1 files changed, 119 insertions, 0 deletions
diff --git a/nanologger/SSD1306.h b/nanologger/SSD1306.h
new file mode 100644
index 0000000..aaa3534
--- /dev/null
+++ b/nanologger/SSD1306.h
@@ -0,0 +1,119 @@
+#if ARDUINO >= 100
+ #include "Arduino.h"
+#else
+ #include "WProgram.h"
+#endif
+
+#define BLACK 0
+#define WHITE 1
+
+#define SSD1306_I2C_ADDRESS   0x3C	// 011110+SA0+RW - 0x3C or 0x3D
+// Address for 128x32 is 0x3C
+// Address for 128x32 is 0x3D (default) or 0x3C (if SA0 is grounded)
+
+/*=========================================================================
+    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 && defined SSD1306_128_32
+  #error "Only one SSD1306 display can be specified at once in SSD1306.h"
+#endif
+#if !defined SSD1306_128_64 && !defined SSD1306_128_32
+  #error "At least one SSD1306 display must be specified in SSD1306.h"
+#endif
+
+#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_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
+
+// Scrolling #defines
+#define SSD1306_ACTIVATE_SCROLL 0x2F
+#define SSD1306_DEACTIVATE_SCROLL 0x2E
+#define SSD1306_SET_VERTICAL_SCROLL_AREA 0xA3
+#define SSD1306_RIGHT_HORIZONTAL_SCROLL 0x26
+#define SSD1306_LEFT_HORIZONTAL_SCROLL 0x27
+#define SSD1306_VERTICAL_AND_RIGHT_HORIZONTAL_SCROLL 0x29
+#define SSD1306_VERTICAL_AND_LEFT_HORIZONTAL_SCROLL 0x2A
+
+class SSD1306 {
+public:
+  SSD1306(int8_t SCLK, int8_t DC, int8_t RST, int8_t CS);
+  SSD1306(int8_t RST = 4);
+
+  void begin(uint8_t switchvcc = SSD1306_SWITCHCAPVCC, uint8_t i2caddr = SSD1306_I2C_ADDRESS);
+  void ssd1306_command(uint8_t c);
+  void ssd1306_data(uint8_t c);
+
+  void invertDisplay(uint8_t i);
+  void draw8x8(byte* buffer, byte x, byte y);
+
+  void startscrollright(uint8_t start, uint8_t stop);
+  void startscrollleft(uint8_t start, uint8_t stop);
+
+  void startscrolldiagright(uint8_t start, uint8_t stop);
+  void startscrolldiagleft(uint8_t start, uint8_t stop);
+  void stopscroll(void);
+
+  void fill(unsigned char dat);
+  void clearBuffer();
+
+protected:
+  uint8_t _i2caddr;
+private:
+  int8_t sclk, dc, rst, cs;
+};