jun imamura / epd1in54

WaveShare e-paper module (epd1in54). Monochrome version

e-Paper Module

Description

Waveshare 1.54 e-paper module imported from offiicial code https://www.waveshare.com/wiki/1.54inch_e-Paper_Module Codes are referenced from official Arduino code and Raspberry pi code.

SPI is used for communication between ePaper module and mbed.

Following shapes can be used:

  • primitive shape (square, circle, line)
  • font (variable sizes)

Pull request are appreciated (Note that the original code is copyrighted by (C) Waveshare )

Example Output

Display output with example code will be like following image:

/media/uploads/imachooon/img_20180216_223238.jpg

Example Code

include the mbed library with this snippet

#include "mbed.h"
#include "epd1in54.h"
#include "m41t62_rtc.h"
// Control
PinName rst;
PinName dc;
PinName busy;
// SPI communication
PinName mosi;
PinName miso;
PinName sclk;
PinName cs;

DigitalOut myled(LED1);

unsigned char frame_black[EPD_HEIGHT*EPD_WIDTH/8];


int main() {
    mosi = p5;
    miso = p6;
    sclk = p7;
    cs = p8;
    rst = p9;
    dc = p10;
    busy = p11;
    
    memset(frame_black, 0xFF, sizeof(unsigned char)*EPD_HEIGHT*EPD_WIDTH/8);

    Epd epd = Epd(mosi, miso, sclk, cs, dc, rst, busy);
    if (epd.Init(lut_full_update) != 0){
        return -1;
    }

    /* Draw something to the frame buffer */
    // For simplicity, the arguments are explicit numerical coordinates
    epd.DrawRectangle(frame_black, 10, 60, 50, 110, COLORED);
    epd.DrawLine(frame_black, 10, 60, 50, 110, COLORED);
    epd.DrawLine(frame_black, 50, 60, 10, 110, COLORED);
    epd.DrawCircle(frame_black, 120, 80, 30, COLORED);
    epd.DrawFilledRectangle(frame_black, 10, 130, 50, 180, COLORED);
    epd.DrawFilledRectangle(frame_black, 0, 6, 200, 26, COLORED);
    epd.DrawFilledCircle(frame_black, 120, 150, 30, COLORED);

    /*Write strings to the buffer */
    epd.DrawStringAt(frame_black, 30, 30, "e-Paper Demo", &Font16, COLORED);
    epd.DrawStringAt(frame_black, 28, 10, "Hello world!", &Font16, UNCOLORED);


    
    /* Display the frame_buffer */
    epd.SetFrameMemory(frame_black, 0, 0, epd.width, epd.height);
    epd.DisplayFrame();
    epd.Sleep();

    
    while(1) {
        myled = 1;
        wait(0.5);
        myled = 0;
        wait(0.5);
    }
}

fonts.h

Committer:
imachooon
Date:
2018-02-16
Revision:
0:ac97d71fe296

File content as of revision 0:ac97d71fe296:

/**
  ******************************************************************************
  * @file    fonts.h
  * @author  MCD Application Team
  * @version V1.0.0
  * @date    18-February-2014
  * @brief   Header for fonts.c file
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
  *
  * Redistribution and use in source and binary forms, with or without modification,
  * are permitted provided that the following conditions are met:
  *   1. Redistributions of source code must retain the above copyright notice,
  *      this list of conditions and the following disclaimer.
  *   2. Redistributions in binary form must reproduce the above copyright notice,
  *      this list of conditions and the following disclaimer in the documentation
  *      and/or other materials provided with the distribution.
  *   3. Neither the name of STMicroelectronics nor the names of its contributors
  *      may be used to endorse or promote products derived from this software
  *      without specific prior written permission.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
  ******************************************************************************
  */

/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __FONTS_H
#define __FONTS_H

/* Max size of bitmap will based on a font24 (17x24) */
#define MAX_HEIGHT_FONT         24
#define MAX_WIDTH_FONT          17
#define OFFSET_BITMAP           54

#ifdef __cplusplus
 extern "C" {
#endif

/* Includes ------------------------------------------------------------------*/
#include <stdint.h>

typedef struct _tFont
{    
  const uint8_t *table;
  uint16_t Width;
  uint16_t Height;
  
} sFONT;

extern sFONT Font24;
extern sFONT Font20;
extern sFONT Font16;
extern sFONT Font12;
extern sFONT Font8;

#ifdef __cplusplus
}
#endif
  
#endif /* __FONTS_H */
 

/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/