Ryan Williams / Mbed 2 deprecated HACKGT_copy

hack gt final code

Dependencies:   4DGL-uLCD-SE BMP085 PinDetect SDFileSystem mbed wave_player

Speaker.h@14:23390a020d1c, 2016-09-28 (annotated)

Committer:
otis22894
Date:
Wed Sep 28 00:16:16 2016 +0000
Revision:
14:23390a020d1c
Parent:
4:d29e7e826c42 
initial commit;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
otis22894 4:d29e7e826c42 1 #include "mbed.h"
otis22894 4:d29e7e826c42 2 // new class to play a note on Speaker based on PwmOut class
otis22894 4:d29e7e826c42 3 class Speaker
otis22894 4:d29e7e826c42 4 {
otis22894 4:d29e7e826c42 5 public:
otis22894 4:d29e7e826c42 6 Speaker(PinName pin) : _pin(pin) {
otis22894 4:d29e7e826c42 7 // _pin(pin) means pass pin to the Speaker Constructor
otis22894 4:d29e7e826c42 8 }
otis22894 4:d29e7e826c42 9 // class method to play a note based on PwmOut class
otis22894 4:d29e7e826c42 10 void PlayNote(float frequency, float duration, float volume) {
otis22894 4:d29e7e826c42 11 _pin.period(1.0/frequency);
otis22894 4:d29e7e826c42 12 _pin = volume/2.0;
otis22894 4:d29e7e826c42 13 wait(duration);
otis22894 4:d29e7e826c42 14 _pin = 0.0;
otis22894 4:d29e7e826c42 15 }
otis22894 4:d29e7e826c42 16
otis22894 4:d29e7e826c42 17 private:
otis22894 4:d29e7e826c42 18 PwmOut _pin;
otis22894 4:d29e7e826c42 19 };