root / arduino-1.0 / libraries / LiquidCrystal / LiquidCrystal.h @ 58d82c77
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#ifndef LiquidCrystal_h
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#define LiquidCrystal_h
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#include <inttypes.h> |
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#include "Print.h" |
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// commands
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#define LCD_CLEARDISPLAY 0x01 |
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#define LCD_RETURNHOME 0x02 |
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#define LCD_ENTRYMODESET 0x04 |
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#define LCD_DISPLAYCONTROL 0x08 |
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#define LCD_CURSORSHIFT 0x10 |
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#define LCD_FUNCTIONSET 0x20 |
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#define LCD_SETCGRAMADDR 0x40 |
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#define LCD_SETDDRAMADDR 0x80 |
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// flags for display entry mode
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#define LCD_ENTRYRIGHT 0x00 |
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#define LCD_ENTRYLEFT 0x02 |
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#define LCD_ENTRYSHIFTINCREMENT 0x01 |
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#define LCD_ENTRYSHIFTDECREMENT 0x00 |
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// flags for display on/off control
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#define LCD_DISPLAYON 0x04 |
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#define LCD_DISPLAYOFF 0x00 |
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#define LCD_CURSORON 0x02 |
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#define LCD_CURSOROFF 0x00 |
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#define LCD_BLINKON 0x01 |
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#define LCD_BLINKOFF 0x00 |
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// flags for display/cursor shift
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#define LCD_DISPLAYMOVE 0x08 |
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#define LCD_CURSORMOVE 0x00 |
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#define LCD_MOVERIGHT 0x04 |
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#define LCD_MOVELEFT 0x00 |
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// flags for function set
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#define LCD_8BITMODE 0x10 |
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#define LCD_4BITMODE 0x00 |
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#define LCD_2LINE 0x08 |
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#define LCD_1LINE 0x00 |
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#define LCD_5x10DOTS 0x04 |
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#define LCD_5x8DOTS 0x00 |
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class LiquidCrystal : public Print { |
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public:
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LiquidCrystal(uint8_t rs, uint8_t enable, |
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uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, |
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uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7); |
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LiquidCrystal(uint8_t rs, uint8_t rw, uint8_t enable, |
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uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, |
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uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7); |
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LiquidCrystal(uint8_t rs, uint8_t rw, uint8_t enable, |
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uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3); |
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LiquidCrystal(uint8_t rs, uint8_t enable, |
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uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3); |
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void init(uint8_t fourbitmode, uint8_t rs, uint8_t rw, uint8_t enable,
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uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, |
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uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7); |
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void begin(uint8_t cols, uint8_t rows, uint8_t charsize = LCD_5x8DOTS);
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void clear();
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void home();
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void noDisplay();
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void display();
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void noBlink();
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void blink();
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void noCursor();
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void cursor();
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void scrollDisplayLeft();
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void scrollDisplayRight();
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void leftToRight();
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void rightToLeft();
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void autoscroll();
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void noAutoscroll();
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void createChar(uint8_t, uint8_t[]);
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void setCursor(uint8_t, uint8_t);
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virtual size_t write(uint8_t); |
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void command(uint8_t);
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using Print::write; |
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private:
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void send(uint8_t, uint8_t);
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void write4bits(uint8_t);
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void write8bits(uint8_t);
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void pulseEnable();
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uint8_t _rs_pin; // LOW: command. HIGH: character.
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uint8_t _rw_pin; // LOW: write to LCD. HIGH: read from LCD.
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uint8_t _enable_pin; // activated by a HIGH pulse.
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uint8_t _data_pins[8];
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uint8_t _displayfunction; |
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uint8_t _displaycontrol; |
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uint8_t _displaymode; |
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uint8_t _initialized; |
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uint8_t _numlines,_currline; |
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}; |
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#endif
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