epaperdisplay/lib/esp32-waveshare-epd/examples/epd2in7b-demo/epd2in7b-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_2IN7_test Demo\r\n");
  DEV_Module_Init();

  printf("e-Paper Init and Clear...\r\n");
    EPD_2IN7B_Init();
    EPD_2IN7B_Clear();
  DEV_Delay_ms(500);

 //Create a new image cache named IMAGE_BW and fill it with white
    UBYTE *BlackImage, *RedImage;
    UWORD Imagesize = ((EPD_2IN7B_WIDTH % 8 == 0)? (EPD_2IN7B_WIDTH / 8 ): (EPD_2IN7B_WIDTH / 8 + 1)) * EPD_2IN7B_HEIGHT;
    if((BlackImage = (UBYTE *)malloc(Imagesize)) == NULL) {
        printf("Failed to apply for black memory...\r\n");
        while(1);
    }
    if((RedImage = (UBYTE *)malloc(Imagesize)) == NULL) {
        printf("Failed to apply for red memory...\r\n");
        while(1);
    }
    printf("NewImage:BlackImage and RedImage\r\n");
    Paint_NewImage(BlackImage, EPD_2IN7B_WIDTH, EPD_2IN7B_HEIGHT, 270, WHITE);
    Paint_NewImage(RedImage, EPD_2IN7B_WIDTH, EPD_2IN7B_HEIGHT, 270, WHITE);

    //Select Image
    Paint_SelectImage(BlackImage);
    Paint_Clear(WHITE);
    Paint_SelectImage(RedImage);
    Paint_Clear(WHITE);


#if 1   // show image for array   
    printf("show image for array\r\n");
    Paint_SelectImage(BlackImage);
    Paint_DrawBitMap(gImage_2in7b_Black);
    Paint_SelectImage(RedImage);
    Paint_DrawBitMap(gImage_2in7b_Red);
    EPD_2IN7B_Display(BlackImage, RedImage);
    DEV_Delay_ms(4000);
#endif

#if 1   // Drawing on the image
    /*Horizontal screen*/
    //1.Draw black image
    Paint_SelectImage(BlackImage);
    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_DrawPoint(10, 110, 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_DrawString_EN(10, 0, "waveshare", &Font16, BLACK, WHITE);
    Paint_DrawString_CN(130, 20, "微雪电子", &Font24CN, WHITE, BLACK);
    Paint_DrawNum(10, 50, 987654321, &Font16, WHITE, BLACK);

    //2.Draw red image
    Paint_SelectImage(RedImage);
    Paint_Clear(WHITE);
    Paint_DrawCircle(160, 95, 20, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
    Paint_DrawCircle(210, 95, 20, BLACK, 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_CN(130, 0,"你好abc", &Font12CN, BLACK, WHITE);
    Paint_DrawString_EN(10, 20, "hello world", &Font12, WHITE, BLACK);
    Paint_DrawNum(10, 33, 123456789, &Font12, BLACK, WHITE);

    printf("EPD_Display\r\n");
    EPD_2IN7B_Display(BlackImage, RedImage);
    DEV_Delay_ms(4000);
#endif

    printf("Clear...\r\n");
    EPD_2IN7B_Clear();

    printf("Goto Sleep...\r\n");
    EPD_2IN7B_Sleep();
    free(BlackImage);
    BlackImage = NULL;

}

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