CHEE CHENG LIM / Mbed 2 deprecated Chumbaka_backup

Chumbaka

Dependencies:   Servo mbed Chumbaka_backup

Dependents:   Chumbaka_backup

Fork of Servo_HelloWorld by Simon Ford

Speaker/Speaker.h@7:5a56972596b9, 2014-09-26 (annotated)

Committer:
limcheecheng
Date:
Fri Sep 26 08:15:12 2014 +0000
Revision:
7:5a56972596b9
Parent:
5:805d37469e22 
Commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
limcheecheng 5:805d37469e22 1 #include "mbed.h"
limcheecheng 5:805d37469e22 2 // new class to play a note on Speaker based on PwmOut class
limcheecheng 4:4e2ad2aa99b7 3 class Speaker
limcheecheng 4:4e2ad2aa99b7 4 {
limcheecheng 4:4e2ad2aa99b7 5 public:
limcheecheng 4:4e2ad2aa99b7 6 Speaker(PinName pin) : _pin(pin) {
limcheecheng 4:4e2ad2aa99b7 7 // _pin(pin) means pass pin to the Speaker Constructor
limcheecheng 4:4e2ad2aa99b7 8 }
limcheecheng 5:805d37469e22 9 // class method to play a note based on PwmOut class
limcheecheng 4:4e2ad2aa99b7 10 void PlayNote(float frequency, float duration, float volume) {
limcheecheng 5:805d37469e22 11 _pin.period(1.0/frequency);
limcheecheng 5:805d37469e22 12 _pin = volume/2.0;
limcheecheng 4:4e2ad2aa99b7 13 wait(duration);
limcheecheng 5:805d37469e22 14 _pin = 0.0;
limcheecheng 4:4e2ad2aa99b7 15 }
limcheecheng 4:4e2ad2aa99b7 16
limcheecheng 5:805d37469e22 17 private:
limcheecheng 5:805d37469e22 18 PwmOut _pin;
limcheecheng 5:805d37469e22 19 };