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bknoth
10-10-2009, 02:02 AM
hi-


can anyone tell me what the raw wiimote data is in terms of resolution (how many bits?) and sampling rate (in HZ?) through OSCulator prior to OSC/MIDI etc. conversions?


Thanks

Brian

camille
10-10-2009, 11:50 PM
Hello Brian,


The X axis of the accelerometers has a precision of 10 bits, Y and Z, 9 bits.

For the nunchuck the accelerometers have a precision of 8 bits in OSCulator 2.8.8, but they will have 10 bits in the next version.


The rate of data reporting is roughly equal to 100 hz. The events are not down-sampled in OSCulator, that means Wiimote messages are received and processed in the application at the same rate as they are sent by the device.


Best,

Cam

bknoth
10-11-2009, 01:32 PM
cheers!


did i miss this info somewhere? is it documented and i did not look hard enough?


thanks much. that's pretty nice data, btw.

camille
10-11-2009, 08:46 PM
Well, this really depends on the various driver implementations, most of them are only 8 bits. I've made sure we can squeeze the last bits of data given by the sensors.


If you want in depth technical information, you can visit wiibrew.org (http://www.wiibrew.org), this is mostly where I get information on the Wiimote and its accessories.


I have not documented the characteristics of the Wiimote on the website though I think it could be a good idea.