Syntax
public class CharacterDisplay : ITextDisplay
Examples
The following example shows how to print an incrementing counter every second on the LCD display:
using Meadow;
using Meadow.Devices;
using Meadow.Foundation.Displays.Lcd;
using System;
using System.Threading;
namespace LedSample
{
public class Program
{
static IApp app;
public static void Main()
{
Console.WriteLine("Hello LCD");
app = new CharacterDisplayApp();
Thread.Sleep(Timeout.Infinite);
}
}
class CharacterDisplayApp : App<F7Micro, CharacterDisplayApp>
{
CharacterDisplay display;
public CharacterDisplayApp()
{
display = new CharacterDisplay(
Device,
pinRS: Device.Pins.D05,
pinE: Device.Pins.D07,
pinD4: Device.Pins.D08,
pinD5: Device.Pins.D09,
pinD6: Device.Pins.D10,
pinD7: Device.Pins.D11,
rows: 2, columns: 16 // Adjust dimensions to fit your display
);
int count = 0;
display.WriteLine("CharacterDisplay", 0);
while (true)
{
display.WriteLine($"Count is : {count++}", 1);
System.Threading.Thread.Sleep(1000);
}
}
}
}
Example Circuit

Constructors
View Source
CharacterDisplay(IDigitalOutputPort, IDigitalOutputPort, IDigitalOutputPort, IDigitalOutputPort, IDigitalOutputPort, IDigitalOutputPort, UInt16, UInt16)
Declaration
public CharacterDisplay(IDigitalOutputPort portRS, IDigitalOutputPort portE, IDigitalOutputPort portD4, IDigitalOutputPort portD5, IDigitalOutputPort portD6, IDigitalOutputPort portD7, ushort rows = 4, ushort columns = 20)
Parameters
Type |
Name |
Description |
IDigitalOutputPort |
portRS |
|
IDigitalOutputPort |
portE |
|
IDigitalOutputPort |
portD4 |
|
IDigitalOutputPort |
portD5 |
|
IDigitalOutputPort |
portD6 |
|
IDigitalOutputPort |
portD7 |
|
System.UInt16 |
rows |
|
System.UInt16 |
columns |
|
View Source
CharacterDisplay(IIODevice, IPin, IPin, IPin, IPin, IPin, IPin, UInt16, UInt16)
Declaration
public CharacterDisplay(IIODevice device, IPin pinRS, IPin pinE, IPin pinD4, IPin pinD5, IPin pinD6, IPin pinD7, ushort rows = 4, ushort columns = 20)
Parameters
Type |
Name |
Description |
IIODevice |
device |
|
IPin |
pinRS |
|
IPin |
pinE |
|
IPin |
pinD4 |
|
IPin |
pinD5 |
|
IPin |
pinD6 |
|
IPin |
pinD7 |
|
System.UInt16 |
rows |
|
System.UInt16 |
columns |
|
Fields
View Source
LCD_D4
Declaration
protected IDigitalOutputPort LCD_D4
Field Value
Type |
Description |
IDigitalOutputPort |
|
View Source
LCD_D5
Declaration
protected IDigitalOutputPort LCD_D5
Field Value
Type |
Description |
IDigitalOutputPort |
|
View Source
LCD_D6
Declaration
protected IDigitalOutputPort LCD_D6
Field Value
Type |
Description |
IDigitalOutputPort |
|
View Source
LCD_D7
Declaration
protected IDigitalOutputPort LCD_D7
Field Value
Type |
Description |
IDigitalOutputPort |
|
View Source
LCD_E
Declaration
protected IDigitalOutputPort LCD_E
Field Value
Type |
Description |
IDigitalOutputPort |
|
View Source
LCD_RS
Declaration
protected IDigitalOutputPort LCD_RS
Field Value
Type |
Description |
IDigitalOutputPort |
|
View Source
LED_ON
Declaration
protected IDigitalOutputPort LED_ON
Field Value
Type |
Description |
IDigitalOutputPort |
|
Properties
View Source
DisplayConfig
Declaration
public TextDisplayConfig DisplayConfig { get; protected set; }
Property Value
Type |
Description |
TextDisplayConfig |
|
Methods
View Source
Clear()
Declaration
View Source
ClearLine(Byte)
Declaration
public void ClearLine(byte lineNumber)
Parameters
Type |
Name |
Description |
System.Byte |
lineNumber |
|
View Source
SaveCustomCharacter(Byte[], Byte)
Declaration
public void SaveCustomCharacter(byte[] characterMap, byte address)
Parameters
Type |
Name |
Description |
System.Byte[] |
characterMap |
|
System.Byte |
address |
|
View Source
SetBrightness(Single)
Declaration
public void SetBrightness(float brightness = 0.75F)
Parameters
Type |
Name |
Description |
System.Single |
brightness |
|
View Source
SetCursorPosition(Byte, Byte)
Declaration
public void SetCursorPosition(byte column, byte line)
Parameters
Type |
Name |
Description |
System.Byte |
column |
|
System.Byte |
line |
|
View Source
Write(String)
Declaration
public void Write(string text)
Parameters
Type |
Name |
Description |
System.String |
text |
|
View Source
WriteLine(String, Byte)
Declaration
public void WriteLine(string text, byte lineNumber)
Parameters
Type |
Name |
Description |
System.String |
text |
|
System.Byte |
lineNumber |
|