136 lines
6.1 KiB
C++
136 lines
6.1 KiB
C++
/*--------------------------------------------------------------------
|
|
This file is part of the Adafruit NeoPixel library.
|
|
NeoPixel is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU Lesser General Public License as
|
|
published by the Free Software Foundation, either version 3 of
|
|
the License, or (at your option) any later version.
|
|
NeoPixel is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU Lesser General Public License for more details.
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with NeoPixel. If not, see
|
|
<http://www.gnu.org/licenses/>.
|
|
--------------------------------------------------------------------*/
|
|
|
|
#ifndef SEESAW_NEOPIXEL_H
|
|
#define SEESAW_NEOPIXEL_H
|
|
|
|
#include "Adafruit_seesaw.h"
|
|
#include <Arduino.h>
|
|
|
|
// The order of primary colors in the NeoPixel data stream can vary
|
|
// among device types, manufacturers and even different revisions of
|
|
// the same item. The third parameter to the seesaw_NeoPixel
|
|
// constructor encodes the per-pixel byte offsets of the red, green
|
|
// and blue primaries (plus white, if present) in the data stream --
|
|
// the following #defines provide an easier-to-use named version for
|
|
// each permutation. e.g. NEO_GRB indicates a NeoPixel-compatible
|
|
// device expecting three bytes per pixel, with the first byte
|
|
// containing the green value, second containing red and third
|
|
// containing blue. The in-memory representation of a chain of
|
|
// NeoPixels is the same as the data-stream order; no re-ordering of
|
|
// bytes is required when issuing data to the chain.
|
|
|
|
// Bits 5,4 of this value are the offset (0-3) from the first byte of
|
|
// a pixel to the location of the red color byte. Bits 3,2 are the
|
|
// green offset and 1,0 are the blue offset. If it is an RGBW-type
|
|
// device (supporting a white primary in addition to R,G,B), bits 7,6
|
|
// are the offset to the white byte...otherwise, bits 7,6 are set to
|
|
// the same value as 5,4 (red) to indicate an RGB (not RGBW) device.
|
|
// i.e. binary representation:
|
|
// 0bWWRRGGBB for RGBW devices
|
|
// 0bRRRRGGBB for RGB
|
|
|
|
// 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))
|
|
#define NEO_RBG ((0 << 6) | (0 << 4) | (2 << 2) | (1))
|
|
#define NEO_GRB ((1 << 6) | (1 << 4) | (0 << 2) | (2))
|
|
#define NEO_GBR ((2 << 6) | (2 << 4) | (0 << 2) | (1))
|
|
#define NEO_BRG ((1 << 6) | (1 << 4) | (2 << 2) | (0))
|
|
#define NEO_BGR ((2 << 6) | (2 << 4) | (1 << 2) | (0))
|
|
|
|
// RGBW NeoPixel permutations; all 4 offsets are distinct
|
|
// Offset: W R G B
|
|
#define NEO_WRGB ((0 << 6) | (1 << 4) | (2 << 2) | (3))
|
|
#define NEO_WRBG ((0 << 6) | (1 << 4) | (3 << 2) | (2))
|
|
#define NEO_WGRB ((0 << 6) | (2 << 4) | (1 << 2) | (3))
|
|
#define NEO_WGBR ((0 << 6) | (3 << 4) | (1 << 2) | (2))
|
|
#define NEO_WBRG ((0 << 6) | (2 << 4) | (3 << 2) | (1))
|
|
#define NEO_WBGR ((0 << 6) | (3 << 4) | (2 << 2) | (1))
|
|
|
|
#define NEO_RWGB ((1 << 6) | (0 << 4) | (2 << 2) | (3))
|
|
#define NEO_RWBG ((1 << 6) | (0 << 4) | (3 << 2) | (2))
|
|
#define NEO_RGWB ((2 << 6) | (0 << 4) | (1 << 2) | (3))
|
|
#define NEO_RGBW ((3 << 6) | (0 << 4) | (1 << 2) | (2))
|
|
#define NEO_RBWG ((2 << 6) | (0 << 4) | (3 << 2) | (1))
|
|
#define NEO_RBGW ((3 << 6) | (0 << 4) | (2 << 2) | (1))
|
|
|
|
#define NEO_GWRB ((1 << 6) | (2 << 4) | (0 << 2) | (3))
|
|
#define NEO_GWBR ((1 << 6) | (3 << 4) | (0 << 2) | (2))
|
|
#define NEO_GRWB ((2 << 6) | (1 << 4) | (0 << 2) | (3))
|
|
#define NEO_GRBW ((3 << 6) | (1 << 4) | (0 << 2) | (2))
|
|
#define NEO_GBWR ((2 << 6) | (3 << 4) | (0 << 2) | (1))
|
|
#define NEO_GBRW ((3 << 6) | (2 << 4) | (0 << 2) | (1))
|
|
|
|
#define NEO_BWRG ((1 << 6) | (2 << 4) | (3 << 2) | (0))
|
|
#define NEO_BWGR ((1 << 6) | (3 << 4) | (2 << 2) | (0))
|
|
#define NEO_BRWG ((2 << 6) | (1 << 4) | (3 << 2) | (0))
|
|
#define NEO_BRGW ((3 << 6) | (1 << 4) | (2 << 2) | (0))
|
|
#define NEO_BGWR ((2 << 6) | (3 << 4) | (1 << 2) | (0))
|
|
#define NEO_BGRW ((3 << 6) | (2 << 4) | (1 << 2) | (0))
|
|
|
|
// If 400 KHz support is enabled, the third parameter to the constructor
|
|
// requires a 16-bit value (in order to select 400 vs 800 KHz speed).
|
|
// If only 800 KHz is enabled (as is default on ATtiny), an 8-bit value
|
|
// is sufficient to encode pixel color order, saving some space.
|
|
|
|
#define NEO_KHZ800 0x0000 // 800 KHz datastream
|
|
#define NEO_KHZ400 0x0100 // 400 KHz datastream
|
|
|
|
typedef uint16_t neoPixelType;
|
|
|
|
/** Adafruit_NeoPixel-compatible 'wrapper' for LED control over seesaw
|
|
*/
|
|
class seesaw_NeoPixel : public Adafruit_seesaw {
|
|
|
|
public:
|
|
seesaw_NeoPixel(uint16_t n, uint8_t p = 6,
|
|
neoPixelType t = NEO_GRB + NEO_KHZ800, TwoWire *Wi = NULL);
|
|
seesaw_NeoPixel(TwoWire *Wi = NULL);
|
|
~seesaw_NeoPixel();
|
|
|
|
bool begin(uint8_t addr = SEESAW_ADDRESS, int8_t flow = -1);
|
|
void show(void), setPin(uint8_t p),
|
|
setPixelColor(uint16_t n, uint8_t r, uint8_t g, uint8_t b),
|
|
setPixelColor(uint16_t n, uint8_t r, uint8_t g, uint8_t b, uint8_t w),
|
|
setPixelColor(uint16_t n, uint32_t c), setBrightness(uint8_t), clear(),
|
|
updateLength(uint16_t n), updateType(neoPixelType t);
|
|
uint8_t *getPixels(void) const, getBrightness(void) const;
|
|
int8_t getPin(void) { return pin; };
|
|
uint16_t numPixels(void) const;
|
|
static uint32_t Color(uint8_t r, uint8_t g, uint8_t b),
|
|
Color(uint8_t r, uint8_t g, uint8_t b, uint8_t w);
|
|
uint32_t getPixelColor(uint16_t n) const;
|
|
inline bool canShow(void) { return (micros() - endTime) >= 300L; }
|
|
|
|
protected:
|
|
boolean is800KHz, // ...true if 800 KHz pixels
|
|
begun; // true if begin() previously called
|
|
uint16_t numLEDs, // Number of RGB LEDs in strip
|
|
numBytes; // Size of 'pixels' buffer below (3 or 4 bytes/pixel)
|
|
int8_t pin;
|
|
uint8_t brightness,
|
|
*pixels, // Holds LED color values (3 or 4 bytes each)
|
|
rOffset, // Index of red byte within each 3- or 4-byte pixel
|
|
gOffset, // Index of green byte
|
|
bOffset, // Index of blue byte
|
|
wOffset; // Index of white byte (same as rOffset if no white)
|
|
uint32_t endTime; // Latch timing reference
|
|
|
|
uint16_t type;
|
|
};
|
|
|
|
#endif // seesaw_NeoPixel_H
|