User Guide

Si1140-DK
6 Rev. 0.3
3.1.2. Gesture Sensing
In addition to infrared and ambient light measurements and distance calculations, the example firmware contains
algorithms for gesture recognition. When connected to the board with the Performance Analysis Tool, a group
window will appear, as shown in Figure 5. When a gesture is recognized by firmware, the gesture name and
parameter information will be added to the top of the 3D Gesture group. Four gestures are supported by the
example code. The parameters for each gesture are listed in Table 2.
Figure 5. Performance Analysis Tool Group Window
Table 2. Recognized Gestures
Gesture Name Parameter Parameter Range Description of Action
Swipe Left Speed 1 18 (Slow to Fast) Move hand rapidly from the right side to the left side
of the board.
Swipe Right Speed 1 18 (Slow to Fast) Move hand rapidly from the left side to the right side
of the board.
Swipe Up Speed 1 18 (Slow to Fast) Move hand rapidly from the bottom to the top of the
board.
Swipe Down Speed 1 18 (Slow to Fast) Move hand rapidly from the top to the bottom of the
board.
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