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:
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); } }
epd1in54.h
- Committer:
- imachooon
- Date:
- 2018-02-16
- Revision:
- 0:ac97d71fe296
File content as of revision 0:ac97d71fe296:
/** * @filename : epd1in54.h * @brief : Header file for e-paper display library epd1in54b.cpp * @author : Yehui from Waveshare * * Copyright (C) Waveshare August 10 2017 * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documnetation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ #ifndef EPD1IN54_H #define EPD1IN54_H #include "epdif.h" #include "fonts.h" #define LOW 0 #define HIGH 1 // Display resolution #define EPD_WIDTH 200 #define EPD_HEIGHT 200 #define COLORED 1 #define UNCOLORED 0 // EPD1IN54 commands #define DRIVER_OUTPUT_CONTROL 0x01 #define BOOSTER_SOFT_START_CONTROL 0x0C #define GATE_SCAN_START_POSITION 0x0F #define DEEP_SLEEP_MODE 0x10 #define DATA_ENTRY_MODE_SETTING 0x11 #define SW_RESET 0x12 #define TEMPERATURE_SENSOR_CONTROL 0x1A #define MASTER_ACTIVATION 0x20 #define DISPLAY_UPDATE_CONTROL_1 0x21 #define DISPLAY_UPDATE_CONTROL_2 0x22 #define WRITE_RAM 0x24 #define WRITE_VCOM_REGISTER 0x2C #define WRITE_LUT_REGISTER 0x32 #define SET_DUMMY_LINE_PERIOD 0x3A #define SET_GATE_TIME 0x3B #define BORDER_WAVEFORM_CONTROL 0x3C #define SET_RAM_X_ADDRESS_START_END_POSITION 0x44 #define SET_RAM_Y_ADDRESS_START_END_POSITION 0x45 #define SET_RAM_X_ADDRESS_COUNTER 0x4E #define SET_RAM_Y_ADDRESS_COUNTER 0x4F #define TERMINATE_FRAME_READ_WRITE 0xFF // Display orientation #define ROTATE_0 0 #define ROTATE_90 1 #define ROTATE_180 2 #define ROTATE_270 3 extern const unsigned char lut_full_update[]; extern const unsigned char lut_partial_update[]; class Epd : EpdIf { public: unsigned long width; unsigned long height; unsigned int rotate; Epd(PinName mosi, PinName miso, PinName sclk, PinName cs, PinName dc, PinName rst, PinName busy ); ~Epd(); int Init(const unsigned char* lut); void SendCommand(unsigned char command); void SendData(unsigned char data); void WaitUntilIdle(void); void Reset(void); void SetLut(const unsigned char* lut); void SetMemoryArea(int x_start, int y_start, int x_end, int y_end); void SetMemoryPointer(int x, int y); void SetFrameMemory(const unsigned char* image_buffer, int x, int y, int image_width, int image_height); void ClearFrameMemory(unsigned char color); void DisplayFrame(void); void Sleep(void); void SetRotate(int rotate); void SetPixel(unsigned char *frame_buffer, int x, int y, int colored); void SetAbsolutePixel(unsigned char *frame_buffer, int x, int y, int colored); void DrawLine(unsigned char *frame_buffer, int x0, int y0, int x1, int y1, int colored); void DrawHorizontalLine(unsigned char *frame_buffer, int x, int y, int width, int colored); void DrawVerticalLine(unsigned char *frame_buffer, int x, int y, int height, int colored); void DrawRectangle(unsigned char *frame_buffer, int x0, int y0, int x1, int y1, int colored); void DrawFilledRectangle(unsigned char *frame_buffer, int x0, int y0, int x1, int y1, int colored); void DrawCircle(unsigned char *frame_buffer, int x, int y, int radius, int colored); void DrawFilledCircle(unsigned char *frame_buffer, int x, int y, int radius, int colored); void DrawCharAt(unsigned char *frame_buffer, int x, int y, char ascii_char, sFONT* font, int colored); void DrawStringAt(unsigned char *frame_buffer, int x, int y, const char* text, sFONT* font, int colored); }; #endif /* EPD1IN54_H */ /* END OF FILE */