Tedd OKANO / SB1602E

Version 2.0 of TextLCD_SB1602E. The old class driver has been rewritten in more common manner of I2C devices.

Dependents:   SB1602E_Hello BME280_LCD PreHeater PreHeater ... more

Hello program for the text LCD module "SB1602E" class library

This is the version 2.0 of the TextLCD_SB1602E. /media/uploads/okano/dsc_0744.jpg

https://developer.mbed.org/media/components/pinouts/lcd2.png

The "Hello" program is available

Import programSB1602E_Hello

A Hello program for the text LCD module SB1602E class driver. The SB1602E's old class driver (TextLCD_SB1602B) has been rewritten in more common manner of I2C devices.

Last commit 05 Jan 2015 by Tedd OKANO

And the "Test" program is available also.
The test program can demonstrate full functionalities of this library.

Import programSB1602E_test

Test program for SB1602E class library

Last commit 23 Jul 2015 by Tedd OKANO

Diff: SB1602E.cpp

Revision:
2:baf578069dfc
Parent:
1:fce3e353410c
--- a/SB1602E.cpp	Mon Jan 05 05:19:43 2015 +0000
+++ b/SB1602E.cpp	Tue Apr 07 05:03:44 2015 +0000
@@ -1,8 +1,8 @@
 /** Text LCD module "SB1602E" class library
  *
- *  @author  Tedd OKANO & Masato YAMANISHI
- *  @version 2.01
- *  @date    05-Jan-2015
+ *  @author  Tedd OKANO, Masato YAMANISHI & Toyomasa Watarai
+ *  @version 2.1
+ *  @date    07-April-2015
  *
  *  SB1602E is an I2C based low voltage text LCD panel (based Sitronix ST7032 chip)
  *  The module by StrawberryLinux
@@ -21,6 +21,8 @@
  *    revision 1.3  02-May-2014   a. puticon() added (for SB1602B) by Masato YAMANISHI san
  *    revision 2.0  20-Oct-2014   a. class name is changed and published as "SB1602E"
  *                                b. re-written for better usability
+ *    revision 2.1  07-Apl-2015   a. add printf() with X and Y position
+ *                                b. add setter for number of chars in a line (e.g. 8x2 LCD support)
  */
 
 #include    <stdarg.h>
@@ -28,12 +30,12 @@
 #include    "SB1602E.h"
 
 
-SB1602E::SB1602E( PinName I2C_sda, PinName I2C_scl, char *init_massage ) : i2c_p( new I2C( I2C_sda, I2C_scl ) ), i2c( *i2c_p )
+SB1602E::SB1602E( PinName I2C_sda, PinName I2C_scl, char *init_massage ) : i2c_p( new I2C( I2C_sda, I2C_scl ) ), i2c( *i2c_p ), charsInLine( MaxCharsInALine )
 {
     init( init_massage );
 }
 
-SB1602E::SB1602E( I2C &i2c_, char *init_massage ) : i2c_p( NULL ), i2c( i2c_ )
+SB1602E::SB1602E( I2C &i2c_, char *init_massage ) : i2c_p( NULL ), i2c( i2c_ ), charsInLine( MaxCharsInALine )
 {
     init( init_massage );
 }
@@ -103,6 +105,19 @@
     puts( line, s );
 }
 
+void SB1602E::printf( char x, char y, char *format, ... )
+{
+    char    s[ 32 ];
+    va_list args;
+
+    va_start( args, format );
+    vsnprintf( s, 32, format, args );
+    va_end( args );
+
+    curs[ y ] = x;
+    puts( y, s );
+}
+
 void SB1602E::putc( char line, char c )
 {
     if ( (c == '\n') || (c == '\r') ) {
@@ -125,7 +140,7 @@
     const char    Comm_SetDDRAMAddress        = 0x80;
     const char    DDRAMAddress_Ofst[]         = { 0x00, 0x40 };
 
-    if ( (x >= MaxCharsInALine) || (y >= 2) )
+    if ( (x >= charsInLine) || (y >= 2) )
         return;
 
     lcd_command( (Comm_SetDDRAMAddress | DDRAMAddress_Ofst[ y ]) + x );
@@ -176,7 +191,7 @@
 
 void SB1602E::clear_lest_of_line( char line )
 {
-    for ( int i = curs[ line ]; i < MaxCharsInALine; i++ )
+    for ( int i = curs[ line ]; i < charsInLine; i++ )
         putcxy( ' ', i, line );
 }