![](/media/cache/group/default_image.jpg.50x50_q85.jpg)
Lab 3 Part 4
Dependencies: mbed wave_player mbed-rtos 4DGL-uLCD-SE SDFileSystem
Speaker.h
- Committer:
- glanier9
- Date:
- 2021-02-25
- Revision:
- 12:94b16c66c09a
File content as of revision 12:94b16c66c09a:
#include "mbed.h" // a 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; };