[knuckles904] was able to use the new Wii MotionPlus with an Arduino. Nintendo has released the WM+ in order to detect the motion of the controller better. The Wiimote only detects acceleration, whereas the WM+ detects rotation along 3 axes. The Arduino communicates with it over I2C, the same protocol that is used with the Nunchuk. To connect the two devices, he used jumper wires, but breakout boards are also available. He was able to create some example code with help from wiibrew.org. When paired with a Nunchuk, which contains a 3-axis accelerometer, you can have a 6 degrees-of-freedom IMU for under $40, perfect for controlling your robots or logging data.
[Benjamin] submitted this slick project. It’s a gesture based control unit for the ipod and iphone. It plugs into the dock port and allows you to control the track and volume with simple gestures. While accellerometer equipped units can already “shake to shuffle”, they lack the ability to simply skip tracks forward or backward. He notes that with an accellerometer, simple gestures can be harder to decipher than with a gyro. The gyro gives the ability to tell which direction you are twisting it, so it’s easier to utilize. [Benjamin] was previously covered when he released the iPodGPS.
[Eric] sent in this cool project that he did as part of his graduation project. He built a game that uses a gyroscope as an input device. For the gyroscope, he’s using a Powerball with a sensor inserted into it. This data is gathered by an Arduino in a pretty enclosure. The whole unit connects to a PC via USB and is supposedly plug and play. There’s a video of the setup in action on the site, just try not to laugh too hard watching them.