#ifndef NEOPIXEL_H #define NEOPIXEL_H #include // RGB NeoPixel permutations; white and red offsets are always same // Offset: W R G B #define NEO_RGB ((0 << 6) | (0 << 4) | (1 << 2) | (2)) ///< Transmit as R,G,B #define NEO_RBG ((0 << 6) | (0 << 4) | (2 << 2) | (1)) ///< Transmit as R,B,G #define NEO_GRB ((1 << 6) | (1 << 4) | (0 << 2) | (2)) ///< Transmit as G,R,B #define NEO_GBR ((2 << 6) | (2 << 4) | (0 << 2) | (1)) ///< Transmit as G,B,R #define NEO_BRG ((1 << 6) | (1 << 4) | (2 << 2) | (0)) ///< Transmit as B,R,G #define NEO_BGR ((2 << 6) | (2 << 4) | (1 << 2) | (0)) ///< Transmit as B,G,R // RGBW NeoPixel permutations; all 4 offsets are distinct // Offset: W R G B #define NEO_WRGB ((0 << 6) | (1 << 4) | (2 << 2) | (3)) ///< Transmit as W,R,G,B #define NEO_WRBG ((0 << 6) | (1 << 4) | (3 << 2) | (2)) ///< Transmit as W,R,B,G #define NEO_WGRB ((0 << 6) | (2 << 4) | (1 << 2) | (3)) ///< Transmit as W,G,R,B #define NEO_WGBR ((0 << 6) | (3 << 4) | (1 << 2) | (2)) ///< Transmit as W,G,B,R #define NEO_WBRG ((0 << 6) | (2 << 4) | (3 << 2) | (1)) ///< Transmit as W,B,R,G #define NEO_WBGR ((0 << 6) | (3 << 4) | (2 << 2) | (1)) ///< Transmit as W,B,G,R #define NEO_RWGB ((1 << 6) | (0 << 4) | (2 << 2) | (3)) ///< Transmit as R,W,G,B #define NEO_RWBG ((1 << 6) | (0 << 4) | (3 << 2) | (2)) ///< Transmit as R,W,B,G #define NEO_RGWB ((2 << 6) | (0 << 4) | (1 << 2) | (3)) ///< Transmit as R,G,W,B #define NEO_RGBW ((3 << 6) | (0 << 4) | (1 << 2) | (2)) ///< Transmit as R,G,B,W #define NEO_RBWG ((2 << 6) | (0 << 4) | (3 << 2) | (1)) ///< Transmit as R,B,W,G #define NEO_RBGW ((3 << 6) | (0 << 4) | (2 << 2) | (1)) ///< Transmit as R,B,G,W #define NEO_GWRB ((1 << 6) | (2 << 4) | (0 << 2) | (3)) ///< Transmit as G,W,R,B #define NEO_GWBR ((1 << 6) | (3 << 4) | (0 << 2) | (2)) ///< Transmit as G,W,B,R #define NEO_GRWB ((2 << 6) | (1 << 4) | (0 << 2) | (3)) ///< Transmit as G,R,W,B #define NEO_GRBW ((3 << 6) | (1 << 4) | (0 << 2) | (2)) ///< Transmit as G,R,B,W #define NEO_GBWR ((2 << 6) | (3 << 4) | (0 << 2) | (1)) ///< Transmit as G,B,W,R #define NEO_GBRW ((3 << 6) | (2 << 4) | (0 << 2) | (1)) ///< Transmit as G,B,R,W #define NEO_BWRG ((1 << 6) | (2 << 4) | (3 << 2) | (0)) ///< Transmit as B,W,R,G #define NEO_BWGR ((1 << 6) | (3 << 4) | (2 << 2) | (0)) ///< Transmit as B,W,G,R #define NEO_BRWG ((2 << 6) | (1 << 4) | (3 << 2) | (0)) ///< Transmit as B,R,W,G #define NEO_BRGW ((3 << 6) | (1 << 4) | (2 << 2) | (0)) ///< Transmit as B,R,G,W #define NEO_BGWR ((2 << 6) | (3 << 4) | (1 << 2) | (0)) ///< Transmit as B,G,W,R #define NEO_BGRW ((3 << 6) | (2 << 4) | (1 << 2) | (0)) ///< Transmit as B,G,R,W #define NEO_KHZ400 0x0100 ///< 400 KHz data transmission #define NEO_KHZ800 0x0000 ///< 800 KHz data transmission typedef uint16_t neoPixelType; ///< 3rd arg to NeoPixel constructor static const uint8_t PROGMEM _NeoPixelSineTable[256] = { 128, 131, 134, 137, 140, 143, 146, 149, 152, 155, 158, 162, 165, 167, 170, 173, 176, 179, 182, 185, 188, 190, 193, 196, 198, 201, 203, 206, 208, 211, 213, 215, 218, 220, 222, 224, 226, 228, 230, 232, 234, 235, 237, 238, 240, 241, 243, 244, 245, 246, 248, 249, 250, 250, 251, 252, 253, 253, 254, 254, 254, 255, 255, 255, 255, 255, 255, 255, 254, 254, 254, 253, 253, 252, 251, 250, 250, 249, 248, 246, 245, 244, 243, 241, 240, 238, 237, 235, 234, 232, 230, 228, 226, 224, 222, 220, 218, 215, 213, 211, 208, 206, 203, 201, 198, 196, 193, 190, 188, 185, 182, 179, 176, 173, 170, 167, 165, 162, 158, 155, 152, 149, 146, 143, 140, 137, 134, 131, 128, 124, 121, 118, 115, 112, 109, 106, 103, 100, 97, 93, 90, 88, 85, 82, 79, 76, 73, 70, 67, 65, 62, 59, 57, 54, 52, 49, 47, 44, 42, 40, 37, 35, 33, 31, 29, 27, 25, 23, 21, 20, 18, 17, 15, 14, 12, 11, 10, 9, 7, 6, 5, 5, 4, 3, 2, 2, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 2, 2, 3, 4, 5, 5, 6, 7, 9, 10, 11, 12, 14, 15, 17, 18, 20, 21, 23, 25, 27, 29, 31, 33, 35, 37, 40, 42, 44, 47, 49, 52, 54, 57, 59, 62, 65, 67, 70, 73, 76, 79, 82, 85, 88, 90, 93, 97, 100, 103, 106, 109, 112, 115, 118, 121, 124}; static const uint8_t PROGMEM _NeoPixelGammaTable[256] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 5, 6, 6, 6, 6, 7, 7, 7, 8, 8, 8, 9, 9, 9, 10, 10, 10, 11, 11, 11, 12, 12, 13, 13, 13, 14, 14, 15, 15, 16, 16, 17, 17, 18, 18, 19, 19, 20, 20, 21, 21, 22, 22, 23, 24, 24, 25, 25, 26, 27, 27, 28, 29, 29, 30, 31, 31, 32, 33, 34, 34, 35, 36, 37, 38, 38, 39, 40, 41, 42, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 68, 69, 70, 71, 72, 73, 75, 76, 77, 78, 80, 81, 82, 84, 85, 86, 88, 89, 90, 92, 93, 94, 96, 97, 99, 100, 102, 103, 105, 106, 108, 109, 111, 112, 114, 115, 117, 119, 120, 122, 124, 125, 127, 129, 130, 132, 134, 136, 137, 139, 141, 143, 145, 146, 148, 150, 152, 154, 156, 158, 160, 162, 164, 166, 168, 170, 172, 174, 176, 178, 180, 182, 184, 186, 188, 191, 193, 195, 197, 199, 202, 204, 206, 209, 211, 213, 215, 218, 220, 223, 225, 227, 230, 232, 235, 237, 240, 242, 245, 247, 250, 252, 255}; class NeoPixel { public: // Constructor: number of LEDs, pin number, LED type NeoPixel(uint16_t n, int16_t pin = 6, neoPixelType type = NEO_GRB + NEO_KHZ800); NeoPixel(void); ~NeoPixel(); void begin(void); void show(void); void setPin(int16_t p); void setPixelColor(uint16_t n, uint8_t r, uint8_t g, uint8_t b); void setPixelColor(uint16_t n, uint8_t r, uint8_t g, uint8_t b, uint8_t w); void setPixelColor(uint16_t n, uint32_t c); void fill(uint32_t c = 0, uint16_t first = 0, uint16_t count = 0); void setBrightness(uint8_t); void clear(void); void updateLength(uint16_t n); void updateType(neoPixelType t); bool canShow(void) { uint32_t now = micros(); if (endTime > now) { endTime = now; } return (now - endTime) >= 300L; } uint8_t *getPixels(void) const { return pixels; }; uint8_t getBrightness(void) const; int16_t getPin(void) const { return pin; }; uint16_t numPixels(void) const { return numLEDs; } uint32_t getPixelColor(uint16_t n) const; static uint8_t sine8(uint8_t x) { return pgm_read_byte(&_NeoPixelSineTable[x]); // 0-255 in, 0-255 out } static uint8_t gamma8(uint8_t x) { return pgm_read_byte(&_NeoPixelGammaTable[x]); // 0-255 in, 0-255 out } static uint32_t Color(uint8_t r, uint8_t g, uint8_t b) { return ((uint32_t)r << 16) | ((uint32_t)g << 8) | b; } static uint32_t Color(uint8_t r, uint8_t g, uint8_t b, uint8_t w) { return ((uint32_t)w << 24) | ((uint32_t)r << 16) | ((uint32_t)g << 8) | b; } static uint32_t ColorHSV(uint16_t hue, uint8_t sat = 255, uint8_t val = 255); static uint32_t gamma32(uint32_t x); void rainbow(uint16_t first_hue = 0, int8_t reps = 1, uint8_t saturation = 255, uint8_t brightness = 255, bool gammify = true); static neoPixelType str2order(const char *v); protected: bool is800KHz; ///< true if 800 KHz pixels bool begun; ///< true if begin() previously called uint16_t numLEDs; ///< Number of RGB LEDs in strip uint16_t numBytes; ///< Size of 'pixels' buffer below int16_t pin; ///< Output pin number (-1 if not yet set) uint8_t brightness; ///< Strip brightness 0-255 (stored as +1) uint8_t *pixels; ///< Holds LED color values (3 or 4 bytes each) uint8_t rOffset; ///< Red index within each 3- or 4-byte pixel uint8_t gOffset; ///< Index of green byte uint8_t bOffset; ///< Index of blue byte uint8_t wOffset; ///< Index of white (==rOffset if no white) uint32_t endTime; ///< Latch timing reference GPIO_TypeDef *gpioPort; ///< Output GPIO PORT uint32_t gpioPin; ///< Output GPIO PIN }; #endif // NEOPIXEL_H