Diff: main.cpp

Revision:

0:665e04c85d8d

Child:

1:d27a7e06c233

diff -r 000000000000 -r 665e04c85d8d main.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Sun Mar 25 12:14:55 2018 +0000
@@ -0,0 +1,162 @@
+/**
+ *  @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 "mbed.h"
+#include <epd1in54.h>
+#include <epdpaint.h>
+#include "imagedata.h"
+
+#define COLORED     0
+#define UNCOLORED   1
+
+Serial pc(USBTX, USBRX, 115200);
+DigitalOut reset_pin(PTC17);
+DigitalOut dc_pin(PTD5);
+DigitalOut cs_pin(PTD0);
+DigitalIn busy_pin(PTA13);
+SPI epaper(PTD2,PTD3,PTD1);  //MOSI, MISO, CLK
+DigitalOut myled(LED1);
+
+
+/**
+  * 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();
+
+  wait_ms(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();
+
+  wait_ms(500);
+}
+
+int main() {
+    setup()
+    
+    while(1) {
+        myled = 1;
+        wait(0.2);
+        myled = 0;
+        wait(0.2);
+    }
+}
+