Meadow.Foundation.Displays.Lcd.CharacterDisplay 1.4.0.3

Meadow.Foundation.Displays.Lcd.CharacterDisplay

Digital and I2C LCD character displays

The CharacterDisplay library is designed for the Wilderness Labs Meadow .NET IoT platform and is part of Meadow.Foundation.

The Meadow.Foundation peripherals library is an open-source repository of drivers and libraries that streamline and simplify adding hardware to your C# .NET Meadow IoT application.

For more information on developing for Meadow, visit developer.wildernesslabs.co.

To view all Wilderness Labs open-source projects, including samples, visit github.com/wildernesslabs.

Usage

CharacterDisplay display;

public override Task Initialize()
{
    //InitGpio();
    //InitGpioWithPWM();
    //InitI2c();
    InitGrove();

    return base.Initialize();
}

void InitGpio()
{
    Resolver.Log.Info("InitGpio...");

    display = new CharacterDisplay
    (
        pinRS: Device.Pins.D10,
        pinE: Device.Pins.D09,
        pinD4: Device.Pins.D08,
        pinD5: Device.Pins.D07,
        pinD6: Device.Pins.D06,
        pinD7: Device.Pins.D05,
        rows: 4, columns: 20
    );
}

void InitGpioWithPWM()
{
    Resolver.Log.Info("InitGpioWithPWM...");

    display = new CharacterDisplay
    (
        pinV0: Device.Pins.D11,
        pinRS: Device.Pins.D10,
        pinE: Device.Pins.D09,
        pinD4: Device.Pins.D08,
        pinD5: Device.Pins.D07,
        pinD6: Device.Pins.D06,
        pinD7: Device.Pins.D05,
        rows: 4, columns: 20
    );
}

void InitI2c()
{
    Resolver.Log.Info("InitI2c...");

    display = new CharacterDisplay
    (
        i2cBus: Device.CreateI2cBus(I2cBusSpeed.Standard),
        address: (byte)I2cCharacterDisplay.Addresses.Default,
        rows: 4, columns: 20
    );
}

void InitGrove()
{
    Resolver.Log.Info("InitGrove...");

    display = new CharacterDisplay
    (
        i2cBus: Device.CreateI2cBus(I2cBusSpeed.Standard),
        address: (byte)I2cCharacterDisplay.Addresses.Grove,
        rows: 2, columns: 16,
        isGroveDisplay: true
    );
}

void TestCharacterDisplay()
{
    Resolver.Log.Info("TestCharacterDisplay...");

    display.WriteLine("Hello", 0);

    display.WriteLine("Display", 1);

    Thread.Sleep(1000);
    display.WriteLine("Will delete in", 0);

    int count = 5;
    while (count > 0)
    {
        display.WriteLine($"{count--}", 1);
        Thread.Sleep(500);
    }

    display.ClearLines();
    Thread.Sleep(2000);

    display.WriteLine("Cursor test", 0);

    for (int i = 0; i < display.DisplayConfig.Width; i++)
    {
        display.SetCursorPosition((byte)i, 1);
        display.Write("*");
        Thread.Sleep(100);
        display.SetCursorPosition((byte)i, 1);
        display.Write(" ");
    }

    display.ClearLines();
    display.WriteLine("Complete!", 0);
}

public override Task Run()
{
    TestCharacterDisplay();

    Resolver.Log.Info("Test complete");

    return base.Run();
}

How to Contribute

• Found a bug? Report an issue
• Have a feature idea or driver request? Open a new feature request
• Want to contribute code? Fork the Meadow.Foundation repository and submit a pull request against the develop branch

Need Help?

If you have questions or need assistance, please join the Wilderness Labs community on Slack.