I have an arduino mega 1280 that I use as a master device. I have a duemilanove as a slave device. I want the slave to read the master’s output. I have grounds tied, both arduinos have their own dedicated power source, and I have the Mega’s TX pin going straight to the nove’s RX pin. The problem is the nove won’t read any data from the Mega.
I tried using softwareserial, but that dosen’t work either. The weird thing about that library is it forces a servo to spaz out whenever it’s receiving data from the mega, yet it isn’t interpreting the data.
What I find the weirdest is if I tell the nove to send data to the mega, it works just fine. If I use USB, everything works fine. I’ve been trying to figure this out for nearly 4 hours and it makes no sense.