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The current tendency to embed computational resources on quotidian objects transforms them into smart objects. This is the vision of Internet of things, where many different devices collect and process information from different sources to both control physical processes and interact with human users. Initially wireless sensor networks and Internet of things concepts were used with the same meaning. The same happened with wireless sensor networks and the protocol IEEE 802.15.4. It is now accepted that the Internet of tings can comprise more than one type of networks and therefore several layer two protocols. In such scenarios the IP protocol it is used, like as before, to make this heterogeneity interoperable. This paper presents a demonstrator for power energy monitoring and actuating system and it was developed for home environments. This system is based on 6LoWPAN to connect to the Internet a smart …