Michele Furlanetto / Mbed 2 deprecated mbed_keyboard

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Dependencies:   TextLCD mbed MMA8451Q TSI

Speaker.h@17:01fe47dda43b, 2015-10-26 (annotated)

Committer:
mfurlanetto
Date:
Mon Oct 26 14:38:00 2015 +0000
Branch:
mono
Revision:
17:01fe47dda43b
Parent:
10:6e18b220e10c 
risolto bug di visualizzazione.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mfurlanetto 6:459ddd3079fa 1 #include "mbed.h"
mfurlanetto 8:60231840370f 2
mfurlanetto 8:60231840370f 3 #ifndef SPEAKER
mfurlanetto 8:60231840370f 4 #define SPEAKER
mfurlanetto 6:459ddd3079fa 5 // new class to play a note on Speaker based on PwmOut class
mfurlanetto 6:459ddd3079fa 6 // based on zchen311 implementation
mfurlanetto 6:459ddd3079fa 7 // http://mbed.org/users/zchen311/code/Speaker/
mfurlanetto 6:459ddd3079fa 8 class Speaker
mfurlanetto 6:459ddd3079fa 9 {
mfurlanetto 6:459ddd3079fa 10 public:
mfurlanetto 6:459ddd3079fa 11 Speaker(PinName pin) : _pin(pin) {
mfurlanetto 6:459ddd3079fa 12 _volume=0.2;
mfurlanetto 6:459ddd3079fa 13 }
mfurlanetto 6:459ddd3079fa 14 // class method to play a note based on PwmOut class
mfurlanetto 10:6e18b220e10c 15 void changeFrequency(double newNote) {
mfurlanetto 10:6e18b220e10c 16 _pin.period(1.0/newNote);
mfurlanetto 6:459ddd3079fa 17 _pin = _volume/2.0;
mfurlanetto 6:459ddd3079fa 18 }
mfurlanetto 10:6e18b220e10c 19
mfurlanetto 10:6e18b220e10c 20 void stop(){
mfurlanetto 10:6e18b220e10c 21 _pin=1;
mfurlanetto 10:6e18b220e10c 22 _pin.period(0);
mfurlanetto 6:459ddd3079fa 23 }
mfurlanetto 10:6e18b220e10c 24
mfurlanetto 6:459ddd3079fa 25 float* getVolumeBuffer(){
mfurlanetto 6:459ddd3079fa 26 return &_volume;
mfurlanetto 6:459ddd3079fa 27 }
mfurlanetto 6:459ddd3079fa 28 private:
mfurlanetto 6:459ddd3079fa 29 PwmOut _pin;
mfurlanetto 6:459ddd3079fa 30 float _volume;
mfurlanetto 8:60231840370f 31 };
mfurlanetto 8:60231840370f 32
mfurlanetto 8:60231840370f 33 #endif