reorganizing project to more general synchronizer in preparation for export/delivery to RVK museum.

synchronizer/libraries/MsTimer2/examples/FlashLed/FlashLed.pde

@@ -0,0 +1,42 @@
+char dummyvar; // to get Arduinoi IDE to include core headers properly
+
+/*
+  MsTimer2 is a small and very easy to use library to interface Timer2 with
+  humans. It's called MsTimer2 because it "hardcodes" a resolution of 1
+  millisecond on timer2
+  For Details see: http://www.arduino.cc/playground/Main/MsTimer2
+*/
+#include <MsTimer2.h>
+
+// Switch on LED on and off each half second
+
+#if defined(ARDUINO) && ARDUINO >= 100
+const int led_pin = LED_BUILTIN;	// 1.0 built in LED pin var
+#else
+#if defined(CORE_LED0_PIN)
+const int led_pin = CORE_LED0_PIN;	// 3rd party LED pin define
+#else
+const int led_pin = 13;			// default to pin 13
+#endif
+#endif
+
+
+void flash()
+{
+  static boolean output = HIGH;
+  
+  digitalWrite(led_pin, output);
+  output = !output;
+}
+
+void setup()
+{
+  pinMode(led_pin, OUTPUT);
+
+  MsTimer2::set(500, flash); // 500ms period
+  MsTimer2::start();
+}
+
+void loop()
+{
+}