added url of blog post from which is source code

[Arduino] / HUB12_simple / HUB12_simple.ino

diff --git a/HUB12_simple/HUB12_simple.ino b/HUB12_simple/HUB12_simple.ino
index 250a034..fa2def0 100644 (file)
--- a/HUB12_simple/HUB12_simple.ino
+++ b/HUB12_simple/HUB12_simple.ino
@@ -3,6 +3,7 @@
 *
 *  Sample sketch for driving 32x16 LED PANEL (1/4 scan) with
 *  HUB12 protocol
+*  http://blog.vettore.org/building-a-large-led-sign-with-inexpensive-standard-modules-and-arduino/
 *
 *************************************************************/