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ESP32

new version: https://github.com/ZinggJM/GxEPD2/tree/master/examples/GxEPD2_MinimumExample

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defaultinis pvz veikia tik portus reikia pakeist

https://github.com/ZinggJM/GxEPD/blob/master/examples/GxEPD_MinimumExample/GxEPD_MinimumExample.ino

new lib - recomended
<code cpp>
// GxEPD2_MinimumExample.ino by Jean-Marc Zingg

// purpose is e.g. to determine minimum code and ram use by this library

// see GxEPD2_wiring_examples.h of GxEPD2_Example for wiring suggestions and examples
// if you use a different wiring, you need to adapt the constructor parameters!

// uncomment next line to use class GFX of library GFX_Root instead of Adafruit_GFX, to use less code and ram
//#include <GFX.h>

#include <GxEPD2_BW.h> // including both doesn't use more code or ram
#include <GxEPD2_3C.h> // including both doesn't use more code or ram

// select the display class and display driver class in the following file (new style):
#include "GxEPD2_display_selection_new_style.h"

// alternately you can copy the constructor from GxEPD2_display_selection.h or GxEPD2_display_selection_added.h of GxEPD2_Example to here
// e.g. for Wemos D1 mini:
//GxEPD2_BW<GxEPD2_154_D67, GxEPD2_154_D67::HEIGHT> display(GxEPD2_154_D67(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEH0154D67

//GxIO_Class io(SPI, /*CS=5*/ 5, /*DC=*/ 25, /*RST=*/ 16); // arbitrary selection of 17, 16
GxEPD2_BW<GxEPD2_154_D67, GxEPD2_154_D67::HEIGHT> display(GxEPD2_154_D67(/*CS=5*/ 5, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // arbitrary selection of (16), 4

void setup()
{
  display.init();
  // comment out next line to have no or minimal Adafruit_GFX code
  display.setTextColor(GxEPD_BLACK);
  display.firstPage();
  do
  {
    display.fillScreen(GxEPD_WHITE);
    // comment out next line to have no or minimal Adafruit_GFX code
    display.print("Labas vakaras! veikia!");
  }
  while (display.nextPage());
}

void loop() {};
</code>


old lib
<code cpp>

// GxEPD_MinimumExample by Jean-Marc Zingg

#include <GxEPD.h>

// select the display class to use, only one, copy from GxEPD_Example
#include <GxGDEH0154D67/GxGDEH0154D67.h>  // 1.54" b/w

#include <GxIO/GxIO_SPI/GxIO_SPI.h>
#include <GxIO/GxIO.h>

// constructor for AVR Arduino, copy from GxEPD_Example else
GxIO_Class io(SPI, /*CS=*/ 5, /*DC=*/ 17, /*RST=*/ 16); // arbitrary selection of 8, 9 selected for default of GxEPD_Class
GxEPD_Class display(io, /*RST=*/ 9, /*BUSY=*/ 4); // default selection of (9), 7

void setup()
{
  display.init();
  display.eraseDisplay();
  // comment out next line to have no or minimal Adafruit_GFX code
  display.drawPaged(drawHelloWorld); // version for AVR using paged drawing, works also on other processors
}

void drawHelloWorld()
{
  display.setTextColor(GxEPD_BLACK);
  display.print("Hello World!");
}

void loop() {};
</code>