| Sqrl said: @Naz, It can't do height but the rest you have correct. It does know which direction is down however as gravity applies constant acceleration on the wii-mote. |
The known real-world dimensions of the spacing between the LEDs on the bar allows the Wii Remote to calculate its distance from the bar, while the tilt and rotation of the Wii Remote with respect to the ground can be calculated from the relative angle of the Sensor Bar (which sees the bar as two bright dots) and the data sensed by the accelerometers.
http://en.wikipedia.org/wiki/Wiimote
Edit: I suppose I probably misinterpreted that to some extent. You're right it doesnt do height with respect to the ground, just tilt and angle with respect to the ground. I edited the original post to reflect this.
