Meadow.Foundation.Displays.Ssd1681

Ssd1681
Status
Source code	GitHub
Datasheet(s)	GitHub
NuGet package

The Ssd1681 is a two-color display controller for ePaper displays. Data is sent to the controller via SPI and supports full screen updates only.

The Ssd1681 is paired with a wide range of two color ePaper display sizes and resolutions.

Sample projects available on GitHub

Code Example

MicroGraphics graphics;

public override Task Initialize()
{
    Resolver.Log.Info("Initialize ...");

    var display = new Ssd1681(
        spiBus: Device.CreateSpiBus(),
        chipSelectPin: Device.Pins.A04,
        dcPin: Device.Pins.A03,
        resetPin: Device.Pins.A02,
        busyPin: Device.Pins.A01,
        width: 200,
        height: 200);

    graphics = new MicroGraphics(display);

    return base.Initialize();
}

public override Task Run()
{
    Resolver.Log.Info("Run ...");

    graphics.Clear();

    graphics.DrawRectangle(10, 40, 120, 60, Color.Black, true);
    graphics.DrawRectangle(20, 80, 120, 90, Color.Red, true);

    graphics.CurrentFont = new Font12x16();
    graphics.DrawText(2, 20, "Meadow F7", Color.Black);
    graphics.DrawText(30, 50, "Color", Color.Red);
    graphics.DrawText(50, 90, "Black", Color.Black);
    graphics.DrawText(50, 120, "White", Color.White);

    graphics.Show();

    return base.Run();
}

Sample project(s) available on GitHub

Wiring Example

To control a Ssd1681 from Meadow, connect the following:

Ssd1681	Meadow Pin
BUSY	D15
RST	D14
DC	D13
CS	D12
CLK	SCK
DIN	MOSI
GND	GND
3V3	3V3

If your display does not include any of the above pins, they can be omitted. Pass NULL into the constructor for the missing pin(s).

Class Ssd1681

Represents an Ssd1681 ePaper B/W or color display commonly 1.54" 200x200, e-Ink three-color display, SPI interface

Assembly: EPaper.dll

View Source

Declaration

public class Ssd1681 : EPaperTriColorBase, 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

IsBlackInverted

Is black inverted on this display

View Source

Declaration

protected override bool IsBlackInverted { get; }

IsColorInverted

Is color inverted on this display

View Source

Declaration

protected override bool IsColorInverted { get; }

Methods

Initialize()

Initialize the display

View Source

Declaration

protected override void Initialize()

Show(int, int, int, int)

Send the display buffer to the display and refresh

View Source

Declaration

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

Parameters

Type	Name
System.Int32	left
System.Int32	top
System.Int32	right
System.Int32	bottom

Show()

Send the display buffer to the display and refresh

View Source

Declaration

public override void Show()

ClearFrame()

Clear the on-display frame buffer

View Source

Declaration

protected void ClearFrame()

Implements

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