I know this is an Old topic but this is exactly what im trying to do. I get a "problem uploading to board" error when trying to upload the code from this thread. im using the latrest arduino board and the latest software 0013.
avrdude: stk500_getsync(): not in sync: resp=0x00
avrdude: stk500_disable(): protocol error, expect=0x14, resp=0x00
is there any working code to make a robot like this floating around?