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OTTO_WS2812B.hpp
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#pragma once
/*--------------------------------------------------------------------
The WS2812B library 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.
It 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.
See <http://www.gnu.org/licenses/>.
--------------------------------------------------------------------*/
#include <Arduino.h>
/*
* old version used 3 separate tables, one per byte of the 24 bit encoded data
*
static const uint8_t byte0Lookup[256]={0x92,0x92,0x92,0x92,0x92,0x92,0x92,0x92,0x92,0x92,0x92,0x92,0x92,0x92,0x92,0x92,0x92,0x92,0x92,0x92,0x92,0x92,0x92,0x92,0x92,0x92,0x92,0x92,0x92,0x92,0x92,0x92,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x9A,0x9A,0x9A,0x9A,0x9A,0x9A,0x9A,0x9A,0x9A,0x9A,0x9A,0x9A,0x9A,0x9A,0x9A,0x9A,0x9A,0x9A,0x9A,0x9A,0x9A,0x9A,0x9A,0x9A,0x9A,0x9A,0x9A,0x9A,0x9A,0x9A,0x9A,0x9A,0x9B,0x9B,0x9B,0x9B,0x9B,0x9B,0x9B,0x9B,0x9B,0x9B,0x9B,0x9B,0x9B,0x9B,0x9B,0x9B,0x9B,0x9B,0x9B,0x9B,0x9B,0x9B,0x9B,0x9B,0x9B,0x9B,0x9B,0x9B,0x9B,0x9B,0x9B,0x9B,0xD2,0xD2,0xD2,0xD2,0xD2,0xD2,0xD2,0xD2,0xD2,0xD2,0xD2,0xD2,0xD2,0xD2,0xD2,0xD2,0xD2,0xD2,0xD2,0xD2,0xD2,0xD2,0xD2,0xD2,0xD2,0xD2,0xD2,0xD2,0xD2,0xD2,0xD2,0xD2,0xD3,0xD3,0xD3,0xD3,0xD3,0xD3,0xD3,0xD3,0xD3,0xD3,0xD3,0xD3,0xD3,0xD3,0xD3,0xD3,0xD3,0xD3,0xD3,0xD3,0xD3,0xD3,0xD3,0xD3,0xD3,0xD3,0xD3,0xD3,0xD3,0xD3,0xD3,0xD3,0xDA,0xDA,0xDA,0xDA,0xDA,0xDA,0xDA,0xDA,0xDA,0xDA,0xDA,0xDA,0xDA,0xDA,0xDA,0xDA,0xDA,0xDA,0xDA,0xDA,0xDA,0xDA,0xDA,0xDA,0xDA,0xDA,0xDA,0xDA,0xDA,0xDA,0xDA,0xDA,0xDB,0xDB,0xDB,0xDB,0xDB,0xDB,0xDB,0xDB,0xDB,0xDB,0xDB,0xDB,0xDB,0xDB,0xDB,0xDB,0xDB,0xDB,0xDB,0xDB,0xDB,0xDB,0xDB,0xDB,0xDB,0xDB,0xDB,0xDB,0xDB,0xDB,0xDB,0xDB};
static const uint8_t byte1Lookup[256]={0x49,0x49,0x49,0x49,0x49,0x49,0x49,0x49,0x4D,0x4D,0x4D,0x4D,0x4D,0x4D,0x4D,0x4D,0x69,0x69,0x69,0x69,0x69,0x69,0x69,0x69,0x6D,0x6D,0x6D,0x6D,0x6D,0x6D,0x6D,0x6D,0x49,0x49,0x49,0x49,0x49,0x49,0x49,0x49,0x4D,0x4D,0x4D,0x4D,0x4D,0x4D,0x4D,0x4D,0x69,0x69,0x69,0x69,0x69,0x69,0x69,0x69,0x6D,0x6D,0x6D,0x6D,0x6D,0x6D,0x6D,0x6D,0x49,0x49,0x49,0x49,0x49,0x49,0x49,0x49,0x4D,0x4D,0x4D,0x4D,0x4D,0x4D,0x4D,0x4D,0x69,0x69,0x69,0x69,0x69,0x69,0x69,0x69,0x6D,0x6D,0x6D,0x6D,0x6D,0x6D,0x6D,0x6D,0x49,0x49,0x49,0x49,0x49,0x49,0x49,0x49,0x4D,0x4D,0x4D,0x4D,0x4D,0x4D,0x4D,0x4D,0x69,0x69,0x69,0x69,0x69,0x69,0x69,0x69,0x6D,0x6D,0x6D,0x6D,0x6D,0x6D,0x6D,0x6D,0x49,0x49,0x49,0x49,0x49,0x49,0x49,0x49,0x4D,0x4D,0x4D,0x4D,0x4D,0x4D,0x4D,0x4D,0x69,0x69,0x69,0x69,0x69,0x69,0x69,0x69,0x6D,0x6D,0x6D,0x6D,0x6D,0x6D,0x6D,0x6D,0x49,0x49,0x49,0x49,0x49,0x49,0x49,0x49,0x4D,0x4D,0x4D,0x4D,0x4D,0x4D,0x4D,0x4D,0x69,0x69,0x69,0x69,0x69,0x69,0x69,0x69,0x6D,0x6D,0x6D,0x6D,0x6D,0x6D,0x6D,0x6D,0x49,0x49,0x49,0x49,0x49,0x49,0x49,0x49,0x4D,0x4D,0x4D,0x4D,0x4D,0x4D,0x4D,0x4D,0x69,0x69,0x69,0x69,0x69,0x69,0x69,0x69,0x6D,0x6D,0x6D,0x6D,0x6D,0x6D,0x6D,0x6D,0x49,0x49,0x49,0x49,0x49,0x49,0x49,0x49,0x4D,0x4D,0x4D,0x4D,0x4D,0x4D,0x4D,0x4D,0x69,0x69,0x69,0x69,0x69,0x69,0x69,0x69,0x6D,0x6D,0x6D,0x6D,0x6D,0x6D,0x6D,0x6D};
static const uint8_t byte2Lookup[256]={0x24,0x26,0x34,0x36,0xA4,0xA6,0xB4,0xB6,0x24,0x26,0x34,0x36,0xA4,0xA6,0xB4,0xB6,0x24,0x26,0x34,0x36,0xA4,0xA6,0xB4,0xB6,0x24,0x26,0x34,0x36,0xA4,0xA6,0xB4,0xB6,0x24,0x26,0x34,0x36,0xA4,0xA6,0xB4,0xB6,0x24,0x26,0x34,0x36,0xA4,0xA6,0xB4,0xB6,0x24,0x26,0x34,0x36,0xA4,0xA6,0xB4,0xB6,0x24,0x26,0x34,0x36,0xA4,0xA6,0xB4,0xB6,0x24,0x26,0x34,0x36,0xA4,0xA6,0xB4,0xB6,0x24,0x26,0x34,0x36,0xA4,0xA6,0xB4,0xB6,0x24,0x26,0x34,0x36,0xA4,0xA6,0xB4,0xB6,0x24,0x26,0x34,0x36,0xA4,0xA6,0xB4,0xB6,0x24,0x26,0x34,0x36,0xA4,0xA6,0xB4,0xB6,0x24,0x26,0x34,0x36,0xA4,0xA6,0xB4,0xB6,0x24,0x26,0x34,0x36,0xA4,0xA6,0xB4,0xB6,0x24,0x26,0x34,0x36,0xA4,0xA6,0xB4,0xB6,0x24,0x26,0x34,0x36,0xA4,0xA6,0xB4,0xB6,0x24,0x26,0x34,0x36,0xA4,0xA6,0xB4,0xB6,0x24,0x26,0x34,0x36,0xA4,0xA6,0xB4,0xB6,0x24,0x26,0x34,0x36,0xA4,0xA6,0xB4,0xB6,0x24,0x26,0x34,0x36,0xA4,0xA6,0xB4,0xB6,0x24,0x26,0x34,0x36,0xA4,0xA6,0xB4,0xB6,0x24,0x26,0x34,0x36,0xA4,0xA6,0xB4,0xB6,0x24,0x26,0x34,0x36,0xA4,0xA6,0xB4,0xB6,0x24,0x26,0x34,0x36,0xA4,0xA6,0xB4,0xB6,0x24,0x26,0x34,0x36,0xA4,0xA6,0xB4,0xB6,0x24,0x26,0x34,0x36,0xA4,0xA6,0xB4,0xB6,0x24,0x26,0x34,0x36,0xA4,0xA6,0xB4,0xB6,0x24,0x26,0x34,0x36,0xA4,0xA6,0xB4,0xB6,0x24,0x26,0x34,0x36,0xA4,0xA6,0xB4,0xB6,0x24,0x26,0x34,0x36,0xA4,0xA6,0xB4,0xB6,0x24,0x26,0x34,0x36,0xA4,0xA6,0xB4,0xB6};
*/
// New version uses one large LUT as its faster index into sequential bytes for the GRB pattern
static uint8_t encoderLookup[256*3]={ 0x92,0x49,0x24,0x92,0x49,0x26,0x92,0x49,0x34,0x92,0x49,0x36,0x92,0x49,0xA4,0x92,0x49,0xA6,0x92,0x49,0xB4,0x92,0x49,0xB6,0x92,0x4D,0x24,0x92,0x4D,0x26,0x92,0x4D,0x34,0x92,0x4D,0x36,0x92,0x4D,0xA4,0x92,0x4D,0xA6,0x92,0x4D,0xB4,0x92,0x4D,0xB6,0x92,0x69,0x24,0x92,0x69,0x26,0x92,0x69,0x34,0x92,0x69,0x36,0x92,0x69,0xA4,0x92,0x69,0xA6,0x92,0x69,0xB4,0x92,0x69,0xB6,0x92,0x6D,0x24,0x92,0x6D,0x26,0x92,0x6D,0x34,0x92,0x6D,0x36,0x92,0x6D,0xA4,0x92,0x6D,0xA6,0x92,0x6D,0xB4,0x92,0x6D,0xB6,0x93,0x49,0x24,0x93,0x49,0x26,0x93,0x49,0x34,0x93,0x49,0x36,0x93,0x49,0xA4,0x93,0x49,0xA6,0x93,0x49,0xB4,0x93,0x49,0xB6,0x93,0x4D,0x24,0x93,0x4D,0x26,0x93,0x4D,0x34,0x93,0x4D,0x36,0x93,0x4D,0xA4,0x93,0x4D,0xA6,0x93,0x4D,0xB4,0x93,0x4D,0xB6,0x93,0x69,0x24,0x93,0x69,0x26,0x93,0x69,0x34,0x93,0x69,0x36,0x93,0x69,0xA4,0x93,0x69,0xA6,0x93,0x69,0xB4,0x93,0x69,0xB6,0x93,0x6D,0x24,0x93,0x6D,0x26,0x93,0x6D,0x34,0x93,0x6D,0x36,0x93,0x6D,0xA4,0x93,0x6D,0xA6,0x93,0x6D,0xB4,0x93,0x6D,0xB6,0x9A,0x49,0x24,0x9A,0x49,0x26,0x9A,0x49,0x34,0x9A,0x49,0x36,0x9A,0x49,0xA4,0x9A,0x49,0xA6,0x9A,0x49,0xB4,0x9A,0x49,0xB6,0x9A,0x4D,0x24,0x9A,0x4D,0x26,0x9A,0x4D,0x34,0x9A,0x4D,0x36,0x9A,0x4D,0xA4,0x9A,0x4D,0xA6,0x9A,0x4D,0xB4,0x9A,0x4D,0xB6,0x9A,0x69,0x24,0x9A,0x69,0x26,0x9A,0x69,0x34,0x9A,0x69,0x36,0x9A,0x69,0xA4,0x9A,0x69,\
0xA6,0x9A,0x69,0xB4,0x9A,0x69,0xB6,0x9A,0x6D,0x24,0x9A,0x6D,0x26,0x9A,0x6D,0x34,0x9A,0x6D,0x36,0x9A,0x6D,0xA4,0x9A,0x6D,0xA6,0x9A,0x6D,0xB4,0x9A,0x6D,0xB6,0x9B,0x49,0x24,0x9B,0x49,0x26,0x9B,0x49,0x34,0x9B,0x49,0x36,0x9B,0x49,0xA4,0x9B,0x49,0xA6,0x9B,0x49,0xB4,0x9B,0x49,0xB6,0x9B,0x4D,0x24,0x9B,0x4D,0x26,0x9B,0x4D,0x34,0x9B,0x4D,0x36,0x9B,0x4D,0xA4,0x9B,0x4D,0xA6,0x9B,0x4D,0xB4,0x9B,0x4D,0xB6,0x9B,0x69,0x24,0x9B,0x69,0x26,0x9B,0x69,0x34,0x9B,0x69,0x36,0x9B,0x69,0xA4,0x9B,0x69,0xA6,0x9B,0x69,0xB4,0x9B,0x69,0xB6,0x9B,0x6D,0x24,0x9B,0x6D,0x26,0x9B,0x6D,0x34,0x9B,0x6D,0x36,0x9B,0x6D,0xA4,0x9B,0x6D,0xA6,0x9B,0x6D,0xB4,0x9B,0x6D,0xB6,0xD2,0x49,0x24,0xD2,0x49,0x26,0xD2,0x49,0x34,0xD2,0x49,0x36,0xD2,0x49,0xA4,0xD2,0x49,0xA6,0xD2,0x49,0xB4,0xD2,0x49,0xB6,0xD2,0x4D,0x24,0xD2,0x4D,0x26,0xD2,0x4D,0x34,0xD2,0x4D,0x36,0xD2,0x4D,0xA4,0xD2,0x4D,0xA6,0xD2,0x4D,0xB4,0xD2,0x4D,0xB6,0xD2,0x69,0x24,0xD2,0x69,0x26,0xD2,0x69,0x34,0xD2,0x69,0x36,0xD2,0x69,0xA4,0xD2,0x69,0xA6,0xD2,0x69,0xB4,0xD2,0x69,0xB6,0xD2,0x6D,0x24,0xD2,0x6D,0x26,0xD2,0x6D,0x34,0xD2,0x6D,0x36,0xD2,0x6D,0xA4,0xD2,0x6D,0xA6,0xD2,0x6D,0xB4,0xD2,0x6D,0xB6,0xD3,0x49,0x24,0xD3,0x49,0x26,0xD3,0x49,0x34,0xD3,0x49,0x36,0xD3,0x49,0xA4,0xD3,0x49,0xA6,0xD3,0x49,0xB4,0xD3,0x49,0xB6,0xD3,0x4D,0x24,0xD3,0x4D,0x26,0xD3,0x4D,0x34,0xD3,\
0x4D,0x36,0xD3,0x4D,0xA4,0xD3,0x4D,0xA6,0xD3,0x4D,0xB4,0xD3,0x4D,0xB6,0xD3,0x69,0x24,0xD3,0x69,0x26,0xD3,0x69,0x34,0xD3,0x69,0x36,0xD3,0x69,0xA4,0xD3,0x69,0xA6,0xD3,0x69,0xB4,0xD3,0x69,0xB6,0xD3,0x6D,0x24,0xD3,0x6D,0x26,0xD3,0x6D,0x34,0xD3,0x6D,0x36,0xD3,0x6D,0xA4,0xD3,0x6D,0xA6,0xD3,0x6D,0xB4,0xD3,0x6D,0xB6,0xDA,0x49,0x24,0xDA,0x49,0x26,0xDA,0x49,0x34,0xDA,0x49,0x36,0xDA,0x49,0xA4,0xDA,0x49,0xA6,0xDA,0x49,0xB4,0xDA,0x49,0xB6,0xDA,0x4D,0x24,0xDA,0x4D,0x26,0xDA,0x4D,0x34,0xDA,0x4D,0x36,0xDA,0x4D,0xA4,0xDA,0x4D,0xA6,0xDA,0x4D,0xB4,0xDA,0x4D,0xB6,0xDA,0x69,0x24,0xDA,0x69,0x26,0xDA,0x69,0x34,0xDA,0x69,0x36,0xDA,0x69,0xA4,0xDA,0x69,0xA6,0xDA,0x69,0xB4,0xDA,0x69,0xB6,0xDA,0x6D,0x24,0xDA,0x6D,0x26,0xDA,0x6D,0x34,0xDA,0x6D,0x36,0xDA,0x6D,0xA4,0xDA,0x6D,0xA6,0xDA,0x6D,0xB4,0xDA,0x6D,0xB6,0xDB,0x49,0x24,0xDB,0x49,0x26,0xDB,0x49,0x34,0xDB,0x49,0x36,0xDB,0x49,0xA4,0xDB,0x49,0xA6,0xDB,0x49,0xB4,0xDB,0x49,0xB6,0xDB,0x4D,0x24,0xDB,0x4D,0x26,0xDB,0x4D,0x34,0xDB,0x4D,0x36,0xDB,0x4D,0xA4,0xDB,0x4D,0xA6,0xDB,0x4D,0xB4,0xDB,0x4D,0xB6,0xDB,0x69,0x24,0xDB,0x69,0x26,0xDB,0x69,0x34,0xDB,0x69,0x36,0xDB,0x69,0xA4,0xDB,0x69,0xA6,0xDB,0x69,0xB4,0xDB,0x69,0xB6,0xDB,0x6D,0x24,0xDB,0x6D,0x26,0xDB,0x6D,0x34,0xDB,0x6D,0x36,0xDB,0x6D,0xA4,0xDB,0x6D,0xA6,0xDB,0x6D,0xB4,0xDB,0x6D,0xB6};
class WS2812B {
public:
// Constructor: number of LEDs
WS2812B (uint16_t number_of_leds);// Constuctor
~WS2812B();
void
begin(void),
show(void),
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);
uint8_t
// *getPixels(void) const,
getBrightness(void) const;
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; }
private:
boolean
begun; // true if begin() previously called
uint16_t
numLEDs, // Number of RGB LEDs in strip
numBytes; // Size of 'pixels' buffer
uint8_t
brightness,
*pixels, // Holds the current LED color values, which the external API calls interact with 9 bytes per pixel + start + end empty bytes
*doubleBuffer, // Holds the start of the double buffer (1 buffer for async DMA transfer and one for the API interaction.
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
};