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/*=========================================================================*/
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/*=========================================================================*/
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// the 1106 has a RAM width of 128
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// the 1106 has a RAM width of 128
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#if defined SSD1306_128_64
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#if defined SSD1306_128_64
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// 0.9 inch display
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  #define SSD1306_LCDWIDTH                  128
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  #define SSD1306_LCDWIDTH                 128
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  #define SSD1306_LCDHEIGHT                 64
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  #define SSD1306_LCDHEIGHT                 64
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  #define SSD1306_RAMWIDTH                 128
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  #define SSD1306_RAMWIDTH                 128
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#elif defined SSD1306_128_32
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  #define SSD1306_LCDWIDTH                  128
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  #define SSD1306_LCDHEIGHT                 32
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  #define SSD1306_RAMWIDTH                 128
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#elif defined SSD1306_132_64
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#elif defined SSD1306_132_64
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// 1.3 inch display
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  #define SSD1306_LCDWIDTH                  128
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  #define SSD1306_LCDWIDTH                 128
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  #define SSD1306_LCDHEIGHT                 64
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  #define SSD1306_LCDHEIGHT                 64
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  #define SSD1306_RAMWIDTH                 132
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  #define SSD1306_RAMWIDTH                 132
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#elif defined SSD1306_128_32
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  #define SSD1306_LCDWIDTH                 128
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  #define SSD1306_LCDHEIGHT                 32
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  #define SSD1306_RAMWIDTH                 128
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#else
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#else
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  #error "At least one SSD1306 display must be specified in SSD1306.h"
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  #error "At least one SSD1306 display must be specified in SSD1306.h"
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#endif
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#endif
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#define SSD1306_SETCONTRAST 0x81
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#define SSD1306_SETCONTRAST 0x81
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#define SSD1306_RIGHT_HORIZONTAL_SCROLL 0x26
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#define SSD1306_RIGHT_HORIZONTAL_SCROLL 0x26
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#define SSD1306_LEFT_HORIZONTAL_SCROLL 0x27
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#define SSD1306_LEFT_HORIZONTAL_SCROLL 0x27
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#define SSD1306_VERTICAL_AND_RIGHT_HORIZONTAL_SCROLL 0x29
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#define SSD1306_VERTICAL_AND_RIGHT_HORIZONTAL_SCROLL 0x29
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#define SSD1306_VERTICAL_AND_LEFT_HORIZONTAL_SCROLL 0x2A
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#define SSD1306_VERTICAL_AND_LEFT_HORIZONTAL_SCROLL 0x2A
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extern const uint16_t WIDTH;
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extern const uint16_t WIDTH;
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extern const uint16_t HEIGHT;
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extern const uint16_t HEIGHT;
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extern uint8_t display_buffer[];
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extern uint8_t display_buffer[];
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extern uint8_t getRotation(void);
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extern uint8_t getRotation(void);
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extern int16_t width(void);
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extern int16_t width(void);
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extern int16_t height(void);
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extern int16_t height(void);
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/* stolen from AdaFruit class and converted to C */
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/* stolen from AdaFruit class and converted to C */
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void ssd1306_begin(uint8_t vccstate, uint8_t i2caddr);
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void ssd1306_begin(uint8_t vccstate, uint8_t i2caddr);
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extern  void clearDisplay(void);
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extern  void clearDisplay(void);
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extern  void invertDisplay(uint8_t i);
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extern  void invertDisplay(uint8_t i);
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extern  void startscrolldiagleft(uint8_t start, uint8_t stop);
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extern  void startscrolldiagleft(uint8_t start, uint8_t stop);
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extern  void stopscroll(void);
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extern  void stopscroll(void);
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extern void dim(uint8_t contrast);
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extern void dim(uint8_t contrast);
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 extern void drawPixel(int16_t x, int16_t y, uint16_t color);
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extern void drawPixel(int16_t x, int16_t y, uint16_t color);
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  extern void drawLine(int16_t x1, int16_t y1, int16_t x2, int16_t y2, uint8_t color);
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extern void drawLine(int16_t x1, int16_t y1, int16_t x2, int16_t y2, uint8_t color);
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  extern  void select_display(int i) ; // select physical display [i]
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extern  void select_display(int i) ; // select physical display [i]
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  extern  inline uint8_t * display_address(void) ;
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extern  inline uint8_t * display_address(void) ;