Sensor nodes are autonomous devices that combine sensing, computing and wireless communication capabilities. These nodes are deeply embedded into the physical surroundings, and gather and process information such as temperature, humidity, light characteristics, seismic activities or images and sound samples from the physical world. Networked systems of such sensors are expected to be used in a variety of applications including habitat monitoring, precision agriculture, disaster recovery operations, healthcare and supply chain management. Real-world sensor network deployments are still scarce, yet prototypic implementations are getting more common, particularly with the advent of novel sensing platforms such as smartphones, which allow for extending dedicated sensor networks. Experiences gained in such deployments are crucial for the sensor network research community. These results are needed to refine assumptions made when designing hardware, software, protocols and mechanisms for sensor networks. This workshop aims at bringing together researchers from both academia and industry to showcase their work and obtain feedback. We expect the workshop to act as a forum for the sensor network research community to discuss open issues, novel solutions and the future development of wireless sensor networks in general. We encourage contributions describing innovative work in the realm of wireless sensor networks.