There's an RS485 Peer-To-Peer sketch I posted on my github page that's free to use by anybody who wants. Might be a start. Doesn't use interrupts but uses packets and does address checking.
There's an RS485 Peer-To-Peer sketch I posted on my github page that's free to use by anybody who wants. Might be a start. Doesn't use interrupts but uses packets and does address checking.