epaperdisplay/lib/esp32-waveshare-epd/examples/epd4in2-demo/epd4in2-demo.ino

/* Includes ------------------------------------------------------------------*/
#include "DEV_Config.h"
#include "EPD.h"
#include "GUI_Paint.h"
#include "imagedata.h"
#include <stdlib.h>

/* Entry point ----------------------------------------------------------------*/
void setup()
{
  printf("EPD_4IN2_test Demo\r\n");
  DEV_Module_Init();

  printf("e-Paper Init and Clear...\r\n");
  EPD_4IN2_Init_Fast();
  EPD_4IN2_Clear();
  DEV_Delay_ms(500);

  //Create a new image cache
  UBYTE *BlackImage;
  /* you have to edit the startup_stm32fxxx.s file and set a big enough heap size */
  UWORD Imagesize = ((EPD_4IN2_WIDTH % 8 == 0) ? (EPD_4IN2_WIDTH / 8 ) : (EPD_4IN2_WIDTH / 8 + 1)) * EPD_4IN2_HEIGHT;
  if ((BlackImage = (UBYTE *)malloc(Imagesize)) == NULL) {
    printf("Failed to apply for black memory...\r\n");
    while (1);
  }
  printf("Paint_NewImage\r\n");
  Paint_NewImage(BlackImage, EPD_4IN2_WIDTH, EPD_4IN2_HEIGHT, 0, WHITE);

#if 1   // show image for array   
  printf("show image for array\r\n");
  Paint_SelectImage(BlackImage);
  Paint_Clear(WHITE);
  Paint_DrawBitMap(gImage_4in2);
  EPD_4IN2_Display(BlackImage);
  DEV_Delay_ms(500);
#endif

#if 1   // Drawing on the image
  //1.Select Image
  printf("SelectImage:BlackImage\r\n");
  Paint_SelectImage(BlackImage);
  Paint_Clear(WHITE);

  // 2.Drawing on the image
  printf("Drawing:BlackImage\r\n");
  Paint_DrawPoint(10, 80, BLACK, DOT_PIXEL_1X1, DOT_STYLE_DFT);
  Paint_DrawPoint(10, 90, BLACK, DOT_PIXEL_2X2, DOT_STYLE_DFT);
  Paint_DrawPoint(10, 100, BLACK, DOT_PIXEL_3X3, DOT_STYLE_DFT);
  Paint_DrawLine(20, 70, 70, 120, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
  Paint_DrawLine(70, 70, 20, 120, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
  Paint_DrawRectangle(20, 70, 70, 120, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
  Paint_DrawRectangle(80, 70, 130, 120, BLACK, DOT_PIXEL_1X1, DRAW_FILL_FULL);
  Paint_DrawCircle(45, 95, 20, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
  Paint_DrawCircle(105, 95, 20, WHITE, DOT_PIXEL_1X1, DRAW_FILL_FULL);
  Paint_DrawLine(85, 95, 125, 95, BLACK, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
  Paint_DrawLine(105, 75, 105, 115, BLACK, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
  Paint_DrawString_EN(10, 0, "waveshare", &Font16, BLACK, WHITE);
  Paint_DrawString_EN(10, 20, "hello world", &Font12, WHITE, BLACK);
  Paint_DrawNum(10, 33, 123456789, &Font12, BLACK, WHITE);
  Paint_DrawNum(10, 50, 987654321, &Font16, WHITE, BLACK);
  Paint_DrawString_CN(130, 0, " 你好abc", &Font12CN, BLACK, WHITE);
  Paint_DrawString_CN(130, 20, "微雪电子", &Font24CN, WHITE, BLACK);

  printf("EPD_Display\r\n");
  EPD_4IN2_Display(BlackImage);
  DEV_Delay_ms(2000);
#endif


#if 0
  printf("Support for partial refresh, but the refresh effect is not good, but it is not recommended\r\n");
  printf("Partial refresh\r\n");
  EPD_4IN2_Init_Partial();
  PAINT_TIME sPaint_time;
  sPaint_time.Hour = 12;
  sPaint_time.Min = 34;
  sPaint_time.Sec = 56;
  UBYTE num = 10;
  for (;;) {
    sPaint_time.Sec = sPaint_time.Sec + 1;
    if (sPaint_time.Sec == 60) {
      sPaint_time.Min = sPaint_time.Min + 1;
      sPaint_time.Sec = 0;
      if (sPaint_time.Min == 60) {
        sPaint_time.Hour =  sPaint_time.Hour + 1;
        sPaint_time.Min = 0;
        if (sPaint_time.Hour == 24) {
          sPaint_time.Hour = 0;
          sPaint_time.Min = 0;
          sPaint_time.Sec = 0;
        }
      }
    }
    Paint_ClearWindows(150, 80, 150 + Font20.Width * 7, 80 + Font20.Height, WHITE);
    Paint_DrawTime(150, 80, &sPaint_time, &Font20, WHITE, BLACK);
    EPD_4IN2_PartialDisplay(150, 80, 150 + Font20.Width * 7, 80 + Font20.Height, BlackImage);
    DEV_Delay_ms(500);//Analog clock 1s
    num = num - 1;
    if (num == 0) {
      break;
    }
  }
#endif

#if 1
  EPD_4IN2_Init_4Gray();
  printf("show Gray------------------------\r\n");
  free(BlackImage);
  BlackImage = NULL;
  Imagesize = ((EPD_4IN2_WIDTH % 8 == 0) ? (EPD_4IN2_WIDTH / 4 ) : (EPD_4IN2_WIDTH / 4 + 1)) * EPD_4IN2_HEIGHT;
  if ((BlackImage = (UBYTE *)malloc(Imagesize)) == NULL) {
    printf("Failed to apply for black memory...\r\n");
    while (1);
  }
  Paint_NewImage(BlackImage, EPD_4IN2_WIDTH, EPD_4IN2_HEIGHT, 0, WHITE);
  Paint_SetScale(4);
  Paint_Clear(WHITE);

  Paint_DrawPoint(10, 80, BLACK, DOT_PIXEL_1X1, DOT_STYLE_DFT);
  Paint_DrawPoint(10, 90, BLACK, DOT_PIXEL_2X2, DOT_STYLE_DFT);
  Paint_DrawPoint(10, 100, BLACK, DOT_PIXEL_3X3, DOT_STYLE_DFT);
  Paint_DrawLine(20, 70, 70, 120, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
  Paint_DrawLine(70, 70, 20, 120, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
  Paint_DrawRectangle(20, 70, 70, 120, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
  Paint_DrawRectangle(80, 70, 130, 120, BLACK, DOT_PIXEL_1X1, DRAW_FILL_FULL);
  Paint_DrawCircle(45, 95, 20, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
  Paint_DrawCircle(105, 95, 20, WHITE, DOT_PIXEL_1X1, DRAW_FILL_FULL);
  Paint_DrawLine(85, 95, 125, 95, BLACK, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
  Paint_DrawLine(105, 75, 105, 115, BLACK, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
  Paint_DrawString_EN(10, 0, "waveshare", &Font16, BLACK, WHITE);
  Paint_DrawString_EN(10, 20, "hello world", &Font12, WHITE, BLACK);
  Paint_DrawNum(10, 33, 123456789, &Font12, BLACK, WHITE);
  Paint_DrawNum(10, 50, 987654321, &Font16, WHITE, BLACK);
  Paint_DrawString_CN(140, 0, "你好abc", &Font12CN, GRAY1, GRAY4);
  Paint_DrawString_CN(140, 40, "你好abc", &Font12CN, GRAY2, GRAY3);
  Paint_DrawString_CN(140, 80, "你好abc", &Font12CN, GRAY3, GRAY2);
  Paint_DrawString_CN(140, 120, "你好abc", &Font12CN, GRAY4, GRAY1);

  Paint_DrawString_CN(220, 0, "微雪电子", &Font24CN, GRAY1, GRAY4);
  Paint_DrawString_CN(220, 40, "微雪电子", &Font24CN, GRAY2, GRAY3);
  Paint_DrawString_CN(220, 80, "微雪电子", &Font24CN, GRAY3, GRAY2);
  Paint_DrawString_CN(220, 120, "微雪电子", &Font24CN, GRAY4, GRAY1);

  EPD_4IN2_4GrayDisplay(BlackImage);
  DEV_Delay_ms(2000);
#endif

  EPD_4IN2_Init_Fast();
  EPD_4IN2_Clear();

  printf("Goto Sleep...\r\n");
  EPD_4IN2_Sleep();
  free(BlackImage);
  BlackImage = NULL;
}

/* The main loop -------------------------------------------------------------*/
void loop()
{
  //
}