106 lines
2.7 KiB
C++
106 lines
2.7 KiB
C++
#ifndef LiquidCrystal_h
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#define LiquidCrystal_h
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//#include <inttypes.h>
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#include <wirish.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 rs, uint8 enable,
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uint8 d0, uint8 d1, uint8 d2, uint8 d3,
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uint8 d4, uint8 d5, uint8 d6, uint8 d7);
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LiquidCrystal(uint8 rs, uint8 rw, uint8 enable,
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uint8 d0, uint8 d1, uint8 d2, uint8 d3,
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uint8 d4, uint8 d5, uint8 d6, uint8 d7);
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LiquidCrystal(uint8 rs, uint8 rw, uint8 enable,
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uint8 d0, uint8 d1, uint8 d2, uint8 d3);
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LiquidCrystal(uint8 rs, uint8 enable,
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uint8 d0, uint8 d1, uint8 d2, uint8 d3);
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void init(uint8 fourbitmode, uint8 rs, uint8 rw, uint8 enable,
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uint8 d0, uint8 d1, uint8 d2, uint8 d3,
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uint8 d4, uint8 d5, uint8 d6, uint8 d7);
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void begin(uint8 cols, uint8 rows, uint8 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, uint8[]);
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void setCursor(uint8, uint8);
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virtual size_t write(uint8);
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void command(uint8);
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private:
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void send(uint8, uint8);
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void write4bits(uint8);
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void write8bits(uint8);
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void pulseEnable();
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uint8 displaymode;
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uint8 _rs_pin; // LOW: command. HIGH: character.
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uint8 _rw_pin; // LOW: write to LCD. HIGH: read from LCD.
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uint8 _enable_pin; // activated by a HIGH pulse.
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uint8 _data_pins[8];
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uint8 _displayfunction;
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uint8 _displaycontrol;
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uint8 _displaymode;
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uint8 _initialized;
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uint8 _numlines,_currline;
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};
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#endif
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