Use the hardware PwmOut to pulsate an LED (or something else), with selectable active high/low, customisable intensity function, gamma correction, and number of brightness levels.
Diff: Pulsator.h
- Revision:
- 1:bcddb9898625
- Parent:
- 0:dda7f6f55dc1
- Child:
- 5:26cc18306d95
--- a/Pulsator.h Fri Apr 24 03:56:51 2015 +0000 +++ b/Pulsator.h Fri Apr 24 05:14:06 2015 +0000 @@ -1,3 +1,21 @@ +/* Copyright (c) 2015 Liyang HU, MIT License + * + * 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. + */ + #include <mbed.h> #include <PwmOut.h> @@ -6,7 +24,7 @@ private: PwmOut out; Ticker ticker; - float phase_2; // phase / 2 + float phase_2; //!< \a phase / 2 const float period; const bool active_high; @@ -19,5 +37,5 @@ public: Pulsator(PinName pin = LED1, float period = 1.0, bool active_high = true, float gamma = 2.2, int levels = 32); - Pulsator& operator =(bool state); + Pulsator& operator=(bool state); };