DotStar.h

00001 #ifndef _DOT_STAR_H_
00002 #define _DOT_STAR_H_
00003 
00004 #include "mbed.h"
00005 
00006 class DotStar
00007 {
00008     public:
00009         
00010         DotStar(uint16_t n, uint8_t d, uint8_t c);
00011         
00012         void begin();                           // Prime pins/SPI for output
00013         void clear();                                // Set all pixel data to zero
00014         void setBrightness(uint8_t);                 // Set global brightness 0-255
00015         void setPixelColor(uint16_t n, uint32_t c);
00016         void setPixelColor(uint16_t n, uint8_t r, uint8_t g, uint8_t b);
00017         void show(void);                             // Issue color data to strip
00018         void updatePins(void);                       // Change pin assignments (HW)
00019         void updatePins(uint8_t d, uint8_t c);       // Change pin assignments (SW)
00020         void updateLength(uint16_t n);               // Change length
00021         uint32_t
00022             Color(uint8_t r, uint8_t g, uint8_t b), // R,G,B to 32-bit color
00023             getPixelColor(uint16_t n) const;        // Return 32-bit pixel color
00024         uint16_t
00025             numPixels(void);                        // Return number of pixels
00026         uint8_t
00027             getBrightness(void) const,              // Return global brightness
00028             *getPixels(void) const,                  // Return pixel data pointer
00029             sine8(uint8_t) const,
00030             gamma8(uint8_t) const;
00031         
00032         
00033     private:
00034         uint16_t
00035             numLEDs;                                // Number of pixels
00036         uint8_t
00037             dataPin,                                // If soft SPI, data pin #
00038             clockPin,                               // If soft SPI, clock pin #
00039             brightness,                             // Global brightness setting
00040            *pixels,                                 // LED RGB values (3 bytes ea.)
00041             rOffset,                                // Index of red in 3-byte pixel
00042             gOffset,                                // Index of green byte
00043             bOffset;                                // Index of blue byte
00044 };
00045 
00046 #endif