Meadow.Foundation.Displays.Pcd8544

Pcd8544
Status
Source code	GitHub
Datasheet(s)	GitHub
NuGet package

The PCD8544 display, also known as a Nokia 5110 LCD, is a single color 84x84 LCD display. Data is sent to the display via SPI. The also typically also include an LED backlight controlled via a single pin.

These displays have excellent visibility in daylight, even without the backlight, making them a good choice for builds with low-power restrictions and require visibility is bright light or daylight.

Code Example

MicroGraphics graphics;

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

    var display = new Pcd8544
    (
        spiBus: Device.CreateSpiBus(),
        chipSelectPin: Device.Pins.D01,
        dcPin: Device.Pins.D00,
        resetPin: Device.Pins.D02
    );

    graphics = new MicroGraphics(display);

    return base.Initialize();
}

public override Task Run()
{
    graphics.Clear(true);
    graphics.CurrentFont = new Font8x12();
    graphics.DrawText(0, 0, "PCD8544");
    graphics.DrawRectangle(5, 14, 30, 10, true);

    graphics.Show();

    return base.Run();
}

Sample project(s) available on GitHub

Wiring Example

To wire a PCD8544 to your Meadow board, connect the following:

PCD8544	Meadow Pin
GND	GND
LIGHT	GND
VCC	3V3
CLK	SCK
DIN	COPI
DC	D00
CE	D01
RST	D02