCL (Serial Clock) pin of the display to A13 (analog pin 13) on the Arduino and the SDA (Serial Data) pin to A11 (analog pin 11). For the RES (Reset) pin, connect it up to A8 (analog pin 8) as well as the DC (Data/Command) pin to A9 (analog pin 9). The hardware part is finally done!

Arduino 1.3" 240x240 IPS TFT Display Module Project Code

Please download the code library from the link given before compiling and uploading the program: https://platformio.org/lib/show/12/Adafruit%20ST7735%20and%20ST7789%20Library

#include <Adafruit_GFX.h>    // Core graphics library
#include <Adafruit_ST7789.h> // Hardware-specific library for ST7789
#include <SPI.h>             // Arduino SPI library
 
// ST7789 TFT module connections
#define TFT_CS     10
#define TFT_RST    8  // define reset pin, or set to -1 and connect to Arduino RESET pin
#define TFT_DC     9  // define data/command pin
 
// Initialize Adafruit ST7789 TFT library
Adafruit_ST7789 tft = Adafruit_ST7789(TFT_CS, TFT_DC, TFT_RST);
float p = 3.1415926;
 
void setup(void) {
  Serial.begin(9600);
  Serial.print(F("Hello! ST7789 TFT Test"));
 
  // if the display has CS pin try with SPI_MODE0
  tft.init(240, 240, SPI_MODE2);    // Init ST7789 display 240x240 pixel
  // if the screen is flipped, remove this command
  tft.setRotation(2);
  Serial.println(F("Initialized"));
  uint16_t time = millis();
  tft.fillScreen(ST77XX_BLACK);
  time = millis() - time;
  delay(500);
 
  // large block of text
  tft.fillScreen(ST77XX_BLACK);
  testdrawtext("Lorem ipsum dolor sit amet, consectetur adipiscing elit. Curabitur adipiscing ante sed nibh tincidunt feugiat. Maecenas enim massa, fringilla sed malesuada et, malesuada sit amet turpis. Sed porttitor neque ut ante pretium vitae malesuada nunc bibendum. Nullam aliquet ultrices massa eu hendrerit. Ut sed nisi lorem. In vestibulum purus a tortor imperdiet posuere. ", ST77XX_WHITE);
  delay(1000);
 
  // tft print function!
  tftPrintTest();
  delay(4000);
 
  // a single pixel
  tft.drawPixel(tft.width()/2, tft.height()/2, ST77XX_GREEN);
  delay(500);
 
  // line draw test
  testlines(ST77XX_YELLOW);
  delay(500);
 
  // optimized lines
  testfastlines(ST77XX_RED, ST77XX_BLUE);
  delay(500);
 
  testdrawrects(ST77XX_GREEN);
  delay(500);
 
  testfillrects(ST77XX_YELLOW, ST77XX_MAGENTA);
  delay(500);
 
  tft.fillScreen(ST77XX_BLACK);
  testfillcircles(10, ST77XX_BLUE);
  testdrawcircles(10, ST77XX_WHITE);
  delay(500);
 
  testroundrects();
  delay(500);
 
  testtriangles();
  delay(500);
 
  mediabuttons();
  delay(500);
 
  Serial.println("done");
  delay(1000);
}
 
void loop() {
  tft.invertDisplay(true);
  delay(500);
  tft.invertDisplay(false);
  delay(500);
}
 
void testlines(uint16_t color) {
  tft.fillScreen(ST77XX_BLACK);
  for (int16_t x=0; x < tft.width(); x+=6) {
    tft.drawLine(0, 0, x, tft.height()-1, color);
    delay(0);
  }
  for (int16_t y=0; y < tft.height(); y+=6) {
    tft.drawLine(0, 0, tft.width()-1, y, color);
    delay(0);
  }
 
  tft.fillScreen(ST77XX_BLACK);
  for (int16_t x=0; x < tft.width(); x+=6) {
    tft.drawLine(tft.width()-1, 0, x, tft.height()-1, color);
    delay(0);
  }
  for (int16_t y=0; y < tft.height(); y+=6) {
    tft.drawLine(tft.width()-1, 0, 0, y, color);
    delay(0);
  }
 
  tft.fillScreen(ST77XX_BLACK);
  for (int16_t x=0; x < tft.width(); x+=6) {
    tft.drawLine(0, tft.height()-1, x, 0, color);
    delay(0);
  }
  for (int16_t y=0; y < tft.height();...
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