for an inhouse sensor network I'm looking for the right point to start. There are several free solutions around (Contiki, TinyOS, BitCloud,...). I know that these three are OS but they all provide communication methods. They all share more or less the same hardware (M128*, RF230) but when to use what?
The demands for my project are:
I would like to transfer mesaured values every 10 second from 5 motes for a small network to 50 / 100 motes for a big network. The motes might communicate directly with the data sink, but do not have to - routing / caching is necessary. To correlate the measured values a real-time timestamp is necessary. Update over the air is currently not planned.