Added Runbootloader example

Alternative way to the USB-Serial Bridge

examples/Projects/HoodLoader2_RunBootloader/HoodLoader2_RunBootloader.ino

@@ -0,0 +1,33 @@
+/*
+ Copyright (c) 2015 NicoHood
+ See the readme for credit to other people.
+
+ HoodLoader2 Run Bootloader example
+
+ Starts Bootloader mode.
+ This is useful if you only want to use
+ the USB-Serial bridge again.
+ 
+ You could delete the program with avrdude,
+ but this sketch is way simpler to upload.
+ 
+ It forces a watchdog reset,
+ meaning the bootloader is started completely indipendant.
+*/
+
+#include <avr/wdt.h>
+
+void setup() {
+  // close interrupts
+  cli();
+
+  // write magic key to ram
+  *(uint8_t *)0x0280 = 0x77;
+
+  // watchdog reset
+  wdt_enable(WDTO_120MS);
+}
+
+void loop() {
+  // wait for reset
+}