#include <SPI.h>
//EPD
#include "Display_EPD_W21_spi.h"
#include "Display_EPD_W21.h"
#include "Ap_29demo.h"  

void setup() {
   pinMode(A14, INPUT);  //BUSY
   pinMode(A15, OUTPUT); //RES 
   pinMode(A16, OUTPUT); //DC   
   pinMode(A17, OUTPUT); //CS   
   //SPI
   SPI.beginTransaction(SPISettings(10000000, MSBFIRST, SPI_MODE0)); 
   SPI.begin ();  
}

//Tips//
/*
1.Flickering is normal when EPD is performing a full screen update to clear ghosting from the previous image so to ensure better clarity and legibility for the new image.
2.There will be no flicker when EPD performs a partial refresh.
3.Please make sue that EPD enters sleep mode when refresh is completed and always leave the sleep mode command. Otherwise, this may result in a reduced lifespan of EPD.
4.Please refrain from inserting EPD to the FPC socket or unplugging it when the MCU is being powered to prevent potential damage.)
5.Re-initialization is required for every full screen update.
6.When porting the program, set the BUSY pin to input mode and other pins to output mode.
*/
void loop() {
   unsigned char i;
#if 1 //Full screen refresh, fast refresh, and partial refresh demostration.

      EPD_Init(); //Full screen refresh initialization.
      EPD_WhiteScreen_White(); //Clear screen function.
      EPD_DeepSleep(); //Enter the sleep mode and please do not delete it, otherwise it will reduce the lifespan of the screen.
      delay(2000); //Delay for 2s. 
     /************Full display(2s)*******************/
      EPD_Init(); //Full screen refresh initialization.
      EPD_WhiteScreen_ALL(gImage_1); //To Display one image using full screen refresh.
      EPD_DeepSleep(); //Enter the sleep mode and please do not delete it, otherwise it will reduce the lifespan of the screen.
      delay(2000); //Delay for 2s. 
      /************Fast refresh mode(1.5s)*******************/
      EPD_Init_Fast(); //Fast refresh initialization.
      EPD_WhiteScreen_ALL(gImage_1); //To display one image using fast refresh.
      EPD_DeepSleep(); //Enter the sleep mode and please do not delete it, otherwise it will reduce the lifespan of the screen.
      delay(2000); //Delay for 2s.
  #if 1 //Partial refresh demostration.
  //Partial refresh demo support displaying a clock at 5 locations with 00:00.  If you need to perform partial refresh more than 5 locations, please use the feature of using partial refresh at the full screen demo.
  //After 5 partial refreshes, implement a full screen refresh to clear the ghosting caused by partial refreshes.
  //////////////////////Partial refresh time demo/////////////////////////////////////
      EPD_Init(); //Electronic paper initialization.  
      EPD_SetRAMValue_BaseMap(gImage_basemap); //Please do not delete the background color function, otherwise it will cause unstable display during partial refresh. 
      for(i=0;i<6;i++)
      {
        EPD_Dis_Part_Time(40,150,Num[1],Num[0],gImage_numdot,Num[0],Num[i],5,64,32); //x,y,DATA-A~E,number,Resolution 32*64         
      }       
      EPD_DeepSleep();  //Enter the sleep mode and please do not delete it, otherwise it will reduce the lifespan of the screen.
      delay(2000); //Delay for 2s.
        
      EPD_Init(); //Full screen refresh initialization.
      EPD_WhiteScreen_White(); //Clear screen function.
      EPD_DeepSleep(); //Enter the sleep mode and please do not delete it, otherwise it will reduce the lifespan of the screen.
      delay(2000); //Delay for 2s.
  #endif  
  
  #if 0   //Demo of using partial refresh to update the full screen, to enable this feature, please change 0 to 1.
  //After 5 partial refreshes, implement a full screen refresh to clear the ghosting caused by partial refreshes.
  //////////////////////Partial refresh time demo/////////////////////////////////////
      EPD_Init(); //Full screen refresh initialization.
      EPD_WhiteScreen_White(); //Clear screen function.   
      EPD_Dis_PartAll(gImage_p1);
      EPD_Dis_PartAll(gImage_p2);
      EPD_Dis_PartAll(gImage_p3);
      EPD_DeepSleep();//Enter the sleep mode and please do not delete it, otherwise it will reduce the lifespan of the screen.
      delay(2000); //Delay for 2s. 
      
      EPD_Init(); //Full screen refresh initialization.
      EPD_WhiteScreen_White(); //Clear screen function.
      EPD_DeepSleep(); //Enter the sleep mode and please do not delete it, otherwise it will reduce the lifespan of the screen.
      delay(2000); //Delay for 2s.
  #endif
  
  #if 0 //Demonstration of full screen refresh with 180-degree rotation, to enable this feature, please change 0 to 1.
      /************Full display(2s)*******************/
      EPD_Init_180(); //Full screen refresh initialization.
      EPD_WhiteScreen_ALL(gImage_1); //To Display one image using full screen refresh.
      EPD_DeepSleep(); //Enter the sleep mode and please do not delete it, otherwise it will reduce the lifespan of the screen.
      delay(2000); //Delay for 2s.
  #endif        
#endif
 while(1);  // The program stops here   
}




//////////////////////////////////END//////////////////////////////////////////////////
