Diff: main.cpp

Revision:

0:4d8659571a83

diff -r 000000000000 -r 4d8659571a83 main.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Tue Jul 28 11:56:43 2020 +0000
@@ -0,0 +1,27 @@
+#include "mbed.h"                     //Preprocessor Directives
+
+DigitalIn fire(p14);                  // Declarations
+PwmOut spkr(p26);
+AnalogIn pot1(p19);
+float start=2000.0; 
+float end=10000.0; 
+float step=100; 
+
+int main()                      //instructions in main () function 
+{
+     while (1) {
+        {for (float i= start; i<end; i+=step) {
+        spkr.period(1.0/i);
+        spkr=0.5;
+        wait(0.1);}
+        {for (float i= start; i<end; i+=step) {
+        spkr.period(1.0/i);
+        spkr=0.9;
+        wait(0.3);}
+        }
+        spkr=0.0;
+        while(pot1.read() < 0.5) {} // this uses the pot to control the program
+    
+        }
+    }
+}
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