Document the BlinkLED and ChaseLEDs examples

libraries/BlinkLED/examples/Cylon2/Cylon2.pde

@@ -0,0 +1,32 @@
+/*
+Sketch that manipulates Arduino outputs to create the "Cylon Eyes" effect from
+Battlestar Galactica.  It uses the ChaseLEDs utility class.
+
+This example is placed into the public domain.
+*/
+
+#include <ChaseLEDs.h>
+
+class CylonChase : public ChaseLEDs
+{
+public:
+  CylonChase(const byte *pins, int num, unsigned long advanceTime)
+    : ChaseLEDs(pins, num, advanceTime) {}
+
+protected:
+  void advance(byte prevPin, byte nextPin) {
+    digitalWrite(previousPin(2), LOW);
+    digitalWrite(prevPin, HIGH);
+    digitalWrite(nextPin, HIGH);
+  }
+};
+
+byte pins[] = {3, 5, 6, 9, 10, 11, 10, 9, 6, 5};
+CylonChase cylonEyes(pins, sizeof(pins), 100);
+
+void setup() {}
+
+void loop() {
+  cylonEyes.loop();
+}
+