Eerste sketch uploaden

/*
  Test of the OLED display for the "LilyGO - TTGO-T-Display" devkit
  The display is a 1.14Inch Oled display, resolution of 240x135 pixels.
  Make sure all to install the "TFT_eSPI" library (Library manager), and have the "User_Setup.h" file modified:
  (Comment out the "#include <User_Setup.h>" and uncomment the "#include <User_Setups/Setup25_TTGO_T_Display.h>" line
  Fonts 1,2,4 ;Font 3, 5, and greater are not defined.
*/

#include <SPI.h>
#include <TFT_eSPI.h> // Hardware-specific library

#define TFT_GREY 0x5AEB // New colour

TFT_eSPI tft = TFT_eSPI();       // Constructor for the TFT library

void setup(void) {
	tft.init();
	tft.setRotation(2);   //setRotation: 2: Screen upside down in landscape
}

void loop() {
	tft.fillScreen(random(0xFFFF));   //Fill screen with random colour


	tft.setCursor(0, 0, 2);   //(cursor at 0,0; font 2, println autosets the cursor on the next line)

	tft.setTextColor(TFT_WHITE, TFT_BLACK); // Textcolor, BackgroundColor; independent of the fillscreen
	tft.setTextSize(1);     //Set text size multiplier to 1

	tft.println("Hello World!");    //Print on cursorpos 0,0

	tft.setTextColor(TFT_WHITE, TFT_BLACK); //Set the font colour to be yellow with no background,
	for (int i = 1; i < 5; i++) {
		tft.setTextFont(i);
		tft.print("Test "); tft.println(i);
	}

	// Set the font colour to be red with black background, set to font 4
	tft.setTextColor(TFT_RED, TFT_WHITE);
	tft.setTextFont(4);
	tft.println((long)3735928559, HEX); //Prints constant in HEX

	tft.setTextColor(TFT_GREEN, TFT_BLACK);
	tft.setTextFont(4);
	tft.print("Large ");
	tft.println("text on screen.");    //Show printing on single line

	tft.setTextFont(1);
	tft.println(F("This will probably be barely readable.")); // Show wrapping and store strings in FLASH "F()"to save RAM


	// Test some print formatting functions
	float fnumber = 123.45;

	tft.setTextColor(TFT_BLUE);    // Set the font colour to be blue with no background, set to font 2
	tft.setTextFont(2);

	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);   //Wait for 10s
}