Motorfader.h

00001 /* mbed Motorfader Library
00002  * Copyright (c) 2019 abanum
00003  *
00004  * Permission is hereby granted, free of charge, to any person obtaining a copy
00005  * of this software and associated documentation files (the "Software"), to deal
00006  * in the Software without restriction, including without limitation the rights
00007  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
00008  * copies of the Software, and to permit persons to whom the Software is
00009  * furnished to do so, subject to the following conditions:
00010  *
00011  * The above copyright notice and this permission notice shall be included in
00012  * all copies or substantial portions of the Software.
00013  *
00014  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
00015  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
00016  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
00017  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
00018  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
00019  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
00020  * THE SOFTWARE.
00021  */
00022   
00023 #ifndef MBED_Motorfader_H
00024 #define MBED_Motorfader_H
00025 
00026 #include "mbed.h"
00027 
00028 /** Motorfader control class, based on a PwmOut
00029  *
00030  * Example:
00031  * @code
00032  * // Continuously sweep the servo through it's full range
00033  * #include "mbed.h"
00034  * #include "WT20003M03.h"
00035  * 
00036  * WT20003M03 myaudio(p21);
00037  * 
00038  * int main() {
00039        mysound.volume(8);
00040  *     while(1) {
00041  *             myaudio.play();
00042  *             wait(10);
00043  *     }
00044  * }
00045  * @endcode
00046  */
00047 class Motorfader {
00048 
00049 public:
00050     /** Create a servo object connected to the specified PwmOut pin
00051      *
00052      * @param pin DigitalOut pin to connect to 
00053      */
00054     Motorfader(PinName analogpin,PinName cwpin,PinName ccwpin);
00055     
00056     /** Set position
00057      *
00058      * @param addres 
00059      */
00060     void set(float pos,float vel);
00061     
00062     /**  Get position
00063      *
00064      * @param Read volume.
00065      */
00066     float get();
00067 
00068     void update();
00069 
00070 protected:
00071     AnalogIn _faderPos;
00072     PwmOut _cwpwm;
00073     PwmOut _ccwpwm;
00074     float _setPos;
00075     float _setVel;
00076     float _nowPos;
00077     float _oldPos;
00078 //    unsigned int _volume;
00079 };
00080 
00081 #endif