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diff --git a/samples/dashboard_4884/LCD4884.h b/samples/dashboard_4884/LCD4884.h
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+++ b/samples/dashboard_4884/LCD4884.h
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+/*
+Modified by Lauren
+version 0.3
+
+Any suggestions are welcome.
+
+Editors    : Lauren from DFRobot <Lauran.pan@gmail.com>
+             Stanley Huang <stanleyhuangyc@gmail.com>
+Date       : Feb. 11, 2012
+
+* Added LCD_putchar for basic console display
+* Have the back light under control.
+* Update the library and sketch to compatible with IDE V1.0 and earlier
+
+*/
+
+#ifndef LCD4884_h
+#define LCD4884_h
+
+#if defined(ARDUINO) && ARDUINO >= 100
+#include "Arduino.h"
+#else
+#include "WProgram.h"
+#endif
+
+#define SPI_SCK 2
+#define SPI_MOSI 3
+#define LCD_DC  4
+#define SPI_CS  5
+#define LCD_RST 6
+#define LCD_BL  7
+
+
+//display mode -- normal / highlight
+#define MENU_NORMAL	0
+#define MENU_HIGHLIGHT 1
+#define OFF 0
+#define ON 1
+#define FLAG_TITLE 1
+
+class LCD4884
+{
+public:
+	LCD4884();
+	void LCD_init(void);
+	void backlight(unsigned char dat);
+	void LCD_write_byte(unsigned char dat, unsigned char dat_type);
+	void LCD_draw_bmp_pixel(unsigned char X,unsigned char Y,unsigned char *map,unsigned char Pix_x,unsigned char Pix_y);
+	void LCD_write_string(unsigned char X,unsigned char Y,char *s, char mode = MENU_NORMAL);
+	void LCD_write_string(char *s, char mode = MENU_NORMAL);
+	void LCD_write_chinese(unsigned char X, unsigned char Y,unsigned char *c,unsigned char ch_with,unsigned char num,unsigned char line,unsigned char row);
+	void LCD_write_string_big ( unsigned char X,unsigned char Y, char *string, char mode = MENU_NORMAL);
+	void LCD_write_char_big (unsigned char X,unsigned char Y, unsigned char ch, char mode = MENU_NORMAL);
+	void LCD_write_char(unsigned char c, char mode = MENU_NORMAL);
+	void LCD_set_XY(unsigned char X, unsigned char Y);
+	void LCD_clear(void);
+	void LCD_write_title(char* title);
+	void LCD_putchar(char c);
+	unsigned char x;
+private:
+	char prev_char;
+	char char_mode;
+};
+
+extern LCD4884 lcd;   
+              
+#endif   //