How to get Touch working with ?Resistive Touch? Not sure

[dookie454]

Hello! This library is great, very FAST, which is what I was looking for! So thanks for that!

Now, trying to get Touch working, and cant. I get no change in the X and y values, they show 0.

I'm using only the 1 wire (T_CS) for touch, wired to GPIO 21.

This display: https://www.amazon.com/gp/product/B073R7BH1B/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1
HiLetgo ILI9341 2.8" SPI TFT LCD Display Touch Panel 240X320 with PCB 5V/3.3V STM32

I have ESP32 Devkit v1, which doesnt have the GPIO 0 port like the v4 has. No biggie, incase you were wondring why I didnt use 0.

// For ESP32 Dev board (only tested with ILI9341 display)
// The hardware SPI can be mapped to any pins
#define TFT_MISO 19 //SDD on LCD
#define TFT_MOSI 23 //SDI on LCD
#define TFT_SCLK 18 //SCK on LCD
#define TFT_CS 15 //CS on LCD - Chip select control pin
#define TFT_DC 2 //DC on LCD - Data Command control pin
#define TFT_RST 27 //0 works for Devkit v4, was 4 RESET pin on LCD - Reset pin (could connect to RST pin). ESP32 Devkitv1 does not have pin 0!
#define TOUCH_CS 21 // Chip select pin (T_CS) of touch screen - THIS DOES NOT WORK.

Thanks for any help you have for me, everything else is working GREAT!!

[Bodmer]

Have you connected the touch controller pins to the SPI bus?

T_DO -> TFT_MISO pin
T_DIN -> TFT_MOSI pin
T_CLK -> TFT_SCLK pin

Run the Test_Touch_Controller diagnostic example to test the connections.

[dookie454]

Did not connect those, probably because I only saw something about adding the Touch_CS pin to the ESP32 : )

It works now!

Thanks!!