Is the wire already in place? If so, then you could start experimenting with various communication methods to see which work. what communication speed do you need? The simplest would probably be TTL serial, followed by rs232 serial.
Is the wire already in place? If so, then you could start experimenting with various communication methods to see which work. what communication speed do you need? The simplest would probably be TTL serial, followed by rs232 serial.