Touch Working with Generic ESP32 but not Espressive32?

[DovahBrownies]

Hey all!

I bought an ST7796S (LCD Wiki) along with a generic ESP32 from Amazon, connected the components, and set up the TFT_eSPI library as such:

User_Setup_Select.h

// #include <User_Setup.h>           // Default setup is root library folder
#include <./TFT_eSPI_Setups/mySetup27_ST7796_ESP32.h> 

./TFT_eSPI_Setups/mySetup27_ST7796_ESP32.h (Copied from User_Setups\Setup27_RPi_ST7796_ESP32.h)

// Comments removed for readability
#define USER_SETUP_ID 27
#define ST7796_DRIVER


#define TFT_MISO 19
#define TFT_MOSI 23
#define TFT_SCLK 18
#define TFT_CS   15   // Chip select control pin
#define TFT_DC    2   // Data Command control pin
#define TFT_RST   4   // Reset pin (could connect to RST pin)

#define TOUCH_CS 22     // Chip select pin (T_CS) of touch screen


#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  20000000


#define SPI_TOUCH_FREQUENCY  2500000

Everything worked flawlessly; Screen was rendering graphics and the touch was working.
I switched over to an Espressif ESP32-S3-DevKitC-1-N8R8 (Pinout) and changed the pin definitions in the above header file:

#define TFT_MISO 13
#define TFT_MOSI 11
#define TFT_SCLK 12
#define TFT_CS   10   // Chip select control pin
#define TFT_DC    7   // Data Command control pin
#define TFT_RST   6   // Reset pin (could connect to RST pin)

#define TOUCH_CS 5     // Chip select pin (T_CS) of touch screen

Graphics render just fine but I can't get the touch to work at all! These are my connections:

I've tried the Touch_Controller_Demo and Test_Touch_Controller demos to test on both MCUs.

Why is it working with the generic ESP but not the official Espressif one?
Any help would be super appreciated! Thank you!

[diephauthan]

i also had the same issue, im using esp32 s3 like you, the screen worked but the touch didnt work

[DovahBrownies]

Can you link the screen you're using?

[diephauthan]

I used an ILI9341 2.8 touch screen

https://www.amazon.com/HiLetgo-240X320-Resolution-Display-ILI9341/dp/B073R7BH1B

[DovahBrownies]

I used an ILI9341 2.8 touch screen

You need a different driver for the touch:
https://github.com/PaulStoffregen/XPT2046_Touchscreen