LilyGO T HMI ESP32 S3 ST7789 Parellel 8 and XPT2046 SPI touch display confi

[vednildip]

Since RD and RESET pin is not defined is -1 in LilyGO T HMI ESP32 S3 ST7789 Parellel 8 and XPT2046 SPI touch display How to configure available pins
// lcd
#define LCD_DATA0_PIN (48)
#define LCD_DATA1_PIN (47)
#define LCD_DATA2_PIN (39)
#define LCD_DATA3_PIN (40)
#define LCD_DATA4_PIN (41)
#define LCD_DATA5_PIN (42)
#define LCD_DATA6_PIN (45)
#define LCD_DATA7_PIN (46)
#define PCLK_PIN (8)
#define CS_PIN (6)
#define DC_PIN (7)
#define RST_PIN (-1)
#define BK_LIGHT_PIN (38)

// touch screen
#define TOUCHSCREEN_SCLK_PIN (1)
#define TOUCHSCREEN_MISO_PIN (4)
#define TOUCHSCREEN_MOSI_PIN (3)
#define TOUCHSCREEN_CS_PIN (2)
#define TOUCHSCREEN_IRQ_PIN (9)

Touch having compilation error : error: 'HSPI_HOST' was not declared in this scope; did you mean 'SPI3_HOST'?
73 | cfg.spi_host = HSPI_HOST;// 使用するSPIを選択 (HSPI_HOST or VSPI_HOST and when used SPI3_HOST code compiled

[ottoklein]

LGFX_LilyGO_T-HMI.zip
For Lovyan GFX configuration
73 Kurt

[ottoklein]

LilyGo-T-HMI_Arduino_GFX_red_point_Touch_XPT2046.zip
For Arduino GFX INO file with configuration.
73 k.

[Westcott1]

Thanks for posting!
I found your config zip 5 minutes after I'd worked out the pins by myself.
This is the old 2.8inch 240x320 panel.

[ottoklein]

It's always good to have a second opinion (grin).

[ottoklein]

//I have attached a calibration for the touchscreen on NVS storage, if you're interested.

#define HRES 320 // Default screen resulution for X axis
#define VRES 240 // Default screen resulution for Y axis

#include <Preferences.h>
Preferences prefs;

uint16_t Calibrate[8];
uint16_t ReStore[8];

void calibration() {

Serial.begin(115200);
prefs.begin("prefs", false); // Read only = true // Open our namespace (or create it, if it doesn't exist) in RO mode.
if (!prefs.isKey("Container")) { // exist Storage?

tft.fillScreen(TFT_BLUE);
tft.calibrateTouch(Calibrate, TFT_WHITE, TFT_BLUE, 20);  // Bodmer
prefs.putBytes("Container", (byte*)(&Calibrate), sizeof(Calibrate));  //put Calibration data into Storage

}
prefs.getBytes("Container", &ReStore, sizeof(ReStore)); // get Calibration data from Storage

//################### Change Loveyan / Bodmer #####################
tft.setTouchCalibrate(ReStore); //Lovyan Save Calibration
//tft.setTouch(ReStore);//Bodmer Save Calibration
//################################################################

Serial.print("Calibration Data: {");
for (byte i = 0; i < 7; i++) { Serial.printf("%d,", ReStore[i]); }
Serial.printf("%d}\n", ReStore[7]);

/*
Serial.println(prefs.freeEntries()); //491 Free space
Serial.println(prefs.getBytesLength("Container"));//16
Serial.println(prefs.getType("Container"));//9 = Bytes
*/
}

void newCalibration() {
tft.setTextColor(TFT_WHITE, TFT_BLUE);
tft.fillScreen(TFT_BLUE);
tft.setTextSize(1);
tft.drawCentreString("New calibration NVS!", HRES / 2, 100, 4);

delay(500);
prefs.remove("Container"); // delete only File
ESP.restart();
}

[vednildip]

Thank you for your mail. Regard Nilesh

…

On Thu, 6 Mar, 2025, 2:11 pm ottoklein, ***@***.***> wrote: LGFX_LilyGO_T-HMI.zip <https://github.com/user-attachments/files/19104363/LGFX_LilyGO_T-HMI.zip> For Lovyan GFX configuration 73 Kurt — Reply to this email directly, view it on GitHub <#646 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/BCHAUZP2UURORLAZDA3G5XD2TACZ7AVCNFSM6AAAAABR2RSD2OVHI2DSMVQWIX3LMV43URDJONRXK43TNFXW4Q3PNVWWK3TUHMYTENBRGEZDQOA> . You are receiving this because you authored the thread.Message ID: ***@***.***>

[ottoklein]

you're welcome, I hope you enjoy it
Regard
Kurt

[vednildip]

the uploaded from library manager #include <XPT2046_Touchscreen_TT.h>//XPT2046_Touchscreen_TT require adafruit GFX

…

On Thu, Mar 6, 2025 at 2:25 PM ottoklein ***@***.***> wrote: LilyGo-T-HMI_Arduino_GFX_red_point_Touch_XPT2046.zip <https://github.com/user-attachments/files/19104592/LilyGo-T-HMI_Arduino_GFX_red_point_Touch_XPT2046.zip> For Arduino GFX INO file with configuration. 73 k. — Reply to this email directly, view it on GitHub <#646 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/BCHAUZIWFHCCLGGU2EUUFLL2TAERTAVCNFSM6AAAAABR2RSD2OVHI2DSMVQWIX3LMV43URDJONRXK43TNFXW4Q3PNVWWK3TUHMYTENBRGE2DEMY> . You are receiving this because you authored the thread.Message ID: ***@***.***>

-- Regard Nilesh

[ottoklein]

//do not forget to turn on power and light in the setup

//#646
// 10.02.2025 Board: ESP 3.1.1 - lLibrary:LovyanGFX 1.1.20 ok

#include "LGFX_LilyGO_T-HMI.h"
#include <LGFX_TFT_eSPI.h>

static TFT_eSPI tft;

void setup() {
pinMode(PWR_EN_PIN, OUTPUT);
digitalWrite(PWR_EN_PIN, HIGH);
pinMode(PWR_ON_PIN, OUTPUT);
digitalWrite(PWR_ON_PIN, HIGH);

Serial.begin(115200);
tft.init();
tft.setBrightness(255);
//.......................................................................