The sensor can create up to twelve, unique, tap-enabled commands for customer-specified functions.
Kionix calls it the KXTF9 Directional Tap/Double-Tap accelerometer. It operates by the detection of a quick, light tap, or double tap, on any of the six faces of an object (±X, ±Y, and ±Z).
The embedded algorithm allows the accelerometer to discern a single or double tap and the direction from which the tap originated. The taps can be used as commands to applications on end-products to create novel user experiences.
“A single tap to the face of a cell phone could send the call to voicemail or silence the ringing; a tap to the left could enable the navigation functionality; a double tap on the bottom could provide a transition to Internet access”, said Greg Galvin, president and CEO of Kionix.
With an industry-standard I2C interface, the KXTF9 has user-programmable Output Data Rate (ODR) with A-D conversions executed at user-defined sampling rates, selectable 8-bit or 12-bit resolution, user-selectable g-range (2g, 4g, and 8g), a digital high-pass filter with a user-selectable cut-off frequency and comes in a 3x3x0.9mm, 10-pin, LGA.