Struct eink_waveshare_rs::EPD4in2

pub struct EPD4in2<SPI, CS, BUSY, DC, RST, D> { /* fields omitted */ }

EPD4in2 driver

Trait Implementations

impl<SPI, CS, BUSY, DC, RST, Delay, ERR> WaveshareInterface<SPI, CS, BUSY, DC, RST, Delay, ERR> for EPD4in2<SPI, CS, BUSY, DC, RST, Delay> where     SPI: Write<u8, Error = ERR>,     CS: OutputPin,     BUSY: InputPin,     DC: OutputPin,     RST: OutputPin,     Delay: DelayUs<u16> + DelayMs<u16>,

fn new(     spi: SPI,     cs: CS,     busy: BUSY,     dc: DC,     rst: RST,     delay: Delay ) -> Result<Self, ERR>

Creates a new driver from a SPI peripheral, CS Pin, Busy InputPin, DC

This already initialises the device. That means init() isn't needed directly afterwards

Example

//buffer = some image data;

let mut epd4in2 = EPD4in2::new(spi, cs, busy, dc, rst, delay);

epd4in2.display_and_transfer_frame(buffer, None);

epd4in2.sleep();

fn wake_up(&mut self) -> Result<(), ERR>

fn sleep(&mut self) -> Result<(), ERR>

Let the device enter deep-sleep mode to save power.

fn update_frame(&mut self, buffer: &[u8]) -> Result<(), ERR>

Transmit a full frame to the SRAM of the DPD

fn update_partial_frame(     &mut self,     buffer: &[u8],     x: u16,     y: u16,     width: u16,     height: u16 ) -> Result<(), ERR>

Transmits partial data to the SRAM of the EPD

fn display_frame(&mut self) -> Result<(), ERR>

Displays the frame data from SRAM

fn clear_frame(&mut self) -> Result<(), ERR>

Clears the frame from the buffer with the declared background color The background color can be changed with [set_background_color]

fn set_background_color(&mut self, color: Color)

Sets the backgroundcolor for various commands like WaveshareInterface::clear_frame()

fn background_color(&self) -> &Color

Get current background color

fn get_width(&self) -> u16

Get the width of the display

fn get_height(&self) -> u16

Get the height of the display

fn delay_ms(&mut self, delay: u16)

Abstraction of setting the delay for simpler calls

fn update_and_display_frame(&mut self, buffer: &[u8]) -> Result<(), ERR>

Loads a full image on the EPD and displays it

fn update_and_display_partial_frame(     &mut self,     buffer: &[u8],     x: u16,     y: u16,     width: u16,     height: u16 ) -> Result<(), ERR>

Loads a partial image on the EPD and displays it