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void SSD1306_Init(uint8_t i2caddr);
void SSD1306_DrawPixel(uint8_t x, uint8_t y, bool color);
void SSD1306_StartScrollRight(uint8_t start, uint8_t end);
void SSD1306_StartScrollLeft(uint8_t start, uint8_t end);
void SSD1306_StopScroll(void);
void SSD1306_SetContrast(uint8_t contrast);
void SSD1306_Display(void);
void SSD1306_ClearDisplay(void);
void SSD1306_DrawLine(uint8_t x0, uint8_t y0, uint8_t x1, uint8_t y1, bool color);
void SSD1306_DrawFastHLine(uint8_t x, uint8_t y, uint8_t width, bool color);
void SSD1306_DrawFastVLine(uint8_t x, uint8_t y, uint8_t height, bool color);
void SSD1306_FillRect(uint8_t x, uint8_t y, uint8_t width, uint8_t height, bool color);
void SSD1306_FillScreen(bool color);
void SSD1306_DrawCircle(uint8_t x, uint8_t y, uint8_t radius);
void SSD1306_DrawCircleHelper(uint8_t x, uint8_t y, uint8_t radius, uint8_t cornername);
void SSD1306_FillCircle(uint8_t x, uint8_t y, uint8_t radius, bool color);
void SSD1306_FillCircleHelper(uint8_t x, uint8_t y, uint8_t radius, uint8_t cornername, int8_t delta, bool color);
void SSD1306_DrawRect(uint8_t x, uint8_t y, uint8_t width, uint8_t height);
void SSD1306_DrawRoundRect(uint8_t x, uint8_t y, uint8_t width, uint8_t height, uint8_t radius);
void SSD1306_FillRoundRect(uint8_t x, uint8_t y, uint8_t width, uint8_t height, uint8_t radius, bool color);
void SSD1306_DrawTriangle(uint8_t x0, uint8_t y0, uint8_t x1, uint8_t y1, uint8_t x2, uint8_t y2);
void SSD1306_FillTriangle(uint8_t x0, uint8_t y0, uint8_t x1, uint8_t y1, uint8_t x2, uint8_t y2, bool color);
void SSD1306_InvertDisplay(bool invert);
void SSD1306_SetTextWrap(bool wrap);
void SSD1306_DrawChar(uint8_t x, uint8_t y, char ch, uint8_t size);
void SSD1306_DrawText(uint8_t x, uint8_t y, char* text, uint8_t size);
void SSD1306_TextSize(uint8_t size);
void SSD1306_GotoXY(uint8_t x, uint8_t y);
void SSD1306_Print(uint8_t ch);
void SSD1306_PutCustomC(uint8_t* ch);
void SSD1306_SetTextWrap(bool wrap);
void SSD1306_InvertDisplay(uint8_t i);
void SSD1306_DrawBitmap(uint8_t x, uint8_t y, uint8_t width, uint8_t height, uint8_t* bitmap);