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KacperLa 2026-01-15 10:21:39 -05:00
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e-Paper/Arduino/epd5in79b/epd5in79b.cpp Normal file
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/**
* @filename : epd5in79b.h
* @brief : Header file for e-paper library epd5in83.cpp
* @author : MyMX from Waveshare
*
* Copyright (C) Waveshare 2024/03/06
*
* 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 <stdlib.h>
#include "epd5in79b.h"
Epd::~Epd() {
};
Epd::Epd() {
reset_pin = RST_PIN;
dc_pin = DC_PIN;
cs_pin = CS_PIN;
busy_pin = BUSY_PIN;
width = EPD_WIDTH;
height = EPD_HEIGHT;
};
int Epd::Init(void) {
if (IfInit() != 0) {
return -1;
}
Reset();
ReadBusy(); //waiting for the electronic paper IC to release the idle signal
SendCommand(0x12); //POWER ON
ReadBusy(); //waiting for the electronic paper IC to release the idle signal
SendCommand(0x11);
SendData(0x01);
SendCommand(0x44); // Set Ram X- address Start / End position
SendData(0x00); // XStart, POR = 00h
SendData(0x31); //400/8-1
SendCommand(0x45); // Set Ram Y- address Start / End position
SendData(0x0f);
SendData(0x01); //300-1
SendData(0x00); // YEnd L
SendData(0x00); // YEnd H
SendCommand(0x4e);
SendData(0x00);
SendCommand(0x4f);
SendData(0x0f);
SendData(0x01);
SendCommand(0x91);
SendData(0x00);
SendCommand(0xC4); // Set Ram X- address Start / End position
SendData(0x31); // XStart, POR = 00h
SendData(0x00); //400/8-1
SendCommand(0xC5); // Set Ram Y- address Start / End position
SendData(0x0f);
SendData(0x01); //300-1
SendData(0x00); // YEnd L
SendData(0x00); // YEnd H
SendCommand(0xCe);
SendData(0x31);
SendCommand(0xCf);
SendData(0x0f);
SendData(0x01);
return 0;
}
/**
* @brief: basic function for sending commands
*/
void Epd::SendCommand(unsigned char command) {
DigitalWrite(dc_pin, LOW);
SpiTransfer(command);
}
/**
* @brief: basic function for sending data
*/
void Epd::SendData(unsigned char data) {
DigitalWrite(dc_pin, HIGH);
SpiTransfer(data);
}
/**
* @brief: Wait until the busy_pin goes HIGH
*/
void Epd::ReadBusy(void) {
while(DigitalRead(busy_pin) == 1) { //0: busy, 1: idle
DelayMs(100);
}
}
/**
* @brief: module reset.
* often used to awaken the module in deep sleep,
* see Epd::Sleep();
*/
void Epd::Reset(void) {
DigitalWrite(reset_pin, LOW); //module reset
DelayMs(200);
DigitalWrite(reset_pin, HIGH);
DelayMs(200);
}
/******************************************************************************
function : Turn On Display
parameter:
******************************************************************************/
void Epd::TurnOnDisplay(void)
{
SendCommand(0x22); //Display Update Control
SendData(0xF7);
SendCommand(0x20); //Activate Display Update Sequence
ReadBusy();
}
void Epd::Display(const UBYTE *blackimage, const UBYTE *ryimage) {
int Width, Width1, Height;
Width =(width % 16 == 0)?(width / 16 ):(width / 16 + 1);
Width1 =(width % 8 == 0)?(width / 8 ):(width / 8 + 1);
Height = height;
// M part 396*272
SendCommand(0x24);
for (int j = 0; j < Height; j++) {
for (int i = 0; i < Width; i++) {
SendData(blackimage[j * Width1 + i]);
}
}
SendCommand(0X26);
for (int j = 0; j < Height; j++) {
for (int i = 0; i < Width; i++) {
SendData(~ryimage[j * Width1 + i]);
}
}
// S part 396*272
SendCommand(0xA4);
for (int j = 0; j < Height; j++) {
for (int i = 0; i < Width; i++) {
SendData(blackimage[j * Width1 + i + Width - 1]);
}
}
SendCommand(0XA6);
for (int j = 0; j < Height; j++) {
for (int i = 0; i < Width; i++) {
SendData(~ryimage[j * Width1 + i + Width - 1]);
}
}
TurnOnDisplay();
}
void Epd::Displaypart(const unsigned char* image, unsigned char Block) {
int Width, Height;
Width =(width % 16 == 0)?(width / 16 ):(width / 16 + 1);
Height = height;
int k = 0;
if( Block == 0 )
{
// M part 396*272
SendCommand(0x24);
k = 0;
for (int j = 0; j < Height; j++) {
for (int i = 0; i < Width; i++) {
if(i < 37 && j < 152)
SendData((pgm_read_byte(&image[k++])));
else
SendData(0xff);
}
}
SendCommand(0X26);
for(int i=0; i<13600; i++)
{
SendData(0x00);
}
}
else
{
// M part 396*272
SendCommand(0xA4);
for(int i=0; i<13600; i++)
{
SendData(0xFF);
}
SendCommand(0XA6);
k = 0;
for (int j = 0; j < Height; j++) {
for (int i = 0; i < Width; i++) {
if(i < 37 && j < 152)
SendData(~(pgm_read_byte(&image[k++])));
else
SendData(0x00);
}
}
TurnOnDisplay();
}
}
void Epd::Clear(void) {
// M part 396*272
SendCommand(0x24);
for(int i=0; i<13600; i++)
{
SendData(0xFF);
}
SendCommand(0X26);
for(int i=0; i<13600; i++)
{
SendData(0x00);
}
// S part 396*272
SendCommand(0xA4);
for(int i=0; i<13600; i++)
{
SendData(0xFF);
}
SendCommand(0XA6);
for(int i=0; i<13600; i++)
{
SendData(0x00);
}
TurnOnDisplay();
}
void Epd::Sleep(void) {
SendCommand(0X10);
SendData(0x01);
}
/* END OF FILE */