70 lines
2.1 KiB
C++
70 lines
2.1 KiB
C++
/*
|
|
Copyright (C) 2012 Paulo Marques (pjp.marques@gmail.com)
|
|
|
|
Permission is hereby granted, free of charge, to any person obtaining a copy of
|
|
this software and associated documentation files (the "Software"), to deal in
|
|
the Software without restriction, including without limitation the rights to
|
|
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
|
|
the Software, and to permit persons to whom the Software is furnished to do so,
|
|
subject to the following conditions:
|
|
|
|
The above copyright notice and this permission notice shall be included in all
|
|
copies or substantial portions of the Software.
|
|
|
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
|
|
FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
|
|
COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
|
|
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
|
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
*/
|
|
|
|
/*
|
|
* Library for controlling a chain of RGB LEDs based on the P9813 protocol.
|
|
* E.g., supports the Grove Chainable RGB LED product.
|
|
*
|
|
* Information about the P9813 protocol obtained from:
|
|
* http://www.seeedstudio.com/wiki/index.php?title=Twig_-_Chainable_RGB_LED
|
|
*/
|
|
|
|
|
|
|
|
#ifndef __ChainableLED_h__
|
|
#define __ChainableLED_h__
|
|
|
|
#if defined (SPARK)
|
|
#include "application.h"
|
|
#else
|
|
#include "Arduino.h"
|
|
#endif
|
|
|
|
#define _CL_RED 0
|
|
#define _CL_GREEN 1
|
|
#define _CL_BLUE 2
|
|
#define _CLK_PULSE_DELAY 20
|
|
|
|
class ChainableLED
|
|
{
|
|
public:
|
|
ChainableLED(byte clk_pin, byte data_pin, byte number_of_leds);
|
|
~ChainableLED();
|
|
|
|
void init();
|
|
void setColorRGB(byte led, byte red, byte green, byte blue);
|
|
void setColorHSB(byte led, float hue, float saturation, float brightness);
|
|
|
|
private:
|
|
byte _clk_pin;
|
|
byte _data_pin;
|
|
byte _num_leds;
|
|
|
|
byte* _led_state;
|
|
|
|
void clk(void);
|
|
void sendByte(byte b);
|
|
void sendColor(byte red, byte green, byte blue);
|
|
};
|
|
|
|
#endif
|
|
|