Rachel Huang / Mbed 2 deprecated electric_piano

ece 4180 project 2019

Dependencies:   mbed wave_player mbed-rtos 4DGL-uLCD-SE SDFileSystem FATFileSystem

Speaker.h

Committer:
rhuang77
Date:
2019-04-20
Revision:
3:221fb009c1ac
Parent:
0:567492543056

File content as of revision 3:221fb009c1ac:

#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;
};