Ronja is an user controlled technology optical datalink designed using gEDA.
In Czech Republic, Ronja has been used for three practical maturity exams by students of Pardubice Electrotechnical High School - Němec, Sádecký, and Čižinský. You can download their 30-50 page theses and respective powerpoint presentations on the summary page: http://wiki.twibright.com/index.php/RonjaAsMaturityExam The manufactured pieces have been used for construction of neighbourhood network in Chrudim: http://images.twibright.com/images/ronja/installations/czech/chrudim/jeff20_b.jpg CL<
