Remarks

St7796s
Status Status badge: working
Source code GitHub
Datasheet(s) GitHub
NuGet package NuGet Gallery for Meadow.Foundation.Displays.TftSpi

Code Example

MicroGraphics graphics;

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

    var spiBus = Device.CreateSpiBus();

    Resolver.Log.Info("Create display driver instance");

    var display = new St7796s
    (
        spiBus: spiBus,
        resetPin: Device.Pins.D00,
        chipSelectPin: Device.Pins.D02,
        dcPin: Device.Pins.D01,
        width: 96, height: 64
    );

    graphics = new MicroGraphics(display);
    graphics.CurrentFont = new Font8x8();

    return base.Initialize();
}

public override Task Run()
{
    graphics.Clear();

    graphics.DrawTriangle(10, 10, 50, 50, 10, 50, Meadow.Foundation.Color.Red);
    graphics.DrawRectangle(20, 15, 40, 20, Meadow.Foundation.Color.Yellow, false);
    graphics.DrawText(5, 5, "Meadow F7");

    graphics.Show();

    return base.Run();
}

Sample project(s) available on GitHub

Wiring Example

To wire a St7796s to your Meadow board, connect the following:

St7796s Meadow Pin
GND GND
VCC 3V3
SCL SCK
SDA MOSI
CS D02
DC D01
RESET D00

It should look like the following diagram:

Wiring a St7796s to a Meadow F7

Characteristic Locus
Inheritance object TftSpiBase > St7796s
Implements IGraphicsDisplay ISpiPeripheral IDisposable IRotatableDisplay
Inherited Members TftSpiBase.SetAddressBuffer TftSpiBase.ColorMode TftSpiBase.Rotation TftSpiBase.Width TftSpiBase.Height TftSpiBase.PixelBuffer TftSpiBase.DefaultSpiBusSpeed TftSpiBase.SpiBusSpeed TftSpiBase.DefaultSpiBusMode TftSpiBase.SpiBusMode TftSpiBase.IsDisposed TftSpiBase.dataCommandPort TftSpiBase.resetPort TftSpiBase.chipSelectPort TftSpiBase.spiDisplay TftSpiBase.imageBuffer TftSpiBase.readBuffer TftSpiBase.Data TftSpiBase.Command TftSpiBase.nativeHeight TftSpiBase.nativeWidth TftSpiBase.setAddressLastX0 TftSpiBase.setAddressLastX1 TftSpiBase.setAddressLastY0 TftSpiBase.setAddressLastY1 TftSpiBase.IsColorTypeSupported(ColorMode) TftSpiBase.CreateBuffer(ColorMode, int, int) TftSpiBase.SetAddressWindow(int, int, int, int) TftSpiBase.Clear(bool) TftSpiBase.Fill(Color, bool) TftSpiBase.WriteBuffer(int, int, IPixelBuffer) TftSpiBase.DrawPixel(int, int, bool) TftSpiBase.DrawPixel(int, int, Color) TftSpiBase.DrawPixel(int, int, byte, byte, byte) TftSpiBase.InvertPixel(int, int) TftSpiBase.Fill(int, int, int, int, Color) TftSpiBase.Show() TftSpiBase.Show(int, int, int, int) TftSpiBase.Write(byte) TftSpiBase.Write(byte[]) TftSpiBase.DelayMs(int) TftSpiBase.SendCommand(TftSpiBase.Register) TftSpiBase.SendCommand(TftSpiBase.LcdCommand) TftSpiBase.SendCommand(byte) TftSpiBase.SendData(int) TftSpiBase.SendData(byte) TftSpiBase.SendData(byte[]) TftSpiBase.Clear(Color) TftSpiBase.UpdateBuffer() TftSpiBase.Dispose() TftSpiBase.Dispose(bool) object.Equals(object) object.Equals(object, object) object.GetHashCode() object.GetType() object.MemberwiseClone() object.ReferenceEquals(object, object) object.ToString()
Namespace Meadow.Foundation.Displays
Assembly TftSpi.dll

Syntax

public class St7796s : TftSpiBase, IGraphicsDisplay, ISpiPeripheral, IDisposable, IRotatableDisplay

Constructors

St7796s(ISpiBus, IDigitalOutputPort, IDigitalOutputPort, IDigitalOutputPort, int, int, ColorMode)

Create a new St7796s color display object

Declaration
public St7796s(ISpiBus spiBus, IDigitalOutputPort chipSelectPort, IDigitalOutputPort dataCommandPort, IDigitalOutputPort resetPort, int width = 320, int height = 480, ColorMode colorMode = ColorMode.Format12bppRgb444)

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

int width

Width of display in pixels

int height

Height of display in pixels

ColorMode colorMode

The color mode to use for the display buffer

Remarks

St7796s
Status Status badge: working
Source code GitHub
Datasheet(s) GitHub
NuGet package NuGet Gallery for Meadow.Foundation.Displays.TftSpi

Code Example

MicroGraphics graphics;

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

    var spiBus = Device.CreateSpiBus();

    Resolver.Log.Info("Create display driver instance");

    var display = new St7796s
    (
        spiBus: spiBus,
        resetPin: Device.Pins.D00,
        chipSelectPin: Device.Pins.D02,
        dcPin: Device.Pins.D01,
        width: 96, height: 64
    );

    graphics = new MicroGraphics(display);
    graphics.CurrentFont = new Font8x8();

    return base.Initialize();
}

public override Task Run()
{
    graphics.Clear();

    graphics.DrawTriangle(10, 10, 50, 50, 10, 50, Meadow.Foundation.Color.Red);
    graphics.DrawRectangle(20, 15, 40, 20, Meadow.Foundation.Color.Yellow, false);
    graphics.DrawText(5, 5, "Meadow F7");

    graphics.Show();

    return base.Run();
}

Sample project(s) available on GitHub

Wiring Example

To wire a St7796s to your Meadow board, connect the following:

St7796s Meadow Pin
GND GND
VCC 3V3
SCL SCK
SDA MOSI
CS D02
DC D01
RESET D00

It should look like the following diagram:

Wiring a St7796s to a Meadow F7

St7796s(ISpiBus, IPin, IPin, IPin, int, int, ColorMode)

Create a new St7796s color display object

Declaration
public St7796s(ISpiBus spiBus, IPin chipSelectPin, IPin dcPin, IPin resetPin, int width = 320, int height = 480, ColorMode colorMode = ColorMode.Format12bppRgb444)

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

int width

Width of display in pixels

int height

Height of display in pixels

ColorMode colorMode

The color mode to use for the display buffer

Remarks

St7796s
Status Status badge: working
Source code GitHub
Datasheet(s) GitHub
NuGet package NuGet Gallery for Meadow.Foundation.Displays.TftSpi

Code Example

MicroGraphics graphics;

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

    var spiBus = Device.CreateSpiBus();

    Resolver.Log.Info("Create display driver instance");

    var display = new St7796s
    (
        spiBus: spiBus,
        resetPin: Device.Pins.D00,
        chipSelectPin: Device.Pins.D02,
        dcPin: Device.Pins.D01,
        width: 96, height: 64
    );

    graphics = new MicroGraphics(display);
    graphics.CurrentFont = new Font8x8();

    return base.Initialize();
}

public override Task Run()
{
    graphics.Clear();

    graphics.DrawTriangle(10, 10, 50, 50, 10, 50, Meadow.Foundation.Color.Red);
    graphics.DrawRectangle(20, 15, 40, 20, Meadow.Foundation.Color.Yellow, false);
    graphics.DrawText(5, 5, "Meadow F7");

    graphics.Show();

    return base.Run();
}

Sample project(s) available on GitHub

Wiring Example

To wire a St7796s to your Meadow board, connect the following:

St7796s Meadow Pin
GND GND
VCC 3V3
SCL SCK
SDA MOSI
CS D02
DC D01
RESET D00

It should look like the following diagram:

Wiring a St7796s to a Meadow F7

Properties

DefaultColorMode

The default display color mode

Declaration
public override ColorMode DefaultColorMode { get; }

Property Value

Type Description
ColorMode

Overrides

Remarks

St7796s
Status Status badge: working
Source code GitHub
Datasheet(s) GitHub
NuGet package NuGet Gallery for Meadow.Foundation.Displays.TftSpi

Code Example

MicroGraphics graphics;

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

    var spiBus = Device.CreateSpiBus();

    Resolver.Log.Info("Create display driver instance");

    var display = new St7796s
    (
        spiBus: spiBus,
        resetPin: Device.Pins.D00,
        chipSelectPin: Device.Pins.D02,
        dcPin: Device.Pins.D01,
        width: 96, height: 64
    );

    graphics = new MicroGraphics(display);
    graphics.CurrentFont = new Font8x8();

    return base.Initialize();
}

public override Task Run()
{
    graphics.Clear();

    graphics.DrawTriangle(10, 10, 50, 50, 10, 50, Meadow.Foundation.Color.Red);
    graphics.DrawRectangle(20, 15, 40, 20, Meadow.Foundation.Color.Yellow, false);
    graphics.DrawText(5, 5, "Meadow F7");

    graphics.Show();

    return base.Run();
}

Sample project(s) available on GitHub

Wiring Example

To wire a St7796s to your Meadow board, connect the following:

St7796s Meadow Pin
GND GND
VCC 3V3
SCL SCK
SDA MOSI
CS D02
DC D01
RESET D00

It should look like the following diagram:

Wiring a St7796s to a Meadow F7

SupportedColorModes

The color modes supported by the display

Declaration
public override ColorMode SupportedColorModes { get; }

Property Value

Type Description
ColorMode

Overrides

Remarks

St7796s
Status Status badge: working
Source code GitHub
Datasheet(s) GitHub
NuGet package NuGet Gallery for Meadow.Foundation.Displays.TftSpi

Code Example

MicroGraphics graphics;

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

    var spiBus = Device.CreateSpiBus();

    Resolver.Log.Info("Create display driver instance");

    var display = new St7796s
    (
        spiBus: spiBus,
        resetPin: Device.Pins.D00,
        chipSelectPin: Device.Pins.D02,
        dcPin: Device.Pins.D01,
        width: 96, height: 64
    );

    graphics = new MicroGraphics(display);
    graphics.CurrentFont = new Font8x8();

    return base.Initialize();
}

public override Task Run()
{
    graphics.Clear();

    graphics.DrawTriangle(10, 10, 50, 50, 10, 50, Meadow.Foundation.Color.Red);
    graphics.DrawRectangle(20, 15, 40, 20, Meadow.Foundation.Color.Yellow, false);
    graphics.DrawText(5, 5, "Meadow F7");

    graphics.Show();

    return base.Run();
}

Sample project(s) available on GitHub

Wiring Example

To wire a St7796s to your Meadow board, connect the following:

St7796s Meadow Pin
GND GND
VCC 3V3
SCL SCK
SDA MOSI
CS D02
DC D01
RESET D00

It should look like the following diagram:

Wiring a St7796s to a Meadow F7

Methods

Initialize()

Initialize the display

Declaration
protected override void Initialize()

Overrides

Remarks

St7796s
Status Status badge: working
Source code GitHub
Datasheet(s) GitHub
NuGet package NuGet Gallery for Meadow.Foundation.Displays.TftSpi

Code Example

MicroGraphics graphics;

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

    var spiBus = Device.CreateSpiBus();

    Resolver.Log.Info("Create display driver instance");

    var display = new St7796s
    (
        spiBus: spiBus,
        resetPin: Device.Pins.D00,
        chipSelectPin: Device.Pins.D02,
        dcPin: Device.Pins.D01,
        width: 96, height: 64
    );

    graphics = new MicroGraphics(display);
    graphics.CurrentFont = new Font8x8();

    return base.Initialize();
}

public override Task Run()
{
    graphics.Clear();

    graphics.DrawTriangle(10, 10, 50, 50, 10, 50, Meadow.Foundation.Color.Red);
    graphics.DrawRectangle(20, 15, 40, 20, Meadow.Foundation.Color.Yellow, false);
    graphics.DrawText(5, 5, "Meadow F7");

    graphics.Show();

    return base.Run();
}

Sample project(s) available on GitHub

Wiring Example

To wire a St7796s to your Meadow board, connect the following:

St7796s Meadow Pin
GND GND
VCC 3V3
SCL SCK
SDA MOSI
CS D02
DC D01
RESET D00

It should look like the following diagram:

Wiring a St7796s to a Meadow F7

SetRotation(RotationType)

Set the display rotation

Declaration
public void SetRotation(RotationType rotation)

Parameters

Type Name Description
RotationType rotation

The rotation value

Remarks

St7796s
Status Status badge: working
Source code GitHub
Datasheet(s) GitHub
NuGet package NuGet Gallery for Meadow.Foundation.Displays.TftSpi

Code Example

MicroGraphics graphics;

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

    var spiBus = Device.CreateSpiBus();

    Resolver.Log.Info("Create display driver instance");

    var display = new St7796s
    (
        spiBus: spiBus,
        resetPin: Device.Pins.D00,
        chipSelectPin: Device.Pins.D02,
        dcPin: Device.Pins.D01,
        width: 96, height: 64
    );

    graphics = new MicroGraphics(display);
    graphics.CurrentFont = new Font8x8();

    return base.Initialize();
}

public override Task Run()
{
    graphics.Clear();

    graphics.DrawTriangle(10, 10, 50, 50, 10, 50, Meadow.Foundation.Color.Red);
    graphics.DrawRectangle(20, 15, 40, 20, Meadow.Foundation.Color.Yellow, false);
    graphics.DrawText(5, 5, "Meadow F7");

    graphics.Show();

    return base.Run();
}

Sample project(s) available on GitHub

Wiring Example

To wire a St7796s to your Meadow board, connect the following:

St7796s Meadow Pin
GND GND
VCC 3V3
SCL SCK
SDA MOSI
CS D02
DC D01
RESET D00

It should look like the following diagram:

Wiring a St7796s to a Meadow F7