This is a new smart 3D orientation sensor from STMicro. It can detect orientation in 6 positions (upside down, left, right, etc.) through dedicated digital signal lines. In addition, an interrupt signal is driven to detect click and double clicks similar to a mouse button. Includes a power down mode and a motion triggered wake up. Its kind of like a stripped down accelerometer - the FC30 tells you only your orientation in space. The most common example is in cell phones and cameras to change the display from vertical to horizontal when you turn the device on its side.
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