If the embedded sensors and devices could directly work together and with other computing devices, they would add value to each other and enable new consumer applications. Present requirements for cyber-physical systems are usually too high for implementing them on single, non-netowrked units. Using service oriented architecture is one of the solutions to achieve interoperability and possible future scaling of the system. In our demo we show that a limited subset of XML Web Service protocols can be implemented in a very limited environment. Surprisingly we found that limited XML Web Services implementation introduces only minimal overhead.