White screen no matter what i do

[gortyy]

Hello everybody , i got my self a tft screen a year ago or so , i remember making it work once with like 2 weeks of youtube videos but lately i wanted to use it again for a project and somehow no matter what i do i cant get it to work other than displaying a white screen , i tried a code from someone that uses no libreray to see if it was dead or not and his code made it display lines so its not dead . here is the tft i got

also this is the outcome of adafruit TFT LCD graphics test TFT LCD test Using Adafruit 2.8" TFT Breakout Board Pinout TFT size is 240x320 Unknown LCD driver chip: 0 If using the Adafruit 2.8" TFT Arduino shield, the line: #define USE_ADAFRUIT_SHIELD_PINOUT should appear in the library header (Adafruit_TFT.h). If using the breakout board, it should NOT be #defined! Also if using the breakout, double-check that all wiring matches the tutorial.

the output of LCD_ID_redref.ino `Read Registers on MCUFRIEND UNO shield
controllers either read as single 16-bit
e.g. the ID is at readReg(0)
or as a sequence of 8-bit values
in special locations (first is dummy)

reg(0x0000) 00 00 ID: ILI9320, ILI9325, ILI9335, ...
reg(0x0004) 00 00 00 00 Manufacturer ID
reg(0x0009) 00 00 61 00 00 Status Register
reg(0x000A) 00 08 Get Power Mode
reg(0x000C) 00 06 Get Pixel Format
reg(0x0061) 00 00 RDID1 HX8347-G
reg(0x0062) 00 00 RDID2 HX8347-G
reg(0x0063) 00 00 RDID3 HX8347-G
reg(0x0064) 00 00 RDID1 HX8347-A
reg(0x0065) 00 00 RDID2 HX8347-A
reg(0x0066) 00 00 RDID3 HX8347-A
`
i tried countless libraries , and countless videos the only thing i can see is that in my past code it used to call tft.begin(0x9341); but dsnt work anymore , also had ot reinstall arduino ide so reinstalled all the libraries with new versions maybe it could be that but nothing i can be sure of neither debunk by my self so pls help me im rly getting frustrated and about to give up on it

ps: also im using it with an arduino uno that works fine cuz i tested it with leds and other things it seems to perfectly respond to everything

[xfpd]

Show your wiring with a drawing and a picture. Also get a better picture of the two chips on the reverse side.

[gortyy]

here you go @xfpd

cant do better for the chips but its writen : sum74hc2451 and D1804A0PJ1 on the U3 and U2 and on the U1 one its AMS1117 and 3.3NXN21

[gortyy]

btw only the spfd5408 lib seems to give this Found ILI9341 LCD driver but still dsnt show anything . only white screen

[SurferTim]

Did you install this library?
MCUFRIEND_kbv
If so, go to
IDE -> File -> Examples -> MCUFRIEND_kbv
Try the GLUE_Demo_320x240

[gortyy]

hey surferTim , well big white screen like usual

[xfpd]

Look in the library (libraries) that you are using to identify the pin signals are correct.

[gortyy]

excuse me , i searched in where u said all i can find is these

in the graphics test sketch but in library i find this

[xfpd]

Did you find "A7"?

DC is the same as RS (and also Address Select / A0)

Maybe the information on this link will help...

Ultimate Beginner’s Guide to Run TFT LCD Displays by Arduino | Arduino

[gortyy]

im following the guide u sent

[gortyy]

how to know if the screen is dead ? with this code i had like 1/4 of the screen black for one sketch run then it went back full white , is it broken ?

#include "Adafruit_GFX.h"
#include "MCUFRIEND_kbv.h"
#include "TouchScreen.h" // only when you want to use touch screen 

#include "Fonts/FreeSans9pt7b.h"    // when you want other fonts
#include "Fonts/FreeSans12pt7b.h" // when you want other fonts
#include "Fonts/FreeSerif12pt7b.h" // when you want other fonts
#include "FreeDefaultFonts.h" // when you want other fonts 
#include "SPI.h"  // using sdcard for display bitmap image
#include "SD.h"

#define BLACK 0x0000

//(int CS=A3, int RS=A2, int WR=A1, int RD=A0, int RST=A4)
MCUFRIEND_kbv tft(A3, A2, A1, A0, A4);
void setup() {

uint16_t ID = tft.readID();
tft.begin(ID);
uint16_t wid=tft.width(); //int16_t width(void);
uint16_t hei=tft.height(); //int16_t height(void);
tft.fillScreen(BLACK);

}

void loop() {
  tft.fillScreen(BLACK);

}

[xfpd]

@gortyy

is it broken ?

If another TFT that works, "broken" is up to you to determine.

[gortyy]

oky so basicly after a turn into the arduino discord , a super friendly guy helped me i had some kind of a version issue where it only worked with the old Arduino IDE the 1.8.2 and the old libraries that god thnx i kept in a backup zipfolder when i worked on it the first time cuz i knew i was gonna be a pain in the *** to make it work again someday later . so here im sharing with all of u the libraries i had
libraries.zip (3,1 Mo) along with a little code i use to run it

#include <Adafruit_GFX.h>     // Core graphics library
#include <Adafruit_TFTLCD.h>  // Hardware-specific library
#include <TouchScreen.h>

#define YP A1  // must be an analog pin, use "An" notation!
#define XM A2  // must be an analog pin, use "An" notation!
#define YM 7   // can be a digital pin
#define XP 6   // can be a digital pin

#define TS_MINX 150
#define TS_MINY 120
#define TS_MAXX 920
#define TS_MAXY 940

TouchScreen ts = TouchScreen(XP, YP, XM, YM, 300);

#define LCD_CS A3  // Chip Select goes to Analog 3
#define LCD_CD A2  // Command/Data goes to Analog 2
#define LCD_WR A1  // LCD Write goes to Analog 1
#define LCD_RD A0  // LCD Read goes to Analog 0

#define LCD_RESET A4  // Can alternately just connect to Arduino's reset pin

// Assign human-readable names to some common 16-bit color values:
#define BLACK 0x0000
#define BLUE 0x001F
#define RED 0xF800
#define GREEN 0x07E0
#define CYAN 0x07FF
#define MAGENTA 0xF81F
#define YELLOW 0xFFE0
#define WHITE 0xFFFF

Adafruit_TFTLCD tft(LCD_CS, LCD_CD, LCD_WR, LCD_RD, LCD_RESET);  //Declaring the tft lcd
int i = 0;
bool used = false;

void homescreen() {
  if (i < 1) {
    tft.fillScreen(BLACK);
    delay(70);
    tft.fillScreen(RED);
    delay(70);
    tft.fillScreen(BLUE);
    delay(70);
    tft.fillScreen(YELLOW);
    delay(70);
    tft.fillScreen(BLACK);
    delay(70);


    tft.fillScreen(BLACK);
    tft.setCursor(10, 20);  //Position of the cursor from where do you want to start writing
    tft.setTextColor(RED);
    tft.setTextSize(3);  //Text color and size (1-5)
    tft.println("I");


    tft.setCursor(120, 100);  //Position of the cursor from where do you want to start writing
    tft.setTextColor(GREEN);
    tft.setTextSize(3);  //Text color and size (1-5)
    tft.println("MADE");


    tft.setCursor(200, 200);  //Position of the cursor from where do you want to start writing
    tft.setTextColor(BLUE);
    tft.setTextSize(3);  //Text color and size (1-5)
    tft.println("THIS");
    delay(2000);
    i++;
  }

  tft.fillScreen(BLACK);
  tft.setCursor(50, 20);  //Position of the cursor from where do you want to start writing
  tft.setTextColor(WHITE);
  tft.setTextSize(3);  //Text color and size (1-5)
  tft.println("LUXUARY");

  tft.setCursor(185, 20);
  tft.setTextColor(WHITE, BLUE);
  tft.setTextSize(3);
  tft.println("Travel");

  tft.drawFastHLine(1, 60, 400, RED);
  tft.fillRoundRect(1, 7, 40, 50, 30, RED);

  tft.fillRoundRect(40, 80, 100, 50, 5, RED);
  tft.setCursor(47, 97);
  tft.setTextColor(WHITE);
  tft.setTextSize(2);
  tft.println("Analyse");

  tft.fillRoundRect(190, 80, 100, 50, 5, RED);
  tft.setCursor(217, 97);
  tft.setTextColor(WHITE);
  tft.setTextSize(2);
  tft.println("Sign");

  tft.fillRoundRect(40, 160, 100, 50, 5, RED);
  tft.setCursor(57, 175);
  tft.setTextColor(WHITE);
  tft.setTextSize(2);
  tft.println("Admin");

  tft.fillRoundRect(190, 160, 100, 50, 5, RED);
  tft.setCursor(222, 175);
  tft.setTextColor(WHITE);
  tft.setTextSize(2);
  tft.println("PDF");

  tft.setCursor(10, 23);
  tft.setTextColor(WHITE);
  tft.setTextSize(2);
  tft.println("LT");
}


void setup() {

  Serial.begin(9600);
  tft.reset();        //Reseting the shield
  tft.begin(0x9341);  //Starting the shield
  tft.setRotation(1);
  homescreen();
  


  // put your setup code here, to run once:
}

#define MINPRESSURE 10
#define MAXPRESSURE 1000

void loop() {
}

hope it helps somebody someday <3

to sum it up , use the libraries i gave in a zip file instead of all the others and use the Arduino ide 1.8.19 to run it

[gortyy]

besides that , can you pls advise me some screens that are up to date and that dont require such a mess to run ? i would like to get some other tft screens but not ready to go over all of this again . neither when buying it neither in the future pls

[xfpd]

@gortyy

advise me some screens that are up to date

I do not know.

Some suggest finding the library you want before finding the device that uses the library.