ESP32-3248S035C touchscreen does not work

[dorinik]

Thanks for your work! I try to use ESP32-3248S035C, but the touchscreen does not work. I tested the touchscreen with the demo file and it works! I use the settings:

define DSP_MODEL DSP_ST7796

define DSP_HSPI true

define LED_INVERT true

define TFT_CS 15

define TFT_DC 2

define TFT_RST -1

define BRIGHTNESS_PIN 27

define SDC_CS 5

define I2S_DOUT 17

define I2S_BCLK 4

define I2S_LRC 16

define TS_MODEL TS_MODEL_GT911

define LIGHT_SENSOR 34

define AUTOBACKLIGHT_MAX 1024

Best regards!

[DonEugraf]

Hi, Have you tried all 3 options? / TOUCH SCREEN /

define TS_MODEL_UNDEFINED

define TS_MODEL_XPT2046

define TS_MODEL_GT911

[dorinik]

Hi DonEugraf, I just tried:

define TS_MODEL_GT911

Tomorrow I will try the other 2 options. Thank you for the advice ! I hope one of the options will work.

[dorinik]

I tested the other 2 options for TS_MODEL, but they don't work. It should work with GT911 because the chip on the touch wiring is GT911... I think the library for GT911 is not ok.

[DonEugraf]

define TS_HSPI?

on mine i have define as follow, i can't see above setting on yours

/* !!! Do not be alarmed, all right, the default values ​​are not included in this file !!! */
#define DSP_MODEL           DSP_ST7735  //DSP_SSD1306 //DSP_DUMMY//DSP_2004I2C
#define DTYPE INITR_BLACKTAB // 1.8' https://aliexpress.ru/item/1005002822797745.html
#define BRIGHTNESS_PIN      22
#define TFT_CS            5                 /*  SPI CS pin  */
#define TFT_RST           -1                /*  SPI RST pin.  set to -1 and connect to Esp EN pin */
#define TFT_DC            4                 /*  SPI DC/RS pin  */
#define DSP_HSPI          false             /*  Use HSPI for display  */
/*  VSPI PINS. SCL(SCK, CLK) must be connected to pin 18
               SDA(MOSI, DIN, SDI) must be connected to pin 23  */
/*  HSPI PINS. SCL(SCK, CLK) must be connected to pin 14
               SDA(MOSI, DIN, SDI) must be connected to pin 13  */
#define TS_MODEL              TS_MODEL_XPT2046  //TS_MODEL_UNDEFINED//TS_MODEL_GT911
#define TS_HSPI   false      // use HSPI for touchscreen (miso=12, mosi=13, clk=14) instead of VSPI (by default)
#define TS_CS      32
#define SD_HSPI   false              /* use HSPI for SD (miso=12, mosi=13, clk=14) instead of VSPI (by default) */
#define SDC_CS      33
/******************************************/

[dorinik]

My board has capacitive touch, not resistive like yours. The pins of my touch (GT911) are INT=21, RST=25, SCL=32, SDA=33, the pins of your touch (XPT2046) have CLK, MOSI, MISO, CS, IRQ. The pins for GT911 are the same as those defined in options.h (208-218).

[DonEugraf]

I understand but you still have to define it as true or false I suppose

[DaradiciLevente]

https://youtu.be/MSIvnyaKNxk

https://satelit-info.com/phpBB3/viewtopic.php?f=172&t=3380&p=26183#p26178

#ifndef myoptions_h
#define myoptions_h
//
// Video on youtube: https://youtu.be/MSIvnyaKNxk
//
#define DSP_MODEL           DSP_ST7796
#define DSP_HSPI            true
#define TFT_DC          2
#define TFT_CS          15
#define BRIGHTNESS_PIN          27
#define I2S_INTERNAL            true
#define PLAYER_FORCE_MONO           true
#define TS_MODEL            TS_MODEL_GT911

#endif