Macdonald Nwabia / Mbed 2 deprecated ElderPlus_SecuritySystem

2nd year embedded systems project

Dependencies:   mbed C12832

Diff: Door_1_Docs/Speaker.h

Revision:
1:9d7c34bfe43e
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Door_1_Docs/Speaker.h	Tue Dec 15 18:15:48 2020 +0000
@@ -0,0 +1,19 @@
+#include "mbed.h"
+// 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;
+};
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