Ein Eink Display ist ein Display was z.B. auch die Geräte von Amazons EBook Readern verwenden. Die brauchen halt nur Strom wenn das Display aktualisiert wird und wenn es dann angezeigt wird kann theoretisch der ESP32 oder was auch immer ausgeschalten werden. Display bleibt mit der angezeigten Sache halt Aktiv. Wenn man z.B. je Stunde was aktualisieren lässt z.B. Status von irgendwas benötigt man extrem wenig Strom.
Schaltbild ist die Verkabelung ? Kann gerne ein Foto davon machen aber hatte deswegen ja den Link von AZ-Delivery gepostet da dadrin steht wie ich es verkabelt habe. Hatte ich ja am Anfang erwähnt das ich danach vorgegangen bin.
/**
* @filename : EPD1in54ShowRunningTime.ino
* @brief : 1.54inch e-paper display demo
* @author : Yehui from Waveshare
*
* Copyright (C) Waveshare September 5 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 <EPD1in54.h>
#include <EPDPaint.h>
#include "imagedata.h"
#define COLORED 0
#define UNCOLORED 1
/**
* 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];
EPDPaint paint(image, 0, 0); // width should be the multiple of 8
EPD1in54 epd; // default reset: 33, dc: 25, cs: 26, busy: 27
// EPD1in54 epd(33, 25, 26, 27); // reset, dc, cs, busy
unsigned long timeStartMs;
unsigned long timeNowS;
unsigned long timeShowedS = 1000;
void setup() {
// put your setup code here, to run once:
Serial.begin(115200);
if (epd.init(lutFullUpdate) != 0) {
Serial.print("e-Paper init failed");
return;
}
/**
* 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 clear the frame memory twice.
*/
epd.clearFrameMemory(0xFF); // bit set = white, bit reset = black
epd.displayFrame();
epd.clearFrameMemory(0xFF); // bit set = white, bit reset = black
epd.displayFrame();
paint.setRotate(ROTATE_0);
paint.setWidth(200);
paint.setHeight(24);
/* For simplicity, the arguments are explicit numerical coordinates */
paint.clear(COLORED);
paint.drawStringAt(30, 4, "Hello world!", &Font16, UNCOLORED);
epd.setFrameMemory(paint.getImage(), 0, 10, paint.getWidth(), paint.getHeight());
paint.clear(UNCOLORED);
paint.drawStringAt(30, 4, "e-Paper Demo", &Font16, COLORED);
epd.setFrameMemory(paint.getImage(), 0, 30, 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.setFrameMemory(paint.getImage(), 16, 60, paint.getWidth(), paint.getHeight());
paint.clear(UNCOLORED);
paint.drawCircle(32, 32, 30, COLORED);
epd.setFrameMemory(paint.getImage(), 120, 60, paint.getWidth(), paint.getHeight());
paint.clear(UNCOLORED);
paint.drawFilledRectangle(0, 0, 40, 50, COLORED);
epd.setFrameMemory(paint.getImage(), 16, 130, paint.getWidth(), paint.getHeight());
paint.clear(UNCOLORED);
paint.drawFilledCircle(32, 32, 30, COLORED);
epd.setFrameMemory(paint.getImage(), 120, 130, paint.getWidth(), paint.getHeight());
epd.displayFrame();
delay(2000);
if (epd.init(lutPartialUpdate) != 0) {
Serial.print("e-Paper init failed");
return;
}
/**
* 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.
*/
epd.setFrameMemory(IMAGE_DATA);
epd.displayFrame();
epd.setFrameMemory(IMAGE_DATA);
epd.displayFrame();
timeStartMs = millis();
}
void loop() {
// put your main code here, to run repeatedly:
timeNowS = (millis() - timeStartMs) / 1000;
if (timeNowS != timeShowedS) {
timeShowedS = timeNowS;
updateTime(timeShowedS);
}
delay(20);
}
void updateTime(unsigned long seconds) {
char time_string[] = {'0', '0', ':', '0', '0', '\0'};
time_string[0] = seconds / 60 / 10 + '0';
time_string[1] = seconds / 60 % 10 + '0';
time_string[3] = seconds % 60 / 10 + '0';
time_string[4] = seconds % 60 % 10 + '0';
paint.setWidth(32);
paint.setHeight(96);
paint.setRotate(ROTATE_270);
paint.clear(UNCOLORED);
paint.drawStringAt(0, 4, time_string, &Font24, COLORED);
epd.setFrameMemory(paint.getImage(), 80, 72, paint.getWidth(), paint.getHeight());
epd.displayFrame();
}
Edit: Ist halt das Standard Script und habe halt nur die Pinbelegung geändert.
Wie halt im erwähnten Tutorial gesagt wurde.
Ansonsten zu 100% Original.