/*H********************************************************************
* YWROBOT
**********************************************************************/
#ifndef LiquidCrystal_I2C_h
#define LiquidCrystal_I2C_h
#include 
#include "Print.h" 
#include 


//**************** DEFINES ******************************
// commands
#define LCD_CLEARDISPLAY 0x01
#define LCD_RETURNHOME 0x02
#define LCD_ENTRYMODESET 0x04
#define LCD_DISPLAYCONTROL 0x08
#define LCD_CURSORSHIFT 0x10
#define LCD_FUNCTIONSET 0x20
#define LCD_SETCGRAMADDR 0x40
#define LCD_SETDDRAMADDR 0x80
// flags for display entry mode
#define LCD_ENTRYRIGHT 0x00
#define LCD_ENTRYLEFT 0x02
#define LCD_ENTRYSHIFTINCREMENT 0x01
#define LCD_ENTRYSHIFTDECREMENT 0x00
// flags for display on/off control
#define LCD_DISPLAYON 0x04
#define LCD_DISPLAYOFF 0x00
#define LCD_CURSORON 0x02
#define LCD_CURSOROFF 0x00
#define LCD_BLINKON 0x01
#define LCD_BLINKOFF 0x00
// flags for display/cursor shift
#define LCD_DISPLAYMOVE 0x08
#define LCD_CURSORMOVE 0x00
#define LCD_MOVERIGHT 0x04
#define LCD_MOVELEFT 0x00
// flags for function set
#define LCD_8BITMODE 0x10
#define LCD_4BITMODE 0x00
#define LCD_2LINE 0x08
#define LCD_1LINE 0x00
#define LCD_5x10DOTS 0x04
#define LCD_5x8DOTS 0x00
// flags for backlight control
#define LCD_BACKLIGHT 0x08
#define LCD_NOBACKLIGHT 0x00
#define En B00000100  // Enable bit
#define Rw B00000010  // Read/Write bit
#define Rs B00000001  // Register select bit

//**************** VARIABLES ******************************
class LiquidCrystal_I2C : public Print 
{
	public:
	LiquidCrystal_I2C(uint8_t lcd_Addr,uint8_t lcd_cols,uint8_t lcd_rows);
	void begin(uint8_t cols, uint8_t rows, uint8_t charsize = LCD_5x8DOTS );
	void clear();
	void home();
	void noDisplay();
	void display();
	void noBlink();
	void blink();
	void noCursor();
	void cursor();
	void scrollDisplayLeft();
	void scrollDisplayRight();
	void printLeft();
	void printRight();
	void leftToRight();
	void rightToLeft();
	void shiftIncrement();
	void shiftDecrement();
	void noBacklight();
	void backlight();
	void autoscroll();
	void noAutoscroll(); 
	void createChar(uint8_t, uint8_t[]);
	void createChar(uint8_t location, const char *charmap);
	// Example: 	const char bell[8] PROGMEM = {B00100,B01110,B01110,B01110,B11111,B00000,B00100,B00000};
	void setCursor(uint8_t, uint8_t); 
	#if defined(ARDUINO) && ARDUINO >= 100
	virtual size_t write(uint8_t);
	#else
	virtual void write(uint8_t);
	#endif
	void command(uint8_t);
	void init();
	void oled_init();
	////compatibility API function aliases
	void blink_on();						// alias for blink()
	void blink_off();       					// alias for noBlink()
	void cursor_on();      	 					// alias for cursor()
	void cursor_off();      					// alias for noCursor()
	void setBacklight(uint8_t new_val);				// alias for backlight() and nobacklight()
	void load_custom_character(uint8_t char_num, uint8_t *rows);	// alias for createChar()
	void printstr(const char[]);
	////Unsupported API functions (not implemented in this library)
	uint8_t status();
	void setContrast(uint8_t new_val);
	uint8_t keypad();
	void setDelay(int,int);
	void on();
	void off();
	uint8_t init_bargraph(uint8_t graphtype);
	void draw_horizontal_graph(uint8_t row, uint8_t column, uint8_t len,  uint8_t pixel_col_end);
	void draw_vertical_graph(uint8_t row, uint8_t column, uint8_t len,  uint8_t pixel_col_end);
	private:
	void init_priv();
	void send(uint8_t, uint8_t);
	void write4bits(uint8_t);
	void expanderWrite(uint8_t);
	void pulseEnable(uint8_t);
	uint8_t _Addr;
	uint8_t _displayfunction;
	uint8_t _displaycontrol;
	uint8_t _displaymode;
	uint8_t _numlines;
	bool _oled = false;
	uint8_t _cols;
	uint8_t _rows;
	uint8_t _backlightval;
};
#endif