Thanks for your quick answer.
yes, there is an XPT2046 chip mounted on the pcb at position U2.
here is an excerpt from User_Setup.h
// For ESP32 Dev board (only tested with ILI9341 display)
// The hardware SPI can be mapped to any pins
// VCC
// GND
#define TFT_CS 15 // orange Chip select control pin
#define TFT_RST 4 // white Reset pin (could connect to RST pin) // # define TFT_RST -1 // Set TFT_RST to -1 if display RESET is connected to ESP32 board RST
#define TFT_DC 2 // beige Data Command control pin
#define TFT_MOSI 23 // purple
#define TFT_SCLK 18 // yellow
// LED
#define TFT_MISO 19 /// blue
// ** Touchscreen **
#define TOUCH_CLK 18 // yellow
#define TOUCH_CS 21 // green Chip select pin (T_CS) of touch screen
#define TOUCH_DIN 23 // mauve
#define TOUCH_DO 19 /// purple
Do I have to declare the touchscreen pins "T_ or TOUCH_"?
The examples all work except for the TOUCH function.
I never have a screen for calibration (need an SD card?)
