116 lines
3.7 KiB
C++
116 lines
3.7 KiB
C++
/**
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@filename : epd2in7-demo.ino
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@brief : 2.7inch e-paper display demo
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@author : Yehui from Waveshare
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Copyright (C) Waveshare August 22 2017
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documnetation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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*/
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#include <SPI.h>
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#include "epd2in7.h"
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#include "imagedata.h"
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#include "epdpaint.h"
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#define COLORED 0
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#define UNCOLORED 1
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void setup() {
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// put your setup code here, to run once:
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Serial.begin(115200);
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Epd epd;
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Serial.print("e-Paper init\r\n");
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if (epd.Init() != 0) {
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Serial.print("e-Paper init failed\r\n");
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return;
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}
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/* This clears the SRAM of the e-paper display */
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epd.ClearFrame();
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/**
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Due to RAM not enough in Arduino UNO, a frame buffer is not allowed.
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In this case, a smaller image buffer is allocated and you have to
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update a partial display several times.
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1 byte = 8 pixels, therefore you have to set 8*N pixels at a time.
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*/
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#if 1
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unsigned char image[1024];
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Paint paint(image, 176, 24); //width should be the multiple of 8
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paint.Clear(UNCOLORED);
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paint.DrawStringAt(0, 0, "e-Paper Demo", &Font16, COLORED);
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epd.TransmitPartialData(paint.GetImage(), 16, 32, paint.GetWidth(), paint.GetHeight());
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paint.Clear(COLORED);
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paint.DrawStringAt(20, 5, "Hello world!", &Font16, UNCOLORED);
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epd.TransmitPartialData(paint.GetImage(), 0, 64, paint.GetWidth(), paint.GetHeight());
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paint.SetWidth(64);
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paint.SetHeight(64);
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paint.Clear(UNCOLORED);
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paint.DrawRectangle(0, 0, 40, 50, COLORED);
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paint.DrawLine(0, 0, 40, 50, COLORED);
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paint.DrawLine(40, 0, 0, 50, COLORED);
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epd.TransmitPartialData(paint.GetImage(), 10, 130, paint.GetWidth(), paint.GetHeight());
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paint.Clear(UNCOLORED);
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paint.DrawCircle(32, 32, 30, COLORED);
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epd.TransmitPartialData(paint.GetImage(), 90, 120, paint.GetWidth(), paint.GetHeight());
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paint.Clear(UNCOLORED);
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paint.DrawFilledRectangle(0, 0, 40, 50, COLORED);
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epd.TransmitPartialData(paint.GetImage(), 10, 200, paint.GetWidth(), paint.GetHeight());
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paint.Clear(UNCOLORED);
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paint.DrawFilledCircle(32, 32, 30, COLORED);
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epd.TransmitPartialData(paint.GetImage(), 90, 190, paint.GetWidth(), paint.GetHeight());
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/* This displays the data from the SRAM in e-Paper module */
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Serial.print("show draw image\r\n");
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epd.DisplayFrame();
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delay(1000);
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#endif
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#if 1
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/* This displays an image */
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Serial.print("show 2-gray image\r\n");
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epd.DisplayFrame(IMAGE_DATA);
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delay(1000);
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#endif
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#if 1
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Serial.print("show 4-gray image\r\n");
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epd.Init_4Gray();
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epd.Display4Gray(IMAGE_DATA_4Gray);
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#endif
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/* Deep sleep */
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Serial.print("sleep...");
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epd.Sleep();
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}
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void loop() {
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// put your main code here, to run repeatedly:
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}
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