ISD1820P.h

00001 #ifndef _ISD1820P_H_
00002 #define _ISD1820P_H_
00003 
00004 #include "mbed.h"
00005 
00006 /** ISD1820P class.
00007  *  Used to control recording and playblack of sounds using this component: http://www.seeedstudio.com/depot/Grove-Recorder-p-1825.html
00008  */
00009 class ISD1820P {
00010 public:
00011     /**
00012      *  Constructor. Initializes the maximum record/playback sound to defaultMaxSoundTime.
00013      *
00014      *  @param recordPin The pin that controls recording.
00015      *  @param playPin The pin that controls playback.
00016      */
00017     ISD1820P(PinName recordPin, PinName playPin);
00018     
00019     /**
00020      *  Starts a new recording.
00021      *
00022      *  @param time Controls how long to record.
00023      */
00024     void startRecording(float time);
00025     
00026     /**
00027      *  Starts a new recording with a length of the maximum time.
00028      */
00029     void startRecordingMaxTime();
00030     
00031     /**
00032      *  Stops the current recording.
00033      */
00034     void stopRecording();
00035     
00036     /**
00037      *  Starts playback of the previous recording.
00038      *
00039      *  @param time Controls how long to play the last recording.
00040      */
00041     void startPlaying(float time);
00042     
00043     
00044     /**
00045      *  Starts playback of the previous recording up to the maximum time.
00046      */
00047     void startPlayingMaxTime();
00048     
00049     /**
00050      *  Stops the current playback
00051      */
00052     void stopPlaying();
00053     
00054     /**
00055      *  Set the default max recording and playback time. The default is 10 seconds.
00056      *
00057      *  @param maxTime The maximum time in seconds to record and playback sounds.
00058      */
00059     void setMaxSoundTime(float maxTime);
00060 
00061     
00062 private:    
00063     /**
00064      *  Default sound recording/playback is 10 seconds
00065      */
00066     const static float defaultMaxSoundTime = 10.0f;
00067      
00068     float maxSoundTime;
00069     
00070     DigitalOut record;
00071     DigitalOut play;
00072     
00073     Timeout recordTimeout;
00074     Timeout playTimeout;
00075 };
00076     
00077 #endif