Recently, many low-profile devices with RF communication features have been developed such as sensor network nodes and one-chip microcomputers. This caused a variety of gadgets join to the wireless network. However, in order to realize collaborations between these devices, generally we have to develop complicated distributed software. In this paper, we propose an automatic software decentralization method, which converts a stand-alone software program into distributed software programs. In order to execute the generated software on these low-profile devices, we employ the programming language nesC for a decentralization target. We also have implemented applications with real hardware devices to exemplify that the proposed method successfully improves the ease of development.