143 lines
4.9 KiB
C++
143 lines
4.9 KiB
C++
/**
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* @filename : epd1in54-demo.ino
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* @brief : 1.54inch e-paper display demo
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* @author : Yehui from Waveshare
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*
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* Copyright (C) Waveshare September 5 2017
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*
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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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*
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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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*
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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 <epd1in54.h>
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#include <epdpaint.h>
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#include "imagedata.h"
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#define COLORED 0
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#define UNCOLORED 1
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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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unsigned char image[1024];
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Paint paint(image, 0, 0); // width should be the multiple of 8
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Epd epd;
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unsigned long time_start_ms;
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unsigned long time_now_s;
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void setup() {
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// put your setup code here, to run once:
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Serial.begin(9600);
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if (epd.Init(lut_full_update) != 0) {
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Serial.print("e-Paper init failed");
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return;
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}
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/**
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* there are 2 memory areas embedded in the e-paper display
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* and once the display is refreshed, the memory area will be auto-toggled,
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* i.e. the next action of SetFrameMemory will set the other memory area
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* therefore you have to clear the frame memory twice.
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*/
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epd.ClearFrameMemory(0xFF); // bit set = white, bit reset = black
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epd.DisplayFrame();
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epd.ClearFrameMemory(0xFF); // bit set = white, bit reset = black
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epd.DisplayFrame();
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paint.SetRotate(ROTATE_0);
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paint.SetWidth(200);
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paint.SetHeight(24);
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/* For simplicity, the arguments are explicit numerical coordinates */
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paint.Clear(COLORED);
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paint.DrawStringAt(30, 4, "Hello world!", &Font16, UNCOLORED);
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epd.SetFrameMemory(paint.GetImage(), 0, 10, paint.GetWidth(), paint.GetHeight());
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paint.Clear(UNCOLORED);
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paint.DrawStringAt(30, 4, "e-Paper Demo", &Font16, COLORED);
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epd.SetFrameMemory(paint.GetImage(), 0, 30, 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.SetFrameMemory(paint.GetImage(), 16, 60, 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.SetFrameMemory(paint.GetImage(), 120, 60, 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.SetFrameMemory(paint.GetImage(), 16, 130, 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.SetFrameMemory(paint.GetImage(), 120, 130, paint.GetWidth(), paint.GetHeight());
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epd.DisplayFrame();
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delay(2000);
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if (epd.Init(lut_partial_update) != 0) {
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Serial.print("e-Paper init failed");
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return;
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}
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/**
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* there are 2 memory areas embedded in the e-paper display
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* and once the display is refreshed, the memory area will be auto-toggled,
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* i.e. the next action of SetFrameMemory will set the other memory area
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* therefore you have to set the frame memory and refresh the display twice.
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*/
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epd.SetFrameMemory(IMAGE_DATA);
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epd.DisplayFrame();
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epd.SetFrameMemory(IMAGE_DATA);
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epd.DisplayFrame();
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time_start_ms = millis();
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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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time_now_s = (millis() - time_start_ms) / 1000;
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char time_string[] = {'0', '0', ':', '0', '0', '\0'};
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time_string[0] = time_now_s / 60 / 10 + '0';
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time_string[1] = time_now_s / 60 % 10 + '0';
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time_string[3] = time_now_s % 60 / 10 + '0';
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time_string[4] = time_now_s % 60 % 10 + '0';
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paint.SetWidth(32);
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paint.SetHeight(96);
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paint.SetRotate(ROTATE_270);
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paint.Clear(UNCOLORED);
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paint.DrawStringAt(0, 4, time_string, &Font24, COLORED);
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epd.SetFrameMemory(paint.GetImage(), 80, 72, paint.GetWidth(), paint.GetHeight());
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epd.DisplayFrame();
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delay(500);
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}
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