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ddr
2026-06-28 23:56:37 +02:00
parent abea1653f8
commit 3311b19c86
496 changed files with 505623 additions and 1 deletions
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libraries/GxEPD2/examples/GxEPD2_WiFi_Example/GxEPD2_WiFi_Buffered.h
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void drawBitmapFrom_HTTP_ToBuffer(const char* host, const char* path, const char* filename, int16_t x, int16_t y, bool with_color)
{
WiFiClient client;
bool connection_ok = false;
bool valid = false; // valid format to be handled
bool flip = true; // bitmap is stored bottom-to-top
bool has_multicolors = (display.epd2.panel == GxEPD2::ACeP565) || (display.epd2.panel == GxEPD2::GDEY073D46)|| (display.epd2.panel == GxEPD2::GDEP073E01);
uint32_t startTime = millis();
if ((x >= display.width()) || (y >= display.height())) return;
display.fillScreen(GxEPD_WHITE);
Serial.print("connecting to "); Serial.println(host);
if (!client.connect(host, httpPort))
{
Serial.println("connection failed");
return;
}
Serial.print("requesting URL: ");
Serial.println(String("http://") + host + path + filename);
client.print(String("GET ") + path + filename + " HTTP/1.1\r\n" +
"Host: " + host + "\r\n" +
"User-Agent: GxEPD2_WiFi_Example\r\n" +
"Connection: close\r\n\r\n");
Serial.println("request sent");
while (client.connected())
{
String line = client.readStringUntil('\n');
if (!connection_ok)
{
connection_ok = line.startsWith("HTTP/1.1 200 OK");
if (connection_ok) Serial.println(line);
}
if (!connection_ok) Serial.println(line);
if (line == "\r")
{
Serial.println("headers received");
break;
}
}
if (!connection_ok) return;
// Parse BMP header
if (read16(client) == 0x4D42) // BMP signature
{
uint32_t fileSize = read32(client);
uint32_t creatorBytes = read32(client); (void)creatorBytes; //unused
uint32_t imageOffset = read32(client); // Start of image data
uint32_t headerSize = read32(client);
uint32_t width = read32(client);
int32_t height = (int32_t) read32(client);
uint16_t planes = read16(client);
uint16_t depth = read16(client); // bits per pixel
uint32_t format = read32(client);
uint32_t bytes_read = 7 * 4 + 3 * 2; // read so far
if ((planes == 1) && ((format == 0) || (format == 3))) // uncompressed is handled, 565 also
{
Serial.print("File size: "); Serial.println(fileSize);
Serial.print("Image Offset: "); Serial.println(imageOffset);
Serial.print("Header size: "); Serial.println(headerSize);
Serial.print("Bit Depth: "); Serial.println(depth);
Serial.print("Image size: ");
Serial.print(width);
Serial.print('x');
Serial.println(abs(height));
// BMP rows are padded (if needed) to 4-byte boundary
uint32_t rowSize = (width * depth / 8 + 3) & ~3;
if (depth < 8) rowSize = ((width * depth + 8 - depth) / 8 + 3) & ~3;
if (height < 0)
{
height = -height;
flip = false;
}
uint16_t w = width;
uint16_t h = height;
if ((x + w - 1) >= display.width()) w = display.width() - x;
if ((y + h - 1) >= display.height()) h = display.height() - y;
//if (w <= max_row_width) // handle with direct drawing
{
valid = true;
uint8_t bitmask = 0xFF;
uint8_t bitshift = 8 - depth;
uint16_t red, green, blue;
bool whitish = false;
bool colored = false;
if (depth == 1) with_color = false;
if (depth <= 8)
{
if (depth < 8) bitmask >>= depth;
bytes_read += skip(client, imageOffset - (4 << depth) - bytes_read); // 54 for regular, diff for colorsimportant
for (uint16_t pn = 0; pn < (1 << depth); pn++)
{
blue = client.read();
green = client.read();
red = client.read();
client.read();
bytes_read += 4;
whitish = with_color ? ((red > 0x80) && (green > 0x80) && (blue > 0x80)) : ((red + green + blue) > 3 * 0x80); // whitish
colored = (red > 0xF0) || ((green > 0xF0) && (blue > 0xF0)); // reddish or yellowish?
if (0 == pn % 8) mono_palette_buffer[pn / 8] = 0;
mono_palette_buffer[pn / 8] |= whitish << pn % 8;
if (0 == pn % 8) color_palette_buffer[pn / 8] = 0;
color_palette_buffer[pn / 8] |= colored << pn % 8;
//Serial.print("0x00"); Serial.print(red, HEX); Serial.print(green, HEX); Serial.print(blue, HEX);
//Serial.print(" : "); Serial.print(whitish); Serial.print(", "); Serial.println(colored);
rgb_palette_buffer[pn] = ((red & 0xF8) << 8) | ((green & 0xFC) << 3) | ((blue & 0xF8) >> 3);
}
}
uint32_t rowPosition = flip ? imageOffset + (height - h) * rowSize : imageOffset;
bytes_read += skip(client, rowPosition - bytes_read);
for (uint16_t row = 0; row < h; row++, rowPosition += rowSize) // for each line
{
if (!connection_ok || !(client.connected() || client.available())) break;
delay(1); // yield() to avoid WDT
uint32_t in_remain = rowSize;
uint32_t in_idx = 0;
uint32_t in_bytes = 0;
uint8_t in_byte = 0; // for depth <= 8
uint8_t in_bits = 0; // for depth <= 8
uint16_t color = GxEPD_WHITE;
for (uint16_t col = 0; col < w; col++) // for each pixel
{
yield();
if (!connection_ok || !(client.connected() || client.available())) break;
// Time to read more pixel data?
if (in_idx >= in_bytes) // ok, exact match for 24bit also (size IS multiple of 3)
{
uint32_t get = in_remain > sizeof(input_buffer) ? sizeof(input_buffer) : in_remain;
uint32_t got = read8n(client, input_buffer, get);
while ((got < get) && connection_ok)
{
//Serial.print("got "); Serial.print(got); Serial.print(" < "); Serial.print(get); Serial.print(" @ "); Serial.println(bytes_read);
uint32_t gotmore = read8n(client, input_buffer + got, get - got);
got += gotmore;
connection_ok = gotmore > 0;
}
in_bytes = got;
in_remain -= got;
bytes_read += got;
in_idx = 0;
}
if (!connection_ok)
{
Serial.print("Error: got no more after "); Serial.print(bytes_read); Serial.println(" bytes read!");
break;
}
switch (depth)
{
case 32:
blue = input_buffer[in_idx++];
green = input_buffer[in_idx++];
red = input_buffer[in_idx++];
in_idx++; // skip alpha
whitish = with_color ? ((red > 0x80) && (green > 0x80) && (blue > 0x80)) : ((red + green + blue) > 3 * 0x80); // whitish
colored = (red > 0xF0) || ((green > 0xF0) && (blue > 0xF0)); // reddish or yellowish?
color = ((red & 0xF8) << 8) | ((green & 0xFC) << 3) | ((blue & 0xF8) >> 3);
break;
case 24:
blue = input_buffer[in_idx++];
green = input_buffer[in_idx++];
red = input_buffer[in_idx++];
whitish = with_color ? ((red > 0x80) && (green > 0x80) && (blue > 0x80)) : ((red + green + blue) > 3 * 0x80); // whitish
colored = (red > 0xF0) || ((green > 0xF0) && (blue > 0xF0)); // reddish or yellowish?
color = ((red & 0xF8) << 8) | ((green & 0xFC) << 3) | ((blue & 0xF8) >> 3);
break;
case 16:
{
uint8_t lsb = input_buffer[in_idx++];
uint8_t msb = input_buffer[in_idx++];
if (format == 0) // 555
{
blue = (lsb & 0x1F) << 3;
green = ((msb & 0x03) << 6) | ((lsb & 0xE0) >> 2);
red = (msb & 0x7C) << 1;
color = ((red & 0xF8) << 8) | ((green & 0xFC) << 3) | ((blue & 0xF8) >> 3);
}
else // 565
{
blue = (lsb & 0x1F) << 3;
green = ((msb & 0x07) << 5) | ((lsb & 0xE0) >> 3);
red = (msb & 0xF8);
color = (msb << 8) | lsb;
}
whitish = with_color ? ((red > 0x80) && (green > 0x80) && (blue > 0x80)) : ((red + green + blue) > 3 * 0x80); // whitish
colored = (red > 0xF0) || ((green > 0xF0) && (blue > 0xF0)); // reddish or yellowish?
}
break;
case 1:
case 2:
case 4:
case 8:
{
if (0 == in_bits)
{
in_byte = input_buffer[in_idx++];
in_bits = 8;
}
uint16_t pn = (in_byte >> bitshift) & bitmask;
whitish = mono_palette_buffer[pn / 8] & (0x1 << pn % 8);
colored = color_palette_buffer[pn / 8] & (0x1 << pn % 8);
in_byte <<= depth;
in_bits -= depth;
color = rgb_palette_buffer[pn];
}
break;
}
if (with_color && has_multicolors)
{
// keep color
}
else if (whitish)
{
color = GxEPD_WHITE;
}
else if (colored && with_color)
{
color = GxEPD_COLORED;
}
else
{
color = GxEPD_BLACK;
}
uint16_t yrow = y + (flip ? h - row - 1 : row);
display.drawPixel(x + col, yrow, color);
} // end pixel
} // end line
}
Serial.print("bytes read "); Serial.println(bytes_read);
}
}
Serial.print("loaded in "); Serial.print(millis() - startTime); Serial.println(" ms");
client.stop();
if (!valid)
{
Serial.println("bitmap format not handled.");
}
}
void showBitmapFrom_HTTP_Buffered(const char* host, const char* path, const char* filename, int16_t x, int16_t y, bool with_color)
{
Serial.println(); Serial.print("downloading file \""); Serial.print(filename); Serial.println("\"");
display.setFullWindow();
display.firstPage();
do
{
drawBitmapFrom_HTTP_ToBuffer(host, path, filename, x, y, with_color);
}
while (display.nextPage());
}
void drawBitmapFrom_HTTPS_ToBuffer(const char* host, const char* path, const char* filename, const char* fingerprint, int16_t x, int16_t y, bool with_color, const char* certificate)
{
// Use WiFiClientSecure class to create TLS connection
#if defined (ESP8266)
BearSSL::WiFiClientSecure client;
BearSSL::X509List cert(certificate ? certificate : certificate_rawcontent);
#else
WiFiClientSecure client;
#endif
bool connection_ok = false;
bool valid = false; // valid format to be handled
bool flip = true; // bitmap is stored bottom-to-top
bool has_multicolors = (display.epd2.panel == GxEPD2::ACeP565) || (display.epd2.panel == GxEPD2::GDEY073D46)|| (display.epd2.panel == GxEPD2::GDEP073E01);
uint32_t startTime = millis();
if ((x >= display.width()) || (y >= display.height())) return;
display.fillScreen(GxEPD_WHITE);
Serial.print("connecting to "); Serial.println(host);
#if defined (ESP8266)
if (certificate) client.setTrustAnchors(&cert);
else if (fingerprint) client.setFingerprint(fingerprint);
else client.setInsecure();
#elif defined (ESP32)
if (certificate) client.setCACert(certificate);
#endif
if (!client.connect(host, httpsPort))
{
Serial.println("connection failed");
return;
}
Serial.print("requesting URL: ");
Serial.println(String("https://") + host + path + filename);
client.print(String("GET ") + path + filename + " HTTP/1.1\r\n" +
"Host: " + host + "\r\n" +
"User-Agent: GxEPD2_WiFi_Example\r\n" +
"Connection: close\r\n\r\n");
Serial.println("request sent");
while (client.connected())
{
String line = client.readStringUntil('\n');
if (!connection_ok)
{
connection_ok = line.startsWith("HTTP/1.1 200 OK");
if (connection_ok) Serial.println(line);
}
if (!connection_ok) Serial.println(line);
if (line == "\r")
{
Serial.println("headers received");
break;
}
}
if (!connection_ok) return;
// Parse BMP header
uint16_t signature = 0;
for (int16_t i = 0; i < 50; i++)
{
if (!client.available()) delay(100);
else signature = read16(client);
if (signature == 0x4D42) break;
}
if (signature == 0x4D42) // BMP signature
{
uint32_t fileSize = read32(client);
uint32_t creatorBytes = read32(client); (void)creatorBytes; //unused
uint32_t imageOffset = read32(client); // Start of image data
uint32_t headerSize = read32(client);
uint32_t width = read32(client);
int32_t height = (int32_t) read32(client);
uint16_t planes = read16(client);
uint16_t depth = read16(client); // bits per pixel
uint32_t format = read32(client);
uint32_t bytes_read = 7 * 4 + 3 * 2; // read so far
if ((planes == 1) && ((format == 0) || (format == 3))) // uncompressed is handled, 565 also
{
Serial.print("File size: "); Serial.println(fileSize);
Serial.print("Image Offset: "); Serial.println(imageOffset);
Serial.print("Header size: "); Serial.println(headerSize);
Serial.print("Bit Depth: "); Serial.println(depth);
Serial.print("Image size: ");
Serial.print(width);
Serial.print('x');
Serial.println(abs(height));
// BMP rows are padded (if needed) to 4-byte boundary
uint32_t rowSize = (width * depth / 8 + 3) & ~3;
if (depth < 8) rowSize = ((width * depth + 8 - depth) / 8 + 3) & ~3;
if (height < 0)
{
height = -height;
flip = false;
}
uint16_t w = width;
uint16_t h = height;
if ((x + w - 1) >= display.width()) w = display.width() - x;
if ((y + h - 1) >= display.height()) h = display.height() - y;
//if (w <= max_row_width) // handle with direct drawing
{
valid = true;
uint8_t bitmask = 0xFF;
uint8_t bitshift = 8 - depth;
uint16_t red, green, blue;
bool whitish = false;
bool colored = false;
if (depth == 1) with_color = false;
if (depth <= 8)
{
if (depth < 8) bitmask >>= depth;
//bytes_read += skip(client, 54 - bytes_read); //palette is always @ 54
bytes_read += skip(client, imageOffset - (4 << depth) - bytes_read); // 54 for regular, diff for colorsimportant
for (uint16_t pn = 0; pn < (1 << depth); pn++)
{
blue = client.read();
green = client.read();
red = client.read();
client.read();
bytes_read += 4;
whitish = with_color ? ((red > 0x80) && (green > 0x80) && (blue > 0x80)) : ((red + green + blue) > 3 * 0x80); // whitish
colored = (red > 0xF0) || ((green > 0xF0) && (blue > 0xF0)); // reddish or yellowish?
if (0 == pn % 8) mono_palette_buffer[pn / 8] = 0;
mono_palette_buffer[pn / 8] |= whitish << pn % 8;
if (0 == pn % 8) color_palette_buffer[pn / 8] = 0;
color_palette_buffer[pn / 8] |= colored << pn % 8;
//Serial.print("0x00"); Serial.print(red, HEX); Serial.print(green, HEX); Serial.print(blue, HEX);
//Serial.print(" : "); Serial.print(whitish); Serial.print(", "); Serial.println(colored);
rgb_palette_buffer[pn] = ((red & 0xF8) << 8) | ((green & 0xFC) << 3) | ((blue & 0xF8) >> 3);
}
}
uint32_t rowPosition = flip ? imageOffset + (height - h) * rowSize : imageOffset;
//Serial.print("skip "); Serial.println(rowPosition - bytes_read);
bytes_read += skip(client, rowPosition - bytes_read);
for (uint16_t row = 0; row < h; row++, rowPosition += rowSize) // for each line
{
if (!connection_ok || !(client.connected() || client.available())) break;
delay(1); // yield() to avoid WDT
uint32_t in_remain = rowSize;
uint32_t in_idx = 0;
uint32_t in_bytes = 0;
uint8_t in_byte = 0; // for depth <= 8
uint8_t in_bits = 0; // for depth <= 8
uint16_t color = GxEPD_WHITE;
for (uint16_t col = 0; col < w; col++) // for each pixel
{
yield();
if (!connection_ok || !(client.connected() || client.available())) break;
// Time to read more pixel data?
if (in_idx >= in_bytes) // ok, exact match for 24bit also (size IS multiple of 3)
{
uint32_t get = in_remain > sizeof(input_buffer) ? sizeof(input_buffer) : in_remain;
uint32_t got = read8n(client, input_buffer, get);
while ((got < get) && connection_ok)
{
//Serial.print("got "); Serial.print(got); Serial.print(" < "); Serial.print(get); Serial.print(" @ "); Serial.println(bytes_read);
uint32_t gotmore = read8n(client, input_buffer + got, get - got);
got += gotmore;
connection_ok = gotmore > 0;
}
in_bytes = got;
in_remain -= got;
bytes_read += got;
in_idx = 0;
}
if (!connection_ok)
{
Serial.print("Error: got no more after "); Serial.print(bytes_read); Serial.println(" bytes read!");
break;
}
switch (depth)
{
case 32:
blue = input_buffer[in_idx++];
green = input_buffer[in_idx++];
red = input_buffer[in_idx++];
in_idx++; // skip alpha
whitish = with_color ? ((red > 0x80) && (green > 0x80) && (blue > 0x80)) : ((red + green + blue) > 3 * 0x80); // whitish
colored = (red > 0xF0) || ((green > 0xF0) && (blue > 0xF0)); // reddish or yellowish?
color = ((red & 0xF8) << 8) | ((green & 0xFC) << 3) | ((blue & 0xF8) >> 3);
break;
case 24:
blue = input_buffer[in_idx++];
green = input_buffer[in_idx++];
red = input_buffer[in_idx++];
whitish = with_color ? ((red > 0x80) && (green > 0x80) && (blue > 0x80)) : ((red + green + blue) > 3 * 0x80); // whitish
colored = (red > 0xF0) || ((green > 0xF0) && (blue > 0xF0)); // reddish or yellowish?
color = ((red & 0xF8) << 8) | ((green & 0xFC) << 3) | ((blue & 0xF8) >> 3);
break;
case 16:
{
uint8_t lsb = input_buffer[in_idx++];
uint8_t msb = input_buffer[in_idx++];
if (format == 0) // 555
{
blue = (lsb & 0x1F) << 3;
green = ((msb & 0x03) << 6) | ((lsb & 0xE0) >> 2);
red = (msb & 0x7C) << 1;
color = ((red & 0xF8) << 8) | ((green & 0xFC) << 3) | ((blue & 0xF8) >> 3);
}
else // 565
{
blue = (lsb & 0x1F) << 3;
green = ((msb & 0x07) << 5) | ((lsb & 0xE0) >> 3);
red = (msb & 0xF8);
color = (msb << 8) | lsb;
}
whitish = with_color ? ((red > 0x80) && (green > 0x80) && (blue > 0x80)) : ((red + green + blue) > 3 * 0x80); // whitish
colored = (red > 0xF0) || ((green > 0xF0) && (blue > 0xF0)); // reddish or yellowish?
}
break;
case 1:
case 2:
case 4:
case 8:
{
if (0 == in_bits)
{
in_byte = input_buffer[in_idx++];
in_bits = 8;
}
uint16_t pn = (in_byte >> bitshift) & bitmask;
whitish = mono_palette_buffer[pn / 8] & (0x1 << pn % 8);
colored = color_palette_buffer[pn / 8] & (0x1 << pn % 8);
in_byte <<= depth;
in_bits -= depth;
color = rgb_palette_buffer[pn];
}
break;
}
if (with_color && has_multicolors)
{
// keep color
}
else if (whitish)
{
color = GxEPD_WHITE;
}
else if (colored && with_color)
{
color = GxEPD_COLORED;
}
else
{
color = GxEPD_BLACK;
}
uint16_t yrow = y + (flip ? h - row - 1 : row);
display.drawPixel(x + col, yrow, color);
} // end pixel
} // end line
}
Serial.print("bytes read "); Serial.println(bytes_read);
}
}
Serial.print("loaded in "); Serial.print(millis() - startTime); Serial.println(" ms");
client.stop();
if (!valid)
{
Serial.println("bitmap format not handled.");
}
}
void showBitmapFrom_HTTPS_Buffered(const char* host, const char* path, const char* filename, const char* fingerprint, int16_t x, int16_t y, bool with_color, const char* certificate)
{
Serial.println(); Serial.print("downloading file \""); Serial.print(filename); Serial.println("\"");
display.setFullWindow();
display.firstPage();
do
{
drawBitmapFrom_HTTPS_ToBuffer(host, path, filename, fingerprint, x, y, with_color, certificate);
}
while (display.nextPage());
}
libraries/GxEPD2/examples/GxEPD2_WiFi_Example/GxEPD2_WiFi_DisplaySelection.h
+216
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// NOTE: you may need to adapt or select for your wiring in the processor specific conditional compile sections below
// select the display class (only one), matching the kind of display panel
#define GxEPD2_DISPLAY_CLASS GxEPD2_BW
//#define GxEPD2_DISPLAY_CLASS GxEPD2_3C
//#define GxEPD2_DISPLAY_CLASS GxEPD2_4C
//#define GxEPD2_DISPLAY_CLASS GxEPD2_7C
// select the display driver class (only one) for your panel
//#define GxEPD2_DRIVER_CLASS GxEPD2_102 // GDEW0102T4 80x128, UC8175, (WFT0102CZA2)
//#define GxEPD2_DRIVER_CLASS GxEPD2_150_BN // DEPG0150BN 200x200, SSD1681, (FPC8101), TTGO T5 V2.4.1
//#define GxEPD2_DRIVER_CLASS GxEPD2_154 // GDEP015OC1 200x200, IL3829, (WFC0000CZ07), no longer available
//#define GxEPD2_DRIVER_CLASS GxEPD2_154_D67 // GDEH0154D67 200x200, SSD1681, (HINK-E154A07-A1)
//#define GxEPD2_DRIVER_CLASS GxEPD2_154_T8 // GDEW0154T8 152x152, UC8151 (IL0373), (WFT0154CZ17)
//#define GxEPD2_DRIVER_CLASS GxEPD2_154_M09 // GDEW0154M09 200x200, JD79653A, (WFT0154CZB3)
//#define GxEPD2_DRIVER_CLASS GxEPD2_154_M10 // GDEW0154M10 152x152, UC8151D, (WFT0154CZ17)
//#define GxEPD2_DRIVER_CLASS GxEPD2_154_GDEY0154D67 // GDEY0154D67 200x200, SSD1681, (FPC-B001 20.05.21)
//#define GxEPD2_DRIVER_CLASS GxEPD2_213 // GDE0213B1 122x250, IL3895, (HINK-E0213-G01), phased out
//#define GxEPD2_DRIVER_CLASS GxEPD2_213_B72 // GDEH0213B72 122x250, SSD1675A (IL3897), (HINK-E0213A22-A0 SLH1852)
//#define GxEPD2_DRIVER_CLASS GxEPD2_213_B73 // GDEH0213B73 122x250, SSD1675B, (HINK-E0213A22-A0 SLH1914)
//#define GxEPD2_DRIVER_CLASS GxEPD2_213_B74 // GDEM0213B74 122x250, SSD1680, FPC-7528B)
//#define GxEPD2_DRIVER_CLASS GxEPD2_213_flex // GDEW0213I5F 104x212, UC8151 (IL0373), (WFT0213CZ16)
//#define GxEPD2_DRIVER_CLASS GxEPD2_213_M21 // GDEW0213M21 104x212, UC8151 (IL0373), (WFT0213CZ16)
//#define GxEPD2_DRIVER_CLASS GxEPD2_213_T5D // GDEW0213T5D 104x212, UC8151D, (WFT0213CZ16)
//#define GxEPD2_DRIVER_CLASS GxEPD2_213_BN // DEPG0213BN 122x250, SSD1680, (FPC-7528B), TTGO T5 V2.4.1, V2.3.1
//#define GxEPD2_DRIVER_CLASS GxEPD2_213_GDEY0213B74 // GDEY0213B74 122x250, SSD1680, (FPC-A002 20.04.08)
//#define GxEPD2_DRIVER_CLASS GxEPD2_260 // GDEW026T0 152x296, UC8151 (IL0373), (WFT0154CZ17)
//#define GxEPD2_DRIVER_CLASS GxEPD2_260_M01 // GDEW026M01 152x296, UC8151 (IL0373), (WFT0260CZB2)
//#define GxEPD2_DRIVER_CLASS GxEPD2_266_BN // DEPG0266BN 152x296, SSD1680, (FPC7510), TTGO T5 V2.66, TTGO T5 V2.4.1
//#define GxEPD2_DRIVER_CLASS GxEPD2_266_GDEY0266T90 // GDEY0266T90 152x296, SSD1680, (FPC-A003 HB)
//#define GxEPD2_DRIVER_CLASS GxEPD2_270 // GDEW027W3 176x264, EK79652 (IL91874), (WFI0190CZ22)
//#define GxEPD2_DRIVER_CLASS GxEPD2_270_GDEY027T91 // GDEY027T91 176x264, SSD1680, (FB)
//#define GxEPD2_DRIVER_CLASS GxEPD2_290 // GDEH029A1 128x296, SSD1608 (IL3820), (E029A01-FPC-A1 SYX1553)
//#define GxEPD2_DRIVER_CLASS GxEPD2_290_T5 // GDEW029T5 128x296, UC8151 (IL0373), (WFT0290CZ10)
//#define GxEPD2_DRIVER_CLASS GxEPD2_290_T5D // GDEW029T5D 128x296, UC8151D, (WFT0290CZ10)
//#define GxEPD2_DRIVER_CLASS GxEPD2_290_I6FD // GDEW029I6FD 128x296, UC8151D, (WFT0290CZ10)
//#define GxEPD2_DRIVER_CLASS GxEPD2_290_T94 // GDEM029T94 128x296, SSD1680, (FPC-7519 rev.b)
//#define GxEPD2_DRIVER_CLASS GxEPD2_290_T94_V2 // GDEM029T94 128x296, SSD1680, (FPC-7519 rev.b), Waveshare 2.9" V2 variant
//#define GxEPD2_DRIVER_CLASS GxEPD2_290_BS // DEPG0290BS 128x296, SSD1680, (FPC-7519 rev.b)
//#define GxEPD2_DRIVER_CLASS GxEPD2_290_M06 // GDEW029M06 128x296, UC8151D, (WFT0290CZ10)
//#define GxEPD2_DRIVER_CLASS GxEPD2_290_GDEY029T94 // GDEY029T94 128x296, SSD1680, (FPC-A005 20.06.15)
//#define GxEPD2_DRIVER_CLASS GxEPD2_290_GDEY029T71H // GDEY029T71H 168x384, SSD1685, (FPC-H004 22.03.24)
//#define GxEPD2_DRIVER_CLASS GxEPD2_310_GDEQ031T10 // GDEQ031T10 240x320, UC8253, (no inking, backside mark KEGMO 3100)
//#define GxEPD2_DRIVER_CLASS GxEPD2_371 // GDEW0371W7 240x416, UC8171 (IL0324), (missing)
//#define GxEPD2_DRIVER_CLASS GxEPD2_370_TC1 // ED037TC1 280x480, SSD1677, (ICA-FU-20 ichia 2029), Waveshare 3.7"
//#define GxEPD2_DRIVER_CLASS GxEPD2_420 // GDEW042T2 400x300, UC8176 (IL0398), (WFT042CZ15)
//#define GxEPD2_DRIVER_CLASS GxEPD2_420_M01 // GDEW042M01 400x300, UC8176 (IL0398), (WFT042CZ15)
//#define GxEPD2_DRIVER_CLASS GxEPD2_420_GDEY042T81 // GDEY042T81 400x300, SSD1683 (no inking)
//#define GxEPD2_DRIVER_CLASS GxEPD2_420_GYE042A87 // GYE042A87, 400x300, SSD1683 (HINK-E042-A07-FPC-A1)
//#define GxEPD2_DRIVER_CLASS GxEPD2_420_SE0420NQ04 // SE0420NQ04, 400x300, UC8276C (OPM042A2_V1.0)
//#define GxEPD2_DRIVER_CLASS GxEPD2_426_GDEQ0426T82 // GDEQ0426T82 480x800, SSD1677 (P426010-MF1-A)
//#define GxEPD2_DRIVER_CLASS GxEPD2_579_GDEY0579T93 // GDEY0579T93 792x272, SSD1683 (FPC-E004 22.04.13)
//#define GxEPD2_DRIVER_CLASS GxEPD2_583 // GDEW0583T7 600x448, UC8159c (IL0371), (missing)
//#define GxEPD2_DRIVER_CLASS GxEPD2_583_T8 // GDEW0583T8 648x480, EK79655 (GD7965), (WFT0583CZ61)
//#define GxEPD2_DRIVER_CLASS GxEPD2_583_GDEQ0583T31 // GDEQ0583T31 648x480, UC8179, (P583010-MF1-B)
//#define GxEPD2_DRIVER_CLASS GxEPD2_750 // GDEW075T8 640x384, UC8159c (IL0371), (WF0583CZ09)
//#define GxEPD2_DRIVER_CLASS GxEPD2_750_T7 // GDEW075T7 800x480, EK79655 (GD7965), (WFT0583CZ61)
//#define GxEPD2_DRIVER_CLASS GxEPD2_750_GDEY075T7 // GDEY075T7 800x480, UC8179 (GD7965), (FPC-C001 20.08.20)
//#define GxEPD2_DRIVER_CLASS GxEPD2_1020_GDEM102T91 // GDEM102T91 960x640, SSD1677, (FPC7705 REV.b)
//#define GxEPD2_DRIVER_CLASS GxEPD2_1085_GDEM1085T51 // GDEM1085T51 1360x480, JD79686AB, (FPC8617) *** needs CS2 ***
//#define GxEPD2_DRIVER_CLASS GxEPD2_1160_T91 // GDEH116T91 960x640, SSD1677, (none or hidden)
//#define GxEPD2_DRIVER_CLASS GxEPD2_1248 // GDEW1248T3 1304x984, UC8179, (WFT1248BZ23,WFT1248BZ24)
//#define GxEPD2_DRIVER_CLASS GxEPD2_1330_GDEM133T91 // GDEM133T91 960x680, SSD1677, (FPC-7701 REV.B)
// 3-color e-papers
//#define GxEPD2_DRIVER_CLASS GxEPD2_154c // GDEW0154Z04 200x200, IL0376F, (WFT0000CZ04), no longer available
//#define GxEPD2_DRIVER_CLASS GxEPD2_154_Z90c // GDEH0154Z90 200x200, SSD1681, (HINK-E154A07-A1)
//#define GxEPD2_DRIVER_CLASS GxEPD2_213c // GDEW0213Z16 104x212, UC8151 (IL0373), (WFT0213CZ16)
//#define GxEPD2_DRIVER_CLASS GxEPD2_213_Z19c // GDEH0213Z19 104x212, UC8151D, (HINK-E0213A20-A2 2020-11-19)
//#define GxEPD2_DRIVER_CLASS GxEPD2_213_Z98c // GDEY0213Z98 122x250, SSD1680, (FPC-A002 20.04.08)
//#define GxEPD2_DRIVER_CLASS GxEPD2_266c // GDEY0266Z90 152x296, SSD1680, (FPC-7510)
//#define GxEPD2_DRIVER_CLASS GxEPD2_270c // GDEW027C44 176x264, IL91874, (WFI0190CZ22)
//#define GxEPD2_DRIVER_CLASS GxEPD2_290c // GDEW029Z10 128x296, UC8151 (IL0373), (WFT0290CZ10)
//#define GxEPD2_DRIVER_CLASS GxEPD2_290_Z13c // GDEH029Z13 128x296, UC8151D, (HINK-E029A10-A3 20160809)
//#define GxEPD2_DRIVER_CLASS GxEPD2_290_C90c // GDEM029C90 128x296, SSD1680, (FPC-7519 rev.b)
//#define GxEPD2_DRIVER_CLASS GxEPD2_420c // GDEW042Z15 400x300, UC8176 (IL0398), (WFT0420CZ15)
//#define GxEPD2_DRIVER_CLASS GxEPD2_420c_Z21 // GDEQ042Z21 400x300, UC8276, (hidden)
//#define GxEPD2_DRIVER_CLASS GxEPD2_420c_GDEY042Z98 // GDEY042Z98 400x300, SSD1683 (no inking)
//#define GxEPD2_DRIVER_CLASS GxEPD2_579c_GDEY0579Z93 // GDEY0579Z93 792x272, SSD1683 (FPC-E004 22.04.13)
//#define GxEPD2_DRIVER_CLASS GxEPD2_583c // GDEW0583Z21 600x448, UC8159c (IL0371), (missing)
//#define GxEPD2_DRIVER_CLASS GxEPD2_583c_Z83 // GDEW0583Z83 648x480, EK79655 (GD7965), (WFT0583CZ61)
//#define GxEPD2_DRIVER_CLASS GxEPD2_583c_GDEQ0583Z31 // GDEQ0583Z31 648x480, UC8179C,
//#define GxEPD2_DRIVER_CLASS GxEPD2_750c // GDEW075Z09 640x384, UC8159c (IL0371), (WF0583CZ09)
//#define GxEPD2_DRIVER_CLASS GxEPD2_750c_Z08 // GDEW075Z08 800x480, EK79655 (GD7965), (WFT0583CZ61)
//#define GxEPD2_DRIVER_CLASS GxEPD2_750c_Z90 // GDEH075Z90 880x528, SSD1677, (HINK-E075A07-A0)
//#define GxEPD2_DRIVER_CLASS GxEPD2_1160c_GDEY116Z91 // GDEY116Z91 960x640, SSD1677, (FPV-K002 22.04.15)
//#define GxEPD2_DRIVER_CLASS GxEPD2_1248c // GDEY1248Z51 1304x984, UC8179, (WFT1248BZ23,WFT1248BZ24)
//#define GxEPD2_DRIVER_CLASS GxEPD2_1330c_GDEM133Z91 // GDEM133Z91 960x680, SSD1677 (FPC-7701 REV.B)
// 4-color e-paper
//#define GxEPD2_DRIVER_CLASS GxEPD2_213c_GDEY0213F51 // GDEY0213F51 122x250, JD79661 (FPC-A002 20.04.08)
//#define GxEPD2_DRIVER_CLASS GxEPD2_266c_GDEY0266F51H // GDEY0266F51H 184x360, JD79667 (FPC-H006 22.04.02)
//#define GxEPD2_DRIVER_CLASS GxEPD2_290c_GDEY029F51H // GDEY029F51H 168x384, JD79667 (FPC-H004 22.03.24)
//#define GxEPD2_DRIVER_CLASS GxEPD2_300c // Waveshare 3.00" 4-color
//#define GxEPD2_DRIVER_CLASS GxEPD2_420c_GDEY0420F51 // GDEY0420F51 400x300, HX8717 (no inking)
//#define GxEPD2_DRIVER_CLASS GxEPD2_437c // Waveshare 4.37" 4-color
//#define GxEPD2_DRIVER_CLASS GxEPD2_0579c_GDEY0579F51 // GDEY0579F51 792x272, HX8717 (FPC-E009 22.09.25)
//#define GxEPD2_DRIVER_CLASS GxEPD2_1160c_GDEY116F51 // GDEY116F51 960x640, SSD2677, (FPC-K012 23.09.27)
// 7-color e-paper
//#define GxEPD2_DRIVER_CLASS GxEPD2_565c // Waveshare 5.65" 7-color
//#define GxEPD2_DRIVER_CLASS GxEPD2_565c_GDEP0565D90 // GDEP0565D90 600x448 7-color (E219454, AB1024-EGA AC0750TC1)
//#define GxEPD2_DRIVER_CLASS GxEPD2_730c_GDEY073D46 // GDEY073D46 800x480 7-color, (N-FPC-001 2021.11.26)
//#define GxEPD2_DRIVER_CLASS GxEPD2_730c_ACeP_730 // Waveshare 7.3" 7-color
//#define GxEPD2_DRIVER_CLASS GxEPD2_730c_GDEP073E01 // GDEP073E01 800x480 7-color, (E350911HF 94V-0 F-6 ROHS 24141)
// grey levels parallel IF e-papers on Waveshare e-Paper IT8951 Driver HAT
//#define GxEPD2_DRIVER_CLASS GxEPD2_it60 // ED060SCT 800x600
//#define GxEPD2_DRIVER_CLASS GxEPD2_it60_1448x1072 // ED060KC1 1448x1072
//#define GxEPD2_DRIVER_CLASS GxEPD2_it78_1872x1404 // ED078KC2 1872x1404
//#define GxEPD2_DRIVER_CLASS GxEPD2_it103_1872x1404 // ES103TC1 1872x1404
// SS is usually used for CS. define here for easy change
#ifndef EPD_CS
#define EPD_CS SS
#endif
// somehow there should be an easier way to do this
#define GxEPD2_BW_IS_GxEPD2_BW true
#define GxEPD2_3C_IS_GxEPD2_3C true
#define GxEPD2_4C_IS_GxEPD2_4C true
#define GxEPD2_7C_IS_GxEPD2_7C true
#define GxEPD2_1248_IS_GxEPD2_1248 true
#define GxEPD2_1248c_IS_GxEPD2_1248c true
#define IS_GxEPD(c, x) (c##x)
#define IS_GxEPD2_BW(x) IS_GxEPD(GxEPD2_BW_IS_, x)
#define IS_GxEPD2_3C(x) IS_GxEPD(GxEPD2_3C_IS_, x)
#define IS_GxEPD2_4C(x) IS_GxEPD(GxEPD2_4C_IS_, x)
#define IS_GxEPD2_7C(x) IS_GxEPD(GxEPD2_7C_IS_, x)
#define IS_GxEPD2_1248(x) IS_GxEPD(GxEPD2_1248_IS_, x)
#define IS_GxEPD2_1248c(x) IS_GxEPD(GxEPD2_1248c_IS_, x)
#if defined (ESP8266)
#define MAX_DISPLAY_BUFFER_SIZE (81920ul-34000ul-36000ul) // ~34000 base use, WiFiClientSecure seems to need about 36k more to work (with certificates)
#if IS_GxEPD2_BW(GxEPD2_DISPLAY_CLASS)
#define MAX_HEIGHT(EPD) (EPD::HEIGHT <= MAX_DISPLAY_BUFFER_SIZE / (EPD::WIDTH / 8) ? EPD::HEIGHT : MAX_DISPLAY_BUFFER_SIZE / (EPD::WIDTH / 8))
#elif IS_GxEPD2_3C(GxEPD2_DISPLAY_CLASS) || IS_GxEPD2_4C(GxEPD2_DISPLAY_CLASS)
#define MAX_HEIGHT(EPD) (EPD::HEIGHT <= (MAX_DISPLAY_BUFFER_SIZE / 2) / (EPD::WIDTH / 8) ? EPD::HEIGHT : (MAX_DISPLAY_BUFFER_SIZE / 2) / (EPD::WIDTH / 8))
#elif IS_GxEPD2_7C(GxEPD2_DISPLAY_CLASS)
#define MAX_HEIGHT(EPD) (EPD::HEIGHT <= (MAX_DISPLAY_BUFFER_SIZE) / (EPD::WIDTH / 2) ? EPD::HEIGHT : (MAX_DISPLAY_BUFFER_SIZE) / (EPD::WIDTH / 2))
#endif
// adapt the constructor parameters to your wiring
GxEPD2_DISPLAY_CLASS<GxEPD2_DRIVER_CLASS, MAX_HEIGHT(GxEPD2_DRIVER_CLASS)> display(GxEPD2_DRIVER_CLASS(/*CS=D8*/ EPD_CS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4));
// mapping of Waveshare e-Paper ESP8266 Driver Board, new version
//GxEPD2_DISPLAY_CLASS<GxEPD2_DRIVER_CLASS, MAX_HEIGHT(GxEPD2_DRIVER_CLASS)> display(GxEPD2_DRIVER_CLASS(/*CS=15*/ EPD_CS, /*DC=4*/ 4, /*RST=2*/ 2, /*BUSY=5*/ 5));
// mapping of Waveshare e-Paper ESP8266 Driver Board, old version
//GxEPD2_DISPLAY_CLASS<GxEPD2_DRIVER_CLASS, MAX_HEIGHT(GxEPD2_DRIVER_CLASS)> display(GxEPD2_DRIVER_CLASS(/*CS=15*/ EPD_CS, /*DC=4*/ 4, /*RST=5*/ 5, /*BUSY=16*/ 16));
#undef MAX_DISPLAY_BUFFER_SIZE
#undef MAX_HEIGHT
#endif
#if defined(ESP32)
#define MAX_DISPLAY_BUFFER_SIZE 65536ul // e.g.
#if IS_GxEPD2_BW(GxEPD2_DISPLAY_CLASS)
#define MAX_HEIGHT(EPD) (EPD::HEIGHT <= MAX_DISPLAY_BUFFER_SIZE / (EPD::WIDTH / 8) ? EPD::HEIGHT : MAX_DISPLAY_BUFFER_SIZE / (EPD::WIDTH / 8))
#elif IS_GxEPD2_3C(GxEPD2_DISPLAY_CLASS) || IS_GxEPD2_4C(GxEPD2_DISPLAY_CLASS)
#define MAX_HEIGHT(EPD) (EPD::HEIGHT <= (MAX_DISPLAY_BUFFER_SIZE / 2) / (EPD::WIDTH / 8) ? EPD::HEIGHT : (MAX_DISPLAY_BUFFER_SIZE / 2) / (EPD::WIDTH / 8))
#elif IS_GxEPD2_7C(GxEPD2_DISPLAY_CLASS)
#define MAX_HEIGHT(EPD) (EPD::HEIGHT <= (MAX_DISPLAY_BUFFER_SIZE) / (EPD::WIDTH / 2) ? EPD::HEIGHT : (MAX_DISPLAY_BUFFER_SIZE) / (EPD::WIDTH / 2))
#endif
// adapt the constructor parameters to your wiring
#if !IS_GxEPD2_1248(GxEPD2_DRIVER_CLASS) && !IS_GxEPD2_1248c(GxEPD2_DRIVER_CLASS)
#if defined(ARDUINO_LOLIN_D32_PRO)
GxEPD2_DISPLAY_CLASS<GxEPD2_DRIVER_CLASS, MAX_HEIGHT(GxEPD2_DRIVER_CLASS)> display(GxEPD2_DRIVER_CLASS(/*CS=5*/ EPD_CS, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15)); // my LOLIN_D32_PRO proto board
#elif defined(ARDUINO_LOLIN_S2_MINI)
GxEPD2_DISPLAY_CLASS<GxEPD2_DRIVER_CLASS, MAX_HEIGHT(GxEPD2_DRIVER_CLASS)> display(GxEPD2_DRIVER_CLASS(/*CS*/ 33, /*DC=*/ 35, /*RST=*/ 37, /*BUSY=*/ 39)); // my LOLIN ESP32 S2 mini connection
#elif defined(ARDUINO_ESP32S3_DEV)
// ESP32E6-E01 : only 50 pin FPC works on actual version (11.1.2025)
GxEPD2_DISPLAY_CLASS<GxEPD2_DRIVER_CLASS, MAX_HEIGHT(GxEPD2_DRIVER_CLASS)> display(GxEPD2_DRIVER_CLASS(/*CS*/ 2, /*DC=*/ 3, /*RST=*/ 4, /*BUSY=*/ 5)); // Good Display ESP32E6-E01 board
#else
GxEPD2_DISPLAY_CLASS<GxEPD2_DRIVER_CLASS, MAX_HEIGHT(GxEPD2_DRIVER_CLASS)> display(GxEPD2_DRIVER_CLASS(/*CS=5*/ EPD_CS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // my suggested wiring and proto board
//GxEPD2_DISPLAY_CLASS<GxEPD2_DRIVER_CLASS, MAX_HEIGHT(GxEPD2_DRIVER_CLASS)> display(GxEPD2_DRIVER_CLASS(/*CS=5*/ 5, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // LILYGO_T5_V2.4.1
//GxEPD2_DISPLAY_CLASS<GxEPD2_DRIVER_CLASS, MAX_HEIGHT(GxEPD2_DRIVER_CLASS)> display(GxEPD2_DRIVER_CLASS(/*CS=5*/ EPD_CS, /*DC=*/ 19, /*RST=*/ 4, /*BUSY=*/ 34)); // LILYGO® TTGO T5 2.66
//GxEPD2_DISPLAY_CLASS<GxEPD2_DRIVER_CLASS, MAX_HEIGHT(GxEPD2_DRIVER_CLASS)> display(GxEPD2_DRIVER_CLASS(/*CS=5*/ EPD_CS, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4)); // e.g. TTGO T8 ESP32-WROVER
//GxEPD2_DISPLAY_CLASS<GxEPD2_DRIVER_CLASS, MAX_HEIGHT(GxEPD2_DRIVER_CLASS)> display(GxEPD2_DRIVER_CLASS(/*CS=*/ 15, /*DC=*/ 27, /*RST=*/ 26, /*BUSY=*/ 25)); // Waveshare ESP32 Driver Board
#endif
#else // GxEPD2_1248 or GxEPD2_1248c
// Waveshare 12.48 b/w or b/w/r SPI display board and frame or Good Display 12.48 b/w panel GDEW1248T3 or b/w/r panel GDEY1248Z51
// general constructor for use with all parameters, e.g. for Waveshare ESP32 driver board mounted on connection board
GxEPD2_DISPLAY_CLASS < GxEPD2_DRIVER_CLASS, MAX_HEIGHT(GxEPD2_DRIVER_CLASS) > display(GxEPD2_DRIVER_CLASS(/*sck=*/ 13, /*miso=*/ 12, /*mosi=*/ 14,
/*cs_m1=*/ 23, /*cs_s1=*/ 22, /*cs_m2=*/ 16, /*cs_s2=*/ 19,
/*dc1=*/ 25, /*dc2=*/ 17, /*rst1=*/ 33, /*rst2=*/ 5,
/*busy_m1=*/ 32, /*busy_s1=*/ 26, /*busy_m2=*/ 18, /*busy_s2=*/ 4));
#endif
#undef MAX_DISPLAY_BUFFER_SIZE
#undef MAX_HEIGHT
#endif
#if defined(ARDUINO_UNOR4_WIFI)
#define MAX_DISPLAY_BUFFER_SIZE 16384ul // e.g. half of available RAM
#if IS_GxEPD2_BW(GxEPD2_DISPLAY_CLASS)
#define MAX_HEIGHT(EPD) (EPD::HEIGHT <= MAX_DISPLAY_BUFFER_SIZE / (EPD::WIDTH / 8) ? EPD::HEIGHT : MAX_DISPLAY_BUFFER_SIZE / (EPD::WIDTH / 8))
#elif IS_GxEPD2_3C(GxEPD2_DISPLAY_CLASS) || IS_GxEPD2_4C(GxEPD2_DISPLAY_CLASS)
#define MAX_HEIGHT(EPD) (EPD::HEIGHT <= (MAX_DISPLAY_BUFFER_SIZE / 2) / (EPD::WIDTH / 8) ? EPD::HEIGHT : (MAX_DISPLAY_BUFFER_SIZE / 2) / (EPD::WIDTH / 8))
#elif IS_GxEPD2_7C(GxEPD2_DISPLAY_CLASS)
#define MAX_HEIGHT(EPD) (EPD::HEIGHT <= (MAX_DISPLAY_BUFFER_SIZE) / (EPD::WIDTH / 2) ? EPD::HEIGHT : (MAX_DISPLAY_BUFFER_SIZE) / (EPD::WIDTH / 2))
#endif
// adapt the constructor parameters to your wiring
GxEPD2_DISPLAY_CLASS<GxEPD2_DRIVER_CLASS, MAX_HEIGHT(GxEPD2_DRIVER_CLASS)> display(GxEPD2_DRIVER_CLASS(/*CS=*/ EPD_CS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7));
#endif
#if defined(ARDUINO_ARCH_RP2040)
#define MAX_DISPLAY_BUFFER_SIZE 131072ul // e.g. half of available ram
#if IS_GxEPD2_BW(GxEPD2_DISPLAY_CLASS)
#define MAX_HEIGHT(EPD) (EPD::HEIGHT <= MAX_DISPLAY_BUFFER_SIZE / (EPD::WIDTH / 8) ? EPD::HEIGHT : MAX_DISPLAY_BUFFER_SIZE / (EPD::WIDTH / 8))
#elif IS_GxEPD2_3C(GxEPD2_DISPLAY_CLASS) || IS_GxEPD2_4C(GxEPD2_DISPLAY_CLASS)
#define MAX_HEIGHT(EPD) (EPD::HEIGHT <= (MAX_DISPLAY_BUFFER_SIZE / 2) / (EPD::WIDTH / 8) ? EPD::HEIGHT : (MAX_DISPLAY_BUFFER_SIZE / 2) / (EPD::WIDTH / 8))
#elif IS_GxEPD2_7C(GxEPD2_DISPLAY_CLASS)
#define MAX_HEIGHT(EPD) (EPD::HEIGHT <= (MAX_DISPLAY_BUFFER_SIZE) / (EPD::WIDTH / 2) ? EPD::HEIGHT : (MAX_DISPLAY_BUFFER_SIZE) / (EPD::WIDTH / 2))
#endif
#if defined(ARDUINO_NANO_RP2040_CONNECT)
// adapt the constructor parameters to your wiring
GxEPD2_DISPLAY_CLASS<GxEPD2_DRIVER_CLASS, MAX_HEIGHT(GxEPD2_DRIVER_CLASS)> display(GxEPD2_DRIVER_CLASS(/*CS=*/ EPD_CS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7));
#endif
#if defined(ARDUINO_RASPBERRY_PI_PICO_W)
GxEPD2_DISPLAY_CLASS<GxEPD2_DRIVER_CLASS, MAX_HEIGHT(GxEPD2_DRIVER_CLASS)> display(GxEPD2_DRIVER_CLASS(/*CS=*/ 9, /*DC=*/ 8, /*RST=*/ 12, /*BUSY=*/ 13)); // Waveshare Pico-ePaper-2.9
#endif
#undef MAX_DISPLAY_BUFFER_SIZE
#undef MAX_HEIGHT
#endif
libraries/GxEPD2/examples/GxEPD2_WiFi_Example/GxEPD2_WiFi_Example.ino
+1039
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libraries/GxEPD2/examples/GxEPD2_WiFi_Example/GxEPD2_WiFi_Native4c.h
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@@ -0,0 +1,457 @@
uint8_t output_row_native4c_buffer[max_row_width / 4]; // buffer for at least one row of native color bits
uint8_t color4(uint16_t red, uint16_t green, uint16_t blue)
{
uint8_t cv4 = 0x00;
if ((red < 0x80) && (green < 0x80) && (blue < 0x80)) cv4 = 0x00; // black
else if ((red >= 0x80) && (green >= 0x80) && (blue >= 0x80)) cv4 = 0x01; // white
else if ((red >= 0x80) && (blue >= 0x80)) cv4 = 0x03; // red, blue > red
else if ((green >= 0x80) && (blue >= 0x80)) cv4 = 0x01; // green, blue > white
else if ((red >= 0x80) && (green >= 0xC0)) cv4 = 0x02; // yellow
else if ((red >= 0x80) && (green >= 0x40)) cv4 = 0x03; // orange > red
else if (red >= 0x80) cv4 = 0x03; // red
else if (green >= 0x80) cv4 = 0x00; // green > black
else cv4 = 0x03; // blue
return cv4;
}
void showNative4cFrom_HTTP(const char* host, const char* path, const char* filename, int16_t x, int16_t y)
{
WiFiClient client;
bool connection_ok = false;
bool valid = false; // valid format to be handled
bool flip = true; // bitmap is stored bottom-to-top
uint32_t startTime = millis();
if ((x >= display.epd2.WIDTH) || (y >= display.epd2.HEIGHT)) return;
Serial.println(); Serial.print("downloading file \""); Serial.print(filename); Serial.println("\"");
Serial.print("connecting to "); Serial.println(host);
if (!client.connect(host, httpPort))
{
Serial.println("connection failed");
return;
}
Serial.print("requesting URL: ");
Serial.println(String("http://") + host + path + filename);
client.print(String("GET ") + path + filename + " HTTP/1.1\r\n" +
"Host: " + host + "\r\n" +
"User-Agent: GxEPD2_WiFi_Example\r\n" +
"Connection: close\r\n\r\n");
Serial.println("request sent");
while (client.connected())
{
String line = client.readStringUntil('\n');
if (!connection_ok)
{
connection_ok = line.startsWith("HTTP/1.1 200 OK");
if (connection_ok) Serial.println(line);
}
if (!connection_ok) Serial.println(line);
if (line == "\r")
{
Serial.println("headers received");
break;
}
}
if (!connection_ok) return;
// Parse BMP header
if (read16(client) == 0x4D42) // BMP signature
{
uint32_t fileSize = read32(client);
uint32_t creatorBytes = read32(client); (void)creatorBytes; //unused
uint32_t imageOffset = read32(client); // Start of image data
uint32_t headerSize = read32(client);
uint32_t width = read32(client);
int32_t height = (int32_t) read32(client);
uint16_t planes = read16(client);
uint16_t depth = read16(client); // bits per pixel
uint32_t format = read32(client);
uint32_t bytes_read = 7 * 4 + 3 * 2; // read so far
if ((planes == 1) && ((format == 0) || (format == 3))) // uncompressed is handled, 565 also
{
Serial.print("File size: "); Serial.println(fileSize);
Serial.print("Image Offset: "); Serial.println(imageOffset);
Serial.print("Header size: "); Serial.println(headerSize);
Serial.print("Bit Depth: "); Serial.println(depth);
Serial.print("Image size: ");
Serial.print(width);
Serial.print('x');
Serial.println(abs(height));
// BMP rows are padded (if needed) to 4-byte boundary
uint32_t rowSize = (width * depth / 8 + 3) & ~3;
if (depth < 8) rowSize = ((width * depth + 8 - depth) / 8 + 3) & ~3;
if (height < 0)
{
height = -height;
flip = false;
}
uint16_t w = width;
uint16_t h = height;
if ((x + w - 1) >= display.epd2.WIDTH) w = display.epd2.WIDTH - x;
if ((y + h - 1) >= display.epd2.HEIGHT) h = display.epd2.HEIGHT - y;
if (w <= max_row_width) // handle with direct drawing
{
valid = true;
uint8_t bitmask = 0xFF;
uint8_t bitshift = 8 - depth;
uint16_t red, green, blue;
uint8_t cv4 = 0x00;
if (depth <= 8)
{
if (depth < 8) bitmask >>= depth;
bytes_read += skip(client, imageOffset - (4 << depth) - bytes_read); // 54 for regular, diff for colorsimportant
for (uint16_t pn = 0; pn < (1 << depth); pn++)
{
blue = client.read();
green = client.read();
red = client.read();
client.read();
bytes_read += 4;
rgb_palette_buffer[pn] = color4(red, green, blue);
}
}
display.clearScreen();
uint32_t rowPosition = flip ? imageOffset + (height - h) * rowSize : imageOffset;
bytes_read += skip(client, rowPosition - bytes_read);
for (uint16_t row = 0; row < h; row++, rowPosition += rowSize) // for each line
{
if (!connection_ok || !(client.connected() || client.available())) break;
delay(1); // yield() to avoid WDT
uint32_t in_remain = rowSize;
uint32_t in_idx = 0;
uint32_t in_bytes = 0;
uint8_t in_byte = 0; // for depth <= 8
uint8_t in_bits = 0; // for depth <= 8
uint8_t out_cv4_byte = 0x00;
uint32_t out_idx = 0;
for (uint16_t col = 0; col < w; col++) // for each pixel
{
yield();
if (!connection_ok || !(client.connected() || client.available())) break;
// Time to read more pixel data?
if (in_idx >= in_bytes) // ok, exact match for 24bit also (size IS multiple of 3)
{
uint32_t get = in_remain > sizeof(input_buffer) ? sizeof(input_buffer) : in_remain;
uint32_t got = read8n(client, input_buffer, get);
while ((got < get) && connection_ok)
{
//Serial.print("got "); Serial.print(got); Serial.print(" < "); Serial.print(get); Serial.print(" @ "); Serial.println(bytes_read);
uint32_t gotmore = read8n(client, input_buffer + got, get - got);
got += gotmore;
connection_ok = gotmore > 0;
}
in_bytes = got;
in_remain -= got;
bytes_read += got;
in_idx = 0;
}
if (!connection_ok)
{
Serial.print("Error: got no more after "); Serial.print(bytes_read); Serial.println(" bytes read!");
break;
}
switch (depth)
{
case 32:
blue = input_buffer[in_idx++];
green = input_buffer[in_idx++];
red = input_buffer[in_idx++];
in_idx++; // skip alpha
cv4 = color4(red, green, blue);
break;
case 24:
blue = input_buffer[in_idx++];
green = input_buffer[in_idx++];
red = input_buffer[in_idx++];
cv4 = color4(red, green, blue);
break;
case 16:
{
uint8_t lsb = input_buffer[in_idx++];
uint8_t msb = input_buffer[in_idx++];
if (format == 0) // 555
{
blue = (lsb & 0x1F) << 3;
green = ((msb & 0x03) << 6) | ((lsb & 0xE0) >> 2);
red = (msb & 0x7C) << 1;
}
else // 565
{
blue = (lsb & 0x1F) << 3;
green = ((msb & 0x07) << 5) | ((lsb & 0xE0) >> 3);
red = (msb & 0xF8);
}
}
cv4 = color4(red, green, blue);
break;
case 1:
case 2:
case 4:
case 8:
{
if (0 == in_bits)
{
in_byte = input_buffer[in_idx++];
in_bits = 8;
}
uint16_t pn = (in_byte >> bitshift) & bitmask;
cv4 = rgb_palette_buffer[pn];
in_byte <<= depth;
in_bits -= depth;
}
break;
}
out_cv4_byte |= cv4 << (2 * (3 - col % 4));
if ((3 == col % 4) || (col == w - 1)) // write that last byte! (for w%4!=0 border)
{
output_row_native4c_buffer[out_idx++] = out_cv4_byte;
out_cv4_byte = 0x00;
}
} // end pixel
int16_t yrow = y + (flip ? h - row - 1 : row);
display.writeNative(output_row_native4c_buffer, 0, x, yrow, w, 1, false, false, false);
} // end line
Serial.print("downloaded in ");
Serial.print(millis() - startTime);
Serial.println(" ms");
display.refresh();
}
Serial.print("bytes read "); Serial.println(bytes_read);
}
}
client.stop();
if (!valid)
{
Serial.println("bitmap format not handled.");
}
}
void showNative4cFrom_HTTPS(const char* host, const char* path, const char* filename, const char* fingerprint, int16_t x, int16_t y, bool with_color, const char* certificate)
{
// Use WiFiClientSecure class to create TLS connection
#if defined (ESP8266) || defined(ARDUINO_RASPBERRY_PI_PICO_W)
BearSSL::WiFiClientSecure client;
BearSSL::X509List cert(certificate ? certificate : certificate_rawcontent);
#else
WiFiClientSecure client;
#endif
bool connection_ok = false;
bool valid = false; // valid format to be handled
bool flip = true; // bitmap is stored bottom-to-top
uint32_t startTime = millis();
if ((x >= display.epd2.WIDTH) || (y >= display.epd2.HEIGHT)) return;
Serial.println(); Serial.print("downloading file \""); Serial.print(filename); Serial.println("\"");
Serial.print("connecting to "); Serial.println(host);
#if defined (ESP8266) || defined(ARDUINO_RASPBERRY_PI_PICO_W)
if (certificate) client.setTrustAnchors(&cert);
else if (fingerprint) client.setFingerprint(fingerprint);
else client.setInsecure();
#elif defined (ESP32)
if (certificate) client.setCACert(certificate);
#endif
if (!client.connect(host, httpsPort))
{
Serial.println("connection failed");
return;
}
Serial.print("requesting URL: ");
Serial.println(String("https://") + host + path + filename);
client.print(String("GET ") + path + filename + " HTTP/1.1\r\n" +
"Host: " + host + "\r\n" +
"User-Agent: GxEPD2_WiFi_Example\r\n" +
"Connection: close\r\n\r\n");
Serial.println("request sent");
while (client.connected())
{
String line = client.readStringUntil('\n');
if (!connection_ok)
{
connection_ok = line.startsWith("HTTP/1.1 200 OK");
if (connection_ok) Serial.println(line);
}
if (!connection_ok) Serial.println(line);
if (line == "\r")
{
Serial.println("headers received");
break;
}
}
if (!connection_ok) return;
// Parse BMP header
uint16_t signature = 0;
for (int16_t i = 0; i < 50; i++)
{
if (!client.available()) delay(100);
else signature = read16(client);
if (signature == 0x4D42) break;
}
if (signature == 0x4D42) // BMP signature
{
uint32_t fileSize = read32(client);
uint32_t creatorBytes = read32(client); (void)creatorBytes; //unused
uint32_t imageOffset = read32(client); // Start of image data
uint32_t headerSize = read32(client);
uint32_t width = read32(client);
int32_t height = (int32_t) read32(client);
uint16_t planes = read16(client);
uint16_t depth = read16(client); // bits per pixel
uint32_t format = read32(client);
uint32_t bytes_read = 7 * 4 + 3 * 2; // read so far
if ((planes == 1) && ((format == 0) || (format == 3))) // uncompressed is handled, 565 also
{
Serial.print("File size: "); Serial.println(fileSize);
Serial.print("Image Offset: "); Serial.println(imageOffset);
Serial.print("Header size: "); Serial.println(headerSize);
Serial.print("Bit Depth: "); Serial.println(depth);
Serial.print("Image size: ");
Serial.print(width);
Serial.print('x');
Serial.println(abs(height));
// BMP rows are padded (if needed) to 4-byte boundary
uint32_t rowSize = (width * depth / 8 + 3) & ~3;
if (depth < 8) rowSize = ((width * depth + 8 - depth) / 8 + 3) & ~3;
if (height < 0)
{
height = -height;
flip = false;
}
uint16_t w = width;
uint16_t h = height;
if ((x + w - 1) >= display.epd2.WIDTH) w = display.epd2.WIDTH - x;
if ((y + h - 1) >= display.epd2.HEIGHT) h = display.epd2.HEIGHT - y;
if (w <= max_row_width) // handle with direct drawing
{
valid = true;
uint8_t bitmask = 0xFF;
uint8_t bitshift = 8 - depth;
uint16_t red, green, blue;
uint8_t cv4 = 0x00;
if (depth <= 8)
{
if (depth < 8) bitmask >>= depth;
bytes_read += skip(client, imageOffset - (4 << depth) - bytes_read); // 54 for regular, diff for colorsimportant
for (uint16_t pn = 0; pn < (1 << depth); pn++)
{
blue = client.read();
green = client.read();
red = client.read();
client.read();
bytes_read += 4;
rgb_palette_buffer[pn] = color4(red, green, blue);
}
}
display.clearScreen();
uint32_t rowPosition = flip ? imageOffset + (height - h) * rowSize : imageOffset;
bytes_read += skip(client, rowPosition - bytes_read);
for (uint16_t row = 0; row < h; row++, rowPosition += rowSize) // for each line
{
if (!connection_ok || !(client.connected() || client.available())) break;
delay(1); // yield() to avoid WDT
uint32_t in_remain = rowSize;
uint32_t in_idx = 0;
uint32_t in_bytes = 0;
uint8_t in_byte = 0; // for depth <= 8
uint8_t in_bits = 0; // for depth <= 8
uint8_t out_cv4_byte = 0x00;
uint32_t out_idx = 0;
for (uint16_t col = 0; col < w; col++) // for each pixel
{
yield();
if (!connection_ok || !(client.connected() || client.available())) break;
// Time to read more pixel data?
if (in_idx >= in_bytes) // ok, exact match for 24bit also (size IS multiple of 3)
{
uint32_t get = in_remain > sizeof(input_buffer) ? sizeof(input_buffer) : in_remain;
uint32_t got = read8n(client, input_buffer, get);
while ((got < get) && connection_ok)
{
//Serial.print("got "); Serial.print(got); Serial.print(" < "); Serial.print(get); Serial.print(" @ "); Serial.println(bytes_read);
uint32_t gotmore = read8n(client, input_buffer + got, get - got);
got += gotmore;
connection_ok = gotmore > 0;
}
in_bytes = got;
in_remain -= got;
bytes_read += got;
in_idx = 0;
}
if (!connection_ok)
{
Serial.print("Error: got no more after "); Serial.print(bytes_read); Serial.println(" bytes read!");
break;
}
switch (depth)
{
case 32:
blue = input_buffer[in_idx++];
green = input_buffer[in_idx++];
red = input_buffer[in_idx++];
in_idx++; // skip alpha
cv4 = color4(red, green, blue);
break;
case 24:
blue = input_buffer[in_idx++];
green = input_buffer[in_idx++];
red = input_buffer[in_idx++];
cv4 = color4(red, green, blue);
break;
case 16:
{
uint8_t lsb = input_buffer[in_idx++];
uint8_t msb = input_buffer[in_idx++];
if (format == 0) // 555
{
blue = (lsb & 0x1F) << 3;
green = ((msb & 0x03) << 6) | ((lsb & 0xE0) >> 2);
red = (msb & 0x7C) << 1;
}
else // 565
{
blue = (lsb & 0x1F) << 3;
green = ((msb & 0x07) << 5) | ((lsb & 0xE0) >> 3);
red = (msb & 0xF8);
}
}
cv4 = color4(red, green, blue);
break;
case 1:
case 2:
case 4:
case 8:
{
if (0 == in_bits)
{
in_byte = input_buffer[in_idx++];
in_bits = 8;
}
uint16_t pn = (in_byte >> bitshift) & bitmask;
cv4 = rgb_palette_buffer[pn];
in_byte <<= depth;
in_bits -= depth;
}
break;
}
out_cv4_byte |= cv4 << (2 * (3 - col % 4));
if ((3 == col % 4) || (col == w - 1)) // write that last byte! (for w%4!=0 border)
{
output_row_native4c_buffer[out_idx++] = out_cv4_byte;
out_cv4_byte = 0x00;
}
} // end pixel
int16_t yrow = y + (flip ? h - row - 1 : row);
// void writeNative(const uint8_t* data1, const uint8_t* data2, int16_t x, int16_t y, int16_t w, int16_t h, bool invert, bool mirror_y, bool pgm)
display.writeNative(output_row_native4c_buffer, 0, x, yrow, w, 1, false, false, false);
} // end line
Serial.print("downloaded in ");
Serial.print(millis() - startTime);
Serial.println(" ms");
display.refresh();
}
Serial.print("bytes read "); Serial.println(bytes_read);
}
}
client.stop();
if (!valid)
{
Serial.println("bitmap format not handled.");
}
}
libraries/GxEPD2/examples/GxEPD2_WiFi_Example/GxEPD2_WiFi_Native7c.h
+479
View File
@@ -0,0 +1,479 @@
uint8_t color7(uint16_t red, uint16_t green, uint16_t blue)
{
uint8_t cv7 = 0x00;
if ((red < 0x80) && (green < 0x80) && (blue < 0x80)) cv7 = 0x00; // black
else if ((red >= 0x80) && (green >= 0x80) && (blue >= 0x80)) cv7 = 0x01; // white
else if ((red >= 0x80) && (blue >= 0x80)) cv7 = red > blue ? 0x04 : 0x03; // red, blue
else if ((green >= 0x80) && (blue >= 0x80)) cv7 = green > blue ? 0x02 : 0x03; // green, blue
else if ((red >= 0x80) && (green >= 0xC0)) cv7 = 0x05; // yellow
else if ((red >= 0x80) && (green >= 0x40)) cv7 = 0x06; // orange
else if (red >= 0x80) cv7 = 0x04; // red
else if (green >= 0x80) cv7 = 0x02; // green
else cv7 = 0x03; // blue
return cv7;
}
void whiteLine()
{
for (size_t i = 0; i < sizeof(output_row_native4c_buffer); i++) output_row_native4c_buffer[i] = 0x11;
}
void showNative7cFrom_HTTP(const char* host, const char* path, const char* filename, int16_t x, int16_t y)
{
WiFiClient client;
bool connection_ok = false;
bool valid = false; // valid format to be handled
bool flip = true; // bitmap is stored bottom-to-top
uint32_t startTime = millis();
if ((x >= display.epd2.WIDTH) || (y >= display.epd2.HEIGHT)) return;
Serial.println(); Serial.print("downloading file \""); Serial.print(filename); Serial.println("\"");
Serial.print("connecting to "); Serial.println(host);
if (!client.connect(host, httpPort))
{
Serial.println("connection failed");
return;
}
Serial.print("requesting URL: ");
Serial.println(String("http://") + host + path + filename);
client.print(String("GET ") + path + filename + " HTTP/1.1\r\n" +
"Host: " + host + "\r\n" +
"User-Agent: GxEPD2_WiFi_Example\r\n" +
"Connection: close\r\n\r\n");
Serial.println("request sent");
while (client.connected())
{
String line = client.readStringUntil('\n');
if (!connection_ok)
{
connection_ok = line.startsWith("HTTP/1.1 200 OK");
if (connection_ok) Serial.println(line);
}
if (!connection_ok) Serial.println(line);
if (line == "\r")
{
Serial.println("headers received");
break;
}
}
if (!connection_ok) return;
// Parse BMP header
if (read16(client) == 0x4D42) // BMP signature
{
uint32_t fileSize = read32(client);
uint32_t creatorBytes = read32(client); (void)creatorBytes; //unused
uint32_t imageOffset = read32(client); // Start of image data
uint32_t headerSize = read32(client);
uint32_t width = read32(client);
int32_t height = (int32_t) read32(client);
uint16_t planes = read16(client);
uint16_t depth = read16(client); // bits per pixel
uint32_t format = read32(client);
uint32_t bytes_read = 7 * 4 + 3 * 2; // read so far
if ((planes == 1) && ((format == 0) || (format == 3))) // uncompressed is handled, 565 also
{
Serial.print("File size: "); Serial.println(fileSize);
Serial.print("Image Offset: "); Serial.println(imageOffset);
Serial.print("Header size: "); Serial.println(headerSize);
Serial.print("Bit Depth: "); Serial.println(depth);
Serial.print("Image size: ");
Serial.print(width);
Serial.print('x');
Serial.println(abs(height));
// BMP rows are padded (if needed) to 4-byte boundary
uint32_t rowSize = (width * depth / 8 + 3) & ~3;
if (depth < 8) rowSize = ((width * depth + 8 - depth) / 8 + 3) & ~3;
if (height < 0)
{
height = -height;
flip = false;
}
uint16_t w = width;
uint16_t h = height;
if ((x + w - 1) >= display.epd2.WIDTH) w = display.epd2.WIDTH - x;
if ((y + h - 1) >= display.epd2.HEIGHT) h = display.epd2.HEIGHT - y;
if (w <= max_row_width) // handle with direct drawing
{
valid = true;
uint8_t bitmask = 0xFF;
uint8_t bitshift = 8 - depth;
uint16_t red, green, blue;
uint8_t cv7 = 0x00;
if (depth <= 8)
{
if (depth < 8) bitmask >>= depth;
bytes_read += skip(client, imageOffset - (4 << depth) - bytes_read); // 54 for regular, diff for colorsimportant
for (uint16_t pn = 0; pn < (1 << depth); pn++)
{
blue = client.read();
green = client.read();
red = client.read();
client.read();
bytes_read += 4;
rgb_palette_buffer[pn] = color7(red, green, blue);
}
}
display.epd2.setPaged();
whiteLine();
for (uint16_t l = 0; l < y; l++)
{
display.writeNative(output_row_native4c_buffer, 0, 0, l, display.epd2.WIDTH, 1, false, false, false);
}
uint32_t rowPosition = imageOffset;
bytes_read += skip(client, rowPosition - bytes_read);
for (uint16_t row = 0; row < h; row++, rowPosition += rowSize) // for each line
{
if (!connection_ok || !(client.connected() || client.available())) break;
delay(1); // yield() to avoid WDT
uint32_t in_remain = rowSize;
uint32_t in_idx = 0;
uint32_t in_bytes = 0;
uint8_t in_byte = 0; // for depth <= 8
uint8_t in_bits = 0; // for depth <= 8
uint8_t out_cv7_byte = 0x00;
uint32_t out_idx = 0;
for (uint16_t col = 0; col < w; col++) // for each pixel
{
yield();
if (!connection_ok || !(client.connected() || client.available())) break;
// Time to read more pixel data?
if (in_idx >= in_bytes) // ok, exact match for 24bit also (size IS multiple of 3)
{
uint32_t get = in_remain > sizeof(input_buffer) ? sizeof(input_buffer) : in_remain;
uint32_t got = read8n(client, input_buffer, get);
while ((got < get) && connection_ok)
{
//Serial.print("got "); Serial.print(got); Serial.print(" < "); Serial.print(get); Serial.print(" @ "); Serial.println(bytes_read);
uint32_t gotmore = read8n(client, input_buffer + got, get - got);
got += gotmore;
connection_ok = gotmore > 0;
}
in_bytes = got;
in_remain -= got;
bytes_read += got;
in_idx = 0;
}
if (!connection_ok)
{
Serial.print("Error: got no more after "); Serial.print(bytes_read); Serial.println(" bytes read!");
break;
}
switch (depth)
{
case 32:
blue = input_buffer[in_idx++];
green = input_buffer[in_idx++];
red = input_buffer[in_idx++];
in_idx++; // skip alpha
cv7 = color7(red, green, blue);
break;
case 24:
blue = input_buffer[in_idx++];
green = input_buffer[in_idx++];
red = input_buffer[in_idx++];
cv7 = color7(red, green, blue);
break;
case 16:
{
uint8_t lsb = input_buffer[in_idx++];
uint8_t msb = input_buffer[in_idx++];
if (format == 0) // 555
{
blue = (lsb & 0x1F) << 3;
green = ((msb & 0x03) << 6) | ((lsb & 0xE0) >> 2);
red = (msb & 0x7C) << 1;
}
else // 565
{
blue = (lsb & 0x1F) << 3;
green = ((msb & 0x07) << 5) | ((lsb & 0xE0) >> 3);
red = (msb & 0xF8);
}
}
cv7 = color7(red, green, blue);
break;
case 1:
case 2:
case 4:
case 8:
{
if (0 == in_bits)
{
in_byte = input_buffer[in_idx++];
in_bits = 8;
}
uint16_t pn = (in_byte >> bitshift) & bitmask;
cv7 = rgb_palette_buffer[pn];
in_byte <<= depth;
in_bits -= depth;
}
break;
}
out_cv7_byte |= cv7 << (4 * (1 - col % 2));
if ((1 == col % 2) || (col == w - 1)) // write that last byte! (for w%2!=0 border)
{
uint32_t bx = flip ? (display.epd2.WIDTH - x) / 2 - out_idx++ : x / 2 + out_idx++;
output_row_native4c_buffer[bx] = out_cv7_byte;
out_cv7_byte = 0x00;
}
} // end pixel
display.writeNative(output_row_native4c_buffer, 0, 0, y + row, display.epd2.WIDTH, 1, false, false, false);
} // end line
Serial.print("downloaded in ");
Serial.print(millis() - startTime);
Serial.println(" ms");
whiteLine();
for (uint16_t l = y + h; l < display.epd2.HEIGHT; l++)
{
display.writeNative(output_row_native4c_buffer, 0, 0, l, display.epd2.WIDTH, 1, false, false, false);
}
display.refresh();
}
Serial.print("bytes read "); Serial.println(bytes_read);
}
}
client.stop();
if (!valid)
{
Serial.println("bitmap format not handled.");
}
}
void showNative7cFrom_HTTPS(const char* host, const char* path, const char* filename, const char* fingerprint, int16_t x, int16_t y, bool with_color, const char* certificate)
{
// Use WiFiClientSecure class to create TLS connection
#if defined (ESP8266) || defined(ARDUINO_RASPBERRY_PI_PICO_W)
BearSSL::WiFiClientSecure client;
BearSSL::X509List cert(certificate ? certificate : certificate_rawcontent);
#else
WiFiClientSecure client;
#endif
bool connection_ok = false;
bool valid = false; // valid format to be handled
bool flip = true; // bitmap is stored bottom-to-top
uint32_t startTime = millis();
if ((x >= display.epd2.WIDTH) || (y >= display.epd2.HEIGHT)) return;
Serial.println(); Serial.print("downloading file \""); Serial.print(filename); Serial.println("\"");
Serial.print("connecting to "); Serial.println(host);
#if defined (ESP8266) || defined(ARDUINO_RASPBERRY_PI_PICO_W)
if (certificate) client.setTrustAnchors(&cert);
else if (fingerprint) client.setFingerprint(fingerprint);
else client.setInsecure();
#elif defined (ESP32)
if (certificate) client.setCACert(certificate);
#endif
if (!client.connect(host, httpsPort))
{
Serial.println("connection failed");
return;
}
Serial.print("requesting URL: ");
Serial.println(String("https://") + host + path + filename);
client.print(String("GET ") + path + filename + " HTTP/1.1\r\n" +
"Host: " + host + "\r\n" +
"User-Agent: GxEPD2_WiFi_Example\r\n" +
"Connection: close\r\n\r\n");
Serial.println("request sent");
while (client.connected())
{
String line = client.readStringUntil('\n');
if (!connection_ok)
{
connection_ok = line.startsWith("HTTP/1.1 200 OK");
if (connection_ok) Serial.println(line);
}
if (!connection_ok) Serial.println(line);
if (line == "\r")
{
Serial.println("headers received");
break;
}
}
if (!connection_ok) return;
// Parse BMP header
uint16_t signature = 0;
for (int16_t i = 0; i < 50; i++)
{
if (!client.available()) delay(100);
else signature = read16(client);
if (signature == 0x4D42) break;
}
if (signature == 0x4D42) // BMP signature
{
uint32_t fileSize = read32(client);
uint32_t creatorBytes = read32(client); (void)creatorBytes; //unused
uint32_t imageOffset = read32(client); // Start of image data
uint32_t headerSize = read32(client);
uint32_t width = read32(client);
int32_t height = (int32_t) read32(client);
uint16_t planes = read16(client);
uint16_t depth = read16(client); // bits per pixel
uint32_t format = read32(client);
uint32_t bytes_read = 7 * 4 + 3 * 2; // read so far
if ((planes == 1) && ((format == 0) || (format == 3))) // uncompressed is handled, 565 also
{
Serial.print("File size: "); Serial.println(fileSize);
Serial.print("Image Offset: "); Serial.println(imageOffset);
Serial.print("Header size: "); Serial.println(headerSize);
Serial.print("Bit Depth: "); Serial.println(depth);
Serial.print("Image size: ");
Serial.print(width);
Serial.print('x');
Serial.println(abs(height));
// BMP rows are padded (if needed) to 4-byte boundary
uint32_t rowSize = (width * depth / 8 + 3) & ~3;
if (depth < 8) rowSize = ((width * depth + 8 - depth) / 8 + 3) & ~3;
if (height < 0)
{
height = -height;
flip = false;
}
uint16_t w = width;
uint16_t h = height;
if ((x + w - 1) >= display.epd2.WIDTH) w = display.epd2.WIDTH - x;
if ((y + h - 1) >= display.epd2.HEIGHT) h = display.epd2.HEIGHT - y;
if (w <= max_row_width) // handle with direct drawing
{
valid = true;
uint8_t bitmask = 0xFF;
uint8_t bitshift = 8 - depth;
uint16_t red, green, blue;
uint8_t cv7 = 0x00;
if (depth <= 8)
{
if (depth < 8) bitmask >>= depth;
bytes_read += skip(client, imageOffset - (4 << depth) - bytes_read); // 54 for regular, diff for colorsimportant
for (uint16_t pn = 0; pn < (1 << depth); pn++)
{
blue = client.read();
green = client.read();
red = client.read();
client.read();
bytes_read += 4;
rgb_palette_buffer[pn] = color7(red, green, blue);
}
}
display.epd2.setPaged();
whiteLine();
for (uint16_t l = 0; l < y; l++)
{
display.writeNative(output_row_native4c_buffer, 0, 0, l, display.epd2.WIDTH, 1, false, false, false);
}
uint32_t rowPosition = imageOffset;
bytes_read += skip(client, rowPosition - bytes_read);
for (uint16_t row = 0; row < h; row++, rowPosition += rowSize) // for each line
{
if (!connection_ok || !(client.connected() || client.available())) break;
delay(1); // yield() to avoid WDT
uint32_t in_remain = rowSize;
uint32_t in_idx = 0;
uint32_t in_bytes = 0;
uint8_t in_byte = 0; // for depth <= 8
uint8_t in_bits = 0; // for depth <= 8
uint8_t out_cv7_byte = 0x00;
uint32_t out_idx = 0;
for (uint16_t col = 0; col < w; col++) // for each pixel
{
yield();
if (!connection_ok || !(client.connected() || client.available())) break;
// Time to read more pixel data?
if (in_idx >= in_bytes) // ok, exact match for 24bit also (size IS multiple of 3)
{
uint32_t get = in_remain > sizeof(input_buffer) ? sizeof(input_buffer) : in_remain;
uint32_t got = read8n(client, input_buffer, get);
while ((got < get) && connection_ok)
{
//Serial.print("got "); Serial.print(got); Serial.print(" < "); Serial.print(get); Serial.print(" @ "); Serial.println(bytes_read);
uint32_t gotmore = read8n(client, input_buffer + got, get - got);
got += gotmore;
connection_ok = gotmore > 0;
}
in_bytes = got;
in_remain -= got;
bytes_read += got;
in_idx = 0;
}
if (!connection_ok)
{
Serial.print("Error: got no more after "); Serial.print(bytes_read); Serial.println(" bytes read!");
break;
}
switch (depth)
{
case 32:
blue = input_buffer[in_idx++];
green = input_buffer[in_idx++];
red = input_buffer[in_idx++];
in_idx++; // skip alpha
cv7 = color7(red, green, blue);
break;
case 24:
blue = input_buffer[in_idx++];
green = input_buffer[in_idx++];
red = input_buffer[in_idx++];
cv7 = color7(red, green, blue);
break;
case 16:
{
uint8_t lsb = input_buffer[in_idx++];
uint8_t msb = input_buffer[in_idx++];
if (format == 0) // 555
{
blue = (lsb & 0x1F) << 3;
green = ((msb & 0x03) << 6) | ((lsb & 0xE0) >> 2);
red = (msb & 0x7C) << 1;
}
else // 565
{
blue = (lsb & 0x1F) << 3;
green = ((msb & 0x07) << 5) | ((lsb & 0xE0) >> 3);
red = (msb & 0xF8);
}
}
cv7 = color7(red, green, blue);
break;
case 1:
case 2:
case 4:
case 8:
{
if (0 == in_bits)
{
in_byte = input_buffer[in_idx++];
in_bits = 8;
}
uint16_t pn = (in_byte >> bitshift) & bitmask;
cv7 = rgb_palette_buffer[pn];
in_byte <<= depth;
in_bits -= depth;
}
break;
}
out_cv7_byte |= cv7 << (4 * (1 - col % 2));
if ((1 == col % 2) || (col == w - 1)) // write that last byte! (for w%2!=0 border)
{
uint32_t bx = flip ? (display.epd2.WIDTH - x) / 2 - out_idx++ : x / 2 + out_idx++;
output_row_native4c_buffer[bx] = out_cv7_byte;
out_cv7_byte = 0x00;
}
} // end pixel
display.writeNative(output_row_native4c_buffer, 0, 0, y + row, display.epd2.WIDTH, 1, false, false, false);
} // end line
Serial.print("downloaded in ");
Serial.print(millis() - startTime);
Serial.println(" ms");
whiteLine();
for (uint16_t l = y + h; l < display.epd2.HEIGHT; l++)
{
display.writeNative(output_row_native4c_buffer, 0, 0, l, display.epd2.WIDTH, 1, false, false, false);
}
display.refresh();
}
Serial.print("bytes read "); Serial.println(bytes_read);
}
}
client.stop();
if (!valid)
{
Serial.println("bitmap format not handled.");
}
}
libraries/GxEPD2/examples/GxEPD2_WiFi_Example/GxEPD2_github_raw_certs.h
+184
View File
@@ -0,0 +1,184 @@
// how to find the certificate was not easy. finally I found it using Mozilla Firefox.
// opened one of the bitmaps, e.g. https://raw.githubusercontent.com/ZinggJM/GxEPD2/master/extras/bitmaps/logo200x200.bmp
// clicked the lock symbol, Connection secure clicked >, show connection details, clicked More Information, clicked View Certificate, clicked Download PEM (cert),
// Opened the .pem file and copied the pem into R"CERT(...)CERT"; strings.
// for https://raw.githubusercontent.com the pem works on ESP8266 and ESP32, if time is set from ntp.
// but using a root certificate would preferred, as its validity may be longer. But this failed now.
const char github_io_pem [] PROGMEM = R"CERT(
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----
)CERT";
// 12:04.2024: the following no longer works, needs further investigation
// **********************************************************************
// http://cacerts.digicert.com/DigiCertTLSRSASHA2562020CA1-1.crt
// CN: DigiCert TLS RSA SHA256 2020 CA1 => name: DigiCert_TLS_RSA_SHA256_2020_CA1
// not valid before: 2021-04-14 00:00:00
// not valid after: 2031-04-13 23:59:59
const char cert_DigiCert_TLS_RSA_SHA256_2020_CA1 [] PROGMEM = R"CERT(
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----
)CERT";
// how to find the certificate was not easy. finally I found it using Mozilla Firefox.
// opened one of the bitmaps, e.g. https://raw.githubusercontent.com/ZinggJM/GxEPD2/master/extras/bitmaps/logo200x200.bmp
// clicked the lock symbol, Connection secure clicked >, show connection details, clicked More Information, clicked View Certificate, clicked Download PEM (chain),
// Opened the .pem file and copied the pems into R"CERT(...)CERT"; strings.
// for https://raw.githubusercontent.com all three pems work on ESP8266 and ESP32, if time is set from ntp.
// but using a root certificate is preferred, as its validity may be longer.
// https://raw.githubusercontent.com
// issued by DigiCert Inc : DigiCert TLS RSA SHA256 2020 CA1
// not valid before: Fri, 15 Mar 2024 00:00:00 GMT
// not valid after: Fri, 14 Mar 2025 23:59:59 GMT
const char github_io_chain_pem_first [] PROGMEM = R"CERT(
-----BEGIN CERTIFICATE-----
MIIHOTCCBiGgAwIBAgIQBj1JF0BNOeUTyz/uzRsuGzANBgkqhkiG9w0BAQsFADBZ
MQswCQYDVQQGEwJVUzEVMBMGA1UEChMMRGlnaUNlcnQgSW5jMTMwMQYDVQQDEypE
aWdpQ2VydCBHbG9iYWwgRzIgVExTIFJTQSBTSEEyNTYgMjAyMCBDQTEwHhcNMjQw
MzE1MDAwMDAwWhcNMjUwMzE0MjM1OTU5WjBnMQswCQYDVQQGEwJVUzETMBEGA1UE
CBMKQ2FsaWZvcm5pYTEWMBQGA1UEBxMNU2FuIEZyYW5jaXNjbzEVMBMGA1UEChMM
R2l0SHViLCBJbmMuMRQwEgYDVQQDDAsqLmdpdGh1Yi5pbzCCASIwDQYJKoZIhvcN
AQEBBQADggEPADCCAQoCggEBAK0rFKU6TEGvuLCY3ZOuXlG+3jerD6EP1gc1qe35
g68FqyGuVPOUddYNZiymjYMZxywoNp3qxlbFFBTf9etsayavT+uW+2UMjqCotAdK
KicBEspuExoACFuNgTi7sSUT7A55+k4/+5O+VtpaxQ5dmQk7HxcqvMYx5owBU+fB
wYDD+hXeg3YvxLZNeIlN8OlqWL8w9HbG+3ccegVEjOJQbkrcrW7IQMq2Uk92XjxI
PmMVIvaefqcC1poGYvS4VvEh3x64vJK1hEM4YLMKBaE/hqFtcMozi+H/8JqTCfzP
Qhnu21HIop9rSucxxnZbe9AeHz2LERpUTf3rjgOMg9PB1RUCAwEAAaOCA+0wggPp
MB8GA1UdIwQYMBaAFHSFgMBmx9833s+9KTeqAx2+7c0XMB0GA1UdDgQWBBTob1fr
hlGY65+lvlPa25SsKC777TB7BgNVHREEdDByggsqLmdpdGh1Yi5pb4IJZ2l0aHVi
LmlvghVnaXRodWJ1c2VyY29udGVudC5jb22CDnd3dy5naXRodWIuY29tggwqLmdp
dGh1Yi5jb22CFyouZ2l0aHVidXNlcmNvbnRlbnQuY29tggpnaXRodWIuY29tMD4G
A1UdIAQ3MDUwMwYGZ4EMAQICMCkwJwYIKwYBBQUHAgEWG2h0dHA6Ly93d3cuZGln
aWNlcnQuY29tL0NQUzAOBgNVHQ8BAf8EBAMCBaAwHQYDVR0lBBYwFAYIKwYBBQUH
AwEGCCsGAQUFBwMCMIGfBgNVHR8EgZcwgZQwSKBGoESGQmh0dHA6Ly9jcmwzLmRp
Z2ljZXJ0LmNvbS9EaWdpQ2VydEdsb2JhbEcyVExTUlNBU0hBMjU2MjAyMENBMS0x
LmNybDBIoEagRIZCaHR0cDovL2NybDQuZGlnaWNlcnQuY29tL0RpZ2lDZXJ0R2xv
YmFsRzJUTFNSU0FTSEEyNTYyMDIwQ0ExLTEuY3JsMIGHBggrBgEFBQcBAQR7MHkw
JAYIKwYBBQUHMAGGGGh0dHA6Ly9vY3NwLmRpZ2ljZXJ0LmNvbTBRBggrBgEFBQcw
AoZFaHR0cDovL2NhY2VydHMuZGlnaWNlcnQuY29tL0RpZ2lDZXJ0R2xvYmFsRzJU
TFNSU0FTSEEyNTYyMDIwQ0ExLTEuY3J0MAwGA1UdEwEB/wQCMAAwggF/BgorBgEE
AdZ5AgQCBIIBbwSCAWsBaQB2AE51oydcmhDDOFts1N8/Uusd8OCOG41pwLH6ZLFi
mjnfAAABjkN89oAAAAQDAEcwRQIgU/M527Wcx0KQ3II7kCuG5WMuOHRSxKkf1xAj
JuSkyPACIQCVX0uurcIA2Ug7ipNN2S1ZygukWqJCh7hjIH0XsrXh8QB2AH1ZHhLh
eCp7HGFnfF79+NCHXBSgTpWeuQMv2Q6MLnm4AAABjkN89oEAAAQDAEcwRQIgCxpL
BDak+TWKarrCHlZn4DlqwEfAN3lvlgSo21HQuU8CIQDicrb72c0lA2suMWPWT92P
FLaRvFrFn9HVzI6Vh50YZgB3AObSMWNAd4zBEEEG13G5zsHSQPaWhIb7uocyHf0e
N45QAAABjkN89pQAAAQDAEgwRgIhAPJQX4QArFCjM0sKKzsWLmqmmU8lMhKEYR2T
ges1AQyQAiEA2Y3VhP5RG+dapcbwYgVbrTlgWzO7KE/lg1x11CVcz3QwDQYJKoZI
hvcNAQELBQADggEBAHKlvzObJBxxgyLaUNCEFf37mNFsUtXmaWvkmcfIt9V+TZ7Q
mtvjx5bsd5lqAflp/eqk4+JYpnYcKWrZfM/vMdxPQTeh/VQWewY/hYn6X/V1s2JI
MtjqEkW4aotVdWjHVvsx4rAjz5vtub/wVYgtrU8jusH3TVpT9/0AoFhKE5m2IS7M
Ig7wKR+DDxoNj4fFFluxteVNgbtwuJcb23NkBQqfHXCvQWqxXZZA4Nwl/WoGPoGG
dW5qVOc3BlhtITW53ASyhvKC7HArhj7LwQH8C/dRgn1agIHP9vVJ1NaZnPXhK98T
ohv++OO0E/F/bVGNWVnLBQ4v5PjQzRQUTGvM2mU=
-----END CERTIFICATE-----
)CERT";
const char github_io_chain_pem_second [] PROGMEM = R"CERT(
-----BEGIN CERTIFICATE-----
MIIEyDCCA7CgAwIBAgIQDPW9BitWAvR6uFAsI8zwZjANBgkqhkiG9w0BAQsFADBh
MQswCQYDVQQGEwJVUzEVMBMGA1UEChMMRGlnaUNlcnQgSW5jMRkwFwYDVQQLExB3
d3cuZGlnaWNlcnQuY29tMSAwHgYDVQQDExdEaWdpQ2VydCBHbG9iYWwgUm9vdCBH
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-----END CERTIFICATE-----
)CERT";
const char github_io_chain_pem_third [] PROGMEM = R"CERT(
-----BEGIN CERTIFICATE-----
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MrY=
-----END CERTIFICATE-----
)CERT";