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This commit is contained in:
harald42 2018-03-06 21:42:44 +01:00
parent 46430fc77a
commit 02177f65e1
17 changed files with 10271 additions and 4 deletions
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2
examples/osd/arduino-epaper15/Makefile
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@ -11,7 +11,7 @@ CONTIKI_WITH_IPV6 = 1
CFLAGS += -DPROJECT_CONF_H=\"project-conf.h\"
PROJECT_SOURCEFILES += ${SKETCH}.cpp
PROJECT_SOURCEFILES += ${SKETCH}.cpp epd1in54.cpp epdif.cpp epdpaint.cpp font8.c font24.c font20.c font16.c font12.c imagedata.cpp
# automatically build RESTful resources
REST_RESOURCES_DIR = ./resources

279
examples/osd/arduino-epaper15/epd1in54.cpp Normal file
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/**
* @filename : epd1in54.cpp
* @brief : Implements for e-paper library
* @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 <stdlib.h>
#include "epd1in54.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(const unsigned char* lut) {
/* this calls the peripheral hardware interface, see epdif */
if (IfInit() != 0) {
return -1;
}
/* EPD hardware init start */
this->lut = lut;
Reset();
SendCommand(DRIVER_OUTPUT_CONTROL);
SendData((EPD_HEIGHT - 1) & 0xFF);
SendData(((EPD_HEIGHT - 1) >> 8) & 0xFF);
SendData(0x00); // GD = 0; SM = 0; TB = 0;
SendCommand(BOOSTER_SOFT_START_CONTROL);
SendData(0xD7);
SendData(0xD6);
SendData(0x9D);
SendCommand(WRITE_VCOM_REGISTER);
SendData(0xA8); // VCOM 7C
SendCommand(SET_DUMMY_LINE_PERIOD);
SendData(0x1A); // 4 dummy lines per gate
SendCommand(SET_GATE_TIME);
SendData(0x08); // 2us per line
SendCommand(DATA_ENTRY_MODE_SETTING);
SendData(0x03); // X increment; Y increment
SetLut(this->lut);
/* EPD hardware init end */
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 LOW
*/
void Epd::WaitUntilIdle(void) {
while(DigitalRead(busy_pin) == HIGH) { //LOW: idle, HIGH: busy
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);
}
/**
* @brief: set the look-up table register
*/
void Epd::SetLut(const unsigned char* lut) {
this->lut = lut;
SendCommand(WRITE_LUT_REGISTER);
/* the length of look-up table is 30 bytes */
for (int i = 0; i < 30; i++) {
SendData(this->lut[i]);
}
}
/**
* @brief: put an image buffer to the frame memory.
* this won't update the display.
*/
void Epd::SetFrameMemory(
const unsigned char* image_buffer,
int x,
int y,
int image_width,
int image_height
) {
int x_end;
int y_end;
if (
image_buffer == NULL ||
x < 0 || image_width < 0 ||
y < 0 || image_height < 0
) {
return;
}
/* x point must be the multiple of 8 or the last 3 bits will be ignored */
x &= 0xF8;
image_width &= 0xF8;
if (x + image_width >= this->width) {
x_end = this->width - 1;
} else {
x_end = x + image_width - 1;
}
if (y + image_height >= this->height) {
y_end = this->height - 1;
} else {
y_end = y + image_height - 1;
}
SetMemoryArea(x, y, x_end, y_end);
SetMemoryPointer(x, y);
SendCommand(WRITE_RAM);
/* send the image data */
for (int j = 0; j < y_end - y + 1; j++) {
for (int i = 0; i < (x_end - x + 1) / 8; i++) {
SendData(image_buffer[i + j * (image_width / 8)]);
}
}
}
/**
* @brief: put an image buffer to the frame memory.
* this won't update the display.
*
* Question: When do you use this function instead of
* void SetFrameMemory(
* const unsigned char* image_buffer,
* int x,
* int y,
* int image_width,
* int image_height
* );
* Answer: SetFrameMemory with parameters only reads image data
* from the RAM but not from the flash in AVR chips (for AVR chips,
* you have to use the function pgm_read_byte to read buffers
* from the flash).
*/
void Epd::SetFrameMemory(const unsigned char* image_buffer) {
SetMemoryArea(0, 0, this->width - 1, this->height - 1);
SetMemoryPointer(0, 0);
SendCommand(WRITE_RAM);
/* send the image data */
for (int i = 0; i < this->width / 8 * this->height; i++) {
SendData(pgm_read_byte(&image_buffer[i]));
}
}
/**
* @brief: clear the frame memory with the specified color.
* this won't update the display.
*/
void Epd::ClearFrameMemory(unsigned char color) {
SetMemoryArea(0, 0, this->width - 1, this->height - 1);
SetMemoryPointer(0, 0);
SendCommand(WRITE_RAM);
/* send the color data */
for (int i = 0; i < this->width / 8 * this->height; i++) {
SendData(color);
}
}
/**
* @brief: update the display
* there are 2 memory areas embedded in the e-paper display
* but once this function is called,
* the the next action of SetFrameMemory or ClearFrame will
* set the other memory area.
*/
void Epd::DisplayFrame(void) {
SendCommand(DISPLAY_UPDATE_CONTROL_2);
SendData(0xC4);
SendCommand(MASTER_ACTIVATION);
SendCommand(TERMINATE_FRAME_READ_WRITE);
WaitUntilIdle();
}
/**
* @brief: private function to specify the memory area for data R/W
*/
void Epd::SetMemoryArea(int x_start, int y_start, int x_end, int y_end) {
SendCommand(SET_RAM_X_ADDRESS_START_END_POSITION);
/* x point must be the multiple of 8 or the last 3 bits will be ignored */
SendData((x_start >> 3) & 0xFF);
SendData((x_end >> 3) & 0xFF);
SendCommand(SET_RAM_Y_ADDRESS_START_END_POSITION);
SendData(y_start & 0xFF);
SendData((y_start >> 8) & 0xFF);
SendData(y_end & 0xFF);
SendData((y_end >> 8) & 0xFF);
}
/**
* @brief: private function to specify the start point for data R/W
*/
void Epd::SetMemoryPointer(int x, int y) {
SendCommand(SET_RAM_X_ADDRESS_COUNTER);
/* x point must be the multiple of 8 or the last 3 bits will be ignored */
SendData((x >> 3) & 0xFF);
SendCommand(SET_RAM_Y_ADDRESS_COUNTER);
SendData(y & 0xFF);
SendData((y >> 8) & 0xFF);
WaitUntilIdle();
}
/**
* @brief: After this command is transmitted, the chip would enter the
* deep-sleep mode to save power.
* The deep sleep mode would return to standby by hardware reset.
* You can use Epd::Init() to awaken
*/
void Epd::Sleep() {
SendCommand(DEEP_SLEEP_MODE);
WaitUntilIdle();
}
const unsigned char lut_full_update[] =
{
0x02, 0x02, 0x01, 0x11, 0x12, 0x12, 0x22, 0x22,
0x66, 0x69, 0x69, 0x59, 0x58, 0x99, 0x99, 0x88,
0x00, 0x00, 0x00, 0x00, 0xF8, 0xB4, 0x13, 0x51,
0x35, 0x51, 0x51, 0x19, 0x01, 0x00
};
const unsigned char lut_partial_update[] =
{
0x10, 0x18, 0x18, 0x08, 0x18, 0x18, 0x08, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x13, 0x14, 0x44, 0x12,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
/* END OF FILE */

100
examples/osd/arduino-epaper15/epd1in54.h Normal file
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@ -0,0 +1,100 @@
/**
* @filename : epd1in54.h
* @brief : Header file for e-paper display library epd1in54.cpp
* @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.
*/
#ifndef EPD1IN54_H
#define EPD1IN54_H
#include "epdif.h"
// Display resolution
#define EPD_WIDTH 200
#define EPD_HEIGHT 200
// EPD1IN54 commands
#define DRIVER_OUTPUT_CONTROL 0x01
#define BOOSTER_SOFT_START_CONTROL 0x0C
#define GATE_SCAN_START_POSITION 0x0F
#define DEEP_SLEEP_MODE 0x10
#define DATA_ENTRY_MODE_SETTING 0x11
#define SW_RESET 0x12
#define TEMPERATURE_SENSOR_CONTROL 0x1A
#define MASTER_ACTIVATION 0x20
#define DISPLAY_UPDATE_CONTROL_1 0x21
#define DISPLAY_UPDATE_CONTROL_2 0x22
#define WRITE_RAM 0x24
#define WRITE_VCOM_REGISTER 0x2C
#define WRITE_LUT_REGISTER 0x32
#define SET_DUMMY_LINE_PERIOD 0x3A
#define SET_GATE_TIME 0x3B
#define BORDER_WAVEFORM_CONTROL 0x3C
#define SET_RAM_X_ADDRESS_START_END_POSITION 0x44
#define SET_RAM_Y_ADDRESS_START_END_POSITION 0x45
#define SET_RAM_X_ADDRESS_COUNTER 0x4E
#define SET_RAM_Y_ADDRESS_COUNTER 0x4F
#define TERMINATE_FRAME_READ_WRITE 0xFF
extern const unsigned char lut_full_update[];
extern const unsigned char lut_partial_update[];
class Epd : EpdIf {
public:
long width;
long height;
Epd();
~Epd();
int Init(const unsigned char* lut);
void SendCommand(unsigned char command);
void SendData(unsigned char data);
void WaitUntilIdle(void);
void Reset(void);
void SetFrameMemory(
const unsigned char* image_buffer,
int x,
int y,
int image_width,
int image_height
);
void SetFrameMemory(const unsigned char* image_buffer);
void ClearFrameMemory(unsigned char color);
void DisplayFrame(void);
void Sleep(void);
private:
unsigned int reset_pin;
unsigned int dc_pin;
unsigned int cs_pin;
unsigned int busy_pin;
const unsigned char* lut;
void SetLut(const unsigned char* lut);
void SetMemoryArea(int x_start, int y_start, int x_end, int y_end);
void SetMemoryPointer(int x, int y);
};
#endif /* EPD1IN54_H */
/* END OF FILE */

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examples/osd/arduino-epaper15/epdif.cpp Normal file
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@ -0,0 +1,64 @@
/**
* @filename : epdif.cpp
* @brief : Implements EPD interface functions
* Users have to implement all the functions in epdif.cpp
* @author : Yehui from Waveshare
*
* Copyright (C) Waveshare August 10 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 "epdif.h"
#include <SPI.h>
EpdIf::EpdIf() {
};
EpdIf::~EpdIf() {
};
void EpdIf::DigitalWrite(int pin, int value) {
digitalWrite(pin, value);
}
int EpdIf::DigitalRead(int pin) {
return digitalRead(pin);
}
void EpdIf::DelayMs(unsigned int delaytime) {
delay(delaytime);
}
void EpdIf::SpiTransfer(unsigned char data) {
digitalWrite(CS_PIN, LOW);
SPI.transfer(data);
digitalWrite(CS_PIN, HIGH);
}
int EpdIf::IfInit(void) {
pinMode(CS_PIN, OUTPUT);
pinMode(RST_PIN, OUTPUT);
pinMode(DC_PIN, OUTPUT);
pinMode(BUSY_PIN, INPUT);
SPI.beginTransaction(SPISettings(2000000, MSBFIRST, SPI_MODE0));
SPI.begin();
return 0;
}

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examples/osd/arduino-epaper15/epdif.h Normal file
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/**
* @filename : epdif.h
* @brief : Header file of epdif.cpp providing EPD interface functions
* Users have to implement all the functions in epdif.cpp
* @author : Yehui from Waveshare
*
* Copyright (C) Waveshare August 10 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.
*/
#ifndef EPDIF_H
#define EPDIF_H
#include <Arduino.h>
// Pin definition
#define RST_PIN 19
#define DC_PIN 20
#define CS_PIN 10
#define BUSY_PIN 13
class EpdIf {
public:
EpdIf(void);
~EpdIf(void);
static int IfInit(void);
static void DigitalWrite(int pin, int value);
static int DigitalRead(int pin);
static void DelayMs(unsigned int delaytime);
static void SpiTransfer(unsigned char data);
};
#endif

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examples/osd/arduino-epaper15/epdpaint.cpp Normal file
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@ -0,0 +1,342 @@
/**
* @filename : epdpaint.cpp
* @brief : Paint tools
* @author : Yehui from Waveshare
*
* Copyright (C) Waveshare September 9 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 <avr/pgmspace.h>
#include "epdpaint.h"
Paint::Paint(unsigned char* image, int width, int height) {
this->rotate = ROTATE_0;
this->image = image;
/* 1 byte = 8 pixels, so the width should be the multiple of 8 */
this->width = width % 8 ? width + 8 - (width % 8) : width;
this->height = height;
}
Paint::~Paint() {
}
/**
* @brief: clear the image
*/
void Paint::Clear(int colored) {
for (int x = 0; x < this->width; x++) {
for (int y = 0; y < this->height; y++) {
DrawAbsolutePixel(x, y, colored);
}
}
}
/**
* @brief: this draws a pixel by absolute coordinates.
* this function won't be affected by the rotate parameter.
*/
void Paint::DrawAbsolutePixel(int x, int y, int colored) {
if (x < 0 || x >= this->width || y < 0 || y >= this->height) {
return;
}
if (IF_INVERT_COLOR) {
if (colored) {
image[(x + y * this->width) / 8] |= 0x80 >> (x % 8);
} else {
image[(x + y * this->width) / 8] &= ~(0x80 >> (x % 8));
}
} else {
if (colored) {
image[(x + y * this->width) / 8] &= ~(0x80 >> (x % 8));
} else {
image[(x + y * this->width) / 8] |= 0x80 >> (x % 8);
}
}
}
/**
* @brief: Getters and Setters
*/
unsigned char* Paint::GetImage(void) {
return this->image;
}
int Paint::GetWidth(void) {
return this->width;
}
void Paint::SetWidth(int width) {
this->width = width % 8 ? width + 8 - (width % 8) : width;
}
int Paint::GetHeight(void) {
return this->height;
}
void Paint::SetHeight(int height) {
this->height = height;
}
int Paint::GetRotate(void) {
return this->rotate;
}
void Paint::SetRotate(int rotate){
this->rotate = rotate;
}
/**
* @brief: this draws a pixel by the coordinates
*/
void Paint::DrawPixel(int x, int y, int colored) {
int point_temp;
if (this->rotate == ROTATE_0) {
if(x < 0 || x >= this->width || y < 0 || y >= this->height) {
return;
}
DrawAbsolutePixel(x, y, colored);
} else if (this->rotate == ROTATE_90) {
if(x < 0 || x >= this->height || y < 0 || y >= this->width) {
return;
}
point_temp = x;
x = this->width - y;
y = point_temp;
DrawAbsolutePixel(x, y, colored);
} else if (this->rotate == ROTATE_180) {
if(x < 0 || x >= this->width || y < 0 || y >= this->height) {
return;
}
x = this->width - x;
y = this->height - y;
DrawAbsolutePixel(x, y, colored);
} else if (this->rotate == ROTATE_270) {
if(x < 0 || x >= this->height || y < 0 || y >= this->width) {
return;
}
point_temp = x;
x = y;
y = this->height - point_temp;
DrawAbsolutePixel(x, y, colored);
}
}
/**
* @brief: this draws a charactor on the frame buffer but not refresh
*/
void Paint::DrawCharAt(int x, int y, char ascii_char, sFONT* font, int colored) {
int i, j;
unsigned int char_offset = (ascii_char - ' ') * font->Height * (font->Width / 8 + (font->Width % 8 ? 1 : 0));
const unsigned char* ptr = &font->table[char_offset];
for (j = 0; j < font->Height; j++) {
for (i = 0; i < font->Width; i++) {
if (pgm_read_byte(ptr) & (0x80 >> (i % 8))) {
DrawPixel(x + i, y + j, colored);
}
if (i % 8 == 7) {
ptr++;
}
}
if (font->Width % 8 != 0) {
ptr++;
}
}
}
/**
* @brief: this displays a string on the frame buffer but not refresh
*/
void Paint::DrawStringAt(int x, int y, const char* text, sFONT* font, int colored) {
const char* p_text = text;
unsigned int counter = 0;
int refcolumn = x;
/* Send the string character by character on EPD */
while (*p_text != 0) {
/* Display one character on EPD */
DrawCharAt(refcolumn, y, *p_text, font, colored);
/* Decrement the column position by 16 */
refcolumn += font->Width;
/* Point on the next character */
p_text++;
counter++;
}
}
/**
* @brief: this draws a line on the frame buffer
*/
void Paint::DrawLine(int x0, int y0, int x1, int y1, int colored) {
/* Bresenham algorithm */
int dx = x1 - x0 >= 0 ? x1 - x0 : x0 - x1;
int sx = x0 < x1 ? 1 : -1;
int dy = y1 - y0 <= 0 ? y1 - y0 : y0 - y1;
int sy = y0 < y1 ? 1 : -1;
int err = dx + dy;
while((x0 != x1) && (y0 != y1)) {
DrawPixel(x0, y0 , colored);
if (2 * err >= dy) {
err += dy;
x0 += sx;
}
if (2 * err <= dx) {
err += dx;
y0 += sy;
}
}
}
/**
* @brief: this draws a horizontal line on the frame buffer
*/
void Paint::DrawHorizontalLine(int x, int y, int line_width, int colored) {
int i;
for (i = x; i < x + line_width; i++) {
DrawPixel(i, y, colored);
}
}
/**
* @brief: this draws a vertical line on the frame buffer
*/
void Paint::DrawVerticalLine(int x, int y, int line_height, int colored) {
int i;
for (i = y; i < y + line_height; i++) {
DrawPixel(x, i, colored);
}
}
/**
* @brief: this draws a rectangle
*/
void Paint::DrawRectangle(int x0, int y0, int x1, int y1, int colored) {
int min_x, min_y, max_x, max_y;
min_x = x1 > x0 ? x0 : x1;
max_x = x1 > x0 ? x1 : x0;
min_y = y1 > y0 ? y0 : y1;
max_y = y1 > y0 ? y1 : y0;
DrawHorizontalLine(min_x, min_y, max_x - min_x + 1, colored);
DrawHorizontalLine(min_x, max_y, max_x - min_x + 1, colored);
DrawVerticalLine(min_x, min_y, max_y - min_y + 1, colored);
DrawVerticalLine(max_x, min_y, max_y - min_y + 1, colored);
}
/**
* @brief: this draws a filled rectangle
*/
void Paint::DrawFilledRectangle(int x0, int y0, int x1, int y1, int colored) {
int min_x, min_y, max_x, max_y;
int i;
min_x = x1 > x0 ? x0 : x1;
max_x = x1 > x0 ? x1 : x0;
min_y = y1 > y0 ? y0 : y1;
max_y = y1 > y0 ? y1 : y0;
for (i = min_x; i <= max_x; i++) {
DrawVerticalLine(i, min_y, max_y - min_y + 1, colored);
}
}
/**
* @brief: this draws a circle
*/
void Paint::DrawCircle(int x, int y, int radius, int colored) {
/* Bresenham algorithm */
int x_pos = -radius;
int y_pos = 0;
int err = 2 - 2 * radius;
int e2;
do {
DrawPixel(x - x_pos, y + y_pos, colored);
DrawPixel(x + x_pos, y + y_pos, colored);
DrawPixel(x + x_pos, y - y_pos, colored);
DrawPixel(x - x_pos, y - y_pos, colored);
e2 = err;
if (e2 <= y_pos) {
err += ++y_pos * 2 + 1;
if(-x_pos == y_pos && e2 <= x_pos) {
e2 = 0;
}
}
if (e2 > x_pos) {
err += ++x_pos * 2 + 1;
}
} while (x_pos <= 0);
}
/**
* @brief: this draws a filled circle
*/
void Paint::DrawFilledCircle(int x, int y, int radius, int colored) {
/* Bresenham algorithm */
int x_pos = -radius;
int y_pos = 0;
int err = 2 - 2 * radius;
int e2;
do {
DrawPixel(x - x_pos, y + y_pos, colored);
DrawPixel(x + x_pos, y + y_pos, colored);
DrawPixel(x + x_pos, y - y_pos, colored);
DrawPixel(x - x_pos, y - y_pos, colored);
DrawHorizontalLine(x + x_pos, y + y_pos, 2 * (-x_pos) + 1, colored);
DrawHorizontalLine(x + x_pos, y - y_pos, 2 * (-x_pos) + 1, colored);
e2 = err;
if (e2 <= y_pos) {
err += ++y_pos * 2 + 1;
if(-x_pos == y_pos && e2 <= x_pos) {
e2 = 0;
}
}
if(e2 > x_pos) {
err += ++x_pos * 2 + 1;
}
} while(x_pos <= 0);
}
/* END OF FILE */

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/**
* @filename : epdpaint.h
* @brief : Header file for epdpaint.cpp
* @author : Yehui from Waveshare
*
* Copyright (C) Waveshare July 28 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.
*/
#ifndef EPDPAINT_H
#define EPDPAINT_H
// Display orientation
#define ROTATE_0 0
#define ROTATE_90 1
#define ROTATE_180 2
#define ROTATE_270 3
// Color inverse. 1 or 0 = set or reset a bit if set a colored pixel
#define IF_INVERT_COLOR 1
#include "fonts.h"
class Paint {
public:
Paint(unsigned char* image, int width, int height);
~Paint();
void Clear(int colored);
int GetWidth(void);
void SetWidth(int width);
int GetHeight(void);
void SetHeight(int height);
int GetRotate(void);
void SetRotate(int rotate);
unsigned char* GetImage(void);
void DrawAbsolutePixel(int x, int y, int colored);
void DrawPixel(int x, int y, int colored);
void DrawCharAt(int x, int y, char ascii_char, sFONT* font, int colored);
void DrawStringAt(int x, int y, const char* text, sFONT* font, int colored);
void DrawLine(int x0, int y0, int x1, int y1, int colored);
void DrawHorizontalLine(int x, int y, int width, int colored);
void DrawVerticalLine(int x, int y, int height, int colored);
void DrawRectangle(int x0, int y0, int x1, int y1, int colored);
void DrawFilledRectangle(int x0, int y0, int x1, int y1, int colored);
void DrawCircle(int x, int y, int radius, int colored);
void DrawFilledCircle(int x, int y, int radius, int colored);
private:
unsigned char* image;
int width;
int height;
int rotate;
};
#endif
/* END OF FILE */

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examples/osd/arduino-epaper15/font16.c Normal file
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/**
******************************************************************************
* @file fonts.h
* @author MCD Application Team
* @version V1.0.0
* @date 18-February-2014
* @brief Header for fonts.c file
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __FONTS_H
#define __FONTS_H
/* Max size of bitmap will based on a font24 (17x24) */
#define MAX_HEIGHT_FONT 24
#define MAX_WIDTH_FONT 17
#define OFFSET_BITMAP 54
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include <stdint.h>
typedef struct _tFont
{
const uint8_t *table;
int16_t Width;
int16_t Height;
} sFONT;
extern sFONT Font24;
extern sFONT Font20;
extern sFONT Font16;
extern sFONT Font12;
extern sFONT Font8;
#ifdef __cplusplus
}
#endif
#endif /* __FONTS_H */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

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/**
* @filename : imagedata.cpp
* @brief : data file for epd demo
*
* 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 "imagedata.h"
#include <avr/pgmspace.h>
const unsigned char IMAGE_DATA[] PROGMEM = {
/* 0X00,0X01,0XC8,0X00,0XC8,0X00, */
0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0X8F,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,
0XF1,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,
0XFF,0X8F,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XF1,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,
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0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0X8F,0XFF,0XFF,0XFF,
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0X8F,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XF1,0XE1,0XE3,0X00,0X00,0X00,0X00,0X01,
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0XFF,0XFE,0XFF,0XFF,0XE3,0XFF,0X1F,0XFF,0XFF,0XFF,0XFF,0X8F,0XFF,0XFF,0XFF,0XFF,
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0X8F,0XFF,0XFF,0XFF,0XF1,0XFE,0X87,0XFF,0XFF,0XFF,0XE0,0XCE,0XFF,0XFF,0XCE,0X7F,
0XFF,0XFF,0XFF,0XFF,0XFF,0X8F,0XFF,0XE0,0X1F,0X8F,0XC0,0X07,0XFF,0XF1,0XFE,0XFF,
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0XC6,0X7F,0XFF,0XFF,0XFF,0XFF,0XFF,0X8F,0XFF,0XE3,0XFF,0XEF,0X00,0X07,0XFF,0XF1,
0XFE,0XFF,0XFF,0XFF,0XFE,0X0C,0X02,0XFF,0XFF,0XE0,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,
0X8F,0XFF,0XFF,0XFF,0XFF,0X1F,0XFF,0XFF,0XF1,0XFE,0XFF,0XFF,0XFF,0XFE,0X18,0X02,
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0XFF,0XF1,0XFE,0XFF,0XFF,0XFF,0XFE,0X20,0X00,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,
0XFF,0XFF,0X8F,0XFF,0XFE,0X01,0XFF,0X1F,0XFF,0XFF,0XF1,0XFE,0XFF,0XFF,0XFF,0XFE,
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0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0X8F,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XF1,
0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,
};

30
examples/osd/arduino-epaper15/imagedata.h Normal file
View file

@ -0,0 +1,30 @@
/**
* @filename : imagedata.h
* @brief : head file for imagedata.cpp
*
* 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.
*/
extern const unsigned char IMAGE_DATA[];
/* FILE END */

4
examples/osd/arduino-epaper15/project-conf.h
View file

@ -51,8 +51,8 @@
/* The IP buffer size must fit all other hops, in particular the border router. */
#undef UIP_CONF_BUFFER_SIZE
#define UIP_CONF_BUFFER_SIZE 256
//#undef UIP_CONF_BUFFER_SIZE
//#define UIP_CONF_BUFFER_SIZE 256
/* Multiplies with chunk size, be aware of memory constraints. */

90
examples/osd/arduino-epaper15/sketch.pde
View file

@ -10,6 +10,10 @@ extern "C" {
#include "arduino-process.h"
#include "rest-engine.h"
#include "net/netstack.h"
#include <SPI.h>
#include <epd1in54.h>
#include <epdpaint.h>
#include "imagedata.h"
extern resource_t res_led, res_battery, res_cputemp;
@ -17,12 +21,26 @@ uint8_t led_pin=4;
uint8_t led_status;
}
#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];
Paint paint(image, 0, 0); // width should be the multiple of 8
Epd epd;
void setup (void)
{
// switch off the led
pinMode(led_pin, OUTPUT);
digitalWrite(led_pin, HIGH);
led_status=0;
// init coap resourcen
rest_init_engine ();
#pragma GCC diagnostic ignored "-Wwrite-strings"
@ -32,7 +50,77 @@ void setup (void)
#pragma GCC diagnostic pop
// NETSTACK_MAC.off(1);
mcu_sleep_set(128);
// mcu_sleep_set(128);
printf("e-Paper init");
// e-paper init
if (epd.Init(lut_full_update) != 0) {
printf(" 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(lut_partial_update) != 0) {
printf("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();
}
void loop (void)