add arduino code

1.54inch_e-paper_code/arduino/epd1in54-demo/epd1in54-demo.ino

@@ -0,0 +1,142 @@
+/**
+ *  @filename   :   epd1in54-demo.ino
+ *  @brief      :   1.54inch e-paper display demo
+ *  @author     :   Yehui from Waveshare
+ *
+ *  Copyright (C) Waveshare     September 5 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.
+ */
+
+#include <SPI.h>
+#include <epd1in54.h>
+#include <epdpaint.h>
+#include "imagedata.h"
+
+#define COLORED     0
+#define UNCOLORED   1
+
+/**
+  * Due to RAM not enough in Arduino UNO, a frame buffer is not allowed.
+  * In this case, a smaller image buffer is allocated and you have to 
+  * update a partial display several times.
+  * 1 byte = 8 pixels, therefore you have to set 8*N pixels at a time.
+  */
+unsigned char image[1024];
+Paint paint(image, 0, 0);    // width should be the multiple of 8 
+Epd epd;
+unsigned long time_start_ms;
+unsigned long time_now_s;
+
+void setup() {
+  // put your setup code here, to run once:
+  Serial.begin(9600);
+  if (epd.Init(lut_full_update) != 0) {
+      Serial.print("e-Paper init failed");
+      return;
+  }
+
+  /** 
+   *  there are 2 memory areas embedded in the e-paper display
+   *  and once the display is refreshed, the memory area will be auto-toggled,
+   *  i.e. the next action of SetFrameMemory will set the other memory area
+   *  therefore you have to clear the frame memory twice.
+   */
+  epd.ClearFrameMemory(0xFF);   // bit set = white, bit reset = black
+  epd.DisplayFrame();
+  epd.ClearFrameMemory(0xFF);   // bit set = white, bit reset = black
+  epd.DisplayFrame();
+
+  paint.SetRotate(ROTATE_0);
+  paint.SetWidth(200);
+  paint.SetHeight(24);
+
+  /* For simplicity, the arguments are explicit numerical coordinates */
+  paint.Clear(COLORED);
+  paint.DrawStringAt(30, 4, "Hello world!", &Font16, UNCOLORED);
+  epd.SetFrameMemory(paint.GetImage(), 0, 10, paint.GetWidth(), paint.GetHeight());
+  
+  paint.Clear(UNCOLORED);
+  paint.DrawStringAt(30, 4, "e-Paper Demo", &Font16, COLORED);
+  epd.SetFrameMemory(paint.GetImage(), 0, 30, paint.GetWidth(), paint.GetHeight());
+
+  paint.SetWidth(64);
+  paint.SetHeight(64);
+  
+  paint.Clear(UNCOLORED);
+  paint.DrawRectangle(0, 0, 40, 50, COLORED);
+  paint.DrawLine(0, 0, 40, 50, COLORED);
+  paint.DrawLine(40, 0, 0, 50, COLORED);
+  epd.SetFrameMemory(paint.GetImage(), 16, 60, paint.GetWidth(), paint.GetHeight());
+
+  paint.Clear(UNCOLORED);
+  paint.DrawCircle(32, 32, 30, COLORED);
+  epd.SetFrameMemory(paint.GetImage(), 120, 60, paint.GetWidth(), paint.GetHeight());
+
+  paint.Clear(UNCOLORED);
+  paint.DrawFilledRectangle(0, 0, 40, 50, COLORED);
+  epd.SetFrameMemory(paint.GetImage(), 16, 130, paint.GetWidth(), paint.GetHeight());
+
+  paint.Clear(UNCOLORED);
+  paint.DrawFilledCircle(32, 32, 30, COLORED);
+  epd.SetFrameMemory(paint.GetImage(), 120, 130, paint.GetWidth(), paint.GetHeight());
+  epd.DisplayFrame();
+
+  delay(2000);
+
+  if (epd.Init(lut_partial_update) != 0) {
+      Serial.print("e-Paper init failed");
+      return;
+  }
+
+  /** 
+   *  there are 2 memory areas embedded in the e-paper display
+   *  and once the display is refreshed, the memory area will be auto-toggled,
+   *  i.e. the next action of SetFrameMemory will set the other memory area
+   *  therefore you have to set the frame memory and refresh the display twice.
+   */
+  epd.SetFrameMemory(IMAGE_DATA);
+  epd.DisplayFrame();
+  epd.SetFrameMemory(IMAGE_DATA);
+  epd.DisplayFrame();
+
+  time_start_ms = millis();
+}
+
+void loop() {
+  // put your main code here, to run repeatedly:
+  time_now_s = (millis() - time_start_ms) / 1000;
+  char time_string[] = {'0', '0', ':', '0', '0', '\0'};
+  time_string[0] = time_now_s / 60 / 10 + '0';
+  time_string[1] = time_now_s / 60 % 10 + '0';
+  time_string[3] = time_now_s % 60 / 10 + '0';
+  time_string[4] = time_now_s % 60 % 10 + '0';
+
+  paint.SetWidth(32);
+  paint.SetHeight(96);
+  paint.SetRotate(ROTATE_270);
+
+  paint.Clear(UNCOLORED);
+  paint.DrawStringAt(0, 4, time_string, &Font24, COLORED);
+  epd.SetFrameMemory(paint.GetImage(), 80, 72, paint.GetWidth(), paint.GetHeight());
+  epd.DisplayFrame();
+
+  delay(500);
+}
+

1.54inch_e-paper_code/arduino/epd1in54-demo/epd1in54.cpp

@@ -0,0 +1,279 @@
+/**
+ *  @filename   :   epd1in54.cpp
+ *  @brief      :   Implements for e-paper library
+ *  @author     :   Yehui from Waveshare
+ *
+ *  Copyright (C) Waveshare     September 5 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.
+ */
+
+#include <stdlib.h>
+#include "epd1in54.h"
+
+Epd::~Epd() {
+};
+
+Epd::Epd() {
+    reset_pin = RST_PIN;
+    dc_pin = DC_PIN;
+    cs_pin = CS_PIN;
+    busy_pin = BUSY_PIN;
+    width = EPD_WIDTH;
+    height = EPD_HEIGHT;
+};
+
+int Epd::Init(const unsigned char* lut) {
+    /* this calls the peripheral hardware interface, see epdif */
+    if (IfInit() != 0) {
+        return -1;
+    }
+    /* EPD hardware init start */
+    this->lut = lut;
+    Reset();
+    SendCommand(DRIVER_OUTPUT_CONTROL);
+    SendData((EPD_HEIGHT - 1) & 0xFF);
+    SendData(((EPD_HEIGHT - 1) >> 8) & 0xFF);
+    SendData(0x00);                     // GD = 0; SM = 0; TB = 0;
+    SendCommand(BOOSTER_SOFT_START_CONTROL);
+    SendData(0xD7);
+    SendData(0xD6);
+    SendData(0x9D);
+    SendCommand(WRITE_VCOM_REGISTER);
+    SendData(0xA8);                     // VCOM 7C
+    SendCommand(SET_DUMMY_LINE_PERIOD);
+    SendData(0x1A);                     // 4 dummy lines per gate
+    SendCommand(SET_GATE_TIME);
+    SendData(0x08);                     // 2us per line
+    SendCommand(DATA_ENTRY_MODE_SETTING);
+    SendData(0x03);                     // X increment; Y increment
+    SetLut(this->lut);
+    /* EPD hardware init end */
+    return 0;
+}
+
+/**
+ *  @brief: basic function for sending commands
+ */
+void Epd::SendCommand(unsigned char command) {
+    DigitalWrite(dc_pin, LOW);
+    SpiTransfer(command);
+}
+
+/**
+ *  @brief: basic function for sending data
+ */
+void Epd::SendData(unsigned char data) {
+    DigitalWrite(dc_pin, HIGH);
+    SpiTransfer(data);
+}
+
+/**
+ *  @brief: Wait until the busy_pin goes LOW
+ */
+void Epd::WaitUntilIdle(void) {
+    while(DigitalRead(busy_pin) == HIGH) {      //LOW: idle, HIGH: busy
+        DelayMs(100);
+    }      
+}
+
+/**
+ *  @brief: module reset.
+ *          often used to awaken the module in deep sleep,
+ *          see Epd::Sleep();
+ */
+void Epd::Reset(void) {
+    DigitalWrite(reset_pin, LOW);                //module reset    
+    DelayMs(200);
+    DigitalWrite(reset_pin, HIGH);
+    DelayMs(200);    
+}
+
+/**
+ *  @brief: set the look-up table register
+ */
+void Epd::SetLut(const unsigned char* lut) {
+    this->lut = lut;
+    SendCommand(WRITE_LUT_REGISTER);
+    /* the length of look-up table is 30 bytes */
+    for (int i = 0; i < 30; i++) {
+        SendData(this->lut[i]);
+    }
+}
+
+/**
+ *  @brief: put an image buffer to the frame memory.
+ *          this won't update the display.
+ */
+void Epd::SetFrameMemory(
+    const unsigned char* image_buffer,
+    int x,
+    int y,
+    int image_width,
+    int image_height
+) {
+    int x_end;
+    int y_end;
+
+    if (
+        image_buffer == NULL ||
+        x < 0 || image_width < 0 ||
+        y < 0 || image_height < 0
+    ) {
+        return;
+    }
+    /* x point must be the multiple of 8 or the last 3 bits will be ignored */
+    x &= 0xF8;
+    image_width &= 0xF8;
+    if (x + image_width >= this->width) {
+        x_end = this->width - 1;
+    } else {
+        x_end = x + image_width - 1;
+    }
+    if (y + image_height >= this->height) {
+        y_end = this->height - 1;
+    } else {
+        y_end = y + image_height - 1;
+    }
+    SetMemoryArea(x, y, x_end, y_end);
+    SetMemoryPointer(x, y);
+    SendCommand(WRITE_RAM);
+    /* send the image data */
+    for (int j = 0; j < y_end - y + 1; j++) {
+        for (int i = 0; i < (x_end - x + 1) / 8; i++) {
+            SendData(image_buffer[i + j * (image_width / 8)]);
+        }
+    }
+}
+
+/**
+ *  @brief: put an image buffer to the frame memory.
+ *          this won't update the display.
+ *
+ *          Question: When do you use this function instead of 
+ *          void SetFrameMemory(
+ *              const unsigned char* image_buffer,
+ *              int x,
+ *              int y,
+ *              int image_width,
+ *              int image_height
+ *          );
+ *          Answer: SetFrameMemory with parameters only reads image data
+ *          from the RAM but not from the flash in AVR chips (for AVR chips,
+ *          you have to use the function pgm_read_byte to read buffers 
+ *          from the flash).
+ */
+void Epd::SetFrameMemory(const unsigned char* image_buffer) {
+    SetMemoryArea(0, 0, this->width - 1, this->height - 1);
+    SetMemoryPointer(0, 0);
+    SendCommand(WRITE_RAM);
+    /* send the image data */
+    for (int i = 0; i < this->width / 8 * this->height; i++) {
+        SendData(pgm_read_byte(&image_buffer[i]));
+    }
+}
+
+/**
+ *  @brief: clear the frame memory with the specified color.
+ *          this won't update the display.
+ */
+void Epd::ClearFrameMemory(unsigned char color) {
+    SetMemoryArea(0, 0, this->width - 1, this->height - 1);
+    SetMemoryPointer(0, 0);
+    SendCommand(WRITE_RAM);
+    /* send the color data */
+    for (int i = 0; i < this->width / 8 * this->height; i++) {
+        SendData(color);
+    }
+}
+
+/**
+ *  @brief: update the display
+ *          there are 2 memory areas embedded in the e-paper display
+ *          but once this function is called,
+ *          the the next action of SetFrameMemory or ClearFrame will 
+ *          set the other memory area.
+ */
+void Epd::DisplayFrame(void) {
+    SendCommand(DISPLAY_UPDATE_CONTROL_2);
+    SendData(0xC4);
+    SendCommand(MASTER_ACTIVATION);
+    SendCommand(TERMINATE_FRAME_READ_WRITE);
+    WaitUntilIdle();
+}
+
+/**
+ *  @brief: private function to specify the memory area for data R/W
+ */
+void Epd::SetMemoryArea(int x_start, int y_start, int x_end, int y_end) {
+    SendCommand(SET_RAM_X_ADDRESS_START_END_POSITION);
+    /* x point must be the multiple of 8 or the last 3 bits will be ignored */
+    SendData((x_start >> 3) & 0xFF);
+    SendData((x_end >> 3) & 0xFF);
+    SendCommand(SET_RAM_Y_ADDRESS_START_END_POSITION);
+    SendData(y_start & 0xFF);
+    SendData((y_start >> 8) & 0xFF);
+    SendData(y_end & 0xFF);
+    SendData((y_end >> 8) & 0xFF);
+}
+
+/**
+ *  @brief: private function to specify the start point for data R/W
+ */
+void Epd::SetMemoryPointer(int x, int y) {
+    SendCommand(SET_RAM_X_ADDRESS_COUNTER);
+    /* x point must be the multiple of 8 or the last 3 bits will be ignored */
+    SendData((x >> 3) & 0xFF);
+    SendCommand(SET_RAM_Y_ADDRESS_COUNTER);
+    SendData(y & 0xFF);
+    SendData((y >> 8) & 0xFF);
+    WaitUntilIdle();
+}
+
+/**
+ *  @brief: After this command is transmitted, the chip would enter the 
+ *          deep-sleep mode to save power. 
+ *          The deep sleep mode would return to standby by hardware reset. 
+ *          You can use Epd::Init() to awaken
+ */
+void Epd::Sleep() {
+    SendCommand(DEEP_SLEEP_MODE);
+    WaitUntilIdle();
+}
+
+const unsigned char lut_full_update[] =
+{
+    0x02, 0x02, 0x01, 0x11, 0x12, 0x12, 0x22, 0x22, 
+    0x66, 0x69, 0x69, 0x59, 0x58, 0x99, 0x99, 0x88, 
+    0x00, 0x00, 0x00, 0x00, 0xF8, 0xB4, 0x13, 0x51, 
+    0x35, 0x51, 0x51, 0x19, 0x01, 0x00
+};
+
+const unsigned char lut_partial_update[] =
+{
+    0x10, 0x18, 0x18, 0x08, 0x18, 0x18, 0x08, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x13, 0x14, 0x44, 0x12, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+};
+
+
+/* END OF FILE */
+
+

1.54inch_e-paper_code/arduino/epd1in54-demo/epd1in54.h

@@ -0,0 +1,100 @@
+/**
+ *  @filename   :   epd1in54.h
+ *  @brief      :   Header file for e-paper display library epd1in54.cpp
+ *  @author     :   Yehui from Waveshare
+ *  
+ *  Copyright (C) Waveshare     September 5 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"
+
+// Display resolution
+#define EPD_WIDTH       200
+#define EPD_HEIGHT      200
+
+// 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
+
+extern const unsigned char lut_full_update[];
+extern const unsigned char lut_partial_update[];
+
+class Epd : EpdIf {
+public:
+    unsigned long width;
+    unsigned long height;
+
+    Epd();
+    ~Epd();
+    int  Init(const unsigned char* lut);
+    void SendCommand(unsigned char command);
+    void SendData(unsigned char data);
+    void WaitUntilIdle(void);
+    void Reset(void);
+    void SetFrameMemory(
+        const unsigned char* image_buffer,
+        int x,
+        int y,
+        int image_width,
+        int image_height
+    );
+    void SetFrameMemory(const unsigned char* image_buffer);
+    void ClearFrameMemory(unsigned char color);
+    void DisplayFrame(void);
+    void Sleep(void);
+
+private:
+    unsigned int reset_pin;
+    unsigned int dc_pin;
+    unsigned int cs_pin;
+    unsigned int busy_pin;
+    const unsigned char* lut;
+
+    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);
+};
+
+#endif /* EPD1IN54_H */
+
+/* END OF FILE */

1.54inch_e-paper_code/arduino/epd1in54-demo/imagedata.cpp

@@ -0,0 +1,344 @@
+/**
+ *  @filename   :   imagedata.cpp
+ *  @brief      :   data file for epd demo
+ *
+ *  Copyright (C) Waveshare     September 5 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.
+ */
+
+#include "imagedata.h"
+#include <avr/pgmspace.h>
+
+const unsigned char IMAGE_DATA[] PROGMEM = {
+/* 0X00,0X01,0XC8,0X00,0XC8,0X00, */
+0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0X8F,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,
+0XF1,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,
+0XFF,0X8F,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XF1,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,
+0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0X8F,0XFF,0XFF,0XFF,0XFF,0XFF,
+0XFF,0XFF,0XF1,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,
+0XFF,0XFF,0XFF,0X8F,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XF1,0XFE,0X01,0XFF,0XFF,
+0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0X8F,0XFF,0XFF,0XFF,
+0XFF,0XFF,0XFF,0XFF,0XF1,0XF8,0X00,0X7F,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XF7,0XFF,
+0X3F,0XFF,0XFF,0XFF,0XFF,0X8F,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XF1,0XF0,0X00,
+0X3F,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XE1,0XFE,0X1F,0XFF,0XFF,0XFF,0XFF,0X8F,0XFF,
+0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XF1,0XF0,0X00,0X1F,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,
+0XE3,0XFF,0X1F,0XFF,0XFF,0XFF,0XFF,0X8F,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XF1,
+0XE0,0X00,0X1F,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XE3,0XFF,0X9F,0XFF,0XFF,0XFF,0XFF,
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+0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,
+};

1.54inch_e-paper_code/arduino/epd1in54-demo/imagedata.h

@@ -0,0 +1,30 @@
+/**
+ *  @filename   :   imagedata.h
+ *  @brief      :   head file for imagedata.cpp
+ *
+ *  Copyright (C) Waveshare     September 5 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.
+ */
+
+extern const unsigned char IMAGE_DATA[];
+
+/* FILE END */
+
+

1.54inch_e-paper_code/arduino/libraries/epdif.cpp

@@ -0,0 +1,65 @@
+/**
+ *  @filename   :   epdif.cpp
+ *  @brief      :   Implements EPD interface functions
+ *                  Users have to implement all the functions in epdif.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.
+ */
+
+#include "epdif.h"
+#include <spi.h>
+
+EpdIf::EpdIf() {
+};
+
+EpdIf::~EpdIf() {
+};
+
+void EpdIf::DigitalWrite(int pin, int value) {
+    digitalWrite(pin, value);
+}
+
+int EpdIf::DigitalRead(int pin) {
+    return digitalRead(pin);
+}
+
+void EpdIf::DelayMs(unsigned int delaytime) {
+    delay(delaytime);
+}
+
+void EpdIf::SpiTransfer(unsigned char data) {
+    digitalWrite(CS_PIN, LOW);
+    SPI.transfer(data);
+    digitalWrite(CS_PIN, HIGH);
+}
+
+int EpdIf::IfInit(void) {
+    pinMode(CS_PIN, OUTPUT);
+    pinMode(RST_PIN, OUTPUT);
+    pinMode(DC_PIN, OUTPUT);
+    pinMode(BUSY_PIN, INPUT); 
+
+    SPI.begin();
+    SPI.beginTransaction(SPISettings(2000000, MSBFIRST, SPI_MODE0));
+    return 0;
+}
+

1.54inch_e-paper_code/arduino/libraries/epdif.h

@@ -0,0 +1,51 @@
+/**
+ *  @filename   :   epdif.h
+ *  @brief      :   Header file of epdif.cpp providing EPD interface functions
+ *                  Users have to implement all the functions in epdif.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 EPDIF_H
+#define EPDIF_H
+
+#include <arduino.h>
+
+// Pin definition
+#define RST_PIN         8
+#define DC_PIN          9
+#define CS_PIN          10
+#define BUSY_PIN        7
+
+class EpdIf {
+public:
+    EpdIf(void);
+    ~EpdIf(void);
+
+    static int  IfInit(void);
+    static void DigitalWrite(int pin, int value); 
+    static int  DigitalRead(int pin);
+    static void DelayMs(unsigned int delaytime);
+    static void SpiTransfer(unsigned char data);
+};
+
+#endif

1.54inch_e-paper_code/arduino/libraries/epdpaint.cpp

@@ -0,0 +1,342 @@
+/**
+ *  @filename   :   epdpaint.cpp
+ *  @brief      :   Paint tools
+ *  @author     :   Yehui from Waveshare
+ *  
+ *  Copyright (C) Waveshare     September 9 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.
+ */
+
+#include <avr/pgmspace.h>
+#include "epdpaint.h"
+
+Paint::Paint(unsigned char* image, int width, int height) {
+    this->rotate = ROTATE_0;
+    this->image = image;
+    /* 1 byte = 8 pixels, so the width should be the multiple of 8 */
+    this->width = width % 8 ? width + 8 - (width % 8) : width;
+    this->height = height;
+}
+
+Paint::~Paint() {
+}
+
+/**
+ *  @brief: clear the image
+ */
+void Paint::Clear(int colored) {
+    for (int x = 0; x < this->width; x++) {
+        for (int y = 0; y < this->height; y++) {
+            DrawAbsolutePixel(x, y, colored);
+        }
+    }
+}
+
+/**
+ *  @brief: this draws a pixel by absolute coordinates.
+ *          this function won't be affected by the rotate parameter.
+ */
+void Paint::DrawAbsolutePixel(int x, int y, int colored) {
+    if (x < 0 || x >= this->width || y < 0 || y >= this->height) {
+        return;
+    }
+    if (IF_INVERT_COLOR) {
+        if (colored) {
+            image[(x + y * this->width) / 8] |= 0x80 >> (x % 8);
+        } else {
+            image[(x + y * this->width) / 8] &= ~(0x80 >> (x % 8));
+        }
+    } else {
+        if (colored) {
+            image[(x + y * this->width) / 8] &= ~(0x80 >> (x % 8));
+        } else {
+            image[(x + y * this->width) / 8] |= 0x80 >> (x % 8);
+        }
+    }
+}
+
+/**
+ *  @brief: Getters and Setters
+ */
+unsigned char* Paint::GetImage(void) {
+    return this->image;
+}
+
+int Paint::GetWidth(void) {
+    return this->width;
+}
+
+void Paint::SetWidth(int width) {
+    this->width = width % 8 ? width + 8 - (width % 8) : width;
+}
+
+int Paint::GetHeight(void) {
+    return this->height;
+}
+
+void Paint::SetHeight(int height) {
+    this->height = height;
+}
+
+int Paint::GetRotate(void) {
+    return this->rotate;
+}
+
+void Paint::SetRotate(int rotate){
+    this->rotate = rotate;
+}
+
+/**
+ *  @brief: this draws a pixel by the coordinates
+ */
+void Paint::DrawPixel(int x, int y, int colored) {
+    int point_temp;
+    if (this->rotate == ROTATE_0) {
+        if(x < 0 || x >= this->width || y < 0 || y >= this->height) {
+            return;
+        }
+        DrawAbsolutePixel(x, y, colored);
+    } else if (this->rotate == ROTATE_90) {
+        if(x < 0 || x >= this->height || y < 0 || y >= this->width) {
+          return;
+        }
+        point_temp = x;
+        x = this->width - y;
+        y = point_temp;
+        DrawAbsolutePixel(x, y, colored);
+    } else if (this->rotate == ROTATE_180) {
+        if(x < 0 || x >= this->width || y < 0 || y >= this->height) {
+          return;
+        }
+        x = this->width - x;
+        y = this->height - y;
+        DrawAbsolutePixel(x, y, colored);
+    } else if (this->rotate == ROTATE_270) {
+        if(x < 0 || x >= this->height || y < 0 || y >= this->width) {
+          return;
+        }
+        point_temp = x;
+        x = y;
+        y = this->height - point_temp;
+        DrawAbsolutePixel(x, y, colored);
+    }
+}
+
+/**
+ *  @brief: this draws a charactor on the frame buffer but not refresh
+ */
+void Paint::DrawCharAt(int x, int y, char ascii_char, sFONT* font, int colored) {
+    int i, j;
+    unsigned int char_offset = (ascii_char - ' ') * font->Height * (font->Width / 8 + (font->Width % 8 ? 1 : 0));
+    const unsigned char* ptr = &font->table[char_offset];
+
+    for (j = 0; j < font->Height; j++) {
+        for (i = 0; i < font->Width; i++) {
+            if (pgm_read_byte(ptr) & (0x80 >> (i % 8))) {
+                DrawPixel(x + i, y + j, colored);
+            }
+            if (i % 8 == 7) {
+                ptr++;
+            }
+        }
+        if (font->Width % 8 != 0) {
+            ptr++;
+        }
+    }
+}
+
+/**
+*  @brief: this displays a string on the frame buffer but not refresh
+*/
+void Paint::DrawStringAt(int x, int y, const char* text, sFONT* font, int colored) {
+    const char* p_text = text;
+    unsigned int counter = 0;
+    int refcolumn = x;
+    
+    /* Send the string character by character on EPD */
+    while (*p_text != 0) {
+        /* Display one character on EPD */
+        DrawCharAt(refcolumn, y, *p_text, font, colored);
+        /* Decrement the column position by 16 */
+        refcolumn += font->Width;
+        /* Point on the next character */
+        p_text++;
+        counter++;
+    }
+}
+
+/**
+*  @brief: this draws a line on the frame buffer
+*/
+void Paint::DrawLine(int x0, int y0, int x1, int y1, int colored) {
+    /* Bresenham algorithm */
+    int dx = x1 - x0 >= 0 ? x1 - x0 : x0 - x1;
+    int sx = x0 < x1 ? 1 : -1;
+    int dy = y1 - y0 <= 0 ? y1 - y0 : y0 - y1;
+    int sy = y0 < y1 ? 1 : -1;
+    int err = dx + dy;
+
+    while((x0 != x1) && (y0 != y1)) {
+        DrawPixel(x0, y0 , colored);
+        if (2 * err >= dy) {     
+            err += dy;
+            x0 += sx;
+        }
+        if (2 * err <= dx) {
+            err += dx; 
+            y0 += sy;
+        }
+    }
+}
+
+/**
+*  @brief: this draws a horizontal line on the frame buffer
+*/
+void Paint::DrawHorizontalLine(int x, int y, int line_width, int colored) {
+    int i;
+    for (i = x; i < x + line_width; i++) {
+        DrawPixel(i, y, colored);
+    }
+}
+
+/**
+*  @brief: this draws a vertical line on the frame buffer
+*/
+void Paint::DrawVerticalLine(int x, int y, int line_height, int colored) {
+    int i;
+    for (i = y; i < y + line_height; i++) {
+        DrawPixel(x, i, colored);
+    }
+}
+
+/**
+*  @brief: this draws a rectangle
+*/
+void Paint::DrawRectangle(int x0, int y0, int x1, int y1, int colored) {
+    int min_x, min_y, max_x, max_y;
+    min_x = x1 > x0 ? x0 : x1;
+    max_x = x1 > x0 ? x1 : x0;
+    min_y = y1 > y0 ? y0 : y1;
+    max_y = y1 > y0 ? y1 : y0;
+    
+    DrawHorizontalLine(min_x, min_y, max_x - min_x + 1, colored);
+    DrawHorizontalLine(min_x, max_y, max_x - min_x + 1, colored);
+    DrawVerticalLine(min_x, min_y, max_y - min_y + 1, colored);
+    DrawVerticalLine(max_x, min_y, max_y - min_y + 1, colored);
+}
+
+/**
+*  @brief: this draws a filled rectangle
+*/
+void Paint::DrawFilledRectangle(int x0, int y0, int x1, int y1, int colored) {
+    int min_x, min_y, max_x, max_y;
+    int i;
+    min_x = x1 > x0 ? x0 : x1;
+    max_x = x1 > x0 ? x1 : x0;
+    min_y = y1 > y0 ? y0 : y1;
+    max_y = y1 > y0 ? y1 : y0;
+    
+    for (i = min_x; i <= max_x; i++) {
+      DrawVerticalLine(i, min_y, max_y - min_y + 1, colored);
+    }
+}
+
+/**
+*  @brief: this draws a circle
+*/
+void Paint::DrawCircle(int x, int y, int radius, int colored) {
+    /* Bresenham algorithm */
+    int x_pos = -radius;
+    int y_pos = 0;
+    int err = 2 - 2 * radius;
+    int e2;
+
+    do {
+        DrawPixel(x - x_pos, y + y_pos, colored);
+        DrawPixel(x + x_pos, y + y_pos, colored);
+        DrawPixel(x + x_pos, y - y_pos, colored);
+        DrawPixel(x - x_pos, y - y_pos, colored);
+        e2 = err;
+        if (e2 <= y_pos) {
+            err += ++y_pos * 2 + 1;
+            if(-x_pos == y_pos && e2 <= x_pos) {
+              e2 = 0;
+            }
+        }
+        if (e2 > x_pos) {
+            err += ++x_pos * 2 + 1;
+        }
+    } while (x_pos <= 0);
+}
+
+/**
+*  @brief: this draws a filled circle
+*/
+void Paint::DrawFilledCircle(int x, int y, int radius, int colored) {
+    /* Bresenham algorithm */
+    int x_pos = -radius;
+    int y_pos = 0;
+    int err = 2 - 2 * radius;
+    int e2;
+
+    do {
+        DrawPixel(x - x_pos, y + y_pos, colored);
+        DrawPixel(x + x_pos, y + y_pos, colored);
+        DrawPixel(x + x_pos, y - y_pos, colored);
+        DrawPixel(x - x_pos, y - y_pos, colored);
+        DrawHorizontalLine(x + x_pos, y + y_pos, 2 * (-x_pos) + 1, colored);
+        DrawHorizontalLine(x + x_pos, y - y_pos, 2 * (-x_pos) + 1, colored);
+        e2 = err;
+        if (e2 <= y_pos) {
+            err += ++y_pos * 2 + 1;
+            if(-x_pos == y_pos && e2 <= x_pos) {
+                e2 = 0;
+            }
+        }
+        if(e2 > x_pos) {
+            err += ++x_pos * 2 + 1;
+        }
+    } while(x_pos <= 0);
+}
+
+/* END OF FILE */
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+

1.54inch_e-paper_code/arduino/libraries/epdpaint.h

@@ -0,0 +1,75 @@
+/**
+ *  @filename   :   epdpaint.h
+ *  @brief      :   Header file for epdpaint.cpp
+ *  @author     :   Yehui from Waveshare
+ *  
+ *  Copyright (C) Waveshare     July 28 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 EPDPAINT_H
+#define EPDPAINT_H
+
+// Display orientation
+#define ROTATE_0            0
+#define ROTATE_90           1
+#define ROTATE_180          2
+#define ROTATE_270          3
+
+// Color inverse. 1 or 0 = set or reset a bit if set a colored pixel
+#define IF_INVERT_COLOR     1
+
+#include "fonts.h"
+
+class Paint {
+public:
+    Paint(unsigned char* image, int width, int height);
+    ~Paint();
+    void Clear(int colored);
+    int  GetWidth(void);
+    void SetWidth(int width);
+    int  GetHeight(void);
+    void SetHeight(int height);
+    int  GetRotate(void);
+    void SetRotate(int rotate);
+    unsigned char* GetImage(void);
+    void DrawAbsolutePixel(int x, int y, int colored);
+    void DrawPixel(int x, int y, int colored);
+    void DrawCharAt(int x, int y, char ascii_char, sFONT* font, int colored);
+    void DrawStringAt(int x, int y, const char* text, sFONT* font, int colored);
+    void DrawLine(int x0, int y0, int x1, int y1, int colored);
+    void DrawHorizontalLine(int x, int y, int width, int colored);
+    void DrawVerticalLine(int x, int y, int height, int colored);
+    void DrawRectangle(int x0, int y0, int x1, int y1, int colored);
+    void DrawFilledRectangle(int x0, int y0, int x1, int y1, int colored);
+    void DrawCircle(int x, int y, int radius, int colored);
+    void DrawFilledCircle(int x, int y, int radius, int colored);
+
+private:
+    unsigned char* image;
+    int width;
+    int height;
+    int rotate;
+};
+
+#endif
+
+/* END OF FILE */
+