Sensor Fusion is a process by which data from several different sensors are "fused" to compute something more than could be determined by any one sensor alone. An example is computing the orientation of a device in three dimensional space. That data might then be used to alter the perspective presented by a 3-D GUI or game.
This educational application by Freescale Semiconductor teaches you about sensor fusion and lets you experiment with various fusion options. It does not REQUIRE that your Android device use Freescale sensors. It IS compatible with the Xtrinsic Sensor Fusion Library for Kinetis MCUs. Compatible hardware and embedded software are available at http://www.freescale.com/sensorfusion.
The application also supports the Avnet Wi-Go module paired with a Freescale Freedom board (see www.em.avnet.com/wi-go for details). When used without a development board, this app just lets you experiment with what you already have on your Android device.
This tool is the subject of a Freescale blog posting at: https://community.freescale.com/community/the-embedded-beat/blog/2013/04/08/free-android-app-teaches-sensor-fusion-basics . The fusion library is discussed at https://community.freescale.com/community/the-embedded-beat/blog/2014/02/24/xtrinsic-sensor-fusion-library-for-kinetis.
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Freescale Semiconductor (http://www.freescale.com) is a global leader in embedded processing solutions including MPUs, MCUs, sensors, analog integrated circuits and connectivity.
Version 2014.05.23 adds support for KL26Z and K64F Freedom boards, documentation updates and minor GUI adjustments. This version of the toolbox works best with Version 417 of the Xtrinsic Sensor Fusion Library for Kinetis MCUs, available at http://www.freescale.com/sensorfusion.