James Hawkins / Mbed 2 deprecated Alarm

alarm

Dependencies:   PinDetect SDFileSystem mbed wave_player

Speaker.h@0:a2ded96ce136, 2014-12-02 (annotated)

Committer:
jhawkins38
Date:
Tue Dec 02 15:21:13 2014 +0000
Revision:
0:a2ded96ce136
for alarm

Who changed what in which revision?

UserRevisionLine numberNew contents of line
jhawkins38 0:a2ded96ce136 1 #include "mbed.h"
jhawkins38 0:a2ded96ce136 2 // a new class to play a note on Speaker based on PwmOut class
jhawkins38 0:a2ded96ce136 3 class Speaker
jhawkins38 0:a2ded96ce136 4 {
jhawkins38 0:a2ded96ce136 5 public:
jhawkins38 0:a2ded96ce136 6 Speaker(PinName pin) : _pin(pin) {
jhawkins38 0:a2ded96ce136 7 // _pin(pin) means pass pin to the Speaker Constructor
jhawkins38 0:a2ded96ce136 8 }
jhawkins38 0:a2ded96ce136 9 // class method to play a note based on PwmOut class
jhawkins38 0:a2ded96ce136 10 void PlayNote(float frequency, float duration, float volume) {
jhawkins38 0:a2ded96ce136 11 _pin.period(1.0/frequency);
jhawkins38 0:a2ded96ce136 12 _pin = volume/2.0;
jhawkins38 0:a2ded96ce136 13 wait(duration);
jhawkins38 0:a2ded96ce136 14 _pin = 0.0;
jhawkins38 0:a2ded96ce136 15 }
jhawkins38 0:a2ded96ce136 16
jhawkins38 0:a2ded96ce136 17 private:
jhawkins38 0:a2ded96ce136 18 PwmOut _pin;
jhawkins38 0:a2ded96ce136 19 };