Why don't just use the good old RS-485? I've been sucessfully using that... Easy and cheap...
Is there an arduino networking stack that uses 485? I was hoping for a full fledged solution. Perhaps I need to look into the LEDuino.
Look at recent threads on I2C networking (e.g. "aurduino dual core").
I searched for both of those threads and could not find them. Could you help me out out and point to them specifically, perhaps they need some other keyword to find them?
A blatantly obvious way to network Arduinos is with the new Ethernet shield.
Yes, thanks. I would however like to have a simple lighterweight solution that hopefully uses already onboard hardware. The ethernet shield seems to cost more than the arduino!