Arthur Semjonov / Mbed 2 deprecated Cosc4290_Song_demo

Uses 2 Potentiometers on the app-board to control red and green LED. Blue LED is controlled by using Up and Down buttons on the joystick. When Joystick is pressed down, the song will be played.

Dependencies:   mbed

Fork of app-board-RGB by Chris Styles

Diff: songs.cpp

Revision:
1:4a2a53bbc623
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/songs.cpp	Wed Feb 12 21:07:58 2014 +0000
@@ -0,0 +1,32 @@
+/*
+ * song.cpp
+ *
+ *  Created on: Feb 11, 2014
+ *      Author: Artur Semjonov
+ */
+
+#include "mbed.h"
+#include "songs.h"
+
+
+PwmOut speaker(p26);
+DigitalIn off(p14); // middle joystick used to turn off the song
+Songs::Songs() {}
+
+void Songs::songOfMyPeople(float frequency[], float beat[])
+{
+   while(1) { //run infinetly unless interupted
+        for (int i=0; i<=8; i++) {
+            speaker.period(1/(2*frequency[i])); // set PWM period
+            speaker=0.5; // set duty cycle
+            wait(0.4*beat[i]);
+            if (off) {
+                speaker = 0; //reset speaker duty cycle
+                wait(2);     //delay for inferior humans
+                return; 
+            }
+        }
+        speaker = 0;
+        wait(0.25);
+    }
+}
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