Module epd_waveshare::epd2in9bc

A simple Driver for the Waveshare 2.9“ (B/C) E-Ink Display via SPI

Example for the 2.9“ E-Ink Display

use embedded_graphics::{
    pixelcolor::BinaryColor::On as Black, prelude::*, primitives::{Line, PrimitiveStyle},
};
use epd_waveshare::{epd2in9bc::*, prelude::*};

// Setup EPD
let mut epd = Epd2in9bc::new(&mut spi, cs_pin, busy_in, dc, rst, &mut delay)?;

// Use display graphics from embedded-graphics
// This display is for the black/white pixels
let mut mono_display = Display2in9bc::default();

// Use embedded graphics for drawing
// A black line
let _ = Line::new(Point::new(0, 120), Point::new(0, 200))
    .into_styled(PrimitiveStyle::with_stroke(Black, 1))
    .draw(&mut mono_display);

// Use a second display for red/yellow
let mut chromatic_display = Display2in9bc::default();

// We use `Black` but it will be shown as red/yellow
let _ = Line::new(Point::new(15, 120), Point::new(15, 200))
    .into_styled(PrimitiveStyle::with_stroke(Black, 1))
    .draw(&mut chromatic_display);

// Display updated frame
epd.update_color_frame(
    &mut spi,
    &mono_display.buffer(),
    &chromatic_display.buffer()
)?;
epd.display_frame(&mut spi, &mut delay)?;

// Set the EPD to sleep
epd.sleep(&mut spi, &mut delay)?;

Structs

Display2in9bc

Full size buffer for use with the 2in9b/c EPD

Epd2in9bc

Epd2in9bc driver

Constants

DEFAULT_BACKGROUND_COLOR

Default background color (white) of epd2in9bc display

HEIGHT

Height of epd2in9bc in pixels

WIDTH

Width of epd2in9bc in pixels