SSD1327.h

00001 #ifndef SSD1327_H
00002 #define SSD1327_H
00003 
00004 #include "mbed.h"
00005 
00006 /** 96x96 pixel SSD1327 SeeedStudio 1.12" OLED display
00007 
00008 based on https://github.com/blitz/mbed-arch-pro
00009 
00010 Example:
00011 @code
00012 #include "mbed.h"
00013 #include "SSD1327.h"
00014 #include "defaultfont.h"
00015 
00016 //Pin Defines for I2C Bus
00017 #define D_SDA                  D3
00018 #define D_SCL                  D6
00019 I2C i2c(D_SDA, D_SCL);
00020 
00021 // Instantiate OLED
00022 static SSD1327 oled { i2c };
00023  
00024 
00025  int main() {
00026          oled.set_font(default_font,8,8);
00027          oled.set_text_rc(0,0);
00028          oled.puts("Hello world!");
00029          while (1) {wait(0.1);}
00030 }
00031 @endcode
00032 */
00033 
00034 class SSD1327 {
00035     I2C &i2c;
00036 
00037 
00038 public:
00039     /* Create SSD1327 object
00040     */
00041     SSD1327(I2C &i2c);
00042 
00043     const static uint8_t address   = 0x3c << 1;
00044     const static uint8_t cmd_mode  = 0x80;
00045     const static uint8_t data_mode = 0x40;
00046 
00047     const static uint8_t PIXELS         = 96;
00048     const static uint8_t PIXEL_PER_CHAR = 8; // if default font used
00049 
00050     const static uint8_t ROWS = PIXELS / PIXEL_PER_CHAR;
00051     const static uint8_t COLS = PIXELS / PIXEL_PER_CHAR;
00052     
00053     /** Set Gray Level 
00054     * @param level - new gray level  (0..0xF)
00055     */
00056     void set_gray_level(unsigned char level);
00057     
00058     /** Set text font
00059     * @param Font - font array
00060     * @param width - font width (only 8, 16, 24 or 32)
00061     * @param height - font height
00062     */
00063     void set_font(const uint8_t *Font, int width, int height);
00064     
00065     /** Set new Row and Column
00066     * @param row - new row (0..95)
00067     * @param column - new column (0..95)
00068     */
00069     void set_rc(unsigned char row, unsigned char column);
00070     
00071     /** Set new text Row and Column
00072     * Used after set_font
00073     * @param row - new row (0..96/font_height-1)
00074     * @param column - new column (0..96/font_width-1)
00075     */
00076     void set_text_rc(unsigned char row, unsigned char column);
00077     
00078     /** Put char into display using current font
00079     * @param C - printed char
00080     */
00081     void putc(unsigned char C);
00082 
00083     /** Put string into display using current font
00084     * @param str - printed string
00085     */
00086     void puts(const char *str);
00087     
00088     /** Clear display
00089     */
00090     void clear();
00091     
00092     // Service low-level functions
00093 
00094     bool send(char mode, const char data[], size_t len);
00095 
00096     void tribyte_cmd(uint8_t a, uint8_t b, uint8_t c);
00097     
00098     void set_column_address(uint8_t start, uint8_t end);
00099 
00100     void set_row_address(uint8_t start, uint8_t end);
00101     
00102     //bool sendf(char mode, char data[], size_t len);
00103     
00104     bool sendx(char mode, char data[], size_t len);
00105     
00106     
00107 };
00108 
00109 #endif // SSD1327_H
00110 
00111 // EOF