my robotic fish Very quick and dirty building (less then 20 hours) . A firs generation of robotic fish , with 3 RC servo that where water proof . A pic 16f877 mcu submerge in epoxy controlling every thing . There is a connection for 3 range sensors for obstacle dictation ,but they are not implemented in the code at this first ganaration. An water do find it's why to every where!! look at my site : www.quickest-owl.com For detailed info about some of this projects in English translate.google.com