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Dependencies:   4DGL-uLCD-SE PinDetect mbed

Speaker.h@0:09b7e6aa75a9, 2021-11-30 (annotated)

Committer:
jwalker366
Date:
Tue Nov 30 18:58:54 2021 +0000
Revision:
0:09b7e6aa75a9
for sub;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
jwalker366 0:09b7e6aa75a9 1 #ifndef SPEAKER_H
jwalker366 0:09b7e6aa75a9 2 #define SPEAKER_H
jwalker366 0:09b7e6aa75a9 3 #include "mbed.h"
jwalker366 0:09b7e6aa75a9 4
jwalker366 0:09b7e6aa75a9 5 // new class to play a note on Speaker based on PwmOut class
jwalker366 0:09b7e6aa75a9 6 class Speaker
jwalker366 0:09b7e6aa75a9 7 {
jwalker366 0:09b7e6aa75a9 8 public:
jwalker366 0:09b7e6aa75a9 9 Speaker(PinName pin) : _pin(pin) {
jwalker366 0:09b7e6aa75a9 10 // _pin(pin) means pass pin to the Speaker Constructor
jwalker366 0:09b7e6aa75a9 11 }
jwalker366 0:09b7e6aa75a9 12 // class method to play a note based on PwmOut class
jwalker366 0:09b7e6aa75a9 13 void PlayNote(float frequency, float duration, float volume) {
jwalker366 0:09b7e6aa75a9 14 _pin.period(1.0/frequency);
jwalker366 0:09b7e6aa75a9 15 _pin = volume/2.0;
jwalker366 0:09b7e6aa75a9 16 wait(duration);
jwalker366 0:09b7e6aa75a9 17 _pin = 0.0;
jwalker366 0:09b7e6aa75a9 18 }
jwalker366 0:09b7e6aa75a9 19
jwalker366 0:09b7e6aa75a9 20 private:
jwalker366 0:09b7e6aa75a9 21 PwmOut _pin;
jwalker366 0:09b7e6aa75a9 22 };
jwalker366 0:09b7e6aa75a9 23 #endif