add arduino code

2.13inch_e-paper_d_code/arduino/fepd2in13-demo/fepd2in13-demo.ino

@@ -0,0 +1,65 @@
+/**
+ *  @filename   :   epd2in13-demo.ino
+ *  @brief      :   2.13inch e-paper display demo
+ *  @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 <SPI.h>
+#include "fepd2in13.h"
+#include "imagedata.h"
+
+/**
+  * 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.
+  */
+Epd epd;
+
+void setup()
+{
+    // put your setup code here, to run once:
+    Serial.begin(9600);
+    if (epd.Init() != 0) {
+        Serial.print("e-Paper init failed\n");
+        return;
+    }
+    //Serial.print("ClearFrameMemory\n");
+   // epd.ClearFrameMemory();   // bit set = white, bit reset = black
+
+    /**
+     *  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.
+     */
+    Serial.print("SetFrameMemory\n");
+    epd.SetFrameMemory(gImage_IMAGE);
+    Serial.print("DisplayFrame\n");
+    epd.DisplayFrame();
+}
+
+void loop()
+{
+}
+