Pd-wiimote is a project mainly written in C and PURE DATA, it's free.
A puredata external for accessing the wiimote controller
[wiimote] is a Pd-object that allows to read data from a Wii Remote Controller it depends on libcwiid, which is currently only available on linux
the external is known to support the nunchuck, classic, motionplus extensions the balance extension might work, but is currently untested (if it doesn't work and you need it, contact me to and send me the hardware)
the motionplus extension for the wiimote is supported (out of the box, see above). however, older releases of libcwiid are inaccurate at detecting rotation speed (the wii remote reports whether the controller is turned fast or slow; this info is missing in libcwiid). if you have such a version of libcwiid and need higher precision, you have to patch the sources of libcwiid: $ cd /path/to/cwiid/libcwiid $ patch < /path/to/wiimote/patches/cwiid201_motionplus_sensitivity.patch $ cd /path/to/cwiid/ $ make (read README to see how to patch libcwiid)
once you have done that, you need to make the external aware of the new feature. for this create a file /path/to/wiimote/Make.local and add the following line: CFLAGS += -DHAVE_CWIID_MOTIONPLUS_LOWSPEED
then recompile wiimote
[LATER describe that]
get in contact with me either via the pd-list (http://lists.puredata.info/listinfo/pd-list) or directly via zmoelnig[at]iem[.]at