e-paper-display/bcm2835-1.71/e-Paper/Arduino/epd2in9bc/epd2in9bc.ino

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2024-01-31 22:04:09 +00:00
#include <SPI.h>
#include "epd2in9b.h"
#include "imagedata.h"
#include "epdpaint.h"
#define COLORED 0
#define UNCOLORED 1
void setup() {
// put your setup code here, to run once:
Serial.begin(9600);
Epd epd;
if (epd.Init() != 0) {
Serial.print("e-Paper init failed");
return;
}
/* This clears the SRAM of the e-paper display */
epd.ClearFrame();
/**
* 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, 128, 18); //width should be the multiple of 8
paint.Clear(UNCOLORED);
paint.DrawStringAt(0, 0, "e-Paper Demo", &Font12, COLORED);
epd.SetPartialWindowBlack(paint.GetImage(), 24, 32, paint.GetWidth(), paint.GetHeight());
paint.Clear(COLORED);
paint.DrawStringAt(2, 2, "Hello world", &Font16, UNCOLORED);
epd.SetPartialWindowRed(paint.GetImage(), 0, 64, 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.SetPartialWindowBlack(paint.GetImage(), 8, 120, paint.GetWidth(), paint.GetHeight());
paint.Clear(UNCOLORED);
paint.DrawCircle(32, 32, 30, COLORED);
epd.SetPartialWindowBlack(paint.GetImage(), 64, 120, paint.GetWidth(), paint.GetHeight());
paint.Clear(UNCOLORED);
paint.DrawFilledRectangle(0, 0, 40, 50, COLORED);
epd.SetPartialWindowRed(paint.GetImage(), 8, 200, paint.GetWidth(), paint.GetHeight());
paint.Clear(UNCOLORED);
paint.DrawFilledCircle(32, 32, 30, COLORED);
epd.SetPartialWindowRed(paint.GetImage(), 64, 200, paint.GetWidth(), paint.GetHeight());
/* This displays the data from the SRAM in e-Paper module */
epd.DisplayFrame();
/* This displays an image */
epd.DisplayFrame(IMAGE_BLACK, IMAGE_RED);
/* Deep sleep */
epd.Sleep();
}
void loop() {
// put your main code here, to run repeatedly:
}