Kuman 3.5" TFT Staying on a blank white screen?

[will_payne]

I just got my Arduino Mega 2560 put the screen on got the screen to work. But it sits on a white screen and will not display anything I tell it.

I do get the following errors:

In file included from C:\Users\Mike\AppData\Local\Temp\arduino_modified_sketch_30605\TFT_Print_Test.ino:14:0:
C:\Program Files (x86)\Arduino\libraries\TFT_HX8357/TFT_HX8357.h:124:0: warning: "HX8357B" redefined
 #define HX8357B 0xB
 
In file included from C:\Program Files (x86)\Arduino\libraries\TFT_HX8357/TFT_HX8357.h:19:0,
                 from C:\Users\Mike\AppData\Local\Temp\arduino_modified_sketch_30605\TFT_Print_Test.ino:14:
C:\Program Files (x86)\Arduino\libraries\TFT_HX8357/User_Setup.h:13:0: note: this is the location of the previous definition
 #define HX8357B

How ever it does complete the compiling...

here is a copy of the program I am trying to get working

#include <TFT_HX8357.h> // Hardware-specific library

TFT_HX8357 tft = TFT_HX8357();       // Invoke custom library

#define TFT_GREY 0x5AEB // New colour






void setup(void) {
  tft.init();
  tft.setRotation(2);
}

void loop() {
  
  // Fill screen with random colour so we can see the effect of printing with and without 
  // a background colour defined
  tft.fillScreen(random(0xFFFF));
  
  // Set "cursor" at top left corner of display (0,0) and select font 2
  // (cursor will move to next line automatically during printing with 'tft.println'
  //  or stay on the line is there is room for the text with tft.print)
  tft.setCursor(0, 0, 2);
  // Set the font colour to be white with a black background, set text size multiplier to 1
  tft.setTextColor(TFT_WHITE,TFT_BLACK);  tft.setTextSize(1);
  // We can now plot text on screen using the "print" class
  tft.println("Hello World!");
  
  // Set the font colour to be yellow with no background, set to font 7
  tft.setTextColor(TFT_YELLOW); tft.setTextFont(7);
  tft.println(1234.56);
  
  // Set the font colour to be red with black background, set to font 4
  tft.setTextColor(TFT_RED,TFT_BLACK);    tft.setTextFont(4);
  tft.println((long)3735928559, HEX); // Should print DEADBEEF

  // Set the font colour to be green with black background, set to font 4
  tft.setTextColor(TFT_GREEN,TFT_BLACK);
  tft.setTextFont(4);
  tft.println("Groop");
  tft.println("I implore thee,");

  // Change to font 2
  tft.setTextFont(2);
  tft.println(F("my foonting turlingdromes.")); // Can store strings in FLASH to save RAM
  tft.println("And hooptiously drangle me");
  tft.println("with crinkly bindlewurdles,");
  // This next line is deliberately made too long for the display width to test
  // automatic text wrapping onto the next line
  tft.println("Or I will rend thee in the gobberwarts with my blurglecruncheon, see if I don't!");
  
  // Test some print formatting functions
  float fnumber = 123.45;
   // Set the font colour to be blue with no background, set to font 4
  tft.setTextColor(TFT_BLUE);    tft.setTextFont(4);
  tft.print("Float = "); tft.println(fnumber);           // Print floating point number
  tft.print("Binary = "); tft.println((int)fnumber, BIN); // Print as integer value in binary
  tft.print("Hexadecimal = "); tft.println((int)fnumber, HEX); // Print as integer number in Hexadecimal
  delay(10000);
}

[sterretje]

@will_payne, your topic has been moved to a more suitable location on the forum.