74 lines
2.2 KiB
Arduino
74 lines
2.2 KiB
Arduino
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#include <SPI.h>
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#include "epd2in9b.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(9600);
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Epd epd;
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if (epd.Init() != 0) {
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Serial.print("e-Paper init failed");
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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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unsigned char image[1024];
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Paint paint(image, 128, 18); //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", &Font12, COLORED);
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epd.SetPartialWindowBlack(paint.GetImage(), 24, 32, paint.GetWidth(), paint.GetHeight());
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paint.Clear(COLORED);
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paint.DrawStringAt(2, 2, "Hello world", &Font16, UNCOLORED);
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epd.SetPartialWindowRed(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.SetPartialWindowBlack(paint.GetImage(), 8, 120, 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.SetPartialWindowBlack(paint.GetImage(), 64, 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.SetPartialWindowRed(paint.GetImage(), 8, 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.SetPartialWindowRed(paint.GetImage(), 64, 200, paint.GetWidth(), paint.GetHeight());
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/* This displays the data from the SRAM in e-Paper module */
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epd.DisplayFrame();
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/* This displays an image */
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epd.DisplayFrame(IMAGE_BLACK, IMAGE_RED);
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/* Deep 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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