T5 V2.4.1 ESP32 2.13 Inch Electronic Yellow Black and White ink e-Paper Screen Module with Speaker

Support for GDEH029A1 / SSD1608 based ePaper modules in 4-wire SPI mode. Support for other controllers will be added later emulated 4-bit gray scale mode

SPI displays oriented SPI driver library based on spi-master driver

Combined DMA SPI transfer mode and direct SPI for maximal speed

4-bit Grayscale mode or 1-bit b/w mode can be selected during runtime

SPI speeds up to 20 MHz are tested and works without problems

Demo application included which demonstrates most of the library features

EPD_drawPixel Draw pixel at given x,y coordinates

EPD_drawLine Draw line between two points

EPD_drawFastVLine, EPD_drawFastHLine Draw vertical or horizontal line of given lenght

EPD_drawLineByAngle Draw line on screen from (x,y) point at given angle

EPD_drawRect, EPD_fillRect Draw rectangle on screen or fill given rectangular screen region with color

EPD_drawRoundRect, EPD_fillRoundRect Draw rectangle on screen or fill given rectangular screen region with color with rounded corners

EPD_drawCircle, EPD_fillCircle Draw or fill circle on screen

EPD_drawEllipse, EPD_fillEllipse Draw or fill ellipse on screen

EPD_drawTriangel, EPD_fillTriangle Draw or fill triangle on screen

EPD_drawArc Draw circle arc on screen, from ~ to given angles, with given thickness. Can be outlined with different color

EPD_drawPolygon Draw poligon on screen with given number of sides (3~60). Can be outlined with different color and rotated by given angle.

fixed width and proportional fonts are supported; 8 fonts embeded

unlimited number of fonts from file

7-segment vector font with variable width/height is included (only numbers and few characters)

Proportional fonts can be used in fixed width mode.

Related functions:

EPD_setFont Set current font from one of embeded fonts or font file

EPD_getfontsize Returns current font height & width in pixels.

EPD_getfontheight Returns current font height in pixels.

set_7seg_font_atrib Set atributes for 7 segment vector font

getFontCharacters Get all font's characters to buffer

EPD_print Write text to display.

Strings can be printed at any angle. Rotation of the displayed text depends on font_ratate variable (0~360)

if font_transparent variable is set to 1, no background pixels will be printed

If the text does not fit the screen/window width it will be clipped ( if text_wrap=0 ), or continued on next line ( if text_wrap=1 )

Two special characters are allowed in strings: r CR (0x0D), clears the display to EOL, n LF (ox0A), continues to the new line, x=0

Special values can be entered for X position:

CENTER centers the text

RIGHT right justifies the text horizontaly

LASTX continues from last X position; offset can be used: LASTX+n

Special values can be entered for Y:

CENTER centers the text verticaly

BOTTOM bottom justifies the text

LASTY continues from last Y position; offset can be used: LASTY+n

EPD_getStringWidth Returns the string width in pixels based on current font characteristics. Useful for positioning strings on the screen.

EPD_clearStringRect Fills the rectangle occupied by string with current background color

EPD_jpg_image Decodes and displays JPG images

Limits:

Baseline only. Progressive and Lossless JPEG format are not supported.

Image size: Up to 65520 x 65520 pixels

Color space: YCbCr three components only. Gray scale image is not supported.

Sampling factor: 4:4:4, 4:2:2 or 4:2:0.

Can display the image from file or memory buffer

Image can be scaled by factor 0 ~ 3 (1/1, 1/2, 1/4 or 1/8)

Image is displayed from X,Y position on screen/window:

X: image left position; constants CENTER & RIGHT can be used; negative value is accepted

Y: image top position; constants CENTER & BOTTOM can be used; negative value is accepted

Image is converted to 4-bit Gray Scale mode

EPD_fillScreen Fill the whole screen with black, white or gray scale

compile_font_file Function which compiles font c source file to font file which can be used in EPD_setFont() function to select external font. Created file have the same name as source file and extension .fnt

1 x T5 V2.4.1 ESP32 2.13 Inch screen