| geom2d | Simple 2D geometry |
| hydrobros1 | Converts between the types of BROS-I C++ library and Orca types |
| hydroctext | Simple text colours on the Linux terminal, using escape-codes |
| hydrodll | Dynamically loads C++ classes |
| hydrogpsutil | Library containing GPS related functions |
| hydroiceutil | LibHydroUtil customizes libIceUtil to simplify writing Orca components |
| hydronavutil | LibOrcaNavUtil Mobile Robot Navigation Utility Functions |
| hydroogmap | LibHydroOgMap provides OgMap manipulation utilities |
| hydropathplan | Library useful for path planning applications |
| hydroping | Wraps up liboping (http://verplant.org/liboping/) |
| hydroqgui | Library useful to build Qt GUIs for 2d robotics applications |
| hydroqguielementutil | Defines levels for z-buffering in views. Simple z-buffering, higher-z items obscure (are in front of) lower-z items (just like QCanvas) only z levels between Z_BACKGROUND and Z_FOREGROUND inclusively are painted |
| hydroutil | LibHydroUtil provides classes for defining Hydro driver and algorithm interfaces |
| wifiutil | Functions to access the wireless interface |