Class Epd7in5V2

Represents an WaveShare Epd7in5 v2 ePaper display 800x480, 7.5inch e-Ink display, SPI interface

Assembly: ePaperWaveShare.dll

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Declaration

public class Epd7in5V2 : EPaperBase, 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

Properties

ColorMode

The currently set color mode for the display

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Declaration

public ColorMode ColorMode { get; protected set; }

SupportedColorModes

The Color mode supported by the display

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Declaration

public ColorMode SupportedColorModes { get; }

PixelBuffer

Provide a buffer that matches this display's color depth, height, and width This should be the buffer that is sent to the device when Show is called

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Declaration

public IPixelBuffer PixelBuffer { get; }

EnabledColor

The color to draw when a pixel is enabled

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Declaration

public Color EnabledColor { get; }

DisabledColor

The color to draw when a pixel is disabled

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Declaration

public Color DisabledColor { get; }

Width

Width of display in pixels

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Declaration

public int Width { get; }

Height

Height of display in pixels

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Declaration

public int Height { get; }

MinimumRefreshInterval

The minimum delay required by the hardware between screen redraws

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Declaration

public TimeSpan MinimumRefreshInterval { get; }

Fields

imageBuffer

Buffer to hold display data

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Declaration

protected IPixelBuffer imageBuffer

Methods

Initialize()

Initialize the display driver

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Declaration

protected void Initialize()

Clear(bool)

Clear display buffer

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Declaration

public void Clear(bool updateDisplay = false)

Parameters

Type	Name	Description
System.Boolean	updateDisplay	force display update

Clear(bool, bool)

Clear the display

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Declaration

public void Clear(bool enabled, bool updateDisplay = false)

Parameters

Type	Name	Description
System.Boolean	enabled	Set the display to the enabled or disabled color (defaults are black and white)
System.Boolean	updateDisplay	Update the display once the buffer has been cleared when true

Fill(Color, bool)

Clear the display

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Declaration

public void Fill(Color color, bool updateDisplay = false)

Parameters

Type	Name	Description
Meadow.Color	color	Color to set the display
System.Boolean	updateDisplay	Update the display once the buffer has been cleared when true

Fill(int, int, int, int, Color)

Fill the display buffer with a color

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Declaration

public void Fill(int x, int y, int width, int height, Color color)

Parameters

Type	Name	Description
System.Int32	x	x location in pixels to start fill
System.Int32	y	y location in pixels to start fill
System.Int32	width	width in pixels to fill
System.Int32	height	height in pixels to fill
Meadow.Color	color	color to fill

DrawPixel(int, int, bool)

Draw a single pixel

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Declaration

public void DrawPixel(int x, int y, bool enabled)

Parameters

Type	Name	Description
System.Int32	x	x location
System.Int32	y	y location
System.Boolean	enabled	Turn the pixel on (true) or off (false)

DrawPixel(int, int, Color)

Draw a single pixel

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Declaration

public void DrawPixel(int x, int y, Color color)

Parameters

Type	Name	Description
System.Int32	x	x location
System.Int32	y	y location
Meadow.Color	color	Color of pixel

InvertPixel(int, int)

Invert color of pixel

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Declaration

public void InvertPixel(int x, int y)

Parameters

Type	Name	Description
System.Int32	x	x coordinate of pixel
System.Int32	y	y coordinate of pixel

WriteBuffer(int, int, IPixelBuffer)

Draw a buffer at a specific location

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Declaration

public void WriteBuffer(int x, int y, IPixelBuffer displayBuffer)

Parameters

Type	Name	Description
System.Int32	x	x location in pixels
System.Int32	y	y location in pixels
Meadow.Peripherals.Displays.IPixelBuffer	displayBuffer

Reset()

Reset the display

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Declaration

protected override void Reset()

SetPartialWindow(int, int, int, int)

Set partial address window to update display

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Declaration

protected void SetPartialWindow(int x, int y, int width, int height)

Parameters

Type	Name	Description
System.Int32	x	X start position in pixels
System.Int32	y	Y start position in pixels
System.Int32	width	Width in pixels
System.Int32	height	Height in pixels

Show()

Copy the display buffer to the display If called more frequently than every 3 seconds, a not supported exception will be thrown

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Declaration

public void Show()

Exceptions

System.NotSupportedException
Thrown if called more frequently than every 3 seconds

Show(int, int, int, int)

Copy the display buffer to the display for a set region If called more frequently than every 3 seconds, a not supported exception will be thrown

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Declaration

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

Parameters

Type	Name	Description
System.Int32	left	left bounds of region in pixels
System.Int32	top	top bounds of region in pixels
System.Int32	right	right bounds of region in pixels
System.Int32	bottom	bottom bounds of region in pixels

Exceptions

System.NotSupportedException
Thrown if called more frequently than every 3 seconds

DisplayFrame()

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

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Declaration

public void DisplayFrame()

Sleep()

Set the device to low power mode

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Declaration

protected void Sleep()

Implements

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