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#ifndef SPI_VFD_h
#define SPI_VFD_h
#include <inttypes.h>
#include "Print.h"
// commands
#define VFD_CLEARDISPLAY 0x01
#define VFD_RETURNHOME 0x02
#define VFD_ENTRYMODESET 0x04
#define VFD_DISPLAYCONTROL 0x08
#define VFD_CURSORSHIFT 0x10
#define VFD_FUNCTIONSET 0x30
#define VFD_SETCGRAMADDR 0x40
#define VFD_SETDDRAMADDR 0x80
// flags for display entry mode
#define VFD_ENTRYRIGHT 0x00
#define VFD_ENTRYLEFT 0x02
#define VFD_ENTRYSHIFTINCREMENT 0x01
#define VFD_ENTRYSHIFTDECREMENT 0x00
// flags for display on/off control
#define VFD_DISPLAYON 0x04
#define VFD_DISPLAYOFF 0x00
#define VFD_CURSORON 0x02
#define VFD_CURSOROFF 0x00
#define VFD_BLINKON 0x01
#define VFD_BLINKOFF 0x00
// flags for display/cursor shift
#define VFD_DISPLAYMOVE 0x08
#define VFD_CURSORMOVE 0x00
#define VFD_MOVERIGHT 0x04
#define VFD_MOVELEFT 0x00
// flags for function set
#define VFD_2LINE 0x08
#define VFD_1LINE 0x00
#define VFD_BRIGHTNESS25 0x03
#define VFD_BRIGHTNESS50 0x02
#define VFD_BRIGHTNESS75 0x01
#define VFD_BRIGHTNESS100 0x00
#define VFD_SPICOMMAND 0xF8
#define VFD_SPIDATA 0xFA
class SPI_VFD : public Print {
public:
SPI_VFD(uint8_t data, uint8_t clock, uint8_t strobe, uint8_t brightness = VFD_BRIGHTNESS100);
void init(uint8_t data, uint8_t clock, uint8_t strobe, uint8_t brightness);
void begin(uint8_t cols, uint8_t rows, uint8_t brightness = VFD_BRIGHTNESS100);
void clear();
void home();
void setBrightness(uint8_t brightness);
uint8_t getBrightness();
void noDisplay();
void display();
void noBlink();
void blink();
void noCursor();
void cursor();
void scrollDisplayLeft();
void scrollDisplayRight();
void leftToRight();
void rightToLeft();
void autoscroll();
void noAutoscroll();
void createChar(uint8_t, uint8_t[]);
void setCursor(uint8_t, uint8_t);
#if ARDUINO >= 100
virtual size_t write(uint8_t);
#else
virtual void write(uint8_t);
#endif
void command(uint8_t);
private:
inline void send(uint8_t data);
uint8_t _clock, _data, _strobe; // SPI interface
uint8_t _displayfunction;
uint8_t _displaycontrol;
uint8_t _displaymode;
uint8_t _initialized;
uint8_t _numlines, _currline;
};
#endif
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