The growing adoption of Internet of Things technologies leverages the development of complex IoT applications. This situation is particularly visible in the consumer electronics realm, where integrating products from different manufacturers requires considerable effort. Currently the development of IoT applications is a time consuming task that demands expertise from different areas. This situation motivates the creation of tools that reduce the effort of creating IoT applications.This work aims to simplify the creation of ready-to-run semantic services from a high-level description. We proposed and implemented the SwarmGen framework, and successfully tested the results in an existing configuration, with a reduced development effort.