Liyang HU / Pulsator Featured

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.

Dependents:   RedButton

Pulsator.h@9:b40252f5fee7, 2015-04-28 (annotated)

Committer:
huliyang
Date:
Tue Apr 28 15:42:25 2015 +0000
Revision:
9:b40252f5fee7
Parent:
8:ddedf56b2eb0
Child:
10:1ade8e824939
Reflow license text.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
huliyang 1:bcddb9898625 1 /* Copyright (c) 2015 Liyang HU, MIT License
huliyang 1:bcddb9898625 2 *
huliyang 9:b40252f5fee7 3 * Permission is hereby granted, free of charge, to any person obtaining
huliyang 9:b40252f5fee7 4 * a copy of this software and associated documentation files (the
huliyang 9:b40252f5fee7 5 * "Software"), to deal in the Software without restriction, including
huliyang 9:b40252f5fee7 6 * without limitation the rights to use, copy, modify, merge, publish,
huliyang 9:b40252f5fee7 7 * distribute, sublicense, and/or sell copies of the Software, and to
huliyang 9:b40252f5fee7 8 * permit persons to whom the Software is furnished to do so, subject to
huliyang 9:b40252f5fee7 9 * the following conditions:
huliyang 1:bcddb9898625 10 *
huliyang 9:b40252f5fee7 11 * The above copyright notice and this permission notice shall be
huliyang 9:b40252f5fee7 12 * included in all copies or substantial portions of the Software.
huliyang 1:bcddb9898625 13 *
huliyang 9:b40252f5fee7 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
huliyang 9:b40252f5fee7 15 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
huliyang 9:b40252f5fee7 16 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
huliyang 9:b40252f5fee7 17 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
huliyang 9:b40252f5fee7 18 * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
huliyang 9:b40252f5fee7 19 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
huliyang 9:b40252f5fee7 20 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
huliyang 1:bcddb9898625 21 */
huliyang 1:bcddb9898625 22
huliyang 0:dda7f6f55dc1 23 #include <mbed.h>
huliyang 0:dda7f6f55dc1 24 #include <PwmOut.h>
huliyang 0:dda7f6f55dc1 25
huliyang 6:5eeb1acc1c50 26 class Pulsator : Ticker
huliyang 0:dda7f6f55dc1 27 {
huliyang 0:dda7f6f55dc1 28 private:
huliyang 0:dda7f6f55dc1 29 PwmOut out;
huliyang 8:ddedf56b2eb0 30 float phase;
huliyang 0:dda7f6f55dc1 31
huliyang 6:5eeb1acc1c50 32 bool _active_high;
huliyang 6:5eeb1acc1c50 33 bool _enable;
huliyang 8:ddedf56b2eb0 34 float (*_fun)(float phase);
huliyang 6:5eeb1acc1c50 35 float _gamma;
huliyang 6:5eeb1acc1c50 36 float _period;
huliyang 6:5eeb1acc1c50 37 int _levels;
huliyang 0:dda7f6f55dc1 38
huliyang 5:26cc18306d95 39 void disable(void);
huliyang 0:dda7f6f55dc1 40 void enable(void);
huliyang 6:5eeb1acc1c50 41 void reload(void);
huliyang 5:26cc18306d95 42 void step(void);
huliyang 0:dda7f6f55dc1 43
huliyang 0:dda7f6f55dc1 44 public:
huliyang 6:5eeb1acc1c50 45 Pulsator(PinName pin = LED1);
huliyang 1:bcddb9898625 46 Pulsator& operator=(bool state);
huliyang 5:26cc18306d95 47 operator bool(void);
huliyang 6:5eeb1acc1c50 48
huliyang 6:5eeb1acc1c50 49 Pulsator& active_high(bool high = false);
huliyang 8:ddedf56b2eb0 50 Pulsator& fun(float (*fp)(float phase) = NULL);
huliyang 7:7abc04b4c474 51 Pulsator& gamma(float power = 2.2f);
huliyang 6:5eeb1acc1c50 52 Pulsator& levels(int number = 128);
huliyang 7:7abc04b4c474 53 Pulsator& period(float seconds = 1.0f);
huliyang 0:dda7f6f55dc1 54 };