Yeong Cho / Mbed 2 deprecated ece4180lab4

Wifi IoT Project

Dependencies:   4DGL-uLCD-SE mbed

Speaker.h@0:6e8326358c6c, 2016-11-01 (annotated)

Committer:
yscho529
Date:
Tue Nov 01 19:51:07 2016 +0000
Revision:
0:6e8326358c6c
Wifi IoT

Who changed what in which revision?

UserRevisionLine numberNew contents of line
yscho529 0:6e8326358c6c 1 #include "mbed.h"
yscho529 0:6e8326358c6c 2 // new class to play a note on Speaker based on PwmOut class
yscho529 0:6e8326358c6c 3 class Speaker
yscho529 0:6e8326358c6c 4 {
yscho529 0:6e8326358c6c 5 public:
yscho529 0:6e8326358c6c 6 Speaker(PinName pin) : _pin(pin) {
yscho529 0:6e8326358c6c 7 // _pin(pin) means pass pin to the Speaker Constructor
yscho529 0:6e8326358c6c 8 }
yscho529 0:6e8326358c6c 9 // class method to play a note based on PwmOut class
yscho529 0:6e8326358c6c 10 void PlayNote(float frequency, float duration, float volume) {
yscho529 0:6e8326358c6c 11 _pin.period(1.0/frequency);
yscho529 0:6e8326358c6c 12 _pin = volume/2.0;
yscho529 0:6e8326358c6c 13 wait(duration);
yscho529 0:6e8326358c6c 14 _pin = 0.0;
yscho529 0:6e8326358c6c 15 }
yscho529 0:6e8326358c6c 16
yscho529 0:6e8326358c6c 17 private:
yscho529 0:6e8326358c6c 18 PwmOut _pin;
yscho529 0:6e8326358c6c 19 };