So i recently buy this "ILI9341 TFT SPI Display" from online but after a plug the wires in my arduino uno it displays as white screen, sometimes it works but only glitching after that goes back on being white again. So i tried to pud the vcc in 5v does not work and also the led and i put it back again in the 3.3v So i use this code
P.S This is not a touch screen i only need it to display
#include <SPI.h>
#include <Adafruit_GFX.h>
#include <Adafruit_ILI9341.h>
#define TFT_CS 10
#define TFT_DC 8
#define TFT_RST 9
// Use hardware SPI with explicit SCK and MOSI pins
Adafruit_ILI9341 tft = Adafruit_ILI9341(TFT_CS, TFT_DC, TFT_RST, 13, 11); // SCK=13, MOSI=11
void setup() {
Serial.begin(9600);
Serial.println("Alternative Display Test");
// Force SPI mode 0
SPI.setDataMode(SPI_MODE0);
SPI.setBitOrder(MSBFIRST);
SPI.setClockDivider(SPI_CLOCK_DIV8);
// Initialize with slower speed
tft.begin(20000);
delay(100);
// Basic test pattern
while(1) {
// Red screen
tft.fillScreen(ILI9341_RED);
delay(1000);
// Green screen
tft.fillScreen(ILI9341_GREEN);
delay(1000);
// Blue screen
tft.fillScreen(ILI9341_BLUE);
delay(1000);
// Text test
tft.fillScreen(ILI9341_BLACK);
tft.setTextColor(ILI9341_WHITE);
tft.setTextSize(2);
tft.setCursor(10, 10);
tft.println("Testing 123");
delay(1000);
}
}
void loop() {
// Empty
}
my pins
| VCC | 3.3V Red |
|---|---|
| GND | GND Black |
| CS | D10 Yellow |
| DC | D8 Blue |
| RST | D9 Green |
| MOSI | D11 Orange |
| SCK | D13 Purple |
| LED | 3.3V white |
