Expo2017_example

Dependencies:   mbed

Files at this revision

API Documentation at this revision

Comitter:
ziadeldebri
Date:
Sun May 14 20:14:10 2017 +0000
Commit message:
Expo2017;

Changed in this revision

main.cpp Show annotated file Show diff for this revision Revisions of this file
mbed.bld Show annotated file Show diff for this revision Revisions of this file
diff -r 000000000000 -r 493a823a2708 main.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Sun May 14 20:14:10 2017 +0000
@@ -0,0 +1,30 @@
+#include "mbed.h"
+ 
+DigitalOut led1(LED2);
+DigitalIn alarm(PTB0, PullNone); //internal pull up 
+PwmOut buzzer(PTE31);
+
+
+float freq[] = {659,554,659,554,440,494,554,587,494,659,554,400};
+float beat[] = {1,1,1,1,1,0.5,0.5,1,1,1,1,2};
+
+int main() {  
+    wait(2); //Wait for sensor to take snap shot of still room
+    
+    while(1) {
+        if (alarm){
+            led1=0;
+            for(int i = 0 ; i <= 4; i++){
+            buzzer.period(1/(2*freq[i]));
+            buzzer = 0.5;
+            wait(0.4*beat[i]);
+            } 
+        }
+        else {
+            led1=1;
+            buzzer = 0;
+             }
+             wait(1);
+    }
+
+}
\ No newline at end of file
diff -r 000000000000 -r 493a823a2708 mbed.bld
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Sun May 14 20:14:10 2017 +0000
@@ -0,0 +1,1 @@
+https://mbed.org/users/mbed_official/code/mbed/builds/4eea097334d6
\ No newline at end of file