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#ifndef OLED_SSD1306_H
#define OLED_SSD1306_H

/*=========================================================================
SSD1306 Displays
-----------------------------------------------------------------------
The driver is used in multiple displays (128x64, 128x32, etc.).
Select the appropriate display below to create an appropriately
sized framebuffer, etc.

SSD1306_128_64  128x64 pixel display

SSD1306_128_32  128x32 pixel display

You also need to set the LCDWIDTH and LCDHEIGHT defines to an
appropriate size

-----------------------------------------------------------------------*/
//    #define SSD1306_128_64
    #define SSD1306_128_32
/*=========================================================================*/

#if defined SSD1306_128_64
    #define SSD1306_LCDWIDTH                  128
    #define SSD1306_LCDHEIGHT                 64
#endif
#if defined SSD1306_128_32
    #define SSD1306_LCDWIDTH                  128
    #define SSD1306_LCDHEIGHT                 32
#endif

#define SSD1306_BLACK 0
#define SSD1306_WHITE 1

#define SSD1306_I2C_ADDRESS   0x3D      // 011110+SA0+RW

#define SSD1306_SETCONTRAST 0x81
#define SSD1306_DISPLAYALLON_RESUME 0xA4
#define SSD1306_DISPLAYALLON 0xA5
#define SSD1306_NORMALDISPLAY 0xA6
#define SSD1306_INVERTDISPLAY 0xA7
#define SSD1306_DISPLAYOFF 0xAE
#define SSD1306_DISPLAYON 0xAF
#define SSD1306_SETDISPLAYOFFSET 0xD3
#define SSD1306_SETCOMPINS 0xDA
#define SSD1306_SETVCOMDETECT 0xDB
#define SSD1306_SETDISPLAYCLOCKDIV 0xD5
#define SSD1306_SETPRECHARGE 0xD9
#define SSD1306_SETMULTIPLEX 0xA8
#define SSD1306_SETLOWCOLUMN 0x00
#define SSD1306_SETHIGHCOLUMN 0x10
#define SSD1306_SETSTARTLINE 0x40
#define SSD1306_MEMORYMODE 0x20
#define SSD1306_COMSCANINC 0xC0
#define SSD1306_COMSCANDEC 0xC8
#define SSD1306_SEGREMAP 0xA0
#define SSD1306_CHARGEPUMP 0x8D
#define SSD1306_EXTERNALVCC 0x1
#define SSD1306_SWITCHCAPVCC 0x2

void SSD1306_Init(void);
void SSD1306_Begin(unsigned char vcc);
void SSD1306_Command(unsigned char cmd);
void SSD1306_Data(unsigned char data);

void SSD1306_Clear_Display(void);
void SSD1306_Invert_Display(unsigned char);
void SSD1306_Display(void);

void SSD1306_Draw_Pixel(int x, int y, unsigned int color);

void SSD1306_Test_DrawChar(void);
void SSD1306_Test_DrawCircle(void);
void SSD1306_Test_DrawRect(void);
void SSD1306_Test_FillRect(void);
void SSD1306_Test_DrawTriangle(void);
void SSD1306_Test_FillTriangle(void);
void SSD1306_Test_DrawRoundRect(void);
void SSD1306_Test_FillRoundRect(void);
void SSD1306_Test_DrawLine(void);

#endif  /* OLED_SSD1306_H */