- Added printer variant using non-geared direct-drive Z belts. - Added experimental support for LED lighting.master
Marcio Teixeira
7 years ago
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20ec0a64cb
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09f0413cf7
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/*--------------------------------------------------------------------
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This file is part of the Adafruit NeoPixel library.
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NeoPixel is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as
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published by the Free Software Foundation, either version 3 of
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the License, or (at your option) any later version.
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NeoPixel is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with NeoPixel. If not, see
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<http://www.gnu.org/licenses/>.
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--------------------------------------------------------------------*/
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#ifndef ADAFRUIT_NEOPIXEL_H
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#define ADAFRUIT_NEOPIXEL_H
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#if (ARDUINO >= 100)
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#include <Arduino.h>
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#else
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#include <WProgram.h>
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#include <pins_arduino.h>
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#endif
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// The order of primary colors in the NeoPixel data stream can vary
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// among device types, manufacturers and even different revisions of
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// the same item. The third parameter to the Adafruit_NeoPixel
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// constructor encodes the per-pixel byte offsets of the red, green
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// and blue primaries (plus white, if present) in the data stream --
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// the following #defines provide an easier-to-use named version for
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// each permutation. e.g. NEO_GRB indicates a NeoPixel-compatible
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// device expecting three bytes per pixel, with the first byte
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// containing the green value, second containing red and third
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// containing blue. The in-memory representation of a chain of
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// NeoPixels is the same as the data-stream order; no re-ordering of
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// bytes is required when issuing data to the chain.
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// Bits 5,4 of this value are the offset (0-3) from the first byte of
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// a pixel to the location of the red color byte. Bits 3,2 are the
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// green offset and 1,0 are the blue offset. If it is an RGBW-type
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// device (supporting a white primary in addition to R,G,B), bits 7,6
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// are the offset to the white byte...otherwise, bits 7,6 are set to
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// the same value as 5,4 (red) to indicate an RGB (not RGBW) device.
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// i.e. binary representation:
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// 0bWWRRGGBB for RGBW devices
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// 0bRRRRGGBB for RGB
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// RGB NeoPixel permutations; white and red offsets are always same
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// Offset: W R G B
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#define NEO_RGB ((0 << 6) | (0 << 4) | (1 << 2) | (2))
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#define NEO_RBG ((0 << 6) | (0 << 4) | (2 << 2) | (1))
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#define NEO_GRB ((1 << 6) | (1 << 4) | (0 << 2) | (2))
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#define NEO_GBR ((2 << 6) | (2 << 4) | (0 << 2) | (1))
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#define NEO_BRG ((1 << 6) | (1 << 4) | (2 << 2) | (0))
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#define NEO_BGR ((2 << 6) | (2 << 4) | (1 << 2) | (0))
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// RGBW NeoPixel permutations; all 4 offsets are distinct
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// Offset: W R G B
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#define NEO_WRGB ((0 << 6) | (1 << 4) | (2 << 2) | (3))
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#define NEO_WRBG ((0 << 6) | (1 << 4) | (3 << 2) | (2))
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#define NEO_WGRB ((0 << 6) | (2 << 4) | (1 << 2) | (3))
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#define NEO_WGBR ((0 << 6) | (3 << 4) | (1 << 2) | (2))
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#define NEO_WBRG ((0 << 6) | (2 << 4) | (3 << 2) | (1))
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#define NEO_WBGR ((0 << 6) | (3 << 4) | (2 << 2) | (1))
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#define NEO_RWGB ((1 << 6) | (0 << 4) | (2 << 2) | (3))
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#define NEO_RWBG ((1 << 6) | (0 << 4) | (3 << 2) | (2))
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#define NEO_RGWB ((2 << 6) | (0 << 4) | (1 << 2) | (3))
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#define NEO_RGBW ((3 << 6) | (0 << 4) | (1 << 2) | (2))
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#define NEO_RBWG ((2 << 6) | (0 << 4) | (3 << 2) | (1))
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#define NEO_RBGW ((3 << 6) | (0 << 4) | (2 << 2) | (1))
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#define NEO_GWRB ((1 << 6) | (2 << 4) | (0 << 2) | (3))
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#define NEO_GWBR ((1 << 6) | (3 << 4) | (0 << 2) | (2))
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#define NEO_GRWB ((2 << 6) | (1 << 4) | (0 << 2) | (3))
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#define NEO_GRBW ((3 << 6) | (1 << 4) | (0 << 2) | (2))
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#define NEO_GBWR ((2 << 6) | (3 << 4) | (0 << 2) | (1))
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#define NEO_GBRW ((3 << 6) | (2 << 4) | (0 << 2) | (1))
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#define NEO_BWRG ((1 << 6) | (2 << 4) | (3 << 2) | (0))
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#define NEO_BWGR ((1 << 6) | (3 << 4) | (2 << 2) | (0))
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#define NEO_BRWG ((2 << 6) | (1 << 4) | (3 << 2) | (0))
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#define NEO_BRGW ((3 << 6) | (1 << 4) | (2 << 2) | (0))
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#define NEO_BGWR ((2 << 6) | (3 << 4) | (1 << 2) | (0))
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#define NEO_BGRW ((3 << 6) | (2 << 4) | (1 << 2) | (0))
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// Add NEO_KHZ400 to the color order value to indicate a 400 KHz
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// device. All but the earliest v1 NeoPixels expect an 800 KHz data
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// stream, this is the default if unspecified. Because flash space
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// is very limited on ATtiny devices (e.g. Trinket, Gemma), v1
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// NeoPixels aren't handled by default on those chips, though it can
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// be enabled by removing the ifndef/endif below -- but code will be
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// bigger. Conversely, can disable the NEO_KHZ400 line on other MCUs
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// to remove v1 support and save a little space.
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#define NEO_KHZ800 0x0000 // 800 KHz datastream
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#ifndef __AVR_ATtiny85__
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#define NEO_KHZ400 0x0100 // 400 KHz datastream
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#endif
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// If 400 KHz support is enabled, the third parameter to the constructor
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// requires a 16-bit value (in order to select 400 vs 800 KHz speed).
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// If only 800 KHz is enabled (as is default on ATtiny), an 8-bit value
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// is sufficient to encode pixel color order, saving some space.
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#ifdef NEO_KHZ400
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typedef uint16_t neoPixelType;
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#else
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typedef uint8_t neoPixelType;
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#endif
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class Adafruit_NeoPixel {
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public:
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// Constructor: number of LEDs, pin number, LED type
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Adafruit_NeoPixel(uint16_t n, uint8_t p=6, neoPixelType t=NEO_GRB + NEO_KHZ800);
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Adafruit_NeoPixel(void);
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~Adafruit_NeoPixel();
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void
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begin(void),
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show(void),
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setPin(uint8_t p),
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setPixelColor(uint16_t n, uint8_t r, uint8_t g, uint8_t b),
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setPixelColor(uint16_t n, uint8_t r, uint8_t g, uint8_t b, uint8_t w),
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setPixelColor(uint16_t n, uint32_t c),
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setBrightness(uint8_t),
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clear(),
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updateLength(uint16_t n),
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updateType(neoPixelType t);
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uint8_t
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*getPixels(void) const,
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getBrightness(void) const;
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int8_t
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getPin(void) { return pin; };
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uint16_t
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numPixels(void) const;
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static uint32_t
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Color(uint8_t r, uint8_t g, uint8_t b),
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Color(uint8_t r, uint8_t g, uint8_t b, uint8_t w);
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uint32_t
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getPixelColor(uint16_t n) const;
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inline bool
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canShow(void) { return (micros() - endTime) >= 300L; }
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protected:
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boolean
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#ifdef NEO_KHZ400 // If 400 KHz NeoPixel support enabled...
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is800KHz, // ...true if 800 KHz pixels
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#endif
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begun; // true if begin() previously called
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uint16_t
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numLEDs, // Number of RGB LEDs in strip
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numBytes; // Size of 'pixels' buffer below (3 or 4 bytes/pixel)
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int8_t
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pin; // Output pin number (-1 if not yet set)
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uint8_t
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brightness,
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*pixels, // Holds LED color values (3 or 4 bytes each)
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rOffset, // Index of red byte within each 3- or 4-byte pixel
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gOffset, // Index of green byte
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bOffset, // Index of blue byte
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wOffset; // Index of white byte (same as rOffset if no white)
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uint32_t
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endTime; // Latch timing reference
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#ifdef __AVR__
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volatile uint8_t
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*port; // Output PORT register
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uint8_t
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pinMask; // Output PORT bitmask
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#endif
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};
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#endif // ADAFRUIT_NEOPIXEL_H
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