besides an open source 802.15.4, there's also another task you can
try. this is an "gateway" or "bridge" between Internet and WSN
networks. while, this gateway is also the interface for wsn's further
developing, maintainence, and management. we have issued a host
resident child project "libopen/libsink". however, it can only run on
Windows. in the future, we will port it to some embedded hardware
device. this device should have an TCP/IP port (better Ethernet ) to
the Internet and a wireless link to the WSN network. i think uCLinux
is a approprate solution for such devices.
design an interface for the WSN is quite difficult. i can only write a
little of it. the old version of "libsink" was implemented by master
Zhou. in the near future, we will extend it to satisfy the future
requirements. the gateway may have similar functions but it's more
complicated.