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Meadow.Foundation.Displays.Epd4in2

Epd4in2
StatusStatus badge: working
Source codeGitHub
NuGet packageNuGet Gallery for Meadow.Foundation.Displays.ePaperWaveShare

Class Epd4in2

Represents an WaveShare Epd4in2 ePaper display 400x300, 4.2inch e-Ink display, SPI interface

Assembly: ePaperWaveShare.dll
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Declaration
public class Epd4in2 : EPaperMonoBase, ISpiPeripheral, IDisposable, IPixelDisplay, IDisplay

Inheritance: System.Object -> Meadow.Foundation.Displays.EPaperBase

Implements:
Meadow.Hardware.ISpiPeripheral, System.IDisposable, Meadow.Peripherals.Displays.IPixelDisplay, Meadow.Peripherals.Displays.IDisplay

Methods

Initialize()

Initialize the display driver

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Declaration
protected override void Initialize()

Reset()

Reset the display

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Declaration
protected override void Reset()

SetPartialWindow(byte[], int, int, int, int)

Set partial address window to update display

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Declaration
protected void SetPartialWindow(byte[] buffer, int x, int y, int width, int height)
Parameters
TypeNameDescription
System.Byte[]bufferThe internal display buffer
System.Int32xX start position in pixels
System.Int32yY start position in pixels
System.Int32widthWidth in pixels
System.Int32heightHeight in pixels

Show(int, int, int, int)

Copy the display buffer to the display for a set region

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Declaration
public override void Show(int left, int top, int right, int bottom)
Parameters
TypeNameDescription
System.Int32leftleft bounds of region in pixels
System.Int32toptop bounds of region in pixels
System.Int32rightright bounds of region in pixels
System.Int32bottombottom bounds of region in pixels

Show()

Copy the display buffer to the display

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Declaration
public override void Show()

ClearFrame()

Clear the frame data from the SRAM, this doesn't update the display

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Declaration
protected virtual void ClearFrame()

DisplayFrame()

Send a refresh command to the display Does not transfer new data

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Declaration
public override void DisplayFrame()

Sleep()

Set the device to low power mode

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Declaration
protected override void Sleep()

Implements

  • Meadow.Hardware.ISpiPeripheral
  • System.IDisposable
  • Meadow.Peripherals.Displays.IPixelDisplay
  • Meadow.Peripherals.Displays.IDisplay