cleanup basic example

src/Sprocket.h

@@ -9,6 +9,9 @@
 using namespace std;
 using namespace std::placeholders;
 
+// FIXME move to some global fnc lib
+#define ARRAY_LENGTH(array) sizeof(array)/sizeof(array[0])
+
 struct SprocketConfig {
     int startupDelay;
     int serialBaudRate;
@@ -28,7 +31,8 @@ class Sprocket {
         virtual Sprocket* activate();
         virtual Sprocket* activate(Scheduler*) { return this; }
         virtual Sprocket* activate(Scheduler*, Network*) { return this; }
-        //virtual void dispatch(uint32_t from, String &msg) {};
+        // TODO bind onMessage to network->onReceive
+        //virtual void onMessage(uint32_t from, String &msg) {};
 };
 
 #endif