example skeleton code for student lab project

Dependencies:   4DGL-uLCD-SE PinDetect SDFileSystem mbed

Fork of mymbedthermostat by jim hamblen

Speaker.h

Committer:
4180_1
Date:
2014-01-23
Revision:
4:9a4d22a279b3
Parent:
2:58d85409f7ff

File content as of revision 4:9a4d22a279b3:

#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;
};