I had an initial memory issue which was resolved in this thread: http://arduino.cc/forum/index.php/topic,158714.0.html
I have a system setup to control a 25x15 LED array which is working just fine. Now, I am trying to add in some code into the program to receive data from a WRL-10532 radio receiver to control what is displayed on the LED array using the VirtualWire library.
My code is attached (too large to post in topic). The thing is that if I comment out the init code for the receiver, the LED array works fine. If though, I keep the init code for the receiver active, the LED board is always ON. All LEDs are on.
It is strange though since if I output everything with Serial, all data is just fine. Just commenting out the init code (nothing else) fixes the issue and the LEDs do what they are supposed to. I can keep all other VirtualWire receiver code in, no problem.
The problem code is on line 269 - 272. Disconnecting all wires for the radio receiver doesn’t make any change. What could be causing this very strange problem?
Backpack.ino (31.9 KB)