Jackson Lv / PWM_RGB

using PWM to control RGB LED for RedBear Demo

ChainableLED.h@0:22cae1dee34b, 2016-04-11 (annotated)

Committer:
Jackson_lv
Date:
Mon Apr 11 04:19:53 2016 +0000
Revision:
0:22cae1dee34b
using PWM to control RGB LED for RedBear BLE Nano

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Jackson_lv 0:22cae1dee34b 1 /*
Jackson_lv 0:22cae1dee34b 2 Copyright (C) 2013 Seeed Technology Inc.
Jackson_lv 0:22cae1dee34b 3 Copyright (C) 2012 Paulo Marques (pjp.marques@gmail.com)
Jackson_lv 0:22cae1dee34b 4
Jackson_lv 0:22cae1dee34b 5 Permission is hereby granted, free of charge, to any person obtaining a copy of
Jackson_lv 0:22cae1dee34b 6 this software and associated documentation files (the "Software"), to deal in
Jackson_lv 0:22cae1dee34b 7 the Software without restriction, including without limitation the rights to
Jackson_lv 0:22cae1dee34b 8 use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
Jackson_lv 0:22cae1dee34b 9 the Software, and to permit persons to whom the Software is furnished to do so,
Jackson_lv 0:22cae1dee34b 10 subject to the following conditions:
Jackson_lv 0:22cae1dee34b 11
Jackson_lv 0:22cae1dee34b 12 The above copyright notice and this permission notice shall be included in all
Jackson_lv 0:22cae1dee34b 13 copies or substantial portions of the Software.
Jackson_lv 0:22cae1dee34b 14
Jackson_lv 0:22cae1dee34b 15 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
Jackson_lv 0:22cae1dee34b 16 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
Jackson_lv 0:22cae1dee34b 17 FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
Jackson_lv 0:22cae1dee34b 18 COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
Jackson_lv 0:22cae1dee34b 19 IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
Jackson_lv 0:22cae1dee34b 20 CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Jackson_lv 0:22cae1dee34b 21 */
Jackson_lv 0:22cae1dee34b 22
Jackson_lv 0:22cae1dee34b 23 /*
Jackson_lv 0:22cae1dee34b 24 * Library for controlling a chain of RGB LEDs based on the P9813 protocol.
Jackson_lv 0:22cae1dee34b 25 * E.g., supports the Grove Chainable RGB LED product.
Jackson_lv 0:22cae1dee34b 26 *
Jackson_lv 0:22cae1dee34b 27 * Information about the P9813 protocol obtained from:
Jackson_lv 0:22cae1dee34b 28 * http://www.seeedstudio.com/wiki/index.php?title=Twig_-_Chainable_RGB_LED
Jackson_lv 0:22cae1dee34b 29 */
Jackson_lv 0:22cae1dee34b 30
Jackson_lv 0:22cae1dee34b 31
Jackson_lv 0:22cae1dee34b 32
Jackson_lv 0:22cae1dee34b 33 #ifndef __ChainableLED_h__
Jackson_lv 0:22cae1dee34b 34 #define __ChainableLED_h__
Jackson_lv 0:22cae1dee34b 35
Jackson_lv 0:22cae1dee34b 36 #include "mbed.h"
Jackson_lv 0:22cae1dee34b 37
Jackson_lv 0:22cae1dee34b 38 #define _CL_RED 0
Jackson_lv 0:22cae1dee34b 39 #define _CL_GREEN 1
Jackson_lv 0:22cae1dee34b 40 #define _CL_BLUE 2
Jackson_lv 0:22cae1dee34b 41 #define _CLK_PULSE_DELAY 20
Jackson_lv 0:22cae1dee34b 42
Jackson_lv 0:22cae1dee34b 43 class ChainableLED
Jackson_lv 0:22cae1dee34b 44 {
Jackson_lv 0:22cae1dee34b 45 public:
Jackson_lv 0:22cae1dee34b 46 ChainableLED(PinName r_pin, PinName g_pin, PinName b_pin, unsigned int number_of_leds);
Jackson_lv 0:22cae1dee34b 47 ~ChainableLED();
Jackson_lv 0:22cae1dee34b 48
Jackson_lv 0:22cae1dee34b 49 void setColorRGB(unsigned int led, float red, float green, float blue);
Jackson_lv 0:22cae1dee34b 50 void setColorHSB(unsigned int led, float hue, float saturation, float brightness);
Jackson_lv 0:22cae1dee34b 51
Jackson_lv 0:22cae1dee34b 52 private:
Jackson_lv 0:22cae1dee34b 53 DigitalOut _r_pin;
Jackson_lv 0:22cae1dee34b 54 DigitalOut _g_pin;
Jackson_lv 0:22cae1dee34b 55 DigitalOut _b_pin;
Jackson_lv 0:22cae1dee34b 56 unsigned int _num_leds;
Jackson_lv 0:22cae1dee34b 57
Jackson_lv 0:22cae1dee34b 58 uint8_t _led_state[3];
Jackson_lv 0:22cae1dee34b 59
Jackson_lv 0:22cae1dee34b 60 void sendColor(uint8_t red, uint8_t green, uint8_t blue);
Jackson_lv 0:22cae1dee34b 61 };
Jackson_lv 0:22cae1dee34b 62
Jackson_lv 0:22cae1dee34b 63 #endif