nexbridge
Makes Celestron mounts controlable over the network
...Communication to the hand control is 9600 bits/sec, no parity and one
stop bit via the RS-232 port on the base of the hand control.
It can publish the service using mDNS as XXX._nexbridge._tcp.local.
where XXX is user specified name with "-s" option.
Now ttynet tool is added which connects a virtual serial port to a network exported serial port.