Hacking Europe pp 219-239 | Cite as

Users in the Dark: The Development of a User-Controlled Technology in the Czech Wireless Network Community

  • Johan Söderberg
Part of the History of Computing book series (HC)


“Ronja” is a piece of hardware used for sending data by means of visible light. The technology was developed by users in the Czech wireless network community. The philosophy behind the project states that anyone lacking previous knowledge of electronics should be able to build the device by themselves. In order to realize this vision, the mechanics and electronics were designed with generally available and off-the-shelf components. The instructions for building the device are published on the Internet under a free license. These principles have been summarized under the label “user-controlled technology.” At the center of the case study is a schism in the Czech wireless community over the commercialization of Ronja. The article looks at how the growing market demand for free space optics in the Czech wireless community called forth a redesign of the product in line with the requirements of mass production. The relation between a “democratization of innovation” and the entrepreneurship that flourished around the product was marked by internal tensions.


Czech Republic Wireless Network Print Circuit Board Internet Service Provider Optical Link 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



 The case study in the Czech Republic was made possible, thanks to a grant which was awarded to me by .SE-stiftelsen. I also received financial support from Laboratoire Techniques, Territoires et Sociétés (LATTS) for finalizing the text. My gratitude is also extended to Marie Wenger and Liz Libbrecht who gave me important feedback. Finally, I want to express my appreciation for the people I met in the Czech wireless network scene.


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Copyright information

© Springer-Verlag London 2014

Authors and Affiliations

  1. 1.Göteborgs UniversitetGöteborgSweden
  2. 2.Laboratoire Techniques, Territoires et Sociétés/Institut Francilien Innovation et SociétéUniversité Paris-EstParisFrance

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