Connecting things to the web using programmable low-power WiFi modules

  • Authors:
  • Benedikt Ostermaier;Matthias Kovatsch;Silvia Santini

  • Affiliations:
  • Institute for Pervasive Computing, ETH Zurich, Zurich, Switzerland;Institute for Pervasive Computing, ETH Zurich, Zurich, Switzerland;Institute for Pervasive Computing, ETH Zurich, Zurich, Switzerland

  • Venue:
  • Proceedings of the Second International Workshop on Web of Things
  • Year:
  • 2011

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Abstract

We present first experiences of using programmable low-power WiFi modules for connecting things directly to the Web. Instead of relying on dedicated low-power radio technology and specialized protocols, we leverage the ubiquity of IEEE 802.11 access points and the interoperability of the HTTP protocol. Using a loosely coupled approach, we enable seamless association of sensors, actuators, and everyday objects with each other and with the Web. Our experimental results show that low-power WiFi modules can achieve long battery lifetime despite the fact that we are using HTTP over TCP/IP for communication.