This is a home project to automate my old Arcam AVR300 AV Amp. It's got a serial port on the back that lets you monitor and control it - volume, source selection, effects.
Basically I want to be able to control it from my phone over Wifi rather than trying to find the remote all the time. There are many OSC apps for iPhone and Android. I'm currently using Clean-OSC on iPhone.
The port is null modem wired, garrggh. Using a USB RS232 adapter, you also will need to use a null modem cable to un-null it.
On a Mac, hit ctrl-v for a 0x0d (\r)
screen /dev/ttyUSB0 38400
# Mute Zone 1
PC_.10
AV_.10