Test the push button on m3pi connected to p21. when button pressed led 3 will light , otherwise led 1 will light

Dependencies:   mbed

Revision:
0:40d062361f4e
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Sat Apr 06 14:24:56 2013 +0000
@@ -0,0 +1,23 @@
+#include "mbed.h"
+
+DigitalIn button(p21);
+DigitalOut led(LED3);
+DigitalOut myled(LED1);
+
+int main() 
+{
+    button.mode(PullUp);
+    while(1) 
+    {
+        if (button)
+        {
+            myled = 1;
+            led=0;
+        }
+        else
+        {
+            myled = 0;
+            led=1;
+        }
+    }
+}
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