waveshareteam · shhds · Dec 22, 2023 · Dec 22, 2023
diff --git a/Arduino/epd2in66g/epd2in66g.cpp b/Arduino/epd2in66g/epd2in66g.cpp
@@ -0,0 +1,248 @@
+/**
+ *  @filename   :   epd2in66g.cpp
+ *  @brief      :   Implements for e-paper library
+ *  @author     :   Waveshare
+ *
+ *  Copyright (C) Waveshare     2022/08/17
+ *
+ * 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 "epd2in66g.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() {
+    /* this calls the peripheral hardware interface, see epdif */
+    if (IfInit() != 0) {
+        return -1;
+    }
+    Reset();
+    ReadBusyH();
+
+    SendCommand(0x4D);
+    SendData(0x78);
+
+    SendCommand(0x00);	//PSR
+    SendData(0x0F);
+    SendData(0x29);
+
+    SendCommand(0x01);	//PWRR
+    SendData(0x07);
+    SendData(0x00);
+
+    SendCommand(0x03);	//POFS
+    SendData(0x10);
+    SendData(0x54);
+    SendData(0x44);
+
+    SendCommand(0x06);	//BTST_P
+    SendData(0x05);
+    SendData(0x00);
+    SendData(0x3F);
+    SendData(0x0A);
+    SendData(0x25);
+    SendData(0x12);
+    SendData(0x1A); 
+
+    SendCommand(0x50);	//CDI
+    SendData(0x37);
+
+    SendCommand(0x60);	//TCON
+    SendData(0x02);
+    SendData(0x02);
+
+    SendCommand(0x61); //TRES
+    SendData(WIDTH/256);		// Source_BITS_H
+    SendData(WIDTH%256);		// Source_BITS_L
+    SendData(HEIGHT/256);			// Gate_BITS_H
+    SendData(HEIGHT%256); 		// Gate_BITS_L	
+
+    SendCommand(0xE7);
+    SendData(0x1C);
+
+    SendCommand(0xE3);	
+    SendData(0x22);
+
+    SendCommand(0xB4);
+    SendData(0xD0);
+    SendCommand(0xB5);
+    SendData(0x03);
+
+    SendCommand(0xE9);
+    SendData(0x01); 
+
+    SendCommand(0x30);
+    SendData(0x08);  
+
+    SendCommand(0x04);
+    ReadBusyH();
+    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::ReadBusyH(void) {
+    Serial.print("e-Paper busy H\r\n ");
+    while(DigitalRead(busy_pin) == LOW) {      //LOW: busy, HIGH: idle
+        DelayMs(5);
+    } 
+    Serial.print("e-Paper busy release H\r\n ");    
+}
+
+void Epd::ReadBusyL(void) {
+    Serial.print("e-Paper busy L\r\n ");
+    while(DigitalRead(busy_pin) == HIGH) {      //LOW: idle, HIGH: busy
+        DelayMs(5);
+    }      
+    Serial.print("e-Paper busy release L\r\n ");
+}
+
+/**
+ *  @brief: module reset.
+ *          often used to awaken the module in deep sleep,
+ *          see Epd::Sleep();
+ */
+void Epd::Reset(void) {
+    DigitalWrite(reset_pin, HIGH);
+    DelayMs(20);    
+    DigitalWrite(reset_pin, LOW);                //module reset    
+    DelayMs(2);
+    DigitalWrite(reset_pin, HIGH);
+    DelayMs(20);     
+}
+
+/******************************************************************************
+function :	Turn On Display
+parameter:
+******************************************************************************/
+void Epd::TurnOnDisplay(void)
+{
+    SendCommand(0x12); // DISPLAY_REFRESH
+    SendData(0x00);
+    ReadBusyH();
+}
+
+/******************************************************************************
+function :	Clear screen
+parameter:
+******************************************************************************/
+void Epd::Clear(UBYTE color)
+{
+    UWORD Width, Height;
+    Width = (WIDTH % 4 == 0)? (WIDTH / 4 ): (WIDTH / 4 + 1);
+    Height = HEIGHT;
+
+    SendCommand(0x10);
+    for (UWORD j = 0; j < Height; j++) {
+        for (UWORD i = 0; i < Width; i++) {
+            SendData((color<<6) | (color<<4) | (color<<2) | color);
+        }
+    }
+
+    TurnOnDisplay();
+}
+
+/******************************************************************************
+function :	Sends the image buffer in RAM to e-Paper and displays
+parameter:
+******************************************************************************/
+void Epd::Display(UBYTE *Image)
+{
+    UWORD Width, Height;
+    Width = (WIDTH % 4 == 0)? (WIDTH / 4 ): (WIDTH / 4 + 1);
+    Height = HEIGHT;
+
+    SendCommand(0x10);
+    for (UWORD j = 0; j < Height; j++) {
+        for (UWORD i = 0; i < Width; i++) {
+            SendData(pgm_read_byte(&Image[i + j * Width]));
+        }
+    }
+
+    TurnOnDisplay();
+}
+
+void Epd::Display_part(UBYTE *Image, UWORD xstart, UWORD ystart, UWORD image_width, UWORD image_height)
+{
+    UWORD Width, Height, i, j;
+    Width = (WIDTH % 4 == 0)? (WIDTH / 4 ): (WIDTH / 4 + 1);
+    Height = HEIGHT;
+
+    SendCommand(0x10);
+    for(i=0; i<Height; i++) {
+        for(j=0; j< Width; j++) {
+            if(i<image_height+ystart && i>=ystart && j<(image_width+xstart)/4 && j>=xstart/4) {
+              SendData(pgm_read_byte(&Image[(j-xstart/4) + (image_width/4*(i-ystart))]));
+            }
+			else {
+				SendData(0x55);
+			}
+		}
+    }
+
+
+    TurnOnDisplay();
+}
+
+/******************************************************************************
+function :	Enter sleep mode
+parameter:
+******************************************************************************/
+void Epd::Sleep(void)
+{
+    SendCommand(0x02); // POWER_OFF
+    SendData(0X00);
+    ReadBusyH();
+
+    SendCommand(0x07); // DEEP_SLEEP
+    SendData(0XA5);
+}
+
+/* END OF FILE */
+
+
diff --git a/Arduino/epd2in66g/epd2in66g.h b/Arduino/epd2in66g/epd2in66g.h
@@ -0,0 +1,74 @@
+/**
+ *  @filename   :   epd2in66g.h
+ *  @brief      :   Header file for e-paper display library epd4in37g.cpp
+ *  @author     :   Waveshare
+ *  
+ *  Copyright (C) Waveshare     2022/08/17
+ *
+ * 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 EPD2IN66G_H
+#define EPD2IN66G_H
+
+#include "epdif.h"
+
+// Display resolution
+#define EPD_WIDTH       184
+#define EPD_HEIGHT      360
+
+// Color
+#define  black   0x0
+#define  white   0x1
+#define  yellow  0x2
+#define  red     0x3
+
+#define UWORD   unsigned int
+#define UBYTE   unsigned char
+#define UDOUBLE unsigned long
+
+class Epd : EpdIf {
+public:
+    unsigned long WIDTH;
+    unsigned long HEIGHT;
+
+    Epd();
+    ~Epd();
+    int  Init();
+    void SendCommand(unsigned char command);
+    void SendData(unsigned char data);
+    void Reset(void);
+    void ReadBusyH(void);
+    void ReadBusyL(void);
+    void TurnOnDisplay(void);
+    void Clear(UBYTE color);
+    void Display(UBYTE *Image);
+    void Display_part(UBYTE *Image, UWORD xstart, UWORD ystart, UWORD image_width, UWORD image_height);
+    void Sleep(void);
+
+private:
+    unsigned int reset_pin;
+    unsigned int dc_pin;
+    unsigned int cs_pin;
+    unsigned int busy_pin;
+};
+
+#endif /* EPD4IN37_H */
+
+/* END OF FILE */
diff --git a/Arduino/epd2in66g/epd2in66g.ino b/Arduino/epd2in66g/epd2in66g.ino
@@ -0,0 +1,60 @@
+/**
+ *  @filename   :   epd2in66g-demo.ino
+ *  @brief      :   2.66inch e-Paper (G) display demo
+ *  @author     :   Waveshare
+ *
+ *  Copyright (C) Waveshare     2022/08/17
+ *
+ * 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 "epd2in66g.h"
+#include "imagedata.h"
+
+Epd epd;
+
+void setup() {
+  // put your setup code here, to run once:
+  Serial.begin(115200);
+  Serial.print("e-Paper init  \r\n");
+  if (epd.Init() != 0) {
+      Serial.print("e-Paper init failed");
+      return;
+  }
+
+  Serial.print("White \r\n");
+  epd.Clear(white);
+  delay(2000);
+
+  Serial.print("Small Image \r\n");
+  epd.Display_part(Image4color, 10, 96, 168, 168);
+  delay(2000);
+
+  Serial.print("Clear...\r\n");
+  epd.Clear(white);
+  delay(2000);
+
+  Serial.print("Goto Sleep...\r\n");
+  epd.Sleep();
+}
+
+void loop() {
+
+}