ze chen / Speaker

Speaker class file

Dependents:   musicplayer Beat_Demo_full_full jumper mbed_AOS_proj ... more

Speaker.h

Committer:
zchen311
Date:
2013-02-12
Revision:
0:41292907c9cb

File content as of revision 0:41292907c9cb:

#include "mbed.h"
// new class to play a note on Speaker based on PwmOut class
class Speaker
{
public:
    Speaker(PinName pin) : _pin(pin) {
// _pin(pin) means pass pin to the Speaker Constructor
    }
// class method to play a note based on PwmOut class
    void PlayNote(float frequency, float duration, float volume) {
        _pin.period(1.0/frequency);
        _pin = volume/2.0;
        wait(duration);
        _pin = 0.0;
    }
 
private:
    PwmOut _pin;
};