luaxpl

xPL is an open source home automation protocol. LuaxPL provides
all the basic ingredients for building your own xPL applications.
Additionally it includes commandline utilities to send
and log xPL traffic. A device template is included and the
commandline utilities can be used as examples to quickly get up
and running. One application is included to detect occupancy of
a home based on smartphone detection (network connections).
See http://xplproject.org.uk for more information on xPL.