Remarks

Epd4in2bV2
Status
Source code	GitHub
NuGet package

Characteristic	Locus
Inheritance	object EPaperBase EPaperTriColorBase > Epd4in2bV2
Implements	ISpiPeripheral IDisposable IGraphicsDisplay
Inherited Members	EPaperTriColorBase.imageBuffer EPaperTriColorBase.CreateBuffer(int, int) EPaperTriColorBase.Clear(bool) EPaperTriColorBase.Fill(Color, bool) EPaperTriColorBase.Fill(int, int, int, int, Color) EPaperTriColorBase.Clear(bool, bool) EPaperTriColorBase.DrawPixel(int, int, bool) EPaperTriColorBase.DrawBlackPixel(int, int, bool) EPaperTriColorBase.InvertPixel(int, int) EPaperTriColorBase.DrawColoredPixel(int, int, bool) EPaperTriColorBase.DrawPixel(int, int, Color) EPaperTriColorBase.WriteBuffer(int, int, IPixelBuffer) EPaperTriColorBase.SendCommand(EPaperTriColorBase.Command) EPaperTriColorBase.EnabledColor EPaperTriColorBase.DisabledColor EPaperTriColorBase.ColorMode EPaperTriColorBase.SupportedColorModes EPaperTriColorBase.Width EPaperTriColorBase.Height EPaperTriColorBase.PixelBuffer EPaperBase.commandBuffer EPaperBase.dataCommandPort EPaperBase.resetPort EPaperBase.chipSelectPort EPaperBase.busyPort EPaperBase.spiComms EPaperBase.DataState EPaperBase.CommandState EPaperBase.createdPorts EPaperBase.Write(byte) EPaperBase.DelayMs(int) EPaperBase.SendCommand(byte) EPaperBase.SendData(int) EPaperBase.SendData(byte) EPaperBase.SendData(byte[]) EPaperBase.WaitUntilIdle() EPaperBase.Dispose() EPaperBase.Dispose(bool) EPaperBase.DefaultSpiBusSpeed EPaperBase.SpiBusSpeed EPaperBase.DefaultSpiBusMode EPaperBase.SpiBusMode EPaperBase.IsDisposed object.Equals(object) object.Equals(object, object) object.GetHashCode() object.GetType() object.MemberwiseClone() object.ReferenceEquals(object, object) object.ToString()
Namespace	Meadow.Foundation.Displays
Assembly	ePaperWaveShare.dll

Syntax

public class Epd4in2bV2 : EPaperTriColorBase, ISpiPeripheral, IDisposable, IGraphicsDisplay

Constructors

Epd4in2bV2(ISpiBus, IDigitalOutputPort, IDigitalOutputPort, IDigitalOutputPort, IDigitalInputPort)

Create a new WaveShare Epd4in2b V2 ePaper 400x300 pixel display object

Declaration

public Epd4in2bV2(ISpiBus spiBus, IDigitalOutputPort chipSelectPort, IDigitalOutputPort dataCommandPort, IDigitalOutputPort resetPort, IDigitalInputPort busyPort)

Parameters

Type	Name	Description
ISpiBus	spiBus	SPI bus connected to display
IDigitalOutputPort	chipSelectPort	Chip select output port
IDigitalOutputPort	dataCommandPort	Data command output port
IDigitalOutputPort	resetPort	Reset output port
IDigitalInputPort	busyPort	Busy input port

Remarks

Epd4in2bV2
Status
Source code	GitHub
NuGet package

Epd4in2bV2(ISpiBus, IPin, IPin, IPin, IPin)

Create a new WaveShare Epd4in2b V2 400x300 pixel display object

Declaration

public Epd4in2bV2(ISpiBus spiBus, IPin chipSelectPin, IPin dcPin, IPin resetPin, IPin busyPin)

Parameters

Type	Name	Description
ISpiBus	spiBus	SPI bus connected to display
IPin	chipSelectPin	Chip select pin
IPin	dcPin	Data command pin
IPin	resetPin	Reset pin
IPin	busyPin	Busy pin

Remarks

Epd4in2bV2
Status
Source code	GitHub
NuGet package

Properties

IsBlackInverted

Does the display invert data for black pixels

Declaration

protected override bool IsBlackInverted { get; }

Property Value

Type	Description
bool

Overrides

EPaperTriColorBase.IsBlackInverted

Remarks

Epd4in2bV2
Status
Source code	GitHub
NuGet package

IsColorInverted

Does the display invert data for color pixels

Declaration

protected override bool IsColorInverted { get; }

Property Value

Type	Description
bool

Overrides

EPaperTriColorBase.IsColorInverted

Remarks

Epd4in2bV2
Status
Source code	GitHub
NuGet package

Methods

ClearFrame()

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

Declaration

protected virtual void ClearFrame()

Remarks

Epd4in2bV2
Status
Source code	GitHub
NuGet package

DisplayFrame()

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

Declaration

public void DisplayFrame()

Remarks

Epd4in2bV2
Status
Source code	GitHub
NuGet package

Initialize()

Initialize the display

Declaration

protected override void Initialize()

Overrides

EPaperTriColorBase.Initialize()

Remarks

Epd4in2bV2
Status
Source code	GitHub
NuGet package

Reset()

Reset the display

Declaration

protected override void Reset()

Overrides

EPaperBase.Reset()

Remarks

Epd4in2bV2
Status
Source code	GitHub
NuGet package

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

Set partial window for display updates

Declaration

protected void SetPartialWindow(byte[] bufferBlack, byte[] bufferColor, int x, int y, int width, int height)

Parameters

Type	Name	Description
byte[]	bufferBlack	The buffer with black pixel data
byte[]	bufferColor	The buffer with color pixel data
int	x	The x start position in pixels
int	y	The y start position in pixels
int	width	The width to update in pixels
int	height	The height to update in pixels

Remarks

Epd4in2bV2
Status
Source code	GitHub
NuGet package

SetPartialWindowBlack(byte[], int, int, int, int)

Set partial window for display updates

Declaration

protected void SetPartialWindowBlack(byte[] bufferBlack, int x, int y, int width, int height)

Parameters

Type	Name	Description
byte[]	bufferBlack	The buffer with black pixel data
int	x	The x start position in pixels
int	y	The y start position in pixels
int	width	The width to update in pixels
int	height	The height to update in pixels

Remarks

Epd4in2bV2
Status
Source code	GitHub
NuGet package

SetPartialWindowColor(byte[], int, int, int, int)

Set partial window for display updates

Declaration

protected void SetPartialWindowColor(byte[] bufferColor, int x, int y, int width, int height)

Parameters

Type	Name	Description
byte[]	bufferColor	The buffer with color pixel data
int	x	The x start position in pixels
int	y	The y start position in pixels
int	width	The width to update in pixels
int	height	The height to update in pixels

Remarks

Epd4in2bV2
Status
Source code	GitHub
NuGet package

Show()

Copy the display buffer to the display

Declaration

public override void Show()

Overrides

EPaperTriColorBase.Show()

Remarks

Epd4in2bV2
Status
Source code	GitHub
NuGet package

Show(int, int, int, int)

Copy the display buffer to the display for a set region

Declaration

public override void Show(int left, int top, int right, int bottom)

Parameters

Type	Name	Description
int	left	left bounds of region in pixels
int	top	top bounds of region in pixels
int	right	right bounds of region in pixels
int	bottom	bottom bounds of region in pixels

Overrides

EPaperTriColorBase.Show(int, int, int, int)

Remarks

Epd4in2bV2
Status
Source code	GitHub
NuGet package

Sleep()

Set the device to low power mode

Declaration

protected virtual void Sleep()

Remarks

Epd4in2bV2
Status
Source code	GitHub
NuGet package