In this demonstration we show the first fully operational CCNx stack on a wireless sensor network. We implemented CCNx as a native C experimental extension of Contiki, an operating system dedicated to Internet of Things applications. Our extension is based on CCNx modified to run as a network driver on top of different available MAC protocols implementations in Contiki. The prototype has been tested on TelosB and sky motes. We demonstrate our extension with a monitoring application where a sink node is sending different interests towards existing deployed wireless nodes to collect monitoring data from their local content stores.