com.dalsemi.comm
Class LCDOutputStream

java.lang.Object
  |
  +--java.io.OutputStream
        |
        +--com.dalsemi.comm.LCDOutputStream

public class LCDOutputStream

extends OutputStream

LCDOutputStream

Description

LCDOutputStream is used for writing data to a LCD Display. This class can be used for direct writing to the LCD display on the TINI. It has been tested with LCDs that use the Samsung KS0066U and KS0070B segment drivers. Using this stream, you can create a PrintStream and do println()s to the display. Each println will show up as the next available line on the display.

Data Sheets

Samsung
KS0070B Datasheet
KS0066U Datasheet

Example Usuage

 PrintStream out = null;
 try
 {
    out = new PrintStream(lp.getOutputStream());
 }
 catch (IOException e)
 {
    System.out.println(e);
 }
 LCDPort.setAddress(0x40);  // set the address
 out.println("HELLO");      // write Hello to the LCD

 

Constructor Summary

LCDOutputStream(LCDPort lcd)
Creates a new data output stream to write data to the LCD port.

Method Summary

void	close() Closes this output stream and releases any system resources associated with this stream.
void	write(byte[] barr, int offset, int len) Displays the array on the LCD display.
void	write(int ch) Writes the given character to the LCD display.

Methods inherited from class java.io.OutputStream

flush, write

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

LCDOutputStream

public LCDOutputStream(LCDPort lcd)

Creates a new data output stream to write data to the LCD port.

Parameters:

lcd - the LCD port to use for communications

Method Detail

write

public void write(int ch)
           throws IOException

Writes the given character to the LCD display. This method blocks until the byte has actually been sent.

Overrides:

write in class OutputStream

Parameters:

ch - the byte to write to the display

Throws:

IOException - if port is not open

write

public void write(byte[] barr,
                  int offset,
                  int len)
           throws IOException

Displays the array on the LCD display. This method blocks until all bytes have been sent.

Overrides:

write in class OutputStream

Parameters:

barr - the array to send

offset - the offset into the array to begin sending

len - the number of bytes to send

Throws:

IOException - if port is not open

close

public void close()
           throws IOException

Closes this output stream and releases any system resources associated with this stream. Calls the underlying LCDPort close method.

Overrides:

close in class OutputStream

Throws:

IOException - if port is not open