epaperdisplay/lib/esp32-waveshare-epd/examples/epd2in9_V2-demo/epd2in9_V2-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_2IN9_V2_test Demo\r\n");
	DEV_Module_Init();

    printf("e-Paper Init and Clear...\r\n");
    EPD_2IN9_V2_Init();
    EPD_2IN9_V2_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_2IN9_V2_WIDTH % 8 == 0)? (EPD_2IN9_V2_WIDTH / 8 ): (EPD_2IN9_V2_WIDTH / 8 + 1)) * EPD_2IN9_V2_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_2IN9_V2_WIDTH, EPD_2IN9_V2_HEIGHT, 270, WHITE);

#if 1   //show image for array  
    Paint_NewImage(BlackImage, EPD_2IN9_V2_WIDTH, EPD_2IN9_V2_HEIGHT, 270, WHITE);  
    printf("show image for array\r\n");
    Paint_SelectImage(BlackImage);
    Paint_Clear(WHITE);
    Paint_DrawBitMap(gImage_2in9);

    EPD_2IN9_V2_Display(BlackImage);
    DEV_Delay_ms(2000);
#endif

#if 1   // Drawing on the image
    printf("Drawing\r\n");
    //1.Select Image
    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);

    EPD_2IN9_V2_Display_Base(BlackImage);
    DEV_Delay_ms(2000);
#endif

#if 1   //Partial refresh, example shows time        
    printf("Partial refresh\r\n");
    PAINT_TIME sPaint_time;
    sPaint_time.Hour = 12;
    sPaint_time.Min = 34;
    sPaint_time.Sec = 56;
    UBYTE num = 20;
    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);

        num = num - 1;
        if(num == 0) {
            break;
        }
        EPD_2IN9_V2_Display_Partial(BlackImage);
        DEV_Delay_ms(500);//Analog clock 1s
    }

#endif
    printf("Clear...\r\n");
    EPD_2IN9_V2_Init();
    EPD_2IN9_V2_Clear();

    printf("Goto Sleep...\r\n");
    EPD_2IN9_V2_Sleep();
    free(BlackImage);
    BlackImage = NULL;
}

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