Hello,
According to the link you posted your board is not a 2432S024C but a 2432S024R instead, I just bought the same board and the touchscreen is Resistive not Capacitive.
I fiddled it it for a few hours and got both the display and tough to work fine. Hope you still have them in your parts bin so you can put them to good use.
Here is what I came up with:
User_Setup.h
// User defined information reported by "Read_User_Setup" test & diagnostics example
#define USER_SETUP_INFO "User_Setup"
#define ST7789_DRIVER
// #define ILI9341_DRIVER // Generic driver for common displays
#define TFT_WIDTH 240
#define TFT_HEIGHT 320 // ST7789 240 x 320
// #define TFT_RGB_ORDER TFT_RGB // Colour order Red-Green-Blue
#define TFT_RGB_ORDER TFT_BGR // Colour order Blue-Green-Red
// #define TFT_INVERSION_ON
#define TFT_INVERSION_OFF
#define ESP32_DMA
#define TFT_BL 27 // LED back-light control pin
#define TFT_BACKLIGHT_ON HIGH // Level to turn ON back-light (HIGH or LOW)
#define TFT_MISO 12
#define TFT_MOSI 13 // In some display driver board, it might be written as "SDA" and so on.
#define TFT_SCLK 14
#define TFT_CS 15 // Chip select control pin
#define TFT_DC 2 // Data Command control pin
#define TFT_RST -1 // Reset pin (could connect to Arduino RESET pin)
#define TOUCH_CS 33 // Chip select pin (T_CS) of touch screen
#define USE_HSPI_PORT
#define LOAD_GLCD // Font 1. Original Adafruit 8 pixel font needs ~1820 bytes in FLASH
#define LOAD_FONT2 // Font 2. Small 16 pixel high font, needs ~3534 bytes in FLASH, 96 characters
#define LOAD_FONT4 // Font 4. Medium 26 pixel high font, needs ~5848 bytes in FLASH, 96 characters
#define LOAD_FONT6 // Font 6. Large 48 pixel font, needs ~2666 bytes in FLASH, only characters 1234567890:-.apm
#define LOAD_FONT7 // Font 7. 7 segment 48 pixel font, needs ~2438 bytes in FLASH, only characters 1234567890:-.
#define LOAD_FONT8 // Font 8. Large 75 pixel font needs ~3256 bytes in FLASH, only characters 1234567890:-.
//#define LOAD_FONT8N // Font 8. Alternative to Font 8 above, slightly narrower, so 3 digits fit a 160 pixel TFT
#define LOAD_GFXFF // FreeFonts. Include access to the 48 Adafruit_GFX free fonts FF1 to FF48 and custom fonts
#define SMOOTH_FONT
#define SPI_FREQUENCY 80000000
// Optional reduced SPI frequency for reading TFT
#define SPI_READ_FREQUENCY 80000000
// The XPT2046 requires a lower SPI clock rate of 2.5MHz so we define that here:
#define SPI_TOUCH_FREQUENCY 2500000 //2500000
I modified this code from Random Nerd Tutorials for the CYD to test the touch feature:
/* Rui Santos & Sara Santos - Random Nerd Tutorials
THIS EXAMPLE WAS TESTED WITH THE FOLLOWING HARDWARE:
1) ESP32-2432S028R 2.8 inch 240×320 also known as the Cheap Yellow Display (CYD): https://makeradvisor.com/tools/cyd-cheap-yellow-display-esp32-2432s028r/
SET UP INSTRUCTIONS: https://RandomNerdTutorials.com/cyd/
2) REGULAR ESP32 Dev Board + 2.8 inch 240x320 TFT Display: https://makeradvisor.com/tools/2-8-inch-ili9341-tft-240x320/ and https://makeradvisor.com/tools/esp32-dev-board-wi-fi-bluetooth/
SET UP INSTRUCTIONS: https://RandomNerdTutorials.com/esp32-tft/
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files.
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
*/
#include <SPI.h>
/* Install the "TFT_eSPI" lbirary by Bodmer to interface with the TFT Display - https://github.com/Bodmer/TFT_eSPI
*** IMPORTANT: User_Config.h available on the internet will probably NOT work with the examples available at Random Nerd Tutorials ***
*** YOU MUST USE THE User_Config.h FILE PROVIDED IN THE LINK BELOW IN ORDER TO USE THE EXAMPLES FROM RANDOM NERD TUTORIALS ***
FULL INSTRUCTIONS AVAILABLE ON HOW CONFIGURE THE LIBRARY: https://RandomNerdTutorials.com/cyd/ or https://RandomNerdTutorials.com/esp32-tft/ */
#include <TFT_eSPI.h>
// Install the "XPT2046_Touchscreen" library by Paul Stoffregen to use the Touchscreen - https://github.com/PaulStoffregen/XPT2046_Touchscreen
// Note: this library doesn't require further configuration
#include <XPT2046_Touchscreen.h>
TFT_eSPI tft = TFT_eSPI();
// Touchscreen pins
#define XPT2046_IRQ 36 // T_IRQ
#define XPT2046_MOSI 13 // T_DIN
#define XPT2046_MISO 12 // T_OUT
#define XPT2046_CLK 14 // T_CLK
#define XPT2046_CS 33 // T_CS
SPIClass touchscreenSPI = SPIClass(HSPI);
XPT2046_Touchscreen touchscreen(XPT2046_CS, XPT2046_IRQ);
#define SCREEN_WIDTH 240
#define SCREEN_HEIGHT 320
#define FONT_SIZE 2
// Touchscreen coordinates: (x, y) and pressure (z)
int x, y, z;
// Print Touchscreen info about X, Y and Pressure (Z) on the Serial Monitor
void printTouchToSerial(int touchX, int touchY, int touchZ) {
Serial.print("X = ");
Serial.print(touchX);
Serial.print(" | Y = ");
Serial.print(touchY);
Serial.print(" | Pressure = ");
Serial.print(touchZ);
Serial.println();
}
// Print Touchscreen info about X, Y and Pressure (Z) on the TFT Display
void printTouchToDisplay(int touchX, int touchY, int touchZ) {
// Clear TFT screen
tft.fillScreen(TFT_WHITE);
tft.setTextColor(TFT_BLACK, TFT_WHITE);
int centerX = SCREEN_WIDTH / 2;
int textY = 80;
String tempText = "X = " + String(touchX);
tft.drawCentreString(tempText, centerX, textY, FONT_SIZE);
textY += 20;
tempText = "Y = " + String(touchY);
tft.drawCentreString(tempText, centerX, textY, FONT_SIZE);
textY += 20;
tempText = "Pressure = " + String(touchZ);
tft.drawCentreString(tempText, centerX, textY, FONT_SIZE);
}
void setup() {
Serial.begin(115200);
// Start the SPI for the touchscreen and init the touchscreen
touchscreenSPI.begin(XPT2046_CLK, XPT2046_MISO, XPT2046_MOSI, XPT2046_CS);
touchscreen.begin(touchscreenSPI);
// Set the Touchscreen rotation in landscape mode
// Note: in some displays, the touchscreen might be upside down, so you might need to set the rotation to 3: touchscreen.setRotation(3);
touchscreen.setRotation(1);
// Start the tft display
tft.init();
// Set the TFT display rotation in landscape mode
tft.setRotation(1);
// Clear the screen before writing to it
tft.fillScreen(TFT_WHITE);
tft.setTextColor(TFT_BLACK, TFT_WHITE);
// Set X and Y coordinates for center of display
int centerX = SCREEN_WIDTH / 2;
int centerY = SCREEN_HEIGHT / 2;
tft.drawCentreString("Hello, world!", centerX, 30, FONT_SIZE);
tft.drawCentreString("Touch screen to test", centerX, centerY, FONT_SIZE);
}
void loop() {
// Checks if Touchscreen was touched, and prints X, Y and Pressure (Z) info on the TFT display and Serial Monitor
if (touchscreen.tirqTouched() && touchscreen.touched()) {
// Get Touchscreen points
TS_Point p = touchscreen.getPoint();
// Calibrate Touchscreen points with map function to the correct width and height
x = map(p.y, 200, 3800, 1, SCREEN_HEIGHT);
y = map(p.x, 240, 3700, 1, SCREEN_WIDTH);
z = p.z;
printTouchToSerial(x, y, z);
printTouchToDisplay(x, y, z);
delay(100);
}
}
