A simple Larsen scanner using the onboard LEDs.... because there aren't enough of these already.

Revision:
0:1caccdf9730e
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Sat Feb 27 18:47:50 2010 +0000
@@ -0,0 +1,28 @@
+#include "mbed.h"
+
+BusOut ledarray(LED1, LED2, LED3, LED4);
+
+int main(void) {
+    //A flag to indicate which direction we should rotate
+    bool flag = 0;
+    //the states of the outputs
+    char outstates = 1;
+
+    //Place the outputs in a known state
+    ledarray=1;
+    
+    //Infinite loop
+    while(1) {
+        wait(0.25);
+        if (!flag) {
+            outstates *= 2;
+            if ((outstates>>3)&&1) flag=1;
+        } else {
+            outstates /=2;
+            if (outstates==1) flag=0;
+        }
+        ledarray=outstates;
+    }
+}
+        
+    
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