ESP32 connection to TFT LDC for Arduino Uno

Other Hardware Displays
1

Hello, I have been working on a project using an ESP32 and a TFT LCD display with touchscreen for arduino uno. This is the display I use.

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I need to use WiFi at the same time so I modified the user_setup.h file to remove and adc2 pins.
The display has no issue in the actual display part, but I am having some trouble with the touchscreen. I can read only 1 axis off it, because it doesn't work with the TFT_eSPI touchscreen read function. My LCD_RD pin is connected to 3.3v, I tried to connect it to D32, but I didn't notice any change.
Here is my code that I use to test the reading for the 1 axis:

#include <TFT_eSPI.h>

TFT_eSPI tft = TFT_eSPI();

int Y() {
  int y = 0;
  pinMode(27, OUTPUT); digitalWrite(27, HIGH);
  pinMode(13, OUTPUT); digitalWrite(13, LOW);
  pinMode(14, INPUT);
  pinMode(26, INPUT);
  delay(5);
  for (int i = 0; i <= 20; i++) {
    y += analogRead(35);
    delay(2);
  }
  pinMode(26, OUTPUT);
  pinMode(14, OUTPUT);
  pinMode(27, OUTPUT);
  pinMode(13, OUTPUT);
  delay(5);
  return y / 400;
}

void setup() {
  tft.init();
  tft.setTextSize(2);
  tft.fillScreen(TFT_BLACK);
}

void loop() {
  tft.setCursor(0, 0);
  int y = Y();
  tft.print(y);
  delay(250);
}

Here is my user_setup.h:

#define ILI9341_DRIVER
#define ESP32_PARALLEL

#define TFT_RST 23
#define TFT_CS 25
#define TFT_DC 26
#define TFT_WR 27

#define TFT_D0 13
#define TFT_D1 14
#define TFT_D2 16
#define TFT_D3 17
#define TFT_D4 18
#define TFT_D5 19
#define TFT_D6 21
#define TFT_D7 22

#define LOAD_GLCD
#define LOAD_FONT2
#define LOAD_FONT4
#define LOAD_FONT6
#define LOAD_FONT7
#define LOAD_FONT8
#define LOAD_GFXFF
#define SMOOTH_FONT

#define SPI_FREQUENCY 20000000
#define SPI_READ_FREQUENCY 20000000

I need some help to make the X axis work.
I also made a PCB for the current version, only the esp32 connected to the display. I do not use the SD card.

2

Try putting them back.

3

Do you have a link to or for this display?

4

This is the site that i bought the display off:

It doesn't show much info tho :/

5

I can't connect them to the adc2 pins because of the wifi, i did try with them the 1st time and the display itself refused to work, so i decided to not use them at all.

6

Boy I am having a confused day. What in blue blazes has the ADC2 pins got to do with the WiFi?

7

The wifi library uses all adc2 pins for some resons, and from what i know you can't use them to read anything because you will get random values.

8

Ok, I wonder how all my WiFi boards with nothing on any of the pins is working then.
Since you appear to be ahead of me I will bid you adieu.

9

I would imagine you might.

You have accounted for the fact that the shield's LCD_RS and LCD_CS pins do double duty as analog inputs for the touch screen? So you've connected them to pins on the ESP32 that can do analog input, right? Because the only pin you're doing an analog read on appears to be pin 35, which oddly doesn't appear in your list of pin connections.

Too many contradictions for my head today, I'm afraid. I wish you good luck in getting in working.